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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 
FORM 10-K

(Mark One)
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20202023
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
Commission File Number: 001-38221
PQ Group HoldingsEcovyst Inc.
Delaware 81-3406833
(State or other jurisdiction of
incorporation or organization)
 (I.R.S. Employer
Identification No.)
 
300 Lindenwood Drive 
Malvern, Pennsylvania19355
(Address of principal executive offices) (Zip Code)

(610)(484)651-4400617-1200
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading symbolName of each exchange on which registered
Common stock, par value $0.01 per sharePQGECVTNew York Stock Exchange
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  ý Yes  ¨  No
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    ¨ Yes  ý  No
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ý Yes  ¨  No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    ý Yes  ¨  No



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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer   Accelerated filer 
    
Non-accelerated filer   Smaller reporting company 
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C 7262(b)) by the registered public accounting firm that prepared or issued its audit report.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).      ☐ Yes  ý  No
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☒
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b).
The aggregate market value of PQ Group HoldingsEcovyst Inc. voting and non-voting common equity held by non-affiliates as of June 30, 20202023 (the last business day of the registrant’s most recently completed second fiscal quarter) based on the closing sale price of $13.24$11.46 per share as reported on the New York Stock Exchange was $537,729,982.$1,224,419,405.
The number of shares of common stock outstanding as of March 12, 2021February 23, 2024 was 136,937,196.116,983,842.

DOCUMENTS INCORPORATED BY REFERENCE
Portions of the PQ Group HoldingsEcovyst Inc. Proxy Statement for the 20212024 Annual Meeting of Stockholders are incorporated by reference into Part III of this report.



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PQ GROUP HOLDINGS INC.Ecovyst Inc.

INDEX—FORM 10-K
December 31, 20202023

Page
Item 1.
Item 1A.
Item 1B.
Item 1C.
Item 2.
Item 3.
Item 4.
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
Item 15.
Item 16.
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PART I
Forward-looking Statements and Risk Factor Summary
This Annual Report on Form 10-K (“Form 10-K”) includes “forward-looking statements” that express our opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should” and similar expressions are intended to identify these forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short- and long-term business operations and objections,objectives, and financial needs. Examples of forward-looking statements include, but are not limited to, statements we make regarding the announced pending sale of our Performance Chemicals segment, the impact of the novel coronavirus (“COVID-19”) pandemicdemand trends, global economic effects on our operations and financial results and our liquidity, includingand our belief that our current level of operations, cash and cash equivalents, cash flow from operations and borrowings under our credit facilities and other lines of credit will provide us adequate cash to fund the working capital, capital expenditure, debt service and other requirements for our business for at least the foreseeable future.next twelve months.
These forward-looking statements are subject to a number of risks, uncertainties and assumptions. Moreover, we operate in a very competitive and rapidly changing environment and new risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed herein may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements.
Some of the key factors that could cause actual results to differ from our expectations include the following risks related to our business:

the impact of the ongoing COVID-19 pandemic on the global economy and financial markets, as well as on our business and our suppliers, and the response of governments and of our company to the outbreak;
as a global business, we are exposed to local business risks in different countries;
we are affected by general economic conditions and economic downturns;
exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows;
our international operations require us to comply with anti-corruption laws, trade and export controls and regulations of the U.S. government and various international jurisdictions in which we do business;
alternative technology or other changes in our customers’ products may reduce or eliminate the need for certain of our products;
our new product development and research and development efforts may not succeed and our competitors may develop more effective or successful products;
our substantial level of indebtedness could adversely affect our financial condition;
if we are unable to manage the current and future inflationary environment and to pass on increases in raw material prices, including natural gas, or labor costs to our customers or to retain or replace our key suppliers, our results of operations and cash flows may be negatively affected;
we face substantial competition in the industries in which we operate;
we are subject to the risk of loss resulting from non-payment or non-performance by our customers;
we rely on a limited number of customers for a meaningful portion of our business;
multi-year customer contracts in our refining servicesEcoservices segment are subject to potential early termination and such contracts may not be renewed at the end of their respective terms;
our quarterly results of operations are subject to fluctuations because the demand for some of our products is seasonal;
our growth projects may result in significant expenditures before generating revenues, if any, which may materially and adversely affect our ability to implement our business strategy;
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we may be liable to damages based on product liability claims brought against us or our customers for costs associated with recalls of our or our customers’ products;
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we are subject to extensive environmental, health and safety regulations and face various risks associated with potential non-compliance or releases of hazardous materials;
existing and proposed regulations to address climate change by limiting greenhouse gas emissions may cause us to incur significant additional operating and capital expenses and may impact our business and results of operations;
production and distribution of our products could be disrupted for a variety of reasons, including as a result of supply chain constraints, and such disruptions could expose us to significant losses or liabilities;
the insurance that we maintain may not fully cover all potential exposures;
we could be subject to damages based on claims brought against us by our customers or lose customers as a result of the failure of our products to meet certain quality specifications;
our failure to protect our intellectual property and infringement on the intellectual property rights of third parties;
lossesdisruption, failure or cybersecurity breaches affecting or targeting computers and damages in connection with information technology risks couldinfrastructure used by us or our business partners may adversely affectimpact our business and operations; and
the other risks and uncertainties discussed in “Item 1A—Risk Factors.”

The forward-looking statements included herein are made only as of the date hereof. You should not rely upon forward-looking statements as predictions of future events. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee that the future results, levels of activity, performance or events and circumstances reflected in the forward-looking statements will be achieved or occur. Moreover, neither we nor any other person assumes responsibility for the accuracy and completeness of the forward-looking statements. We undertake no obligation to update publicly any forward-looking statements for any reason after the date of this Form 10-K to conform these statements to actual results or to changes in our expectations.
ITEM 1.    BUSINESS.
Ecovyst Inc. (“Ecovyst” or the “Company”), formerly PQ Group Holdings Inc. (“PQ Group Holdings” or the “Company”) was incorporated in Delaware on August 7, 2015. PQ Holdings Inc. (“PQ Holdings”), a manufacturerWe trace our roots to the late 1800’s with our first sulfuric acid plant and the beginning of specialty catalysts, chemicals and services, was incorporated in Delaware on June 22, 2007. Founded in 1831, our oldest customer relationship. Our business has a nearly 200-year history of innovation, enabling environmental improvements in areas such as fuel efficiency, sustainable fuels and the abatement of emissions and healthier personal care products,from heavy-duty diesel engines, while improving the sustainability of our planet. On May 4, 2016, we consummated a series of transactions (the “Business Combination”) to reorganize and combine the then-existing businesses of PQ Holdings andwith Eco Services Operations LLC under a new holdings company, then called PQ Group Holdings. On October 3, 2017, PQ Group Holdingswe completed itsour initial public offering (“IPO”).
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P. Effective on August 1, 2021, we completed the sale of our Performance Chemicals business to Sparta Aggregator L.P., a partnership with Koch Minerals & Trading, LLC and Cerberus Capital Management, L.P. The results of operations, financial condition, and cash flows for the Performance Materials and Performance Chemicals businesses are presented herein as discontinued operations for the 2022 and 2021 periods presented. Refer to Note 4 to our consolidated financial statements for additional information.
Our common stock is listed on the New York Stock Exchange under the stock ticker “PQG”“ECVT”. On August 1, 2021, we changed our name from “PQ Group Holdings Inc.” to “Ecovyst Inc.,” changed the ticker symbol of our common stock listed on the New York Stock Exchange from “PQG” to “ECVT”. On November 28, 2023, the Company renamed the “Catalyst Technologies” segment to "Advanced Materials & Catalysts”. Unless the context otherwise indicates, the terms “PQ Group Holdings“Ecovyst Inc.,” “we,” “us,” “our,” or the “Company” mean PQ Group HoldingsEcovyst Inc. and our subsidiaries.
On December 14, 2020, PQ Group Holdings completed the sale of its Performance Materials business to Potters Buyer, LLC (the “Purchaser”), an affiliate of The Jordan Company, L.P., for a purchase price of $650 million, which was subject to certain adjustments for indebtedness, working capital, and cash at the closing of the transaction. The results of operations, financial condition, and cash flows for the Performance Materials businesses are presented herein as discontinued operations. Except where noted, any tables, percentages or metrics included within this filing exclude the results of our former Performance Materials business. Refer to Note 4 to our Consolidated Financial Statements for additional information.
On March 1, 2021, PQ Group Holdings announced the entry into a definitive agreement to sell its Performance Chemicals business to a partnership established by Cerberus Capital Management, L.P. and Koch Mineral & Trading LLC for a purchase price of $1.1 billion, which is subject to certain adjustments including for indebtedness, cash, working capital and transaction expenses. The transaction is expected to be completed in 2021.
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Our Company
We are ana leading integrated and innovative global provider of advanced materials, specialty catalysts chemicalsand services. We believe that our products and services that enable environmental improvements and enhance consumer and industrial products.contribute to improving the sustainability of the environment. Our value-added products seek to address global demand trends that are often either the subject of significant environmentalenvironmental and safety regulations or are driven by consumer preferences for environmentally friendlier alternativemore sustainable products, which provides us with high-margin growth opportunities. We believe that our products contribute to lower emissions and cleaner air, higher fuel efficiency and cleaner fuels, and key enablers to advance the global transition to clean energy. Specifically, our products and solutions help companies in the production of sustainable fuels and help to produce vehicles with improved fuel efficiency and cleaner emissions. Our materials are critical ingredients in consumer products that make teeth brighter and skin softer. Because our products are predominantly inorganic and carbon-free, we believe we contribute to improving the sustainability of our planet.
We believe we are a leader in each of our business segments, holding what we estimate to be a number one or number two supply share position for products that generated more than 90% of our 20202023 sales. We believe that our global footprint and efficient network of strategically located manufacturing facilities provide us with a strong competitive advantage in serving our customers both regionally as well as globally.
Our products typically constitute a small portion of our customers’ overall end-product costs, yet are critical to product performance. We believe, with our long history of establishedcustomer partnerships with our customers and our reputation for providing reliable, quality of products and solutions, our products deliver significant value to our customers, as demonstrated by our profit margins. Our products typically constitute a small portion of our customers’ overall end-product costs yet are critical to product performance.
We have a near 200-yearlong track record of innovation that is reflected in our technical and production expertise in silicates, silica, zeolites and catalyst technologies.
We are highly diversified by business, geography and end use. In 20202023, the majority of our sales were for applications that have historically had relatively predictable, consistent demand patterns driven by consumption or frequent replacement cycles.
As a result of our competitive strengths, we have generally maintained stable margins through changing macro economic cycles.
In 2020,2023, we served over 2,000global customers globally across many end uses and as of December 31, 2020,2023, operated 40 manufacturing facilities which areout of ten strategically located across fivecontinents.
pqg-20201231_g1.jpgmanufacturing facilities.

(1)Percentage calculations include $128.6 million of total sales attributable to the Zeolyst Joint Venture (“Zeolyst JV”), which represents 50% of its total sales for the year ended December 31, 2020. The Zeolyst JV sales are included in both the Fuels & Emission Controls and Packaging & Engineered Plastics end uses. Refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Basis of Presentation” for a description of the treatment of the Zeolyst Joint Venture in our consolidated financial information.
(2)Based on the delivery destination for products sold in 2020.

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Our Strategy
We intend to capitalize on our strong business foundation, market-based approach,fundamentals, sustainability driven innovation and experienced management teamcustomer partnerships to grow sales, profitably, maintain high margins, deploy capital efficiently and generate consistent free cash flow in order to create shareholder value. We believe that our long history of operational excellence and proven reliability, technology leadership, strong customer relationships, innovation track record and consistent business execution developed from our almost two centuries of combined industry experience positions us well to execute our business strategy.
Our Industry
Our industry is characterized by constant development ofa strong commitment to innovate and to develop enhanced performance and solutions that improve environmental, health and sustainability. In turn, this drives Ecovyst to constantly develop new products and the need to support our customers with new product innovation and technical servicesservices. Our innovation is strongly focused on customer partnerships. We believe a key capability is our ability to meet their needs, coupledgo from laboratory to pilot to full scale production with consistent product qualityboth the speed and a reliable source of supply in a safe and environmentally sustainable manner. consistency required for our customers’ demand for our products.
Products soldthat we sell to our customers can beare often high value-add, even when they represent a small portion of the overall end product costs, and we believe success can be achieved by helping customers improve their product performance, value and quality. As a result, operating marginsWe believe many of the end uses that we serve are generally more resilient to economic cycles, minimizing extreme fluctuations in this sector have historically been high and generally stable through economic cycles.demand. In addition, many products inhave relatively high switching costs, including the specialty chemicals industry benefit from economics that favorrisk of quality failures, thus making it more beneficial for customers to work with incumbent producers becauseproducers. In addition, the capital cost to expand existing capacity is typically significantly less than the capital cost necessary to build a new plant. TheWe believe the combination of attractive operating margins, growing end uses and generally predictable maintenance capital expenditure requirements can produceimproves our ability to generate attractive cash flows.
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Our Product End Uses
The table below summarizes our key end use applications and products, as well as the significant growth drivers in those applications.
Sales and Zeolyst JV Total Sales(1)
Key End Uses202020192018Significant Growth DriversKey PQ Products
Fuels & Emission Controls26%28%25%• Global regulatory requirements to:• Refinery catalysts
• Remove nitrogen oxides from emissions• Emission control catalysts
• Remove sulfur from diesel and gasoline• Catalyst recycling services
• Increase gasoline octane in order to improve fuel efficiency while lowering vapor pressure to regulated levels
• Improve lubricant characteristics to improve fuel efficiencies
Consumer Products19%19%20%• Substitution of silicate materials for less environmentally friendly chemical additives in detergent and cleaning end uses• Silica gels for edible oil and beer clarification
• Demand for improved quality and shelf life of beverages• Precipitated silicas and zeolites for the surface coating, dentifrice, and dishwasher and laundry detergent applications
• Demand for improved oral hygiene and appearance
Packaging & Engineered Plastics17%17%17%• Demand for increased process efficiency and reduction of by-products in production chemicals• Catalysts for high-density polyethlene and chemicals syntheses
• Demand for high-density polyethlene lightweighting of automotive components• Antiblocks for film packaging
• Silicate for catalyst manufacturing
Industrial & Process Chemicals28%27%28%• Demand in the tire industry for reduced rolling resistance• Silicate precursors for the tire industry
• Usage of silicate in municipal water treatment to inhibit corrosion in aging pipelines
Natural Resources10%9%10%• More environmentally friendly drilling fluids for oil and gas production• Silicates for drilling muds
• Recovery in global oil drilling/U.S. copper production• Sulfuric acid for mining
• Growing demand for lighter weight cements in oil and natural gas wells• Silicates and alum for water treatment mining
• Bleaching aids for paper
Key End UsesSignificant Growth DriversKey Products
Clean Fuels, Emission Control & Other• Global regulatory requirements to:• Refining hydrocracking catalysts
• Reduce sulfur from diesel and gasoline• Emission control catalyst supports
• Remove nitrogen oxides from tailpipe emissions• Catalyst supports used in the production of sustainable fuels such as renewable diesel
• Growing demand for sustainable fuels• Catalyst used in the production of sustainable aviation fuels
• Growing demand for ex-situ catalyst activation to support traditional and sustainability fuels production• Catalyst activation
• Improve lubricant characteristics to improve fuel efficiencies• Aluminum sulfate solution
• Municipal and industrial water treatment• Ammonium bisulfite solution
Polyethylene, Polymers & Engineered Plastics• Demand for high-density polyethylene used for strengthening and light weighting components• Catalysts for high-density polyethylene and chemicals syntheses
• Demand for durable packaging• Antiblock for film packaging
• Growing demand for recycling of materials• Catalyst for advanced recycling
Regeneration and Treatment Services• Increase gasoline octane in order to improve fuel efficiency while lowering vapor pressure and sulfur to regulated levels• Sulfuric acid regeneration services
• High industry utilization• Treatment services
• Growing demand for applications in hazardous and non-hazardous waste
Industrial, Mining & Automotive• Demand for metals and minerals for low carbon technologies and infrastructure• Sulfuric acid for mining
• Demand for a wide range of products including construction materials, auto, consumer goods, and chemicals• Sulfur derivatives for industrial production
• Recovery in global oil drilling/U.S. copper production• Sulfur derivatives for nylon production



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December 31, 2023December 31, 2022December 31, 2021
Key End UsesSales% of Sales
Zeolyst JV Sales(1)
% of Zeolyst JV sales(2)
Sales% of Sales
Zeolyst JV Sales(1)
% of Zeolyst JV sales(2)
Sales% of Sales
Zeolyst JV Sales(1)
% of Zeolyst JV sales(2)
Clean Fuels, Emission Control & Other
Ecovyst$29.9 4.0 %$— — %$29.0 4.0 %$— — %$25.7 4.0 %$— — %
Zeolyst Catalyst— — %127.0 81.0 %— — %103.4 78.0 %— — %113.8 87.0 %
Polyethylene, Polymers & Engineered Plastics
Ecovyst$106.2 15.0 %$— — %$117.7 14.0 %$— — %$110.7 18.0 %$— — %
Zeolyst Catalyst— — %29.5 19.0 %— — %29.2 22.0 %— — %17.5 13.0 %
Regeneration and Treatment Services
Ecovyst$354.6 52.0 %$— — %$342.6 42.0 %$— — %$262.0 43.0 %$— — %
Zeolyst Catalyst— — %— — %— — %— — %— — %— — %
Industrial, Mining & Automotive
Ecovyst$200.4 29.0 %$— — %$330.9 40.0 %$— — %$212.8 35.0 %$— — %
Zeolyst Catalyst— — %— — %— — %— — %— — %— — %
Total$691.1 $156.5 $820.2 $132.6 $611.2 $131.3 

(1)     Percentage calculations include $128.6 million, $170.3 million and $156.7 millionRepresents 50% of total sales attributable to the Zeolyst JV, which represents 50% of its totalJoint Venture (the “Zeolyst Joint Venture” or “Zeolyst JV”) sales for each of the years ended December 31, 2020, 20192023, 2022, and 2018,2021, respectively. The Zeolyst JV sales are included in both the Fuels & Emission Controls and Packaging & Engineered Plastics key end uses. Refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Basis of Presentation” for a description of the treatment of the Zeolyst Joint VentureJV in our consolidated financial information.

(2)     Percentage calculations are based on $156.5 million, $132.6 million and $131.3 million of sales attributable to the Zeolyst Joint Venture, which represents 50% of its total sales for each of the years ended December 31, 2023, 2022 and 2021, respectively.
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Competitive Business Strengths
Favorable Secular Growth Trends Across the Portfolio
We focus on serving end use applications where we believe our competencies can create value adding solutions and where significant future growth potential exists. Our products and services address our customers’ needs, which are typically driven eitherglobally by regulatory requirements, or consumer preferences on a global basis. In 2020, a majority of our sales were to end uses such as fuels and emission controls, consumer products and industrial applications that generally do not exhibit as much cyclicality as other applications.or sustainability trends. We believe that our products and services incorporate innovative environmental, sustainability and safety solutions to address evolving customer demands, examples of which include the following:
Increased use of polyethylene-based plastics as a substitute for heavier and less versatile materials such as glass and metal,increasing consumption of plastics is driving increased global demand for polyethylene production and also capacity expansions and production.expansions. Further, we are seeing expansionsa shift towards silica-based technology, which we believe will drive growth for our Silica CatalystsAdvanced Silicas product group within our Advanced Materials & Catalysts segment.
Acceleration of global commitments to increase the recycling of plastics. Within our Zeolyst Joint Venture, our zeolite-based catalysts help improve the efficiency of thermal pyrolysis. We are partnering with technology licensors to help enable the advanced recycling of plastics.
The decarbonization of heavy-duty trucking and aviation industries by using sustainability fuels. Our Zeolyst Joint Venture leverages our knowledge of lubricant dewaxing to develop products that efficiently dewax renewable diesel. Dewaxing is a process where longer chain hydrocarbons are broken down into chain lengths that remain liquid at colder temperatures allowing fuel flow in trucks during colder temperatures. Legislative drivers and financial incentives are leading to rapid capacity builds at our customers, driving demand for our products. For the production of sustainable aviation fuel, our specialty zeolites are used in the hydrocracking and dewaxing steps, enabling the fuel quality required for sustainable aviation fuel to be produced. In addition, some manufacturing processes involve converting alcohol into jet fuel where our zeolites catalyze the building or oligomerization of molecules into longer chains that more efficiently combust to generate power.
Light- and heavy-duty diesel engines are subject to a broad set of regulatory requirements and are subject to increasingly strict emission standards. We believe these trends present global opportunities for the Zeolyst Joint Venture to support our customers in meeting these standards through our sales of emission control catalysts. While the US Environmental Protection Agency and European Union have ledLegislative efforts continue to reduce acceptable emission profiles, including a focus on cold start conditions, which we believe create positive opportunities for zeolite-based technologies along with other nations in terms of standardssolutions that limit the amount of nitrogen oxides, carbon dioxide and other emissions for diesel engines, other emerging regions are implementing similar standards, specifically China, with the China VI (equivalentcustomers benchmark to Euro VI) emission standard enacted in 2020.develop their preferred solution.
GivenWe believe that stringent fuel efficiency standards that are drivingspur the designuse of newhigh compression engines and the resultingrequiring higher-octane gasoline and continued stringent regulatory requirements that can be achieved throughfor gasoline will continue to encourage strong alkylate blending, weproduction at our refining customers. We believe that our Refining ServicesEcoservices segment is well positioned to benefit from any related growth in demand for alkylates.alkylate.
We also believe we have opportunities to displace other less environmentally friendly materials for industrial and consumer good applications through our business segments. Our Refining ServicesEcoservices segment is the largest North American recycler of sulfuric acid and one of the largest consumers of refinery by-products of sulfur, enabling them to be converted to other applications. In our Catalysts segment, we are helping our customers meet evolving regulatory requirements for the reduction of sulfur from diesel fuel and reduction of NOx emissions from diesel engines through our custom zeolites. Similarly, our specialty zeolites and silica supported catalysts are enabling our customers to improve fuel economy and utilize renewable resources through development of improved lubricants, lightweight polymers and renewable transportation fuel. Our Performance Chemicals products are manufactured from commonly found materials such as industrial sand and soda ash, which are more environmentally friendly than carbon-based products.
Leading Supply Positions
We believe that we maintain a leading supply position for certain products sold within each of our segments, holding what we estimate to be the number one or two supply share position in 20202023 for products that generated more than 90% of our sales. We believe that our global footprint and efficient network of strategically located manufacturing facilities provides us with a strong competitive advantage in serving our customers both globally and regionally, and that it would be costly for our competitors to replicate our network.

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In our Advanced Materials & Catalysts segment, we primarily compete on a global basis. We are a leading supplier of refinery hydrocrackingzeolites used for catalysts that support the production of sustainable fuels, zeolite-based catalyst finished and support catalysts used to remove sulfur in the refinery hydrocracking process and emission control catalysts used in the heavy- and light-duty diesel industries to reduce nitrogen oxides emissions. We are also a global supplier of silica catalystssilicas-based advanced materials and supports for polyethylene manufacturers and the exclusive supplier ofcustom catalyst applications, including catalyst used to produce methyl methacrylate (“MMA”) catalysts, bio-butadiene and bio-catalysis used in the patented Alpha process practiced by a global MMA leader.
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In our Refining Services segment, we hold an estimated number one supply share position in the United States in sulfuric acid regeneration based on 2020 sales volume of greater than 50%.
In our Performance Chemicals segment, we are a leading supplier in the United States, Europe and Latin America, and largely support customers with regional and local production due to costs of shipping. We estimate that we had at least two times the sodium silicate supply share of our nearest competitor based on 2020 sales volume.immobilize enzymes onto silica supports.
Innovation Track Record
AWe believe a key competitive advantage is derived from our depth of expertise in silicates,creating and modifying advanced materials based on silica zeolites and catalystszeolite technologies. Further,We believe we capture value through customer collaboration. We have the ability to tailor and scale specialty gradescustom advanced materials to meet changing demands and to provide technical support for large scale commercialization. Many of our products require close customer collaboration to address constantly evolving customer application challenges. Given the long lead-time required for product development and commercialization, which can be up to ten years, we work closely and build long-term relationships with our customers. In many cases, our relationships have spanned decades given our ability to meet customized specifications and performance characteristics while also maintaining strict quality standards.
These long-term relationships have allowed us to innovate together with our customers to meet evolving demands. For example, we have developed zeolite-based catalysts that are an effective and efficient method to reduceat reducing pollutants from heavy- and light-duty diesel engines, and enableenabling our customers to meet increasingly stringent vehicle emission standards worldwide. In personal care applications, weWe manufacture zeolite-based advanced materials used in the production of sustainable fuels to help advance the global transition to clean energy and to enable advanced recycling of plastics through the catalyzed thermal pyrolysis of plastic wastes. Our proprietary silica-based advanced materials have collaborated with leading consumer products companies over a number of years to develop a family of gentle silica-based dentifrice abrasives that produce more effective cleaning toothpastes. In addition, our proprietary silica catalyst has enabled development of a high strength high-density polyethylene (“HDPE”) resin that is used for making lightweight plastic gasoline tanks for automobiles.automobiles and enables everyday items such as plastic containers and piping used to construct new buildings. In addition, we participate in bio-catalysis where our advanced silica-based materials are used to immobilize enzymes and to enable CO2 capture and storage.
Long-Term, High-QualityHigh Quality Customer Relationships
We collaborate with leading multinational companies that often seek global solutions. Our customers include large industrial companies such as ExxonMobile, BASF, and Unilever,ExxonMobil, and global catalyst producers such as AlbemarleUOP and W.R. Grace. We also supply catalysts to leading chemical and petrochemical producers such as BASF, Dow Chemical, Lucite,Mitsubishi Chemical, LyondellBasell, CP Chemicals, Valero, Motiva, Saudi Aramco and Shell. We supply personal care ingredients and additives to leading consumer products companies such as Unilever and Colgate-Palmolive. We have long-term relationships with our top ten customers, based on 20202023 sales, that average more than 50 years. In addition, our customer base is diversified, with our top ten customers in 20202023 representing approximately 30%60% of our sales for the year ended December 31, 20202023, and noone customer representing more than 5%13% or $91.5 million of our sales in both our Ecoservices and Advanced Materials & Catalysts businesses during this period.
Secured Contractual Pass-through of Raw Material Costs Support Stable Margins
We have been able to mitigate the impact of raw material or energy price volatility using a variety of mechanisms, including hedging and raw material cost pass-through clausesmechanisms in our salessale contracts and other adjustment provisions. For the year ended December 31, 2020, approximately 30% of our Performance Chemicals sales (mostly comprised of sodium silicate sales) were derived from contracts that included raw material pass-through clauses. Most of our Refining ServicesEcoservices contracts feature minimum volume protection and/or quarterly price adjustments for items such as commodity inputs, labor, the Chemical Engineering Plant Cost Index and natural gas. In 2020,2023, approximately 80% of our Refining ServicesEcoservices segment sales were sold under contracts that included some form of raw material pass-through clause. These price adjustments generally reflect our Refining ServicesEcoservices actual cost structure in producing sulfuric acid, and tend to provide us with some protection against volatility in labor, fixed costs and raw material pricing. Freight expenses are generally passed through directly to customers.
Our products are predominantly inorganic and carbon-free, and are produced from readily available raw materials such as industrial sand and soda ash, which prices have historically been less volatile than oil.materials. We also use natural gas in our furnacesmanufacturing process where our North American facilities have benefited from the plentiful supplies of shale gas. In addition, we have long-term supply contracts and relationships with many of our key raw materialsmaterial suppliers across all of our business segments.
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Long TermLong-Term Customer Contracts Enhance Sales Predictability and Stability
We partner with many of our customers under long-term contract agreements, mutually exclusive product supply100% requirement arrangements and/or specified products for certain license production processes. In our Refining ServicesEcoservices segment, approximately 50% of our production capacity servesserve customers with staggered five to ten year “take or pay”multi-year commitment contracts with potential for value pricing resets and cost pass-through for our regeneration services product line that enhances sales and margin predictability and stability. Excluding contracts with automatic evergreen provisions, approximately 40%20% of our sulfuric acid volume for the year ended December 31, 20202023 was under contracts expiring at the end of 20212024 or beyond.
In our Advanced Materials & Catalysts segment, we are either the sole or dual supplier to key global customers under various term agreements up to 10 years for each of polyolefinpolyethylene catalysts and silica catalystsadvanced silicas supports. Further, we are an exclusivehave a multi-year supplier ofsupply agreement for MMA catalyst towith a leading global producer. In our Zeolyst Joint Venture, where we supply catalysts and zeolite catalysts product group,powders for refining, sustainable fuels, and emission controls applications, we operate with a mix of evergreen and various term contracts depending on the product customization with value pricing ranging from 1 to 3 years to supply catalysts and zeolite powders for the refining, petrochemical and chemical industries and nitrogen oxides control catalysts for diesel transportation industries.customization. These terms, in line with industry standards, provide us with flexibility in satisfying customers. Our Performance Chemicals segment operates under key customer supply contracts with material cost pass-through ranging from 1 to 5 years, largely depending on terms for customer demand given regional and/or product solution needs.
Strategic and Differentiated Manufacturing Know-how and Supply Chain Global Network
Ecoservices’ predecessor company, Stauffer Chemical, was a leader in pioneering the current sulfuric acid regeneration technology in the 1940s. Since then, we have leveraged our process technology expertise and ability to deliver our products by barge, rail, truck and pipeline to become the largest sulfuric acid regenerator in North America and a leading North American producer of high quality virgin sulfuric acid. Ecoservices has also applied its expert knowledge in thermal decomposition to provide treatment services for hazardous/non-hazardous wastes, and most recently activate catalysts with our patented Chem 32, LLC (“Chem32”) technology acquired in March 2021.
Our Advanced Materials & Catalysts product development and manufacturing platformtechnology is customized based on furnace technologydeep silica and proprietary knowledge developed from almost two centuries of combined experience applying silicates chemistry production and the development of applications across a broadening set of end uses. All of our segments produce materials through our furnace process, other than our silicazeolite-based advanced material science know-how. Our R&D centers seek to develop fit for purpose catalysts and zeolite catalysts product groups, which are derivatives of our Performance Chemicals segment.with customers. We believe we have a differentiated capability around furnace operations that enables us to operate more efficiently than most of our competitors.develop such products and manufacture them consistently.
Stable Margins and Cash Flow Generation Across Changing Macroeconomic Cycles
We have demonstrated the abilityThe secular trends supporting many of our business segments has allowed us to maintain stable margins while continuing to grow in different macroeconomic environments given secular trends supporting many of our business segments.environments. We believe that the stability of our margins and cash flows is also aided by long term saleslong-term sale contracts and material cost pass-through. Our ability to enter into favorable contracts and terms with customers is driven by our long history of collaborative relationships and track record of providing value-added products and services. We believe that our value-added products and services have proven to be critical to the performance of our customers’ products and typically represent only a small portion of our customers’ overall end-product costs.
OurWe believe our strong commercial contact structure enables our businesses to generate strong operating cash flow. In addition, our cash flow generation has been driven, in part, by lower debt levels, our disciplined capital investment, as well as tax attributes that provide us with cash flow benefits. As of December 31, 2020,2023, we had $263.7$206.9 million of tax deductible intangibles and goodwill with respect to Eco Services Operations LLC, of which provides us with cash tax savings as we generate taxable income.

Our Business Segments
We are ana leading integrated and innovative global provider of advanced materials, specialty catalysts chemicalsand services. We believe that our products and services that share common end uses, manufacturing techniques, and process technology.contribute to improving the sustainability of the environment. We conduct operations through threetwo reporting segments: (1) Refining Services,Ecoservices and (2) Advanced Materials & Catalysts (including our 50% interest in the Zeolyst Joint Venture) and (3) Performance Chemicals. Effective October 15, 2020, our former Performance Materials segment was treated as a discontinued operation and was subsequently sold on December 14, 2020..
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The table below summarizes certain information regarding our threetwo reporting segments for the year ended December 31, 2020.2023.
Year ended December 31, 2020
Segments and Product GroupsSales% of Total Sales
Zeolyst Joint Venture Sales(1)
% of Total Sales and Zeolyst Joint Venture Sales(1)(2)
Net Income
Adjusted EBITDA(1)
% of Total Adjusted EBITDA(1)(3)
(in millions, except percentages)
Refining Services$401.9 36.3 %$— 32.5 %$157.2 42.0 %
Catalysts94.0 8.5 %— 7.6 %74.5 19.9 %
Zeolite Catalyst— — %128.6 10.4 %
Performance Chemicals614.7 55.5 %— 49.7 %142.4 38.1 %
Eliminations(3.2)(0.3)%— (0.3)%
Subtotal$1,107.4 100.0 %$128.6 100.0 %
Corporate(36.1)
Total$1,107.4 100.0 %$128.6 100.0 %$(278.8)$338.0 100.0 %

Year ended December 31, 2023
Segments and Product GroupsSales
Zeolyst
Joint Venture Sales(1)
Net Income
Adjusted EBITDA(1)
% of Total Adjusted EBITDA(1)(2)
(in millions, except percentages)
Ecoservices$584.8 $— $200.0 70.9 %
Advanced Materials & Catalysts106.3 — 81.9 29.1 %
Zeolite Catalyst— 156.5 
Subtotal$691.1 $156.5 
Corporate(22.0)
Total$691.1 $156.5 $71.2 $259.9 100.0 %

(1)     Percentage calculations include $128.6 millionRepresents 50% of total sales attributable to the Zeolyst JV, which represents 50% of its totalJoint Venture (the “Zeolyst Joint Venture” or “Zeolyst JV”) sales for the year ended December 31, 2020.2023. The Adjusted EBITDA of our Advanced Materials & Catalysts segment includes our 50% portion of the Adjusted EBITDA of our Zeolyst JV. Refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Basis of Presentation” for a description of the treatment of the Zeolyst Joint Venture in our consolidated financial information. Refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Performance Indicators” for discussion of our use of non-GAAP financial measures and reconciliations.
(2)     Percentage calculations exclude $3.2 million in intersegment sales eliminations.
(3)     Percentage calculations exclude $36.1$22.0 million in corporate expenses.

Refining ServicesEcoservices
Our Refining ServicesEcoservices segment is a leading provider of sulfuric acid recycling (Regeneration Services)(“Regeneration Services”) and end-to-end logistics to North American refineries forto support the production of alkylate, a high value gasoline blending component required for meeting gasoline specifications and producing premium grade fuel. We are also a leading North American producer of on-purpose virgin sulfuric acid for water treatment, mining, and industrial applications.applications (“Virgin Sulfuric Acid”). We provide treatment services for hazardous/non-hazardous industrial wastes (“Treatment Services”) and with the acquisition of Chem32 in March 2021, we are also a leader in ex-situ sulfiding and pre-activation for hydro-processing catalysts, which are used in the production of traditional and sustainable fuels. By providing regeneration services, as well as purchasing by-product sulfur from customers as a source of energy and for use in manufacturing virgin sulfuric acid, we believe that we provide our refining customers with a complete solution for their sulfuric acid needs.
TrendsWe believe recent trends for increased alkylate production are being driven by: rising demand for premium gasoline used in smaller, more efficient turbocharged engines, which requires higher octane rated gasoline with an alkylate content of approximately 35%40%-45%, as compared to the approximately 12%-13% alkylate content in regular gasoline; the need for more alkylate to meet the minimum octane ratings in regular gasoline following the continued significant share growth of shale oil refining in the U.S.; the full implementation of Tier 3 gasoline sulfur standards in the United States was enacted forin 2020, which requires the blending of additional low sulfur high octane gasoline components such as alkylate; and rising gasoline exports, which gasoline generally containcontains no ethanol and will generally requirerequires more alkylate to replace the missing ethanol in order to meet the minimum octane requirements forin the destination countries.
Our Refining ServicesEcoservices segment is highly regionalizedmostly regional due to shipping costs and our customer integration requirements. Our network of facilities is concentrated in the Gulf Coast and the state of California, where approximately 68%65% of the United States refining capacity is located. TheWe believe that the strategic locations of our plants in these key refining regions contribute to our highly efficient supply chain networks with our customers, including in some cases captive pipelines connecting us to our refinery customers. Alternatively,Additionally, product can be shipped to our customers by barge, rail and truck.
Our primary product groups include Regeneration Services and Virgin Sulfuric Acid.
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Primary Product Groups
Regeneration Services serves a critical need for refining customers. Sulfuric acid serves as a catalyst in the alkylation process. The resulting spent sulfuric acid needs to be regenerated or recycled, which is no longer a core competency of most refiners. Since storage space for fresh and spent sulfuric acid is typically limited, and the cost to refineries of interruption to their alkylation units would be significant, refineries seek to have a continuous and reliable source of supply for sulfuric acid.acid regeneration services.
Our end-to-end regeneration service offering takes the spent acid from the refinery, through our network of plants and transportation systems, and recycles the sulfuric acid into a high strength fresh sulfuric acid for reuse in the alkylation process. Because of the number and strategic locations of our plants, and the breadth of our transportation logistics, we believe we bring the highest reliability and flexibility to our refining customers, allowing them to focus on their core competency by optimizing their alkylation capacity.
Virgin sulfuric acidSulfuric Acid is created either through the burning ofincinerating sulfur in furnaces, or as a by-product of other industrial processes, primarily the smelting of copper and other base metals. We produce a range ofOur sulfur-derived, high quality virgin sulfuric acid products by burning sulfur in our plants for supply into a diverse set of end uses. Sulfur-burnedSulfur derived acid is generally considered to be of higher purity and quality than smelter-produced acid and, as a result, smelter-produced acid is not suitable for some industrial users including several of our larger customers who require higher quality and differentiated sulfuric acid products, such as super-saturated sulfuric acid (oleum) and other high purity specialty acids.. Virgin sulfuric acidSulfuric Acid is produced at all of our facilities utilizing the same production equipment as our regeneration services.
Our Treatment Services business is a niche offering providing a thermal destruction solution for the management of bulk quantities of hazardous and non-hazardous by-products, co-products and waste materials. We specialize in handling sulfur-bearing materials, acidic materials, high-temperature molten materials and other hard to handle liquids. Our process provides a beneficial reuse alternative to traditional disposal by capturing the energy value and sulfur content of these materials, supplementing our processes, and offsetting the use of virgin raw materials.
Competition
Given our strategic presence on the Gulf Coast and in California, and our relationships with leading refineries, we estimate that our regenerated sulfuric acid supply share is substantially larger than our closest competitor. We compete in the North American refining services industry with competitors such as Chemtrade and Veolia. We compete on the basis of price, reliability, and responsiveness to changes in customer demand, which is a function of scale, proximity to customer locations and operational expertise. We believe that we benefit from industry economics that favor incumbent producers because the capital cost and regulatory challenges to expand existing capacity are typically significantly less than to build a new plant. In addition, existing robust supply chains, including captive pipeline connections and other transportation logistics add to the competitive advantages available to incumbent producers. As a result, we believe that our integrated and strategically located network of facilities and end-to-end logistics assets in the United States provide us with a significant competitive advantage and would be costly for our competitors to replicate.

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Manufacturing
We produce regenerated sulfuric acid and virgin sulfuric acid through our furnace operations. Regenerated sulfuric acid is produced by thermally decomposing the spent acid in our furnace into a clean gas stream, which is converted into sulfuric acid. Virgin sulfuric acid is produced by burning sulfur and certain sulfur-rich components at high temperatures within a furnace.furnace to create a gas stream. The chart below summarizes the manufacturing platform for our Refining ServicesEcoservices segment.
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Refining ServicesEcoservices Manufacturing Platform

rsmanufacturingplatforma01.jpg

Advanced Materials & Catalysts
We are a leading global provider of customizedadvanced materials and innovativespecialty catalyst products and process solutions to leading producers and licensors of polyethylene, or PE, and methyl methacrylate, or MMA. Our finished silica-based catalysts and catalyst supports are necessary to produce high strength and high stiffness plastics used in packaging films, bottles, containers, and other molded applications. Global consumer demand for high strength lightweight plastics is expected to continue in the near to medium term driving increased production capacity expansions. Our zeolite-based emission control catalysts enable the removal of nitrogen oxides from diesel engine emissions as well as sulfur dioxide from fuels during the refining process. The continued expansion of stricter global regulations for reducing sulfur in all fuel pools is expected to drive the ongoing demand for our products.
polyethylene. Our product groups include Silica CatalystsAdvanced Silicas and Zeolite Catalysts. Zeolite Catalyst products are sold through the Zeolyst Joint Venture.
Silica CatalystsAdvanced Silicas supplies both the finished catalyst and catalyst supports which are critical catalyst components for the production of HDPE and linear low density polyethylene (“LLDPE”). HDPE is a high strength and high stiffness plastic used in bottles, containers, and molded applications, andwhereas LLDPE is used predominately for films. We also produce a catalyst that is used globally for the production of MMA, the monomer for acrylic engineering resins, a clear scratch-resistant plastic used in sheet or molded form to replace glass and as a durable surface coating.coating and produce a catalyst used for the manufacture of bio-butadiene. Because these catalysts are highly technical and customized for our customers to produce resinsmanufacture products with specific properties, they are often covered under long-term supply agreements and, in some cases, we are a customer’s sole source supplier. In addition, we producesupply silica anti-blocking products that are used to prevent opposite faces of polyolefinpolyethylene and polyester films from adhering to one another during manufacturing and in use. We also develop and supply functionalized silicas that are typically used in applications requiring high adsorption properties, including CO2 capture and storage, water clean up and metals removal from waste.
The Zeolyst Joint Venture, (formed in 1988 specifically as Zeolyst International and Zeolyst C.V., our 50% owned joint venture with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell”), supplies critical high technology specialty zeolitezeolites and zeolite-based catalysts to customers in three end uses:for refining (primarilyof oil primarily hydrocracking catalyst and dewaxing), petrochemicals,dewaxing, sustainable fuels and emission control systems for both on-road and non-road diesel engines. We also supply custom zeolites to catalyst companies who compete in similar industries. The Zeolyst Joint Venture leverages each partner’s technology and production expertise, including Shell’s expertise in hydrocracking catalyst to maximize liquid product yields, especially distillate, while at the same time removing sulfur, and PQ’sEcovyst’s expertise in zeolite technology. We also believe the Zeolyst Joint Venture is a first mover in zeoliteresearch and development, production technology, and market understanding for applications including sustainable fuels, and emissionsemission control technology, advanced recycling and we expect continued expansion as environmental emissions standards increase globally.

many customized zeolite catalyst solutions.
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To meet sulfur emission control standards, hydrocrackingHydrocracking catalyst is the most economic method to meet sulfur emission control standards for refiners while maintaining yields for diesel, which is considered one of the most profitable product streams. The Zeolyst Joint Venture is the sole supplier of hydrocracking catalyst to Shell but afor their own catalyst consumption, however, the majority of sales are to third-party refineries.refining customers. We also provide precursorzeolite supports to many of the hydrocracking catalyst suppliers, positioning us as a leading supplier in the global hydrocracking catalyst supplyvalue chain.
To meet nitrogen oxides (NOx) emission control regulations that are expanding globally, many of our zeolite powders are used in an advanced emission control technology called selective catalytic reduction, largely focused on heavy dutyheavy-duty diesel (HDD) transportation. This process uses ammonia to react with engine exhaust gases via our catalysts in order to convert NOx,nitrogen oxides, a pollutant, into harmless nitrogen and water. We believe that our zeolite catalysts can enable selective catalytic reduction technology to reduce the amount of nitrogen oxides in such exhaust gases by more than 90% and is one of the most cost-effective methods to reduce diesel engine emissions.
Competition
Our Silicia CatalystsAdvanced Silicas product group primarily competes with W.R. Grace.Grace with the catalyst components used for the production of polyethylene. The Zeolyst Joint Venture competes with global catalyst producers such as W.R Grace, BASF, UOP, Axens, and Haldor Topsoe, while at the same time providing many of them customized zeolite solutions for their product offerings. Some direct competition with niche companies exists, including competitors such as Tosoh and Clariant. We typically compete on the basis of performance, product consistency, reliability and responsiveness to changes in customer demand.
Manufacturing
We manufacture our catalyst products using sodium silicate liquids purchased directly from our Performance Chemicals segment or silica sol liquids made by others from Performance Chemicals sodium silicate to make specialty zeolite and silica products. These zeolites and silicas are either used directly to produce catalysts or are sold as precursors to other catalyst manufacturers.
    The chart below summarizes the manufacturing platform for our Advanced Materials & Catalysts segment.

Silica CatalystsAdvanced Silicas Manufacturing Platform

pqg-20201231_g3.jpgAdvanced Silicas Mfg Platform.jpg



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Zeolyst Joint Venture Manufacturing Platform

pqg-20201231_g4.jpgZeolyst JV Mfg Platform.jpg

Performance Chemicals
Our Performance Chemicals segment is a leading global producer of sodium silicates, and downstream specialty silicas as well as other silicate derivative products. These products are used in a wide variety of industrial and consumer applications such as matting agents in surface coatings, clarifying agents for edible oils and beverages, precursors for green tires, additives for dental cleaning and personal care products, and as feedstock for our additives and catalyst platforms. Given our products are derived from quartz sand, which makes them natural and inert materials, we believe they have the environmental and safety profile to address evolving customer demands to replace certain other chemicals. Silicates and silicate derivatives are recognized on the Safer Chemicals Ingredients List of the EPA’s Safer Choice program, which we believe positively impacts our ability to compete in consumer product applications.
Given the breadth of our global infrastructure in terms of scale operations, geographic diversity and production know-how, we are a leading global supplier to key multi-national industrial and consumer product companies. While we are global, our network is highly regionalized in silicate products and strategically located to support customers in a cost effective manner because of the expense of shipping sodium silicates extended distances due to their water content. We believe that we are the only global silicates producer who can supply all of the major regions, excluding China, and we estimate that we hold at least two times the sodium silicates supply share as our nearest competitor based on 2020 sales volume.
Our product groups include Sodium Silicates, Specialty Silicas and Other Silicate Derivatives.
Sodium Silicates have functional attributes that are used as additives and ingredients to enhance product performance as binders, detergent-builders, pH buffers, adhesives or as chemical feedstock and are in extensive diverse customer applications for construction, cleaning, water treatment, pulp & paper, foundry & refractory, green tires, electronics and refining catalysts.

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Specialty Silicas are used as ingredients in consumer products such as personal care products, food, edible oils and beer where customers are seeking more environmentally friendly products without loss of effectiveness or performance. In industrial, uses include gloss control and corrosion control in coil, wood, general industrial leather, and other high-performance surface coating applications.
Other Silicate Derivatives include metasilicates, spray dried silicates, and magnesium silicates and potassium silicates which supply diverse uses in cleaning, specialty fertilizer, oil & gas, mining, paints, food, and cosmetics. We also produce zeolites, by reaction with aluminum trihydrate, which are used as builders in detergents and in other applications as stabilizers in the production of polyvinylchloride (PVC) applications.
Competition
In our Performance Chemicals segment, we primarily compete with other global producers such as OxyChem, Grace and Evonik. We believe that we have a leading industry position and technical expertise that provides us with a competitive advantage over competitors who manufacture only in particular end uses. Further, we believe that it would be costly and difficult for a new entrant or existing competitor to replicate our breadth or economies of scale in the production of sodium silicate.
We believe that our network of strategically located manufacturing facilities, with operations in North America, Europe, South America and Africa, allows us to serve our customers at a lower cost than our competitors and with quicker delivery times for our products. In the industry, we compete primarily on the basis of performance, product consistency, quality, reliability, and ability to innovate in response to customer demands.
Manufacturing
Performance Chemicals’ products are produced through an integrated supply chain beginning with regional and large scale upstream production of sodium silicates and downstream derivatives. Sodium silicates are produced regionally because of the expense of shipping sodium silicates extended distances due to their water content. Our sodium silicates are produced by fusing readily available industrial sand and soda ash in our proprietary furnace operations. We dissolve the molten silicate from the furnace into water and sell these products in liquid form. Downstream derivatives are produced through a variety of chemical operations that create aqueous, solid, and gel forms for our products.
For the year ended December 31, 2020, approximately 50% of our North American silicate sales, which represented a significant portion of our Performance Chemicals segment sales, were derived from contracts that included raw material cost pass-through clauses. Under these contracts, there is usually a time lag of between three and nine months for cost changes to pass-through, depending on the magnitude of the change, industry dynamics and the terms of the particular contract.
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The chart below summarizes the manufacturing platform for our Performance Chemicals segment.

Performance Chemicals Manufacturing Platform
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Raw Materials
We estimate that our raw material costs represent approximately 40% of total cost of goods sold in the year ended December 31, 2020. Our products are predominantly inorganic and carbon-free, and are produced from readily available raw materials such as industrial sandsodium silicate and soda ash, which prices have historically been less volatile than oil.sodium hydroxide (“caustic soda”). We also use natural gas and electricity in our furnaces,manufacturing process, with our North American facilities benefiting from the plentiful supplies of shale gas. In addition, we have long-term supply contractsrelationships with many of our key raw materials suppliers across our segments.suppliers. We have also been ableaim to mitigate the impact of raw material or energy price volatility using a variety of mechanisms, including hedging and raw material cost pass-through clauses in our salessale contracts and other adjustment provisions.
We are able to negotiate our supply agreements for our key raw materials based on our leading industry position and global scale in an effort to achieve competitive pricing. We also maintain a raw material quality audit and qualification program designed to ensure that the material we purchase satisfies stringent quality requirements. Key raw materials for our segments include:
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Key Raw MaterialsSegments
Soda AshRefining Services, Performance Chemicals
Sodium hydroxide ("(“caustic soda"soda”)Refining Services, Performance ChemicalsEcoservices
SulfurRefining ServicesEcoservices
Industrial sandSodium silicatePerformance Chemicals
Aluminum trihydrateRefining Services, Performance ChemicalsAdvanced Materials & Catalysts

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While natural gas is not a direct feedstock for any individual product, we use natural gas powered furnaces to heat raw materials and create the chemical reactions necessary to manufacture our products. We maintain multiple suppliers wherever possible and we seek to hedgeforward purchase to stabilize our exposure to fluctuations in prices for natural gas, forward purchases of natural gas in the United States, Canada, and Europe, and the use ofgas. Where possible, we also utilize pass-through clauses for raw material and natural gas costs in our customer contracts. However, we may not be successful in passing through all increases in raw material costs or maintaining an uninterrupted supply of natural gas for all of our furnaces. See “Risk Factors-RisksFactors—Risks Related to Our Business - If we are unable to pass on increases in raw material prices, including natural gas, to our customers or to retain or replace our key suppliers, our results of operations and cash flows may be negatively affected”.
Zeolyst Joint Venture
The Zeolyst Joint Venture is a long-standing partnership with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell”, that dates back to 1988 and is focused on the development, manufacture and sale of zeolite-containing catalysts through manufacturing facilities located in Kansas, USA and the Netherlands. We combine our expertise in zeolite supply and technology with our partner’s expertise in global refinery catalyst sales and technology. We have a 50% ownership stake in the Zeolyst Joint Venture. We produce zeolites that are precursors for the production of hydrocracking catalyst and sustainable fuels catalysts. Our extensive expertise in zeolite production enables us to manage the production of specialty zeolites which includes custom catalyst solutions, aromatic, mainly Xylene focused catalysts. dewaxing catalysts that improve lube oil performance, and paraffin isomerization catalysts that upgrade olefins to high octane gasoline blending components for refinery and petrochemical customers. In addition, our products include zeolite-based catalysts that enable catalytic based thermal pyrolysis of plastics wastes and adsorbents that enable the selective purification of waste streams.
Research and Development
We benefit from the highly-skilled technical capabilities of our employees who are dedicated to new product development. We operate two research and development facilities: one in the United States and one in the United Kingdom. Our research and development activities are directed toward the development of new and improved products, processes, systems and applications for customers. Our research and development team is organized to support each of our operating businesses and staffed with experienced scientists, technical service representatives and process engineers with direct knowledge of our products. This business group and customer-oriented team structure provides strong links between our product development and manufacturing functions and our customer collaboration and specifications. These connections enable us to focus our development on timely and relevant products for our customers while remaining attentive to manufacturing considerations that enable us to produce new products profitably and in a timely manner. Product development activities are organized into research and development projects that are subject to regular reviews by the business teams in order to understand and address our customers’ evolving needs and invest in our growth by prioritizing innovation driven by these identified needs. In addition, we hold senior-level project reviews to ensure best practices are shared and consistent metrics are used to determine a project’s merit and the size of the potential opportunity.
Intellectual Property
We evaluate how best to use patents, trademarks, copyrights, trade secrets and other available intellectual property protections on a case-by-case base. This is done to protect our products and our critical investments in research and development, manufacturing and marketing. We focus on securing and maintaining patents for certain inventions such as composition-of-matter, while maintaining other inventions such as process improvements as trade secrets to maximize the value of our product portfolio and reinforce our competitive advantage. Our policy is to seek appropriate intellectual property protection for significant product and process developments in the major areas where the relevant products are manufactured or sold. Patents may cover products, processes, intermediate products and product uses. Patents extend for varying periods in accordance with the date of patent application filing and the legal life of patents in the various countries in which the patents are registered. The protection afforded, which may also vary from country to country, depends upon the type of subject matter covered by the patent and the scope of the claims of the patent.

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In most industrial countries, patent protection may be available for new substances and formulations, as well as for unique applications and production processes. However, given the geographical scope of our business and our continued growth strategy, there are regions of the world in which we do business or may do business in the future where intellectual property protection may be limited and difficult to enforce. Moreover, we monitor our competitors’ products and, if circumstances were to dictate that we do so, we would vigorously challenge the actions of others that conflict with our patents, trademarks and other intellectual property rights. We maintain appropriate information security policies and procedures reasonably designed to ensure the safeguarding of confidential information including, where appropriate, data encryption, access controls and employee awareness training.
We own or have rights to a number of patents relating to our products and processes. As of December 31, 2023, we owned 21 patented inventions in the United States, with 175 patents issued in countries around the world and 61 patent applications pending worldwide. As of December 31, 2023, we also had 61 trademark registrations worldwide, including 5 U.S. trademark registrations. We also have 20 pending trademark applications, which include applications in the United States and worldwide. In addition to our registered and applied-for intellectual property portfolio, we also claim ownership of certain trade secrets and proprietary know-how developed by and used in our business. Including our Zeolyst Joint Venture, we are party to certain arrangements whereby we license in the right to use certain intellectual property rights in connection with our business.
Seasonality
Our regeneration services product group, which is a part of our Ecoservices segment, typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer and lower demand in the winter months. These demand fluctuations results in higher sales and working capital requirements in the second and third quarters.
Sustainability Overview
Sustainability is intertwined with our daily business and is reinforced through our strategy and values. We strive to create sustainable products that are safe for the environment, and to reduce waste and increase efficiencies for our customers and stakeholders. We believe that our products contribute to lower emissions and cleaner air, advance the global transition to clean energy, support the circular plastics economy and ensure clean, purified drinking water. We are committed to creating environmentally responsible products that we believe make a difference in people’s daily lives and for our planet.
While offering products and services that help our customers to advance their own sustainability goals, we also work to advance our commitment to maintain sound environmental, social and governance (“ESG”) practices, policies and procedures. For example, we:
Were awarded a 2024 Platinum Sustainability Score from EcoVadis, a third-party sustainability evaluation company. The Platinum Medal rating from EcoVadis places us among the top 1% (99th percentile) of all companies assessed by EcoVadis over the past twelve months;
Maintained an executive level position of Vice President – Environment and Sustainability that reports directly to our CEO;
Under the leadership of our Global Director of Health, Safety and Process Safety Management, instituted additional health, safety and process safety programs, as well as launched a company-wide employee health and wellness program that covers both physical and mental health;
Provided enhanced sustainability information on our website and published our 2022 Sustainability Report, our second as Ecovyst, in July 2023;
Continued work towards our recently announced series of 2025 and 2030 sustainability goals with respect to fuel usage, power usage, healthy, safety and environment performance, and community engagement;
Introduced our employees to our core values Stewardship, High Standards, Integrity and Engagement (“SHINE”) and in 2023, provided training on these values and provisions of our Code of Conduct, completing training for approximately 99.8% of active employees in 2023;
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Continued steps to implement additional improvements in a number of areas, including health, safety and environmental (“HSE”) performance; commitment to diversity, inclusion and human rights both within our company and in our supply chain; and ethical and lawful business practices;
Further integrated a corporate-wide sustainability software platform, which we are utilizing as an internal, real-time sustainability performance dashboard to enable improved analytics and greater visibility into our sustainability impacts; and
Achieved a greater than 90% performance in our flagship HSE Perfect Days program, which targets at-risk behaviors and celebrates positive HSE performance across the organization on a daily basis.
The sections that follow provide some highlights of our environmental, social, and governance programs and procedures.
Environmental Stewardship
Our products and technologies continue to address our customers’ sustainability challenges, tightening global regulatory standards and changing consumer preferences. In our Ecoservices segment, we provide sulfuric acid regeneration services that avoid significant landfill or deep well disposal of spent, or used, sulfuric acid. In our Advanced Materials & Catalysts segment, our zeolite catalysts are used for cleaner air applications and our advanced silicas are key for light weighting and plastics recycling.
As part of our sustainability commitment regarding our own operations, we apply the principles of the Environmental Management standard of the International Organization for Standardization (ISO 14001) at our facilities throughout the world. For chemical facilities in the United States, we also adhere to the Responsible Care® RC14001 Technical Specifications of the American Chemistry Council (“ACC”).
We maintain policies and procedures to monitor and control HSE risks, and to enable compliance with applicable state, national, and international HSE requirements. We have comprehensive HSE compliance, auditing and management programs in place to assist in our compliance with applicable regulatory requirements and with internal policies and procedures, as appropriate. Each Ecovyst facility has developed and implemented specific critical occupational health, safety, environmental, security and loss control programs.
We also have a strong Health and Safety (“H&S”) and Environmental and Sustainability (“E&S”) organizations staffed by professionals who are responsible for health, safety, process safety, sustainability, product stewardship and product safety regulatory compliance. Our H&S and E&S organizational structures feature executive management-level leadership, active oversight by our Board and dedicated H&S and E&S experts on staff. We have a Global Director of Health, Safety and Process Safety Management and also have Regional H&S Specialists and Managers who are embedded in the field and provide H&S expertise and support to operating sites. In addition, our Vice President Environmental and Sustainability oversees a team of environmental personnel that serve our operating sites.
As an ACC Responsible Care® member company, we continue to monitor and report our HSE metrics annually. Our sustainability metrics, including waste generation and water consumption for 2018 through 2022, were third party assured through verification of the data. We included the assured data on our website and in our 2022 Sustainability Report, which we published in July 2023.
We also have established a Product Safety and Product Stewardship management system that is compliant with the RC14001 technical specification and is supported by a highly skilled Director of Product Stewardship. We conduct Product Stewardship reviews as part of new product development and routinely evaluate product safety risk for raw materials, intermediates, and finished products.

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Social Responsibility, including human capital discussions
We seek to act in a socially responsible manner through our various HSE programs as described above, our commitment to building a diverse and inclusive workforce, engagement with and support for the communities where we live and work, and advancement of socially responsible business practices through partnerships and other industry frameworks.
We are committed to providing equal employment opportunities for all employees and applicants for employment, and do not discriminate on the basis of race, color, religion, sex, sexual orientation, pregnancy, gender identity and expression, national origin, disability, age (40 or above), ancestry, genetic information, marital status, veteran status or any other classification protected by law. This commitment applies to all terms and conditions of employment, including recruiting, hiring, placement, advancement, training, transfer, demotion, lay off and recall, termination, compensation and benefits.
It is our policy to comply with all applicable laws and regulations in each jurisdiction in which we operate in order to provide appropriate working conditions for our colleagues. This means that we comply with applicable laws regarding the employment relationship including those that (1) prohibit child labor, (2) set acceptable working conditions and working hours, (3) provide for fair wages, including minimum wages and overtime, (4) prohibit forced or bonded labor, (5) permit freedom of association and collective bargaining, and (6) prohibit discrimination, harassment and other forms of degrading or inhumane treatment. Using tools such as our Supplier Code of Conduct and contractual provisions, we also hold our business partners to these same standards.
We further our people by acknowledging our workforce is key to our success. We offer highly competitive salaries, benefits, developmental opportunities and work/life balance. We proactively seek to attract, incentivize and retain a talented and motivated workforce. Our global succession planning process is designed to provide sufficient talented personnel to fill key leadership, innovation and manufacturing roles well into the future and to better prepare employees for their future at the Company. In order to enable a pipeline for our leadership, we maintain a robust Emerging Leaders program to identify and nurture top talent to build leadership capabilities and provide the fundamental skills we believe every leader needs to generate passion and productivity in their team. The program also provides an important networking opportunity that creates a connected community of leaders at the Company.
We review our compensation and benefits programs periodically to ensure continued competitiveness. In the United States, our benefit programs are designed to help protect the health and financial well-being of our full-time employees and their family members, offering a choice of several medical & dental plans, as well as vision, flexible spending accounts, short-term and long-term disability insurance and an employee assistance program.To help them prepare for their future, we offer a defined contribution savings plan, which includes company contributions. Benefits outside the United States are designed to supplement government-provided programs in each country.
We benefit from our talented, dedicated and diverse employee population and we actively promote diversity in an effort to maintain a workforce that reflects the diversity of the societies in which we operate. As of December 31, 2023, we had 911 employees worldwide, of which 784 were employed in the United States. Further, as of December 31, 2023, approximately 24% of our U.S.-based executives, managers and professionals were females and 21% were non-white males. As of December 31, 2023, approximately 44% of our employees were represented by a union, works council or other employee representative body. We believe we have good relationships with our employees and their respective works councils, unions or other bargaining representatives.
This international strength, supported by our core values of SHINE, fosters a rich culture founded on diversity of thought. We firmly believe that success is achieved through the intellect and commitment of our people, so we employ a long-term human capital program to attract, retain and develop talent for the future. We are proud of our highly collaborative teams that enable an inclusive workplace where employees are encouraged to bring their own experiences to promote innovation from all levels of the organization. This constructive work environment is supplemented with a fully integrated on-line performance management process that improves the communication of aligned goals, encourages consistent feedback and furthers employee engagement. Today, there are women on the leadership teams of each of our businesses as well as in our R&D, Finance, E&S and Human Resources functions.

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In 2023, our sites continued to work to have a positive impact in the communities in which we operate. Some of these events included: (a) our office in The Woodlands, Texas participated in a food drive sponsored by a non-profit organization to provide Thanksgiving meals to families as well as sponsor local AAU basketball teams; (b) our Houston, Texas plant supported a local elementary school by providing lunches for Teacher Appreciation day, provided bus services for children to take a field trip for the holidays, and donated jerseys to a soccer team; (c) our Hammond, Indiana plant supported a local school district back-to-school parade; (d) our Baytown, Texas plant donated benches to a local elementary school and wrote holiday cards for troops stationed abroad; (e) employees at our Baton Rouge, Louisiana facility collaborated with a non-profit organization to renovate the residences of elderly and disabled, low-income homeowners and adopted Angels through the Salvation Army for the holiday season; (f) our Martinez, California facility participated in several community awareness and emergency response task forces; (g) our Dominguez, California plant personnel donated $1,000 to a local Rotary Club to subsidize food items for local families and donated benches to a local school; (h) our West Orange, Texas plant donated to organizations whose mission is to train, educate, and empower young women; (i) our Kansas City, Kansas site participated in the “Adopt an Angel” program sponsored by a charitable organization where employees purchased and wrapped holiday gifts; (j) our Warrington, United Kingdom sponsored uniforms for a local youth soccer team; (k) our Delfzijl, The Netherlands site donated funds to a local food pantry; (l) our Conshohocken, Pennsylvania site participated in a food drive, donated toys for Toys for Tots and cleaned the surrounding neighborhood for Earth Day; and (m) our Malvern, Pennsylvania office personnel participated in a food drive sponsored by a local food pantry to provide Thanksgiving meals to families, as well as in the “Adopt a Child” program sponsored by a local church to provide holiday gifts for children whose families would not otherwise be able to afford gifts.
Governance
We maintain and consistently reinforce within our organization a series of policies and practices designed to ensure that decisions made on behalf of our company are properly made and executed. Our governance programs and policies start with a strong tone at the top and are summarized in our Executive Statement on Ethics and Compliance, which has been issued by our CEO and our Chief Compliance Officer and distributed throughout the organization.
The principles set forth in the Executive Statement are codified in our Code of Conduct, which sets forth the legal and ethical standards to which our employees must adhere, including (a) acting with integrity, (b) avoiding actual or apparent conflicts of interest, (c) complying with the rules and regulations of federal, state, provincial, local governments, and other appropriate regulatory agencies, (d) complying with all rules and regulations prohibiting fraud, bribery, corrupt practices, anti-competitive activities and trading with embargoed persons and countries, (e) complying with all company policies and procedures, and (f) actively promoting ethical behavior in the workplace.
Our governance programs and policies can be found on the Company’s sustainability webpages, which is routinely updated and includes a description of our enterprise risk management program and our policies on child labor, human trafficking, anti-harassment, antibribery, and cybersecurity all of which are evaluated by third-parties, including EcoVadis. In addition, the investors pages of our website contain additional materials regarding our corporate governance process, including our Board committee charters, our corporate governance guidelines, our Code of Conduct, our Supplier Code of Conduct and other documents.
Additional Sustainability Information: Further information about our sustainability programs can be found on our website at https://www.ecovyst.com/sustainability/. The information available on our sustainability website includes our sustainability report, our sustainability goals (and how such goals map to the UN Sustainable Development Goals), materiality matrix, letters of assurance, Global Reporting Initiative (GRI) Disclosure and Sustainability Accounting Standards Board (SASB) Index, our Health Safety Environment & Security Policy Statement, our Corporate Code of Conduct, our Human Rights Policy Statement, a description of our Ethics & Compliance Complaint and Review Process and our Labor Policy. The further information contained on our website is not incorporated herein by reference and is not a part of this Annual Report on Form 10-K.

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Environmental Regulations
We are subject to extensive, evolving and increasingly stringent national, state and/or local environmental laws and regulations, which address, among other things, the following:
emissions to the air;
discharges to soils and surface and subsurface waters;
other releases into the environment;
prevention and remediation of releases into the indoor or outdoor environment;
generation, handling, storage, transportation, treatment and disposal of waste materials;
maintenance of safe conditions in the workplace;
registration and evaluation of chemicals;
production, handling, labeling or use of chemicals used or produced by us; and
stewardship of products after manufacture.
Again, we apply the principles of the Environmental Management standard of the International Organization for Standardization (ISO 14001) at our facilities throughout the world. For chemical facilities in the United States, we also adhere to the Responsible Care RC14001 Technical Specifications of the American Chemistry Council.
We maintain policies and procedures to monitor and control HSE risks, and to monitor compliance with applicable state, national, and international HSE requirements. We have a strong HSE organization. We maintain a staff of professionals who are responsible for environmental, safety, health and product regulatory compliance. We have implemented a corporate audit program for all of our facilities. However, we cannot provide assurance that we will be in full compliance at all times with all applicable environmental laws and regulations. We expect that stringent environmental regulations will continue to be imposed on us and our industry in general. Evolving chemical regulation programs throughout the world could impose testing requirements or restrictions on our chemical raw materials and products.
Environmental Remediation
Environmental laws and regulations require mitigation or remediation of the effects of the disposal or release of chemical substances. Under some of these regulations, as the current or former owner or operator of a property, we could be held liable for the costs of removal or remediation of hazardous substances on or under the property, without regard to whether we knew of or caused the contamination, and regardless of whether the practices that resulted in the contamination were permitted at the time they occurred. Many of our current or former production sites have an extended history of industrial use, and it is impossible to predict precisely what effect these laws and regulations will have on us in the future. Soil and groundwater contamination requiring investigation and remediation has been discovered at some of the sites, and might occur or be discovered at other sites. Several active and former facilities currently are undergoing investigation and remediation, including sites in Dominguez, CA and Martinez, CA.
Environmental Programs
We have comprehensive HSE compliance, auditing and management programs in place to assist in our compliance with applicable regulatory requirements and with internal policies and procedures, as appropriate. Each facility has developed and implemented specific critical occupational health, safety, environmental, security and loss control programs.
We also have implemented a HSE organizational structure with executive committee level leadership and dedicated environmental experts. We have a Global Director of Health, Safety and Process Safety Management as well as Regional HSE Specialists and Managers who are embedded in the field and provide HSE expertise and support to operating sites. Certain, larger sites may have dedicated environmental or safety personnel.
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Product Safety and Product Stewardship
We have established a Product Safety and Product Stewardship management system that is compliant with the RC14001 technical specification and is supported by a highly skilled Director of Product Stewardship, who is a “Registration, Evaluation, Authorisation and Restriction of Chemicals” (“REACH”) Specialist. We conduct Product Stewardship reviews as part of new product development and routinely evaluate product safety risk for raw materials, intermediates, and products.
As a chemical company, we are subject to extensive and evolving regulations regarding the manufacturing, processing, distribution, importing, exporting, and labeling of our products and raw materials. In the European Union, the REACH regulations came into effect in 2007, with implementation rolling out over time. Registered chemicals then can be subject to further evaluation and potential restrictions. Our high-volume chemicals have been registered under REACH; lower-volume chemicals (mainly catalysts) were registered by the applicable 2018 deadline. To date, no further testing has been required.
Since the promulgation of REACH, other countries have enacted or are in the process of implementing similar comprehensive chemical regulations. These programs include the Korea REACH law, which is requiring registration and potential testing of chemicals, and similar programs implemented in the UK, Taiwan, Turkey, India, and elsewhere. In the US, all pertinent chemicals have been designated as “active” under the US Frank R. Lautenberg Chemical Safety for the 21st Century Act. At this time, none have been designated as chemicals which the EPA will prioritize and evaluate for regulation. Based on our chemicals and the various regulations promulgated to date, we do not anticipate costly testing requirements nor severe restrictions, but cannot guarantee that we will not be subject to requirements for our products or raw materials that could materially affect our operations. In particular, some of our products might be characterized as nanomaterials and then be subject to evolving, new nanomaterial regulations.
We remain alert for any regulatory changes which may impact our products and their end uses.
Available Information
Our website address is www.ecovyst.com. We make available free of charge through our website our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended (“Exchange Act”), as well as reports on Forms 3, 4 and 5 filed pursuant to Section 16 of the Exchange Act, as soon as reasonably practicable after such documents are electronically filed with, or furnished to, the Securities and Exchange Commission (“SEC”). The SEC maintains an Internet website, http://www.sec.gov, which contains reports, proxy and information statements, and other information regarding our Company and other issuers that file electronically with the SEC. The information on our website is not, and shall not be deemed to be, a part of this report or incorporated into any other filings we make with the SEC.
Our Corporate Governance Guidelines, Code of Business Conduct and the charters of the Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and Health, Safety and Environment Committee of our Board of Directors are also available on our website and are available in print to any shareholder upon request by writing to Ecovyst Investor Relations, 300 Lindenwood Drive, Malvern, PA 19355. In accordance with SEC rules, we intend to disclose any amendment (other than any technical, administrative or other non-substantive) to the Code of Business Conduct, or any waiver of any provision thereof with respect to any of our executive officers, on our website within four business days following such amendment or waiver.
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ITEM 1A.    RISK FACTORS.
In addition to the other information contained in this Form 10-K, you should carefully consider the following risks that we believe are the material risks that we face. The risks described below could have a material adverse impact on our business, financial condition, cash flows and results of operations, and should be read together and in conjunction with the forward-looking statements and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in Item 7 of this Form 10-K, and our consolidated financial statements and the accompanying notes thereto.

Risks Related to Our Business Operations
As a global business, we are exposed to local business risks in different countries, which could have a material adverse effect on our financial condition, results of operations and cash flows.
We have operations in several countries, including manufacturing sites, research and development facilities, sales personnel and customer support operations. As of December 31, 2023, we operated ten manufacturing facilities. For the year ended December 31, 2023, our foreign subsidiaries accounted for 6% of our sales. Our operations are affected directly and indirectly by global regulatory, economic, political and social conditions, including:
new and different legal and regulatory requirements in local jurisdictions;
export duties or import quotas;
domestic and foreign customs and tariffs or other trade barriers, including the threat of escalating trade disputes that may result in higher tariffs and the imposition of trade sanctions against certain countries, persons and entities;
potential difficulties in staffing and labor disputes;
potential difficulties in managing and obtaining support and distribution for local operations;
increased costs of, and availability of, raw materials, energy, transportation or shipping;
credit risk and financial condition of local customers and distributors;
potential difficulties in protecting intellectual property rights;
risk of nationalization of private enterprises by foreign governments;
potential imposition of restrictions on investments;
the imposition of withholding taxes or other taxes or royalties on our income, or the adoption of other restrictions on foreign trade or investment, including currency exchange controls;
capital controls;
potential difficulties in obtaining and enforcing legal judgments in jurisdictions outside the United States;
potential difficulties in obtaining and enforcing relief in the United States against parties located outside the United States;
potential difficulties in enforcing agreements and collecting receivables;
risks relating to environmental, health and safety matters;
regional conflicts, such as the invasion of Ukraine by Russia and the conflict involving Israel and Hamas and potentially other countries in the Middle East;
risks relating to information security and cyber security events;
risks relating to epidemics and pandemics and effects therefrom; and
local political, economic and social conditions, including the possibility of hyperinflationary conditions and political instability in certain countries.
We may not be successful in developing and implementing policies and strategies to address the foregoing factors in a timely and effective manner at each location where we do business. Consequently, the occurrence of one or more of
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the foregoing factors could have a material adverse effect on our international operations or upon our financial condition, results of operations and cash flows.

Our operations and financial results have been and may continue to be adversely affected by general economic conditions.
We sell advanced materials, catalysts and services that are used in manufacturing processes and as components of, or ingredients in, other products and, as a result, our sales are correlated with and affected by fluctuations in the level of industrial production and manufacturing output and by fluctuations in general economic activity. Demand for the products we manufacture often depends on trends in demand in the end uses our customers serve. General economic conditions and macroeconomic trends, including economic recessions and inflation, could affect overall demand for our products and any overall decline in such demand could significantly reduce our sales and profitability. In addition, volatility and disruption in financial markets could adversely affect our sales and results of operations by limiting our customers’ ability to obtain the financing necessary to maintain or expand their own operations.
Unfavorable global economic conditions could adversely affect our business, financial condition, and results of operations.
Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. For example, during the past several years the global economy has experienced extreme volatility and disruptions, including significant volatility in commodity and market prices, including increasing energy prices, volatility in sulfur prices, declines in consumer confidence, declines in economic growth, supply chain interruptions, uncertainty about economic stability, record inflation globally, rising interest rates and the threat of recession. Unfavorable economic conditions could result in a variety of risks to our business, including demand and pricing for our products and difficulty in forecasting our financial results. A weak or declining economy also could strain our suppliers, possibly resulting in supply chain disruptions. In addition, inflation has increased our costs, which could impact our profitability. These and other economic factors could adversely impact our business and results of operations.
Exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows.
As a result of our international operations, for the year ended December 31, 2023, we generated 6% of our sales and associated expenses in currencies other than U.S. dollars. We incur currency transaction risk whenever we enter into either a purchase or sale transaction using a currency other than the local currency of the transacting entity. The main currencies to which we are exposed, besides the U.S. dollar, are the Euro and the British pound. The exchange rates between these currencies and the U.S. dollar have fluctuated significantly in recent years and may continue to do so in the future. In many cases, we sell exclusively in those jurisdictions and do not have the ability to mitigate our exposure to currency fluctuations through our operations. Accordingly, to the extent that we are unable to match sales made in such foreign currencies with costs paid in the same currency, exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows. In the past, we have experienced economic loss and a negative impact on earnings as a result of foreign currency exchange rate fluctuations and any future fluctuations may have similar impacts. We expect that the amount of our sales denominated in non-U.S. dollar currencies may increase in future periods. Given the volatility of exchange rates, there can be no assurance that we will be able to effectively manage our currency transaction risks or that any volatility in currency exchange rates will not have a material adverse effect on our financial condition or results of operations. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Quantitative and Qualitative Disclosures about Market Risk.”
Additionally, because our consolidated financial results are reported in U.S dollars, the translation of sales or earnings generated in other currencies into U.S. dollars can result in a significant increase or decrease in the amount of those sales or earnings in our financial statements, which also affects the comparability of our results of operations and cash flows between financial periods.
Our international operations require us to comply with anti-corruption laws, economic sanctions, export controls and similar laws and regulations of the U.S. government and various international jurisdictions in which we do business.
Doing business on a worldwide basis requires us and our subsidiaries to comply with the laws and regulations of the U.S. government and various international jurisdictions, and our failure to successfully comply with these laws and regulations may restrict our operations, trade practices, investment decisions and partnering activities and may expose us to liabilities. Such laws and regulations apply to companies, individual directors, officers, employees and agents.
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In particular, our international operations are subject to U.S. and foreign anti-corruption laws and regulations, such as the Foreign Corrupt Practices Act (“FCPA”) and the U.K. Bribery Act. For example, the FCPA prohibits us from providing anything of value to foreign officials for the purposes of influencing official decisions or obtaining or retaining business or otherwise obtaining favorable treatment, and requires us to maintain adequate record-keeping and internal accounting practices to accurately reflect our transactions. As part of our business, we may deal with state-owned business enterprises, the employees and representatives of which may be considered foreign officials for purposes of the FCPA. In addition, some of the international locations into which we sell our products lack a developed legal system and have elevated levels of corruption. As a result, we are exposed to corruption-related risk.
In addition, we are required to comply with applicable economic sanctions, export controls, and similar laws and regulations imposed by the U.S. government and other countries. These laws and regulations may restrict our business practices, or the counterparties or regions with which we can trade. In addition, these laws and regulations are subject to frequent change, and such changes may require us to adjust our business practices, including by ceasing business activities in newly sanctioned countries or regions or with newly sanctioned entities or individuals, or to modify our compliance program. For example, the invasion of Ukraine by Russia and the related sanctions, export controls or other actions that have been or may be initiated by nations—including the U.S., the European Union, the United Kingdom, and Russia—could disrupt or otherwise adversely impact our customers in those countries, as well as adversely impact our business or our supply chain, business partners or customers in other countries beyond Ukraine and Russia. Further, violations of these legal requirements are punishable by criminal fines and imprisonment, civil penalties, disgorgement of profits, injunctions, debarment from government contracts, loss of export privileges and other remedial measures.
We have established policies and procedures designed to assist us and our personnel in complying with applicable U.S. and international laws and regulations. These policies and procedures are codified in our Code of Conduct and other various policies. However, there can be no assurance that our policies and procedures will effectively prevent us from violating these laws and regulations in every transaction in which we may engage, and such a violation could subject us to governmental investigations and adversely affect our reputation, business, financial condition and results of operations.
Alternative technology or other changes in our customers’ products may reduce or eliminate the need for certain of our products.
Many of the products that we sell are used in manufacturing processes and/or to produce other products and, as a result, changes in our customers’ end products or processes or alternative technologies may enable our customers to reduce or eliminate consumption or use of our products. Additionally, shifting consumer preference could result in a significant reduction in the future use of fossil fuels, which would have a negative impact on our zeolite catalysts and Ecoservices businesses. If we are unable to respond appropriately to such new developments, such changes could seriously impair our ability to profitably market certain of our products.
Our new product development and research and development efforts may not succeed and our competitors may develop more effective or successful products.
The industries in which we operate are subject to periodic technological changes and ongoing product improvements. In order to maintain our margins and remain competitive, we must successfully develop, manufacture and market new or improved products. As a result, we must commit substantial resources each year to new product research and development. Ongoing investments in new product research and development could result in higher costs without a proportional increase in revenues. Additionally, for any new product program, there is a risk of technical or market failure, in which case we may need to commit additional resources to the program and may not be able to develop the new products needed to maintain our competitive position. Moreover, new products may have lower margins than the products they replace or may not successfully attract end users.
We also expect competition to increase as our competitors develop and introduce new and enhanced products. As such products are introduced, our products may become obsolete or our competitors’ products may be marketed more effectively. If we fail to develop new products, maintain or improve our margins with our new products or keep pace with technological developments, our business, financial condition, results of operations and cash flows will suffer.

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If we are unable to pass on increases in raw material prices, including natural gas, to our customers or to retain or replace our key suppliers, our results of operations and cash flows may be negatively affected.
We purchase significant amounts of raw materials, including precursor products in our Advanced Materials & Catalysts business and sulfur in our Ecoservices business, and we purchase significant amounts of natural gas to supply the energy required in our production process. The cost of these raw materials represents a substantial portion of our operating expenses and our results of operations have been, and could in the future be, significantly affected by increases in the costs of such raw materials. In addition, we obtain a significant portion of our raw materials from certain key suppliers. If any of those suppliers is unable to meet its obligations under current or future supply agreements, we may be forced to pay higher prices to obtain the necessary raw materials. Furthermore, if any of the raw materials that we use become unavailable within the geographic area from which we currently source them, we may not be able to obtain suitable and cost-effective substitutes. Any interruption of supply or any price increase of raw materials could adversely affect our profitability.
While we attempt to match raw material price increases with corresponding product price increases, our ability to pass on increases in the cost of raw materials to our customers is, to a large extent, dependent upon our contractual arrangements and market conditions. There may be periods of time during which we are not able to recover increases in the cost of raw materials due to our contractual arrangements or weakness in demand for, or oversupply of, our products. Specifically, timing differences between price adjustments of raw materials and adjustments to our product prices, which in many cases are adjusted quarterly or less often, have had and may continue to have a negative effect on our profitability. Even in periods during which raw material prices decline, we may suffer decreasing profits if customers seek relief in the form of lower sales prices or if the raw material price reductions occur at a slower rate than decreases in the selling prices of our products. Such volatility can result in commercial disputes with customers and suppliers with respect to interpretations of complex contractual arrangements, the adverse resolution of which could reduce our profitability.
In the past, we have entered into long-term supply contracts for certain of our raw materials. As these contracts expire, we may not be able to renegotiate or enter into new long-term supply contracts that will offer similar protection from price increases and other fluctuations on terms that are satisfactory to us or at all.
We face substantial competition in the industries in which we operate.
Our Advanced Materials & Catalysts segment primarily competes with other global producers in the petrochemicals and refining industries such as Grace, BASF, UOP, and Albemarle, as well as other niche competitors such as Tosoh, Axens, and Haldor Topsoe. In our Ecoservices segment, we compete in the North American refining services industry with competitors such as Chemtrade and Veolia. We believe that we typically compete on the basis of performance, product consistency, quality, reliability, and ability to innovate in response to customer demands.
Our competitors may improve their competitive position in our core end use applications by successfully introducing new products, improving their manufacturing processes, expanding their capacity or manufacturing facilities or responding more effectively than we do to new or emerging technologies and changes in customer requirements. Some of our competitors may be able to lower prices for products that compete with our products if their costs are lower. In addition, consolidation among our competitors or customers may result in reduced demand for our products or make it more difficult for us to compete. Some of our competitors’ financial, technological and other resources may be greater than ours or they may have less debt than we do and, as a result, may be better able to withstand changes to industry conditions. The occurrence of any of these events could materially adversely affect our financial condition and results of operations.
We are subject to the risk of loss resulting from non-payment or non-performance by our customers.
Our credit procedures and policies may not be adequate to minimize or mitigate customer credit risk. Our customers may experience financial difficulties, including bankruptcies, restructurings and liquidations. These and other financial problems our customers may experience, as well as potential financial weakness in the industries in which we operate or general economic conditions, may increase our risk in extending trade credit to customers. A significant adverse change in a customer’s financial position could cause us to limit or discontinue business with such customer, require us to assume more credit risk relating to such customer’s receivables or limit our ability to collect accounts receivable from such customer, any of which could have a material adverse effect on our business, results of operations, financial condition and liquidity.
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We rely on a limited number of customers for a meaningful portion of our business. A loss of one or more of these customers could adversely impact our profitability.
A loss of any significant customer, including a pipeline customer in our Ecoservices segment, or a decrease in the provision of products to any significant customer could have an adverse effect on our business until alternative arrangements are secured. Any alternative arrangement to replace the loss of a customer could result in increased variable costs relating to product shipment. In addition, any new customer agreement we enter into may not have terms as favorable as those contained in our current customer agreements, which could have a material adverse effect on our business, financial condition and results of operations. For the year ended December 31, 2023, our top ten customers represented approximately 60% of our sales and one single customer represented 13% or $91.5 million of our sales in both Ecoservices and Advanced Materials & Catalysts.
Refineries, which represent a sizable subset of our Ecoservices segment customer base, have undergone significant consolidation and additional consolidation is possible in the future. Such consolidation could further increase our reliance on a small number of customers and further increase our customers’ leverage over us, resulting in downward pressure on prices and an adverse effect on our profitability.
Multi-year customer contracts in our Ecoservices segment are subject to potential early termination and such contracts may not be renewed at the end of their respective terms.
Many of the customer contracts in our Ecoservices segment are multi-year agreements. Sulfuric acid regeneration customer contracts are typically on five- to ten-year terms and virgin sulfuric acid customer contracts are typically on one- to five-year terms, with larger customers typically favoring longer terms. Excluding contracts with automatic evergreen provisions, approximately 20% of our sulfuric acid volume for the year ended December 31, 2023 was under contracts expiring at the end of 2024 or beyond. In addition, our sulfuric acid regeneration contracts with major refinery customers typically allow for termination with advance notice of one to two years. We cannot provide assurance that our existing contracts will not be subjected to early terminations or that our expiring contracts will be renewed at the end of their terms. If we receive a significant number of such contract terminations or experience non-renewals from key customers in our Ecoservices segment, our results of operations, financial condition and cash flows may be materially adversely affected.
Our quarterly results of operations are subject to fluctuations because the demand for some of our products is seasonal.
Our Ecoservices segment typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer months. Because of the seasonality of some of our product groups, the results for any one quarter are not necessarily indicative of the results that may be achieved for any other quarter or for the full year.
Our growth projects may result in significant expenditures before generating revenues, if any, which may materially and adversely affect our ability to implement our business strategy.
We have made and continue to make significant investments in each of our businesses. These projects require us to commit significant capital to, among other things, implement engineering plans and obtain the necessary permits before we generate revenues related to our investments in these businesses. Such projects may take longer to complete or require additional unanticipated expenditures and may never generate profits. If we fail to recover our investment, or these projects never become profitable, our ability to implement our business strategy may be materially and adversely affected.
We may be liable for damages based on product liability claims brought against us or our customers for costs associated with recalls of our or our customers’ products.
Even though we are generally an advanced materials and services supplier rather than a manufacturer of finished goods, the sale of our products involves the risk of product liability claims and voluntary or government-ordered product recalls. For example, certain of the products that we manufacture are used in chemical manufacturing processes in our customers’ manufacturing operations and are used in and around other chemical manufacturing facilities and other locations where personal injury or property damage may occur. While we attempt to protect ourselves from product liability claims and exposures through our adherence to standards and specifications, quality control and assurance and through contractual negotiations and provisions, there can be no assurance that our efforts will ultimately protect us from such claims. A product liability claim or voluntary or government-ordered product recall could result in substantial and unexpected expenditures, affect customer confidence in our products and divert management’s attention from other
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responsibilities. A product recall or successful product liability claim or series of claims against us in excess of our insurance coverage and for which we are not otherwise indemnified could have a material adverse effect on our business, financial condition, results of operations or cash flows. We have product liability insurance in amounts that we believe are adequate to cover this product liability risk. However, our insurance may not provide adequate coverage against all potential liabilities, including product recall liabilities. If a claim is brought against us, we might be required to pay legal and other expenses to defend the claim, as well as pay uncovered damage awards resulting from a claim brought successfully against us and these damages could be significant and have a material adverse effect on our financial condition. Furthermore, whether or not we are ultimately successful in defending any such claims, we might be required to direct significant financial and managerial resources to such defense and adverse publicity is likely to result.
We are required to comply with a wide variety of laws and regulations, and are subject to regulation by various federal, state and foreign agencies, and our failure to comply with existing and future regulatory requirements could adversely affect our financial condition, results of operations and cash flows.
We compete in industries in which we and our customers are subject to federal, state, local, international and transnational laws and regulations. Such laws and regulations are numerous and sometimes conflicting, and any future changes to such laws and regulations could adversely affect us.
In order to obtain regulatory approval for certain of our new products, we must, among other things, demonstrate to the relevant authority that the product is safe and effective for its intended uses and that we are capable of manufacturing the product in accordance with current regulations. The process of seeking approvals can be costly, time-consuming and subject to unanticipated and significant delays. Any delay in obtaining, or any failure to obtain or maintain, these approvals would adversely affect our ability to introduce new products and to generate sales from those products, and could have an adverse effect on our business, financial condition, results of operations or cash flows.
Our products, including the raw materials we handle, are subject to rigorous chemical registration and industrial hygiene regulations and investigation. There is risk that a key raw material, chemical or substance, or one of the end products of which our products are a part of or are utilized to make, may be recharacterized as having a toxicological or health-related impact on the environment, our customers or our employees. Industrial hygiene regulations are continually strengthened and if such recharacterization occurs, the relevant raw material, chemical or product may be banned or we may incur increased costs in order to comply with new requirements. Changes in industrial hygiene regulations also affect the marketability of certain of our products, and future regulatory changes may have a material adverse effect on our business.
New laws and regulations, and changes in existing laws and regulations, may become effective in the future and could prevent or inhibit the development, distribution and sale of our products, including, but not limited to, the imposition of additional compliance costs, seizures, confiscation, recall or monetary fines. For example, as discussed in more detail in “Business-Environmental Regulations” and “Business-Chemical Product Regulation,” we may be materially impacted by regulatory initiatives worldwide with respect to chemical product safety such as the 2016 amendments to the U.S. Toxic Substances Control Act, the E.U. REACH regulation, and/or similar regulations being enacted in other countries (e.g., China REACH; Korea REACH). Additionally, current or future U.S. administrations may seek to tighten current environmental standards and regulations, including, but not limited to, the Corporate Average Fuel Economy standards, which could have a material adverse effect on our sales into the clean fuels, emission control and other industries.
We are subject to extensive environmental, health and safety regulations and face various risks associated with potential non-compliance or releases of hazardous materials.
Like other chemical companies, our operations and properties are subject to extensive and stringent federal, state, local and foreign environmental laws and regulations. U.S. federal environmental laws that affect us include, but are not limited to, the Resource Conservation and Recovery Act (“RCRA”), the Clean Air Act, the Clean Water Act and the Comprehensive Environmental Response Compensation and Liability Act (“CERCLA”). These laws govern, among other things, emissions to the air, discharges or releases of hazardous substances to land, surface, subsurface strata and water, wastewater discharges and the generation, handling, storage, transportation, treatment, disposal and remediation of hazardous materials and petroleum products. We are also subject to other federal, state, local and foreign laws and regulations regarding chemical and product safety as well as employee health and safety matters, including process safety requirements. These laws and regulations may become more stringent over time and the failure to comply with such laws and regulations can result in significant fines or penalties.
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We have in the past been and currently are the subject of investigations and enforcement actions pursuant to environmental laws, including the Clean Air Act. Some of these matters were resolved through the payment of significant monetary penalties and a requirement to implement corrective actions at our facilities. For instance, we remain subject to a 2007 Consent Decree that resolves certain alleged Clean Air Act violations at six Ecoservices operating locations involving New Source Review, Prevention of Significant Deterioration and New Source Performance Standard obligations under the U.S. federal rules for the pollutants sulfur dioxide and sulfuric acid mist. The Consent Decree required Solvay (the owner of such facilities at the time) to pay a $2 million penalty and spend approximately $34 million on air pollution controls at our facilities, the majority of which was received from customers in contractual arrangements. Work under the Consent Decree has proceeded since 2007, and all of the significant capital improvements related to the Consent Decree have been completed. Three of our operating locations have been released from the scope of the Consent Decree and we are seeking release of the other locations covered by the Consent Decree. Upon issuance of New Source Review permit amendments at the remaining sites, we expect to be fully released from the Consent Decree.
We are required by these environmental laws and regulations to obtain registrations, licenses, permits and other approvals in order to operate, make disclosures to public authorities about our chemical handling and usage activities and install expensive pollution control and spill containment equipment at our facilities, or incur other capital expenditures aimed at achieving or maintaining compliance with such laws and regulations. The failure to timely identify and implement any such capital projects required to achieve or maintain compliance could expose us to enforcement and penalty.
Under CERCLA and analogous statutes in local and foreign jurisdictions, current and former owners and operators of land impacted by releases of hazardous substances are strictly liable for the investigation and remediation of the contamination resulting from the release. Liability under CERCLA and analogous laws is strict, unlimited, joint, several and retroactive, may be imposed regardless of fault and may relate to historical activities or contamination not caused by the affected property’s current owner or operator. We could be held responsible for all cleanup costs at a site, whether currently or formerly owned or operated, regardless of fault, knowledge, timing or cause of the contamination. Further, under CERCLA and analogous laws, we may be jointly and severally liable for contamination at third party sites where we or our predecessors in interest have sent waste for treatment or disposal, even if we complied with applicable laws. In addition, we may face liability for personal injury, property damage and/or natural resource damage resulting from environmental conditions attributable to hazardous substance releases at or from facilities we currently own or operate or formerly owned or operated or to which we sent waste. As such, a product spill or emission at one of our facilities or otherwise resulting from our operations could have adverse consequences on the environment and surrounding community and could result in significant liabilities with respect to investigation and remediation.
Our facilities have an extended history of industrial use, and soil and groundwater contamination exists at some of our sites. As of December 31, 2023, we had current remediation, monitoring and/or maintenance obligations at several of our current or former sites, including Dominguez, California and Martinez, California. As of December 31, 2023, we had established reserves of approximately $0.4 million to cover anticipated expenses at these sites, all of which have reached relatively mature stages of the investigation, remediation or monitoring process. Actual costs to complete these projects may exceed our current estimates.
As of December 31, 2023, our total reserves associated with environmental remediation and enforcement matters were $0.4 million. In addition to the ongoing remediation and monitoring activities discussed above, there is risk that the long-term industrial use at our facilities may have resulted in, or may in the future result in, contamination that has yet to be discovered, which could require additional, unplanned investigation and remediation efforts by us for which no reserves have been established, potentially without regard to whether we knew of, or caused, the release of such contaminants. Discovery of additional or unknown conditions at our facilities could have an adverse impact on our business by substantially increasing our capital expenditures, including compliance, investigation and remediation costs. Such environmental liabilities attached to our properties, or for properties that we are otherwise responsible for, could have a material adverse effect on our results of operations or financial condition.
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Existing and proposed regulations to address climate change by limiting greenhouse gas emissions may cause us to incur significant additional operating and capital expenses and may impact our business and results of operations.
Certain of our operations result in emissions of greenhouse gases (“GHGs”), such as carbon dioxide. Growing concern about the sources and impacts of global climate change has led to a number of domestic and foreign legislative and administrative measures, both proposed and enacted, to monitor, regulate and limit carbon dioxide and other GHG emissions. In the European Union, our emissions are regulated under the E.U. Emissions Trading System (the “E.U. ETS”), an E.U.-wide trading scheme for industrial GHG emissions. The E.U. ETS is anticipated to become progressively more stringent over time, including by reducing the number of allowances to emit GHGs that E.U. member states will allocate without charge to industrial facilities. In the United States, the EPA has promulgated federal GHG regulations under the Clean Air Act that affect certain sources. For example, the EPA has issued mandatory GHG reporting requirements, under which our Dominguez, California and Baton Rouge, Louisiana facilities currently report. Moreover, California has enacted the Global Warming Solutions Act of 2006 (“Assembly Bill 32”), a law that establishes a comprehensive program to reduce GHG emissions from all sources throughout the state and contains reporting requirements under which our Dominguez and Martinez facilities currently report. Our Dominguez facility also participates in the emissions trading market established under Assembly Bill 32. Although we believe it is likely that GHG emissions will continue to be regulated in at least some regions of the United States and in other countries (in addition to the European Union) in the future, we cannot yet predict the form such regulation will take (such as a cap-and-trade program, technology mandate, emissions tax or other regulatory mechanism) or, consequently, estimate the costs that we may be required to incur to meet such requirements, which could, for example, require that we install emission control equipment, purchase emissions allowances, administer and manage our GHG emissions program or address other regulatory obligations. Such requirements could also adversely affect our energy supply or the costs and types of raw materials that we use for fuel. Accordingly, regulations controlling or limiting GHG emissions could have a material adverse effect on our business, financial condition or results of operations, including by reducing demand for our products.
Sustainability initiatives may result in operational changes and expenditures, reduced demand for our products and adversely affect our business.
We recognize that sustainability is a growing global environmental concern. Continuing political and social attention to the issue of sustainability has resulted in both existing and pending international agreements and national, regional or local legislation and regulatory measures to increase sustainability. As a result of heightened public awareness and attention to the issue of sustainability as well as continued regulatory initiatives, demand for certain of our products may be reduced, which may have an adverse effect on our sales volumes, revenues and margins.
This growing global environmental concern is also manifesting in existing and pending sustainability legislation, regulations, and directives at the federal, state and international levels, including, but not limited to, the E.U. Corporate Sustainability Reporting Directive (“CSRD”), the California Climate Corporate Data Accountability Act (SB 253) and GHG Climate-related Financial Risk Act (SB 261), and proposed United States SEC rules addressing Scope 1, 2, and 3 emissions. In the future, these developments are anticipated to increase the cost associated with complying with existing, pending, and future sustainability-related legislation, regulations and directives and such increased costs and/or our failure to comply with any such legislation, regulations and directives could adversely affect our financial condition, results of operations and cash flows.
Production and distribution of our products could be disrupted for a variety of reasons, and such disruptions could expose us to significant losses or liabilities.
Certain of the hazards and risks associated with our manufacturing processes and the related storage and transportation of raw materials, products and wastes may disrupt production at our manufacturing facilities and the distribution of products to our customers. These potentially disruptive risks include, but are not limited to, the following:
pipeline and storage tank leaks and ruptures;
explosions and fires;
inclement weather and natural disasters;
terrorist attacks;
failure of mechanical, process safety and pollution control equipment;
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chemical spills and other discharges or releases of toxic or hazardous substances or gases;
epidemics and pandemics and effects therefrom; and
exposure to toxic chemicals.
These hazards could expose employees, customers, the community and others to toxic chemicals and other hazards, contaminate the environment, damage property, result in personal injury or death, lead to an interruption or suspension of operations, damage our reputation and adversely affect the productivity and profitability of a particular manufacturing facility or our business as a whole. Such hazards could also result in the need for remediation, governmental enforcement, regulatory shutdowns, the imposition of government fines and penalties and claims brought by governmental entities or third parties. Legal claims and regulatory actions could subject us to both civil and criminal penalties, which could affect our product sales, reputation and profitability.
If disruptions at our manufacturing facilities or in our distribution channels occur, alternative options with sufficient capacity or capabilities may not be available, may cost substantially more or may require significant time to start production or distribution. Any of these scenarios could negatively affect our business and financial performance. If one of our manufacturing facilities or distribution channels is unable to produce or distribute our products for an extended period of time, our sales may be reduced by the shortfall caused by the disruption and we may not be able to meet our customers’ needs, which could cause them to seek other suppliers. Furthermore, to the extent a production disruption occurs at a manufacturing facility that has been operating at or near full capacity, the resulting shortage of our product could be particularly harmful because production at the manufacturing facility may not be able to reach levels achieved prior to the disruption. Such risks are heightened in our Ecoservices segment, which has operations and customers primarily located in the Gulf Coast, which is susceptible to a heightened risk of hurricanes, and in California, which is susceptible to a heightened risk of earthquakes. For example, in December 2022, the operations of our Ecoservices’ Houston and Hammond facilities were disrupted by Winter Storm Elliot.
The insurance that we maintain may not fully cover all potential exposures.
We maintain property, business interruption, casualty and other types of insurance, but such insurance may not cover all risks associated with the operation of our business or our manufacturing process and the related use, storage and transportation of raw materials, products and wastes in or from our manufacturing sites or distribution centers. While we have purchased what we deem to be adequate limits of coverage and broadly worded policies, our coverage is subject to exclusions and limitations, including higher self-insured retentions or deductibles and maximum limits and liabilities covered. Notwithstanding diligent efforts to successfully procure specialty coverage for environmental liability and remediation, we may incur losses beyond the limits or outside the terms of coverage of our insurance policies, including liabilities for environmental remediation. In addition, from time to time, various types of insurance for companies in the industries in which we operate have not been available on commercially acceptable terms or, in some cases, at all. We are potentially at additional risk if one or more of our insurance carriers fail. Additionally, severe disruptions in the domestic and global financial markets could adversely impact the ratings and survival of some insurers. Future downgrades in the ratings of enough insurers could adversely impact both the availability of appropriate insurance coverage and its cost. In the future, we may not be able to obtain coverage at current levels, if at all, and our premiums may increase significantly on coverage that we maintain.
We could be subject to damages based on claims brought against us by our customers or lose customers as a result of the failure of our products to meet certain quality specifications.
If a product fails to perform in a manner consistent with quality specifications, or has a shorter useful life than that which was guaranteed, a customer could seek replacement of the product or damages for costs incurred as a result of the product failing to perform as guaranteed. A successful claim or series of claims against us could cause reputational harm and have a material adverse effect on our financial condition and results of operations and could result in a loss of one or more customers.

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We may engage in strategic acquisitions or dispositions of certain assets or businesses that could affect our business, results of operations, financial condition and liquidity.
We may selectively pursue complementary acquisitions, such as the Chem32 acquisition, and joint ventures, such as the Zeolyst Joint Venture, each of which inherently involves a number of risks and presents financial, managerial and operational challenges, including:
potential disruption of our ongoing business and distraction of management;
difficulty with integration of personnel and financial and other systems;
hiring additional management and other critical personnel; and
increasing the scope, geographic diversity and complexity of our operations.
In addition, we may encounter unforeseen obstacles or costs in the integration of acquired businesses. For example, the presence of one or more material liabilities of an acquired company that are unknown to us at the time of acquisition may have a material adverse effect on our business. Our acquisition and joint venture strategy may not be received positively by customers, and we may not realize any anticipated benefits from acquisitions or joint ventures.
We may also opportunistically pursue dispositions of certain assets and businesses, which may involve material amounts of assets or lines of business, which could adversely affect our results of operations, financial condition and liquidity. If any such dispositions were to occur, under the terms of the agreements governing our outstanding indebtedness, we may be required to apply the proceeds of the sale to repay such indebtedness.
In addition, our strategic acquisitions and dispositions may also affect the diversity of our assets and our capital structure. As a result, our acquisitions and dispositions could affect our business, results of operations, financial condition, and liquidity. Further, all the risks associated with our acquisitions and dispositions may not be immediately known to us, and the anticipated benefits of such acquisition or disposition may not be fully realized.
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P., for a purchase price of $650.0 million, which was subject to certain adjustments for indebtedness, working capital, and cash at the closing of the transaction.
Effective on August 1, 2021, we completed the sale of our Performance Chemicals business to Cerberus Capital Management, L.P. and Koch Mineral & Trading LLC for a purchase price of $1.1 billion, which was subject to certain adjustments including for indebtedness, cash, working capital and transaction expenses at the closing of the transaction.
Our joint ventures may not operate according to their business plans if our partners fail to fulfill their obligations or differences in views among our partners results in delayed decisions or failures to agree on major issues, which may adversely affect our results of operations and force us to dedicate additional resources to these joint ventures.
We currently participate in a joint venture relating to the Zeolyst International business and may enter into additional joint ventures in the future. The nature of a joint venture requires us to share control with unaffiliated third parties and we sometimes have joint and several liability with our joint venture partners. If our joint venture partners do not fulfill their obligations, or if differences in views among the joint venture participants result in delayed decisions or failures to agree on major issues, the affected joint venture may not be able to operate according to its business plan. For example, the Zeolyst Joint Venture is structured as a general partnership in which we are equal partners with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell”. Accordingly, we do not control the Zeolyst Joint Venture and cannot unilaterally undertake strategies, plans, goals and operations or determine when cash distributions will be made to us. Furthermore, we are liable on a joint and several basis with Shell for all of the partnership’s liabilities if it does not have sufficient assets to satisfy such liabilities. Such factors may adversely affect our results of operation and force us to dedicate additional and unexpected resources to our joint ventures.
Our failure to protect our intellectual property rights could adversely affect our future performance and growth.
Protection of our proprietary processes, methods, compounds and other technologies is important to our business. We depend upon our ability to develop and protect our intellectual property rights to distinguish our products from those of our competitors. Failure to protect our existing intellectual property rights may allow our competitors to copy our products and may result in the loss of valuable proprietary technologies or other intellectual property. Failure to protect our innovations and trademarks by securing intellectual property rights could also result in our having to pay other
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companies for infringing on their intellectual property rights. We rely on a combination of patent, trade secret, trademark and copyright law as well as regulatory and judicial enforcement to protect such technologies and trademarks. In addition, the laws of many foreign countries do not protect our intellectual property rights to the same extent as the laws of the United States. As of December 31, 2023, we owned 21 patented inventions in the United States, with 175 patents issued in countries around the world and 61 patent applications pending worldwide covering such inventions. Some of these patents are licensed to others. In addition, we have acquired certain rights under patents and inventions of others through licenses. Should any of these licenses granted to us by third parties terminate prior to the expiration of the licensed intellectual property, we would need to cease using the licensed intellectual property, and either develop or license alternative technologies. In such a case, there can be no assurance that alternative technologies exist or that we would be able to obtain such a license on favorable terms.
Competitors and third parties may infringe on our patents or violate our intellectual property rights. Defending and enforcing our intellectual property rights can involve litigation and can be expensive and time consuming. Such proceedings could put our patents at risk of being invalidated and confidential information may be disclosed through the discovery process; these costs and diversion of resources could harm our business.
We cannot provide any assurances that any of our pending applications will mature into issued patents, or that any patents that have issued or may issue in the future do or will include claims with a scope sufficient to provide any competitive advantage. Patents involve complex legal and factual questions and, therefore, the issuance, scope, validity and enforceability of any patent claims we have or may obtain cannot be predicted with certainty. Patents may be challenged, deemed unenforceable, invalidated or circumvented. Patents may be challenged in the courts, as well as in various administrative proceedings before the United States Patent and Trademark Office or foreign patent offices. We are currently and may in the future be a party to various adversarial patent office proceedings involving our patents or the patents of third parties. Such challenges can result in some or all of the claims of the challenged patent being invalidated, deemed unenforceable, or interpreted narrowly which, in the case of challenges to our own patents, may be adverse to our interests. Accordingly, the issuance of patents is not conclusive of the validity, scope, or enforceability of such patents. Moreover, even if valid and enforceable, competitors may be able to design around our patents or use pre-existing technologies to compete with us.
We also rely upon unpatented proprietary know-how, continuing technological innovation and other trade secrets to develop and maintain our competitive position, which may not provide us with complete protection against competitors. Misappropriation or unauthorized disclosure of our proprietary know-how could harm our competitive position or have an adverse effect on our business. While it is our policy to enter into confidentiality agreements with our employees and third parties to protect our intellectual property rights and we strive to maintain the physical security of our properties and the security of our IT systems, there can be no assurances that:
our confidentiality agreements will not be breached;
our security measures will not be breached;
such agreements will provide meaningful protection for our trade secrets or proprietary know-how; or
adequate remedies will be available in the event of an unauthorized use or disclosure of such trade secrets and know-how.
In addition, there can be no assurances that others will not obtain knowledge of these trade secrets through independent development or other access by legal means.
Measures taken by us to protect these assets and rights may not provide meaningful protection for our trade secrets or proprietary manufacturing expertise and adequate remedies may not be available in the event of an unauthorized use or disclosure of our trade secrets or manufacturing expertise. In addition, as noted above, our patents and other intellectual property rights may be challenged, invalidated, circumvented or rendered unenforceable.
Furthermore, we cannot provide assurance that any pending patent or trademark application filed by us will result in an issued patent or registered trademark or, if patents are issued to us, that those patents will provide meaningful protection against competitors or against competitive technologies. The failure of our patents or other measures to protect our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds or trademarks and provide us with freedom to exclude competition could have an adverse effect on our business, financial condition, results of operations and cash flows. See “Business-Intellectual Property.”
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Our products may infringe the intellectual property rights of others, which may cause us to incur unexpected costs or prevent us from selling our products.
Our industry is characterized by vigilant pursuit of intellectual property rights, particularly with respect to our advanced silicas and zeolite catalysts product groups. Like us, our competitors rely on intellectual property rights to maintain profitability and competitiveness. As the number of products and competitors has increased, the likelihood of intellectual property disputes has risen. Although it is our policy and intention not to infringe valid patents of others, our processes, apparatuses, technology, proprietary manufacturing expertise, methods, compounds and products may infringe on issued patents or infringe or misappropriate other intellectual property rights of others. Accordingly, we continually monitor third-party intellectual property to confirm our freedom to operate. Nevertheless, we may be subject to legal proceedings and claims in the ordinary course of our business, including claims of alleged infringement of the patents or trademarks or infringement or misappropriation of other intellectual property rights of third parties by us or our licensees in connection with their use of our products. Intellectual property litigation is expensive and time-consuming, regardless of the merits of any claim, and could divert the attention of our management and technical personnel away from operating our business. If we were to discover that our processes, apparatuses, technology, products or trademarks infringe the valid intellectual property rights of others, we might need to obtain licenses from these parties or substantially reengineer or rebrand our products in order to avoid infringement. We may not be able to obtain the necessary licenses on acceptable terms, or at all, or be able to reengineer our products successfully or at an acceptable cost. Moreover, if we are sued for infringement and lose the suit, we could be required to pay substantial damages and/or be enjoined from using or selling the infringing products or technology or using the infringing trademark. Additionally or alternatively, we may seek to challenge third-party patents in administrative proceedings before the United States patent office or one or more foreign patent offices. Any of the foregoing could cause us to incur significant costs and prevent us from selling our products, which could have an adverse effect on our business, financial condition, results of operations and cash flows. Even if we ultimately prevail, the existence of lawsuits could prompt our customers to switch to alternative products. In addition, we have agreed, and will continue to agree, to indemnify certain customers for certain intellectual property infringement claims related to intellectual property relating to our products and the manufacture thereof. Should there be infringement claims against our licensees, we could be required to indemnify them for losses resulting from such claims or to refund amounts they have paid to us.
Disruption, failure or cybersecurity breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations.
We use computers and telecommunication systems to analyze and store financial and operating data and to communicate within our company, with outside business partners, and across international borders. These systems can be subject to technical system flaws; power loss; cyber attacks, including viruses, malware, phishing, ransomware, terrorism, and surveillance; unauthorized access; malicious software; intentional or inadvertent data privacy breaches by employees or others with authorized access; hacktivism; ransomware; physical or electronic break-ins; fires or natural disasters; supply chain attacks; and other cybersecurity issues. We have no assurance that our systems are appropriately redundant to withstand these events. Accordingly, such events could cause adverse effects and material disruptions to our operations or systems or those of our business partners; compromise the security, integrity, availability, and confidentiality of customer information, employee information, strategic projects, product formulas and other trade secrets, other business or personal sensitive data, including third party confidential information in our possession. Release of third party confidential information could materially harm our reputation, affect our relationships with such parties and expose us to liability. Although we have introduced many security measures, including firewalls and information technology security policies and training, these measures may not offer the appropriate level of security. A security breach or other compromise of our information security safeguards could expose our confidential information, including third party confidential information in our possession (such as customer information) to theft and misuse, which could in turn adversely affect our relationships with such third parties and have an adverse effect on our business, financial condition, results of operations and cash flows. In addition, a disruption, blockage, failure or a cyber breach of software or operating systems we use, or of the networks and infrastructure on which they rely, could damage critical production, distribution and/or storage assets, delay or prevent delivery to markets, and make it difficult or impossible to accurately account for production and settle transactions.
These impacts may adversely affect our relationships with employees, customers and other third parties and may have an adverse effect on our business reputation, competitiveness, financial condition, results of operations and cash flows, including damage to our operations, employees, or other third parties, resulting in remediation costs, litigation or regulatory actions. Although we have introduced many security measures, including firewalls and information
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technology security policies and training, these measures may not offer the appropriate level of security. We routinely experience attempts by external parties to penetrate and attack our networks and systems. Although such attempts to date have not resulted in any material breaches, disruptions, financial loss, or loss of business-critical information, our systems and procedures for protecting against such attacks and mitigating such risks may prove to be insufficient in the future. As technologies evolve and these cyber security attacks become more sophisticated, we may incur significant costs to upgrade or enhance our security measures to protect against such attacks, and we may face difficulties in fully anticipating or implementing adequate preventive measures or mitigating potential harm.

Risks Related to our Financial Condition
The non-GAAP financial information included in this Form 10-K is presented for informational purposes only and may not be an indication of our financial condition or results of operations in the future.
The non-GAAP financial information included in this Form 10-K includes information that we use to evaluate our past performance, but should not be considered in isolation or as an alternative to measures of our performance determined under GAAP.
Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.
Our operations are conducted through our subsidiaries and joint ventures. As a result, our ability to make future dividend payments, if any, is dependent on the earnings of our subsidiaries and joint ventures and the payment of those earnings to us in the form of dividends, loans or advances and through repayment of loans or advances from us. Payments to us by our subsidiaries and joint ventures will be contingent upon our subsidiaries’ or joint ventures’ earnings and other business considerations and may be subject to statutory or contractual restrictions. We have not paid regular dividends on our common stock; however, we paid a special cash dividend in December 2020 and in August 2021 that was financed with the cash proceeds from our sale of our Performance Materials and Performance Chemicals businesses, respectively. To the extent that we determine in the future to pay dividends on our common stock, the agreements governing our outstanding indebtedness significantly restrict the ability of our subsidiaries to pay dividends or otherwise transfer assets to us.
We may need to recognize impairment charges related to goodwill, identified intangible assets and fixed assets.
We are required to test goodwill and any other intangible asset with an indefinite life for possible impairment on the same date each year and on an interim basis if there are indicators of a possible impairment. We are also required to evaluate indefinite-lived intangible assets and fixed assets for impairment if there are indicators of a possible impairment.
There is significant judgment required in the analysis of a potential impairment of goodwill, identified intangible assets and fixed assets. If, as a result of a general economic slowdown or deterioration in one or more of the industries in which we operate or in our financial performance or future outlook, or if the estimated fair value of our long-lived assets decreases, we may determine that one or more of our long-lived assets is impaired. An impairment charge would be determined based on the estimated fair value of the assets and any such impairment charge could have a material adverse effect on our results of operations and financial position.
We performed our annual impairment test on goodwill on October 1, 2023, and determined there was no goodwill impairment.
We may be subject to future changes in tax legislation or exposure to additional tax liabilities that may adversely affect our results of operations.
We are subject to taxes in the U.S. as well as foreign jurisdictions where our subsidiaries are organized. Due to economic and political conditions, tax rates, tax laws and other non-tax legislation, such as economic substance regulations, our business may experience significant impacts as a result of prospective changes. For example, the Inflation Reduction Act (“IRA”) enacted in the U.S. on August 16, 2022 imposes several new taxes that became effective in 2023, including a 1% excise tax on stock repurchases. Our future effective tax rates may be affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities, changes in available tax credits or tax deductions, as well as changes in tax and other non-tax laws or their interpretation. Additionally, our organization is engaged in a number of cross-border intercompany transactions, subject to local transfer pricing regimes currently in place. We believe the economics of these transactions have been clearly
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reported, and the appropriate local transfer pricing documentation is contemporaneously available, although tax authorities may propose and potentially sustain adjustments that could result in changes to our mix of earnings in countries with differing statutory tax rates. The Organization of Economic Cooperation and Development (“OECD”), which represents a coalition of member countries, is supporting changes to numerous long-standing tax principles through its base erosion and profit shifting (“BEPS”) project. This project focuses on a number of issues, including the shifting of profits cross-border amongst affiliated entities. Given the scope of the Company's international operations and the fluid and uncertain nature of how the BEPS project might ultimately lead to future legislation, it is difficult to assess how any changes in tax laws would impact the Company's future income tax expense. For example, the Model Rules under BEPS’s Pillar Two include a common approach for a global minimum tax. The Company has assessed the minimum tax and does not expect it to be within the scope of the Model Rules beginning January 1, 2024. The Company will continue to monitor the BEPS project and the applicability of new tax legislation to the Company.
Our tax returns and other tax matters are subject to examination by local tax authorities and governmental bodies. We regularly assess the likelihood of an adverse outcome resulting from these examinations, in order to determine any resulting impact to our provision for taxes. There can be no assurance as to the outcome of these examinations. If our effective tax rates were to increase as a result of a tax examination, or if the ultimate determination of the taxes owed by us is for an amount in excess of amounts previously accrued, our operating results, cash flows and financial condition could be adversely affected.
We have underfunded pension plan liabilities. We will require current and future operating cash flow to fund these shortfalls. We have no assurance that we will generate sufficient cash flow to satisfy these obligations.
We maintain defined benefit pension plans covering employees who meet age and service requirements. While all of our plans have been frozen, our net pension liability and cost is materially affected by the discount rate used to measure pension obligations, the longevity and actuarial profile of our workforce, the level of plan assets available to fund those obligations and the actual and expected long-term rate of return on plan assets. Significant changes in investment performance or a change in the portfolio mix of invested assets can result in corresponding increases and decreases in the valuation of plan assets, particularly equity securities, or in a change in the expected rate of return on plan assets. Assets available to fund the pension obligations of our plans as of December 31, 2023 were approximately $61.6 million, or approximately $4.9 million less than the measured pension benefit obligation on a GAAP basis. In addition, any changes in the discount rate could result in a significant increase or decrease in the valuation of pension obligations, affecting the reported funded status of our pension plans as well as the net periodic pension cost in the following years. Similarly, changes in the expected return on plan assets can result in significant changes in the net periodic pension cost in the following years.
We also provide certain health care and life insurance benefits through an unfunded plan to a group of retirees in the United States who retired prior to the date on which these benefit programs were frozen. Current employees are not eligible for any post-retirement health care or life insurance benefits. Costs of these other post-employment benefit plans are dependent upon numerous factors, assumptions and estimates.
Risks Related to our Indebtedness
Our substantial level of indebtedness could adversely affect our financial condition.
We have substantial indebtedness, which as of December 31, 2023, totaled approximately $877.5 million. Our substantial indebtedness, combined with our other financial obligations and contractual commitments, could have important consequences, including:
requiring us to dedicate a substantial portion of our cash flows from operations to payments on our indebtedness, thereby reducing funds available for working capital, capital expenditures, acquisitions, selling and marketing efforts, product development and other purposes;
increasing our vulnerability to adverse economic and industry conditions, which could place us at a competitive disadvantage compared to our competitors that have relatively less indebtedness;
limiting our flexibility in planning for, or reacting to, changes in our business and the industries in which we operate;
increasing our exposure to rising interest rates because certain of our borrowings are at variable interest rates;
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restricting us from making investments, strategic acquisitions or causing us to make non-strategic divestitures; and
limiting our ability to borrow additional funds, or to dispose of assets to raise funds, if needed, for working capital, capital expenditures, acquisitions, product development and other corporate purposes.
Although the terms of the agreements governing our outstanding indebtedness contain restrictions on the incurrence of additional indebtedness, such restrictions are subject to a number of important exceptions and indebtedness incurred in compliance with such restrictions could be substantial. If we and our restricted subsidiaries incur significant additional indebtedness, the related risks that we face could increase.
The terms of our indebtedness restrict our current and future operations, particularly our ability to respond to change or to take certain actions.
The indentures governing our outstanding indebtedness contain a number of restrictive covenants that impose significant operating and financial restrictions on us and may limit our ability to engage in acts that may be in our long-term best interest, including restrictions on our ability to incur additional indebtedness, make investments, acquisitions, loans and advances, sell, transfer or otherwise dispose of our assets or incur liens. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Debt.” In addition, the restrictive covenants in the agreements governing our senior secured credit facilities require us to maintain specified financial ratios and satisfy other financial condition tests. Our ability to meet these financial ratios and tests can be affected by events beyond our control.
A breach of such covenants could result in an event of default unless we obtain a waiver to avoid such default. If we are unable to obtain a waiver, such a default may allow our creditors to accelerate the related debt and may result in the acceleration of, or default under, any other debt to which a cross-acceleration or cross-default provision applies. In the event our lenders or noteholders accelerate the repayment of our borrowings, we and our subsidiaries may not have sufficient assets to repay that indebtedness.
Risks Related to our Common Stock
Our stock price could be extremely volatile and, as a result, you may not be able to resell your shares at or above the price you paid for them.
Since launching our IPO in September 2017, the price of our common stock, as reported on the New York Stock Exchange, has ranged from a low of $8.20 on November 15, 2022 to a high of $18.90 on March 9, 2021. In addition, the stock market in general has been highly volatile. As a result, the market price of our common stock is likely to be similarly volatile, and investors in our common stock may experience a decrease, which could be substantial, in the value of their stock, including decreases unrelated to our operating performance or prospects, and could lose part or all of their investment. The price of our common stock could be subject to wide fluctuations in response to a number of factors, including those described elsewhere herein and others such as:
variations in our operating performance and the performance of our competitors;
actual or anticipated fluctuations in our quarterly or annual operating results;
publication of research reports by securities analysts about us, our competitors or our industry;
our failure or the failure of our competitors to meet analysts’ projections or guidance that we or our competitors may give to the market;
additions or departures of key personnel;
strategic decisions by us or our competitors, such as acquisitions, divestitures, spin-offs, joint ventures, strategic investments or changes in business strategy;
the passage of legislation or other regulatory developments affecting us or our industry;
changes in legislation, regulation and government policy as a result of the U.S. presidential and congressional elections;
speculation in the press or investment community;
changes in accounting principles;
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sales of substantial amounts of our stock by current stockholders (including stock by insiders or 5% stockholders);
terrorist acts, acts of war or periods of widespread civil unrest;
natural disasters and other calamities; and
changes in general market and economic conditions.
In addition, broad market and industry factors may negatively affect the market price of our common stock, regardless of our actual operating performance, and factors beyond our control may cause our stock price to decline rapidly and unexpectedly. We are exposed to the impact of any global or domestic economic disruption that may occur..
In the past, securities class action litigation has often been initiated against companies following periods of volatility in their stock price. This type of litigation could result in substantial costs and divert our management’s attention and resources, and could also require us to make substantial payments to satisfy judgments or to settle litigation.
Your percentage ownership in us may be diluted by future issuances of capital stock, which could reduce your influence over matters on which stockholders vote.
Our board of directors has the authority, without action or vote of our stockholders, to issue all or any part of our authorized but unissued shares of common stock, including shares issuable upon exercise of options, or shares of our authorized but unissued preferred stock. Issuances of common stock or voting preferred stock would reduce your influence over matters on which our stockholders vote and, in the case of issuances of preferred stock, would likely result in your interest in us being subject to the prior rights of holders of that preferred stock.
Provisions in our charter documents and Delaware law may deter takeover efforts that may be beneficial to stockholder value.
Provisions in our certificate of incorporation and bylaws and Delaware law could make it harder for a third party to acquire us, even if doing so might be beneficial to our stockholders. These provisions include a classified board of directors and the ability of our board of directors to issue preferred stock without stockholder approval that could be used to dilute a potential hostile acquiror. Our certificate of incorporation imposes some restrictions on mergers and other business combinations between us and any holder of 15% or more of our outstanding common stock other than INEOS Limited and investment funds affiliated with CCMP, Capital Advisors, L.P. (“CCMP”), one of our former stockholders. As a result, you may lose your ability to sell your stock for a price in excess of the prevailing market price due to these protective measures, and efforts by stockholders to change the direction or management of the company may be unsuccessful.
Our certificate of incorporation designates courts in the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.
Our certificate of incorporation provides that, subject to limited exceptions, the Court of Chancery of the State of Delaware is the sole and exclusive forum for:
any derivative action or proceeding brought on our behalf;
any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders;
any action asserting a claim against us arising pursuant to any provision of the General Corporation Law of the State of Delaware, our certificate of incorporation or our bylaws;
any action to interpret, apply, enforce or determine the validity of our certificate of incorporation or bylaws; or
any other action asserting a claim against us that is governed by the internal affairs doctrine (each, a “Covered Proceeding”).
In addition, our certificate of incorporation provides that if any action the subject matter of which is a Covered Proceeding is filed in a court other than the specified Delaware courts without the approval of our board of directors (each, a “Foreign Action”), the claiming party will be deemed to have consented to (i) the personal jurisdiction of the
36


specified Delaware courts in connection with any action brought in any such courts to enforce the exclusive forum provision described above and (ii) having service of process made upon such claiming party in any such enforcement action by service upon such claiming party’s counsel in the Foreign Action as agent for such claiming party.
Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and to have consented to these provisions. These provisions may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and employees. Alternatively, if a court were to find these provisions of our certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business and financial condition.
We may not pay additional dividends on our common stock and, consequentially, you may not receive any return on investment unless you sell your common stock for a price greater than that which you paid for it.
Although we paid special cash dividends in December 2020 and August 2021, our board of directors may decide to retain future earnings, if any, for future operations, expansion and debt repayment and may not pay any special or regular dividends for the foreseeable future. Any decision to declare and pay special or regular dividends in the future will be made at the discretion of our board of directors and will depend on, among other things, our results of operations, financial condition, cash requirements, contractual restrictions and other factors that our board of directors may deem relevant. In addition, our ability to pay dividends may be limited by covenants of any existing and future outstanding indebtedness we or our subsidiaries incur, including our credit facilities and outstanding notes. See “Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.” As a result, you may not receive any return on an investment in our common stock unless you sell your common stock for a price greater than that which you paid for it.
General Risk Factors
Significant trade developments stemming from the U.S. administration, U.S. courts’ or the United Kingdom’s exit from the European Union could have an adverse effect on us.
The United States has in recent years renegotiated a number of trade agreements, such as the United States-Mexico-Canada Agreement (“USMCA”), imposed tariffs on goods imported from China and certain other countries, and increasingly levied sanctions and export controls on China and other countries. All of these actions have resulted in retaliatory action, including retaliatory tariffs and other restrictions by China and other countries. These changes, as well as any other changes in social, political, regulatory and economic conditions, or further changes to foreign or domestic laws and policies governing foreign trade (including export, import and sanctions), manufacturing and development and foreign direct investment in the territories and countries where we or our customers operate could adversely affect our operating results and our business.
Additionally, in June 2016, the United Kingdom held a referendum and voted in favor of leaving the European Union and, on January 31, 2020, the United Kingdom exited the European Union and the implementation period or transition period ended on December 31, 2020. This referendum and exit has created political and economic uncertainty, particularly in the United Kingdom and the European Union, and this uncertainty may last for years. Our business could be affected during this period of uncertainty, and perhaps longer, by the impact of the United Kingdom’s referendum and exit. In addition, our business could be negatively affected by new trade agreements between the United Kingdom and other countries, including the United States, and by the possible imposition of trade or other regulatory barriers in the United Kingdom. These possible negative impacts, and others resulting from the United Kingdom’s withdrawal from the European Union, may adversely affect our customers’ businesses and our operating results.
If we lose certain key personnel or are unable to hire additional qualified personnel, we may not be able to execute our business strategy and our business could be adversely affected.
Our success depends, in part, upon the continued services of our highly skilled personnel involved in management, research, production and distribution and, in particular, upon the efforts and abilities of our key officers. Although we believe that we are adequately staffed in key positions, we may not be able to retain such personnel on acceptable terms or at all, and such personnel may seek to compete with us in the future. If we lose the service of any of our key personnel, we may not be able to hire replacements with the same level of industry experience and knowledge necessary
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to execute our business strategy, which in turn could have a material adverse effect on our business, financial condition, results of operations or cash flows.
We depend on good relations with our workforce, and any significant disruptions could adversely affect our operations.
As of December 31, 2023, we had 911 employees worldwide, approximately 44% of which were represented by a union, works council or other employee representative body. As of December 31, 2023, 137 of our U.S. unionized employees were covered under collective bargaining agreements that will expire on or before December 30, 2024. Failure to reach agreement with any of our unionized work groups regarding the terms of their collective bargaining agreements or annual pay increases may result in a labor strike, work stoppage or slowdown. In addition, a large number of our employees are employed in countries in which employment laws provide greater bargaining or other rights to employees than the laws of the United States. Such employment rights require us to work collaboratively with the legal representatives of the employees to effect any changes to labor arrangements. For example, many of our employees in Europe are represented by works councils that must approve any changes in conditions of employment, including salaries, benefits and staff changes, and may impede efforts to restructure our workforce. Although we believe that we have a good working relationship with our employees, a strike, work stoppage or slowdown by our employees or a dispute with our employees could result in a significant disruption to our operations or higher ongoing labor costs. In addition, our ability to make adjustments to control compensation and benefit costs, or otherwise adapt to changing business needs, may be limited by the terms and duration of our collective bargaining agreements.

We are subject to certain risks related to litigation filed by or against us, as well as administrative and regulatory proceedings, and adverse results may harm our business.
We cannot predict with certainty the cost of defense, the cost of prosecution or the ultimate outcome of litigation and other administrative and regulatory proceedings filed by or against us, including remedies or damage awards, and how adverse results in any litigation or other administrative and regulatory proceedings may materially harm our business. Litigation and other administrative and regulatory proceedings may include, but are not limited to, actions relating to intellectual property, commercial arrangements, environmental, health and safety matters, joint venture agreements, labor and employment matters, domestic and foreign antitrust matters or other harms resulting from the actions of individuals or entities outside of our control. In the case of intellectual property litigation and proceedings, adverse outcomes could include the cancellation, invalidation or other loss of material intellectual property rights used in our business and injunctions prohibiting our use of our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds that are subject to third-party patents or other third-party intellectual property rights. Litigation based on environmental matters or exposure to hazardous substances in the workplace or from our products could result in significant liability for us. For example, we are currently subject to various asbestos premises liability claims that relate to a contractor exposure to asbestos contained in certain building materials at our sites. Furthermore, our international operations expose us to potential administrative and regulatory proceedings in foreign jurisdictions. Adverse outcomes in any of the foregoing could have a material adverse effect on our business.
If we fail to maintain effective internal control over financial reporting and effective disclosure controls and procedures, we may not be able to accurately report our financial results in a timely manner or prevent fraud, which may adversely affect investor confidence in our company.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, as amended, our management is required to report on, and our independent registered public accounting firm is required to attest to, the effectiveness of our internal control over financial reporting. This assessment includes disclosure of any material weakness identified by our management in our internal control over financial reporting. In addition, we are required to comply with the SEC’s rules implementing Section 302 of the Sarbanes-Oxley Act, which requires management to certify financial and other information in our quarterly and annual reports, and we are required to disclose significant changes made in our internal controls and procedures on a quarterly basis.
If we identify a material weakness in our internal control over financial reporting, we may not be able to remediate the material weakness identified in a timely manner or maintain all of the controls necessary to remain in compliance with our reporting obligations. If we are unable to assert that our internal control over financial reporting is effective, or if our independent registered public accounting firm is unable to express an unqualified opinion as to the effectiveness of our internal control over financial reporting in future periods, investors may lose confidence in the accuracy and completeness of our financial reports, the market price of our common stock could be negatively affected, and we could
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become subject to investigations by the New York Stock Exchange, on which our securities are listed, the SEC or other regulatory authorities, which could require additional financial and management resources.
Regulations related to conflict minerals could adversely impact our business.
The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 contains provisions to improve transparency and accountability concerning the supply of certain minerals, known as conflict minerals, originating from the Democratic Republic of Congo (the “DRC”) and adjoining countries. The SEC requires annual disclosure and reporting requirements for those companies who use conflict minerals mined from the DRC and adjoining countries in their products. We incur costs associated with complying with these disclosure requirements, including for diligence to determine the sources of conflict minerals used in our products and other potential changes to products, processes or sources of supply as a consequence of such verification activities. These rules could adversely affect the sourcing, supply and pricing of materials used in our products. As there may be only a limited number of suppliers offering “conflict free” conflict minerals, we cannot be sure that we will be able to obtain necessary conflict minerals from such suppliers in sufficient quantities or at competitive prices.
ITEM 1B.    UNRESOLVED STAFF COMMENTS.
None.
ITEM 1C.    CYBERSECURITY.
Risk Management and Strategy
The Company has adopted processes designed to identify, assess and manage material risks from cybersecurity threats, which are integrated into the Company’s overall risk management systems and processes. Those processes include response to and an assessment of internal and external threats to the security, confidentiality, integrity and availability of our data and information systems, along with other material risks to our operations. The Company references the National Institute of Standards and Technology Cybersecurity Framework to help identify, assess, and manage cybersecurity risks and has adopted and tested a formal cybersecurity incident response plan. As part of our risk management process, the Company also engages third-party providers to conduct periodic internal and external penetration testing and maturity assessments. The Company stores data on premise and in cloud environments, with security appropriate to the data involved and has adopted controls around, among other things, access and acceptable use, backup and recovery and vendor risk assessment.
Our cybersecurity program is managed by the Cyber Incident Response Team (the “CIRT”), which is led by the Global IT Director, System Infrastructure Manager and the Network Infrastructure Manager, each with over 20 years of experience in IT. The CIRT serves as the core team responsible for managing the enterprise-wide cybersecurity policy, maintenance and compliance across all platforms. The CIRT is responsible for the detection and initial assessment of potential cybersecurity threats and incidents. The CIRT classifies detected cyber incidents to allow prioritization, response and escalation. Incidents are documented for internal reporting processes and regularly shared with senior management.
In the event of a potential cybersecurity incident, the CIRT will conduct an assessment to determine the nature and scope of the incident and manages the incident in accordance with our incident response plan until the incident is contained and resolved. The CIRT will document findings and make them available to the Disclosure Committee, which includes cross functional senior management representation from information technology, legal, finance, investor relations and business segments. The Disclosure Committee, in conjunction with third-party experts, including outside legal counsel, is responsible for assessing the materiality of any cybersecurity incident and coordinating external communications and disclosures, including with the Securities and Exchange Commission.
On a quarterly basis, our employees, contractors, and other users of the Company’s systems and networks are required to take cybersecurity training. The training is designed to provide employees and contractors with a baseline understanding of cybersecurity fundamentals to prevent security breaches and safely identify potential threats. These trainings are administered through a collaboration with third-party services and systems and address various topics, including how to handle sensitive and personal information, physical security of intellectual property, how to identify phishing attempts, reducing our risk to being phished and how to improve cybersecurity intelligence while working from home.
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As of December 31, 2023, we are not aware of any cybersecurity threats that have materially affected or are reasonably likely to materially affect the Company's business strategy, results of operations, or financial condition, although we may be materially affected in the future by such risks or future material incidents. See “Risk Factors—Risks Related to Our Business Operations—Disruption, failure or cyber security breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations” for additional information regarding cybersecurity risks.
Governance
Roles and Responsibilities
Cybersecurity is an important part of our risk management processes and an area of focus for Ecovyst’s management and Board of Directors. We continue to invest in cybersecurity and the resiliency of our networks and to enhance our internal controls and processes, which are designed to help protect our systems and infrastructure and the information they contain.
Our Board is actively involved in the assessment, oversight and management of the material risks that could affect the Company. The Board carries out its risk oversight and management responsibilities by monitoring risk directly as a full Board and, where appropriate, through its committees. The Board has delegated to the Audit Committee the responsibility to oversee the integrity of the Company’s information technology and cybersecurity risks and to assess the risks and incidents relating to cybersecurity threats. While our Board and Audit Committee oversee cybersecurity risk, management, through the CIRT, is responsible for the implementation and management of cybersecurity risk management systems and processes and for the communication of incidents to senior management and the Audit Committee.
The CIRT meets with the CEO and other members of our senior management on a quarterly basis and meets with the Audit Committee at least annually. Additionally, the Audit Committee regularly meets with members of the Company’s internal audit function to discuss risk management activities, compliance, best practices, and other related matters.
ITEM 2.    PROPERTIES.
Our operating headquarters are located in Malvern, Pennsylvania and our primary research and development facility is in Conshohocken, Pennsylvania. As of December 31, 2023, we had ten manufacturing facilities in two countries. We also had five administrative facilities and two research and development facilities located in three countries. Our joint ventures operated out of two facilities located in two countries.
The table below presents summary information regarding our principal manufacturing facilities that we own as of December 31, 2023.
LocationSegment
Baton Rouge, Louisiana, United StatesEcoservices
Baytown, Texas, United StatesEcoservices
Dominguez, California, United StatesEcoservices
Delfzijl, The Netherlands(1)
Advanced Materials & Catalysts
Hammond, Indiana, United StatesEcoservices
Houston, Texas, United StatesEcoservices
Kansas City, Kansas, United States(1)
Advanced Materials & Catalysts
Martinez, California, United StatesEcoservices
West Orange, Texas, United StatesEcoservices
Portland, Oregon, United StatesEcoservices
(1)    We lease a portion of the site to the Zeolyst Joint Venture.
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ITEM 3.    LEGAL PROCEEDINGS.
From time to time we may be subject to various legal claims and proceedings incidental to the normal conduct of business, relating to such matters as personal injury, product liability and warranty claims, waste disposal practices, release of chemicals into the environment and other matters that may arise in the ordinary course of our business. We currently believe that there is no litigation pending that is likely to have a material adverse effect on our business. Regardless of the outcome, legal proceedings can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.
ITEM 4.    MINE SAFETY DISCLOSURES.
Not applicable.
PART II
ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.
Market Information, Holders and Dividends
Our common stock trades on the New York Stock Exchange (“NYSE”) under the symbol “ECVT”. As of February 23, 2024, there were 11 shareholders of record of our common stock. A substantially greater number of holders of our common stock hold their shares in “street name” through banks, brokers and other financial institutions.
We have not and do not currently intend to pay regular dividends on our common stock in the foreseeable future. The declaration and payment of any future dividends by our Board of Directors is subject to compliance with the covenants contained in the agreements governing our credit facilities, applicable law and other considerations. See Note 16 to our consolidated financial statements included in this Form 10-K for information regarding covenant restrictions on the payment of dividends under our debt agreements.
Stock Performance Graph
The graph below shows the cumulative total shareholder return of our common stock for the period from December 31, 2018 to December 31, 2023 as compared to the cumulative total return of the Russell 2000 Total Return Index and the S&P 1500 Specialty Chemicals Index, assuming an investment of $100 made at the respective closing prices on December 31, 2018. The information contained in the graph below is furnished and therefore not to be considered “filed” with the SEC, and is not incorporated by reference into any document that incorporates this Form 10-K by reference.

1570


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12/31/201812/31/201912/31/202012/31/202112/31/202212/31/2023
ECVT (formerly PQG)$100 $116 $110 $98 $85 $93 
Russell 2000100 126 151 173 138 161 
SP 1500 Spec Chem100 118 138 176 132 152 
Issuer Purchases of Equity Securities
The following table contains information about purchases of our common stock during the fourth quarter of 2023.
Total Number of
Shares of Common Stock
Purchased as Part of
Publicly Announced
Plan or Programs
Maximum Number
(or Dollar Value) of
Shares of Common Stock
that May Yet Be
Purchased Under the
Plans or Programs (3)
Total Number of
Shares of Common
Stock Purchased (1)
Average Price
Paid per Share of
Common Stock (2)
October 1, 2023 — October 31, 2023— $— $234,592 
November 1, 2023 — November 30, 2023— $— $234,592 
December 1, 2023 — December 31, 2023— $— $234,592 
Total— 
2022 Stock Repurchase Program
(1)    During the three months ended December 31, 2023, the Company did not repurchase shares on the open market or accrue excise tax related to these repurchases, net of shares issued under the Company’s equity incentive program. As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
(2)     Excludes brokerage commissions and other costs of execution.    
(3)    In April 2022, our Board of Directors approved a stock repurchase program that authorized the Company to purchase up to $450 million of the Company’s common stock over the four-year period from the date of approval. This program is expected to be funded using cash on hand and cash generated from operations. We primarily expect to conduct the repurchase program through negotiated transactions with the Company’s equity sponsors, as well as through open market repurchases or other means, including through Rule 10b-18 trading plans or through the use of other techniques such as accelerated share repurchases. The actual timing, number and nature of shares repurchased will depend on a variety of factors, including stock, price, trading volume, and general business and market conditions. The repurchase program does not obligate us to acquire any number of shares in any specific period or at all and may be amended, suspended or discontinued at any time at our discretion.
On August 16, 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA imposes a 15% corporate alternative minimum tax for certain large corporations with average annual adjusted financial statement income in excess of $1 billion for tax years beginning after December 31, 2022, levies a 1% excise tax on net stock repurchases after December 31, 2022, and provides tax incentives to promote clean energy. Historically the Company has made discretionary share repurchases under its share repurchase programs.
Tax Withholdings
(1)    In connection with the vesting of restricted stock awards, restricted stock units and performance stock units, shares of common stock may be delivered to the Company by employees to satisfy withholding tax obligations at the instruction of the employee award holders. These transactions when they occur, are accounted for as stock repurchases by the Company, with the shares returned to treasury stock at a cost representing the payment by the Company of the tax obligations on behalf of the employees in lieu of shares for the vesting unit. There were no such transactions during the three months ended December 31, 2023.
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ITEM 6.    [Reserved]
ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
Overview
We are a leading integrated and innovative global provider of advanced materials, specialty catalysts and services. We believe that our products and services contribute to improving the sustainability of the environment.
We conduct operations through two reporting segments: (1) Ecoservices and (2) Advanced Materials & Catalysts (including our 50% interest in the Zeolyst Joint Venture).
Ecoservices: We are a leading provider of sulfuric acid recycling to the North American refining industry for the production of alkylate, an essential gasoline component for lowering vapor pressure and increasing octane to meet stringent gasoline specifications and fuel efficiency standards. We are also a leading North American producer of high quality and high strength virgin sulfuric acid for industrial and mining applications. We also provide chemical waste handling and treatment services, as well as ex-situ catalyst activation services for the refining and petrochemical industry.
Advanced Materials & Catalysts: We are a global supplier of finished silica catalyst, catalyst supports and functionalized silicas necessary to produce high performing plastics and to enable sustainable chemistry. This segment includes our 50% interest in the Zeolyst Joint Venture, where we are a leading global supplier of zeolites used for catalysts that support the production of sustainable fuels, remove nitrogen oxides from diesel engine emissions and are broadly applied in refining and petrochemical processes.
Effective November 28, 2023, the Company renamed the Catalyst Technologies segment to Advanced Materials & Catalysts. Beginning with the year ended December 31, 2023, the segment results and disclosures included in the Company’s consolidated financial statements reflect the new segment name for all periods presented. This change to the Company’s segment name does not change the Company’s consolidated balance sheets, statements of income or cash flows for the prior periods or the way the Company’s chief operating decision maker (“CODM”) evaluated the business.
In 2023, we served global customers across many end uses and, as of December 31, 2023, operated out of ten strategically located manufacturing facilities.
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P. Effective on August 1, 2021, we completed the sale of our Performance Chemicals business to Sparta Aggregator L.P., a partnership with Koch Minerals & Trading, LLC and Cerberus Capital Management, L.P. The results of operations, financial condition, and cash flows for the Performance Materials and Performance Chemicals businesses are presented herein as discontinued operations for the 2022 and 2021 periods presented. Refer to Note 4 of our consolidated financial statements for additional information.
Economic Effects on our Business and Results
We continue to monitor the developments in Russia and Ukraine, as well as the related economic sanctions and export controls imposed on certain industry sectors. Although the current conflict has created global economic and political uncertainties and affected certain supply chain disruptions, we do not believe we have significant exposure in those countries. We have no operations in Russia or Ukraine. We had no sales to customers in Ukraine and Russia in December 31, 2023 and our sales to a customer in Russia were immaterial for the year ended December 31, 2022 and 2% for the year ended December 31, 2021. We also did not make any purchases from suppliers in Russia or Ukraine. As Russia’s invasion of Ukraine continues to unfold, we will continue to monitor compliance with sanctions imposed by the U.S. government and other countries.
We continue to monitor the developments in the Middle East. Although the Company experienced shipment delays, the impact remained immaterial on our business.
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2022 Stock Repurchase Program
On April 27, 2022, the Board approved a stock repurchase program that authorized the Company to purchase up to $450 million of the Company’s common stock over the four-year period from the date of approval. During the year-ended December 31, 2023, the Company repurchased 541,494 shares on the open market at an average price of $9.85 per share, for a total of $5.3 million, excluding brokerage commissions and accrued excise tax. Additionally, in connection with secondary offerings of the Company’s common stock in March and May 2023, the Company repurchased 7,000,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $10.48 per share concurrently with the closing of the offerings, for a total of $73.4 million, excluding accrued excise tax.
As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
During the year-ended December 31, 2022, the Company repurchased 1,970,763 shares on the open market at an average price of $9.82 per share, for a total of $19.4 million, excluding brokerage commissions. Additionally, in connection with secondary offerings of the Company’s common stock in August and November 2022, the Company repurchased 14,500,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $8.09 per share concurrently with the closing of the offerings, for a total of $117.3 million.
Basis of Presentation
Our zeolite catalysts product group operates through the Zeolyst Joint Venture, which we account for as an equity method investment in accordance with accounting principles generally accepted in the United States (“GAAP”). We do not record sales by the Zeolyst Joint Venture as revenue and such sales are not consolidated within our results of operations. However, net income and Adjusted EBITDA reflects our share of the earnings of the Zeolyst Joint Venture that have been recorded as equity in net income from affiliated companies in our consolidated statements of income and includes Zeolyst Joint Venture adjustments on a proportionate basis based on our 50% ownership interest.
Key Performance Indicators
Adjusted EBITDA and Adjusted Net Income
Adjusted EBITDA and adjusted net income are financial measures that are not prepared in accordance with GAAP and that we use to evaluate our operating performance, for business planning purposes and to measure our performance relative to that of our competitors. Adjusted EBITDA and adjusted net income are presented as key performance indicators as we believe these financial measures will enhance a prospective investor’s understanding of our results of operations and financial condition. EBITDA consists of net income (loss) attributable to continuing operations before interest, taxes, depreciation and amortization. Adjusted EBITDA consists of EBITDA adjusted for (i) non-operating income or expense, (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) and EBITDA that we do not consider indicative of our ongoing operating performance, and (iii) depreciation, amortization and interest of our 50% share of the Zeolyst Joint Venture. Adjusted net income consists of net income (loss) adjusted for (i) non-operating income or expense and (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) that we do not consider indicative of our ongoing operating performance. We believe that these non-GAAP financial measures provide investors with useful financial metrics to assess our operating performance from period-to-period by excluding certain items that we believe are not representative of our core business.
You should not consider Adjusted EBITDA or adjusted net income in isolation or as alternatives to the presentation of our financial results in accordance with GAAP. The presentation of Adjusted EBITDA and adjusted net income financial measures may differ from similar measures reported by other companies and may not be comparable to other similarly titled measures. In evaluating Adjusted EBITDA and adjusted net income, you should be aware that we are likely to incur expenses similar to those eliminated in this presentation in the future and that certain of these items could be considered recurring in nature. Our presentation of Adjusted EBITDA and adjusted net income should not be construed as an inference that our future results will be unaffected by unusual or nonrecurring items. Reconciliations of Adjusted EBITDA and adjusted net income to GAAP net income (loss) are included in the results of operations discussion that follows for each of the respective periods.
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Key Factors and Trends Affecting Operating Results and Financial Condition
Sales
Overall, our Ecoservices and Advanced Materials & Catalysts segments continued to benefit from demand trends for our products and services in the industries we serve. While sales of our virgin sulfuric acid into the production of nylon intermediates and sales of polyethylene catalysts weakened in the second half of 2023, demand across the balance of product categories, end-uses and customers throughout 2023 remained positive. Contractual pass-through mechanisms and targeted price increases have served to mitigate the adverse impacts of inflationary pressures in 2023, including higher variable costs on our businesses and supply chain constraints, including limited availability and higher costs for energy, logistics, and other raw materials.
Cost of Goods Sold
Cost of goods sold consists of variable product costs, fixed manufacturing expenses, depreciation expense and freight expenses. Variable product costs include all raw materials, energy and packaging costs that are directly related to the manufacturing process. Fixed manufacturing expenses include all plant employment costs, manufacturing overhead and periodic maintenance costs.
The primary raw materials for our Ecoservices segment include spent sulfuric acid, sulfur, acids, bases (including sodium hydroxide, or “caustic soda”), and certain metals. Spent sulfuric acid for our Ecoservices segment is supplied by customers for a nominal charge as part of their contracts. The primary raw materials used in the manufacture of products in our Advanced Materials & Catalysts segment include sodium silicate and cesium hydroxide. During the second quarter of 2023, inflationary pressures began to ease, which reduced the cost of goods for sulfur, energy, logistics and other raw materials.
Most of our Ecoservices contracts feature take-or-pay volume protection and/or quarterly price adjustments for commodity inputs, labor, the Chemical Engineering Index (U.S. chemical plant construction cost index) and natural gas. Over 80% of our Ecoservices segment sales for the year ended December 31, 2023 were under contracts featuring quarterly price adjustments. The price adjustments generally reflect actual costs for producing acid and tend to protect us from volatility in labor, fixed costs and raw material pricing. The take-or-pay volume protection allows us to cover fixed costs through intermittent, temporary production issues at customer refineries.
While natural gas is not a direct feedstock for any product, natural gas powered machinery and equipment are used to heat raw materials and create the chemical reactions necessary to produce end-products. We maintain multiple suppliers wherever possible and structure our customer contracts when possible to allow for the pass-through of raw material, labor and natural gas costs.
Joint VenturesEnvironmental Regulations
We have entered into several long-standing joint venturesare subject to supplement our businessesextensive, evolving and accessincreasingly stringent national, state and/or local environmental laws and regulations, which address, among other geographic locations, minimize costs and accelerate growth in areas we believe have significant business potential, with the most significant of these joint ventures includingthings, the following:
Zeolyst Joint Venture. The Zeolyst Joint Venture is a long-standing partnership with Shell Catalysts & Technologies, an affiliateemissions to the air;
discharges to soils and surface and subsurface waters;
other releases into the environment;
prevention and remediation of Royal Dutch Shell plc.releases into the indoor or “Shell”, that dates back to 1988outdoor environment;
generation, handling, storage, transportation, treatment and is focused on the development, manufacture and saledisposal of zeolite-containing catalysts through manufacturing facilities located in Kansas and the Netherlands. We combine our expertise in zeolite supply and technology with our partner’s expertise in global refinery catalyst sales and technology. We have a 50% ownership stakewaste materials;
maintenance of safe conditions in the Zeolyst Joint Venture. We supply sodium silicate from our Performance Chemicals segment to the Zeolyst Joint Venture to make specialty zeolites, which are used as precursors in emission control and custom catalysts. We also produce specialty zeolites that are precursors for the production of hydrocracking catalyst and other refinery and petrochemical catalysts that are used by our other segments and sold to third parties. We manage the production of these specialty zeolites due to our expertise in zeolite production. These catalysts include aromatic catalysts that upgrade aromatic by-product streams, dewaxing catalysts that improve lube oil performance and diesel cold flow performance, and paraffin isomerization catalysts that upgrade olefins to high octane gasoline blending components for refinery and petrochemical customers.workplace;
PQ Holdings Mexicana S.A. de C.V. PQ Holdings Mexicana was established in 2000 as a joint venture with Solvay Alkalis, Inc. for the manufacture, marketingregistration and saleevaluation of various chemicals, including sodium silicate, through manufacturing facilities in Tlalnepantla and Guadalajara, Mexico. We have an 80% ownership stake in PQ Holdings Mexicana.chemicals;
Researchproduction, handling, labeling or use of chemicals used or produced by us; and Development
We benefit fromstewardship of products after manufacture.
Again, we apply the highly-skilled technical capabilitiesprinciples of the Environmental Management standard of the International Organization for Standardization (ISO 14001) at our employees dedicated to new product development. We operate four research and developmentfacilities throughout the world. For chemical facilities in the United States, Canada,we also adhere to the Responsible Care RC14001 Technical Specifications of the American Chemistry Council.
We maintain policies and procedures to monitor and control HSE risks, and to monitor compliance with applicable state, national, and international HSE requirements. We have a strong HSE organization. We maintain a staff of professionals who are responsible for environmental, safety, health and product regulatory compliance. We have implemented a corporate audit program for all of our facilities. However, we cannot provide assurance that we will be in full compliance at all times with all applicable environmental laws and regulations. We expect that stringent environmental regulations will continue to be imposed on us and our industry in general. Evolving chemical regulation programs throughout the world could impose testing requirements or restrictions on our chemical raw materials and products.
Environmental Remediation
Environmental laws and regulations require mitigation or remediation of the effects of the disposal or release of chemical substances. Under some of these regulations, as the current or former owner or operator of a property, we could be held liable for the costs of removal or remediation of hazardous substances on or under the property, without regard to whether we knew of or caused the contamination, and regardless of whether the practices that resulted in the contamination were permitted at the time they occurred. Many of our current or former production sites have an extended history of industrial use, and it is impossible to predict precisely what effect these laws and regulations will have on us in the future. Soil and groundwater contamination requiring investigation and remediation has been discovered at some of the sites, and might occur or be discovered at other sites. Several active and former facilities currently are undergoing investigation and remediation, including sites in Dominguez, CA and Martinez, CA.
Environmental Programs
We have comprehensive HSE compliance, auditing and management programs in place to assist in our compliance with applicable regulatory requirements and with internal policies and procedures, as appropriate. Each facility has developed and implemented specific critical occupational health, safety, environmental, security and loss control programs.
We also have implemented a HSE organizational structure with executive committee level leadership and dedicated environmental experts. We have a Global Director of Health, Safety and Process Safety Management as well as Regional HSE Specialists and Managers who are embedded in the field and provide HSE expertise and support to operating sites. Certain, larger sites may have dedicated environmental or safety personnel.
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Product Safety and Product Stewardship
We have established a Product Safety and Product Stewardship management system that is compliant with the RC14001 technical specification and is supported by a highly skilled Director of Product Stewardship, who is a “Registration, Evaluation, Authorisation and Restriction of Chemicals” (“REACH”) Specialist. We conduct Product Stewardship reviews as part of new product development and routinely evaluate product safety risk for raw materials, intermediates, and products.
As a chemical company, we are subject to extensive and evolving regulations regarding the manufacturing, processing, distribution, importing, exporting, and labeling of our products and raw materials. In the European Union, the REACH regulations came into effect in 2007, with implementation rolling out over time. Registered chemicals then can be subject to further evaluation and potential restrictions. Our high-volume chemicals have been registered under REACH; lower-volume chemicals (mainly catalysts) were registered by the applicable 2018 deadline. To date, no further testing has been required.
Since the promulgation of REACH, other countries have enacted or are in the process of implementing similar comprehensive chemical regulations. These programs include the Korea REACH law, which is requiring registration and potential testing of chemicals, and similar programs implemented in the UK, Taiwan, Turkey, India, and elsewhere. In the US, all pertinent chemicals have been designated as “active” under the US Frank R. Lautenberg Chemical Safety for the 21st Century Act. At this time, none have been designated as chemicals which the EPA will prioritize and evaluate for regulation. Based on our chemicals and the various regulations promulgated to date, we do not anticipate costly testing requirements nor severe restrictions, but cannot guarantee that we will not be subject to requirements for our products or raw materials that could materially affect our operations. In particular, some of our products might be characterized as nanomaterials and then be subject to evolving, new nanomaterial regulations.
We remain alert for any regulatory changes which may impact our products and their end uses.
Available Information
Our website address is www.ecovyst.com. We make available free of charge through our website our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended (“Exchange Act”), as well as reports on Forms 3, 4 and 5 filed pursuant to Section 16 of the Exchange Act, as soon as reasonably practicable after such documents are electronically filed with, or furnished to, the Securities and Exchange Commission (“SEC”). The SEC maintains an Internet website, http://www.sec.gov, which contains reports, proxy and information statements, and other information regarding our Company and other issuers that file electronically with the SEC. The information on our website is not, and shall not be deemed to be, a part of this report or incorporated into any other filings we make with the SEC.
Our Corporate Governance Guidelines, Code of Business Conduct and the charters of the Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and Health, Safety and Environment Committee of our Board of Directors are also available on our website and are available in print to any shareholder upon request by writing to Ecovyst Investor Relations, 300 Lindenwood Drive, Malvern, PA 19355. In accordance with SEC rules, we intend to disclose any amendment (other than any technical, administrative or other non-substantive) to the Code of Business Conduct, or any waiver of any provision thereof with respect to any of our executive officers, on our website within four business days following such amendment or waiver.
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ITEM 1A.    RISK FACTORS.
In addition to the other information contained in this Form 10-K, you should carefully consider the following risks that we believe are the material risks that we face. The risks described below could have a material adverse impact on our business, financial condition, cash flows and results of operations, and should be read together and in conjunction with the forward-looking statements and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in Item 7 of this Form 10-K, and our consolidated financial statements and the accompanying notes thereto.

Risks Related to Our Business Operations
As a global business, we are exposed to local business risks in different countries, which could have a material adverse effect on our financial condition, results of operations and cash flows.
We have operations in several countries, including manufacturing sites, research and development facilities, sales personnel and customer support operations. As of December 31, 2023, we operated ten manufacturing facilities. For the year ended December 31, 2023, our foreign subsidiaries accounted for 6% of our sales. Our operations are affected directly and indirectly by global regulatory, economic, political and social conditions, including:
new and different legal and regulatory requirements in local jurisdictions;
export duties or import quotas;
domestic and foreign customs and tariffs or other trade barriers, including the threat of escalating trade disputes that may result in higher tariffs and the imposition of trade sanctions against certain countries, persons and entities;
potential difficulties in staffing and labor disputes;
potential difficulties in managing and obtaining support and distribution for local operations;
increased costs of, and availability of, raw materials, energy, transportation or shipping;
credit risk and financial condition of local customers and distributors;
potential difficulties in protecting intellectual property rights;
risk of nationalization of private enterprises by foreign governments;
potential imposition of restrictions on investments;
the imposition of withholding taxes or other taxes or royalties on our income, or the adoption of other restrictions on foreign trade or investment, including currency exchange controls;
capital controls;
potential difficulties in obtaining and enforcing legal judgments in jurisdictions outside the United States;
potential difficulties in obtaining and enforcing relief in the United States against parties located outside the United States;
potential difficulties in enforcing agreements and collecting receivables;
risks relating to environmental, health and safety matters;
regional conflicts, such as the invasion of Ukraine by Russia and the conflict involving Israel and Hamas and potentially other countries in the Middle East;
risks relating to information security and cyber security events;
risks relating to epidemics and pandemics and effects therefrom; and
local political, economic and social conditions, including the possibility of hyperinflationary conditions and political instability in certain countries.
We may not be successful in developing and implementing policies and strategies to address the foregoing factors in a timely and effective manner at each location where we do business. Consequently, the occurrence of one or more of
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the foregoing factors could have a material adverse effect on our international operations or upon our financial condition, results of operations and cash flows.

Our operations and financial results have been and may continue to be adversely affected by general economic conditions.
We sell advanced materials, catalysts and services that are used in manufacturing processes and as components of, or ingredients in, other products and, as a result, our sales are correlated with and affected by fluctuations in the level of industrial production and manufacturing output and by fluctuations in general economic activity. Demand for the products we manufacture often depends on trends in demand in the end uses our customers serve. General economic conditions and macroeconomic trends, including economic recessions and inflation, could affect overall demand for our products and any overall decline in such demand could significantly reduce our sales and profitability. In addition, volatility and disruption in financial markets could adversely affect our sales and results of operations by limiting our customers’ ability to obtain the financing necessary to maintain or expand their own operations.
Unfavorable global economic conditions could adversely affect our business, financial condition, and results of operations.
Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. For example, during the past several years the global economy has experienced extreme volatility and disruptions, including significant volatility in commodity and market prices, including increasing energy prices, volatility in sulfur prices, declines in consumer confidence, declines in economic growth, supply chain interruptions, uncertainty about economic stability, record inflation globally, rising interest rates and the threat of recession. Unfavorable economic conditions could result in a variety of risks to our business, including demand and pricing for our products and difficulty in forecasting our financial results. A weak or declining economy also could strain our suppliers, possibly resulting in supply chain disruptions. In addition, inflation has increased our costs, which could impact our profitability. These and other economic factors could adversely impact our business and results of operations.
Exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows.
As a result of our international operations, for the year ended December 31, 2023, we generated 6% of our sales and associated expenses in currencies other than U.S. dollars. We incur currency transaction risk whenever we enter into either a purchase or sale transaction using a currency other than the local currency of the transacting entity. The main currencies to which we are exposed, besides the U.S. dollar, are the Euro and the British pound. The exchange rates between these currencies and the U.S. dollar have fluctuated significantly in recent years and may continue to do so in the future. In many cases, we sell exclusively in those jurisdictions and do not have the ability to mitigate our exposure to currency fluctuations through our operations. Accordingly, to the extent that we are unable to match sales made in such foreign currencies with costs paid in the same currency, exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows. In the past, we have experienced economic loss and a negative impact on earnings as a result of foreign currency exchange rate fluctuations and any future fluctuations may have similar impacts. We expect that the amount of our sales denominated in non-U.S. dollar currencies may increase in future periods. Given the volatility of exchange rates, there can be no assurance that we will be able to effectively manage our currency transaction risks or that any volatility in currency exchange rates will not have a material adverse effect on our financial condition or results of operations. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Quantitative and Qualitative Disclosures about Market Risk.”
Additionally, because our consolidated financial results are reported in U.S dollars, the translation of sales or earnings generated in other currencies into U.S. dollars can result in a significant increase or decrease in the amount of those sales or earnings in our financial statements, which also affects the comparability of our results of operations and cash flows between financial periods.
Our international operations require us to comply with anti-corruption laws, economic sanctions, export controls and similar laws and regulations of the U.S. government and various international jurisdictions in which we do business.
Doing business on a worldwide basis requires us and our subsidiaries to comply with the laws and regulations of the U.S. government and various international jurisdictions, and our failure to successfully comply with these laws and regulations may restrict our operations, trade practices, investment decisions and partnering activities and may expose us to liabilities. Such laws and regulations apply to companies, individual directors, officers, employees and agents.
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In particular, our international operations are subject to U.S. and foreign anti-corruption laws and regulations, such as the Foreign Corrupt Practices Act (“FCPA”) and the U.K. Bribery Act. For example, the FCPA prohibits us from providing anything of value to foreign officials for the purposes of influencing official decisions or obtaining or retaining business or otherwise obtaining favorable treatment, and requires us to maintain adequate record-keeping and internal accounting practices to accurately reflect our transactions. As part of our business, we may deal with state-owned business enterprises, the employees and representatives of which may be considered foreign officials for purposes of the FCPA. In addition, some of the international locations into which we sell our products lack a developed legal system and have elevated levels of corruption. As a result, we are exposed to corruption-related risk.
In addition, we are required to comply with applicable economic sanctions, export controls, and similar laws and regulations imposed by the U.S. government and other countries. These laws and regulations may restrict our business practices, or the counterparties or regions with which we can trade. In addition, these laws and regulations are subject to frequent change, and such changes may require us to adjust our business practices, including by ceasing business activities in newly sanctioned countries or regions or with newly sanctioned entities or individuals, or to modify our compliance program. For example, the invasion of Ukraine by Russia and the related sanctions, export controls or other actions that have been or may be initiated by nations—including the U.S., the European Union, the United Kingdom, and Russia—could disrupt or otherwise adversely impact our customers in those countries, as well as adversely impact our business or our supply chain, business partners or customers in other countries beyond Ukraine and Russia. Further, violations of these legal requirements are punishable by criminal fines and imprisonment, civil penalties, disgorgement of profits, injunctions, debarment from government contracts, loss of export privileges and other remedial measures.
We have established policies and procedures designed to assist us and our personnel in complying with applicable U.S. and international laws and regulations. These policies and procedures are codified in our Code of Conduct and other various policies. However, there can be no assurance that our policies and procedures will effectively prevent us from violating these laws and regulations in every transaction in which we may engage, and such a violation could subject us to governmental investigations and adversely affect our reputation, business, financial condition and results of operations.
Alternative technology or other changes in our customers’ products may reduce or eliminate the Netherlands. need for certain of our products.
Many of the products that we sell are used in manufacturing processes and/or to produce other products and, as a result, changes in our customers’ end products or processes or alternative technologies may enable our customers to reduce or eliminate consumption or use of our products. Additionally, shifting consumer preference could result in a significant reduction in the future use of fossil fuels, which would have a negative impact on our zeolite catalysts and Ecoservices businesses. If we are unable to respond appropriately to such new developments, such changes could seriously impair our ability to profitably market certain of our products.
Our new product development and research and development activitiesefforts may not succeed and our competitors may develop more effective or successful products.
The industries in which we operate are directed toward the development ofsubject to periodic technological changes and ongoing product improvements. In order to maintain our margins and remain competitive, we must successfully develop, manufacture and market new or improved products. As a result, we must commit substantial resources each year to new product research and improved products, processes, systems and applications for customers. Ourdevelopment. Ongoing investments in new product research and development teamcould result in higher costs without a proportional increase in revenues. Additionally, for any new product program, there is organizeda risk of technical or market failure, in which case we may need to support eachcommit additional resources to the program and may not be able to develop the new products needed to maintain our competitive position. Moreover, new products may have lower margins than the products they replace or may not successfully attract end users.
We also expect competition to increase as our competitors develop and introduce new and enhanced products. As such products are introduced, our products may become obsolete or our competitors’ products may be marketed more effectively. If we fail to develop new products, maintain or improve our margins with our new products or keep pace with technological developments, our business, financial condition, results of operations and cash flows will suffer.

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If we are unable to pass on increases in raw material prices, including natural gas, to our customers or to retain or replace our key suppliers, our results of operations and cash flows may be negatively affected.
We purchase significant amounts of raw materials, including precursor products in our Advanced Materials & Catalysts business and sulfur in our Ecoservices business, and we purchase significant amounts of natural gas to supply the energy required in our production process. The cost of these raw materials represents a substantial portion of our operating businessesexpenses and staffedour results of operations have been, and could in the future be, significantly affected by increases in the costs of such raw materials. In addition, we obtain a significant portion of our raw materials from certain key suppliers. If any of those suppliers is unable to meet its obligations under current or future supply agreements, we may be forced to pay higher prices to obtain the necessary raw materials. Furthermore, if any of the raw materials that we use become unavailable within the geographic area from which we currently source them, we may not be able to obtain suitable and cost-effective substitutes. Any interruption of supply or any price increase of raw materials could adversely affect our profitability.
While we attempt to match raw material price increases with experienced scientists, technical service representativescorresponding product price increases, our ability to pass on increases in the cost of raw materials to our customers is, to a large extent, dependent upon our contractual arrangements and process engineers with direct knowledgemarket conditions. There may be periods of time during which we are not able to recover increases in the cost of raw materials due to our contractual arrangements or weakness in demand for, or oversupply of, our products. This business groupSpecifically, timing differences between price adjustments of raw materials and customer-oriented team structure provides strong links betweenadjustments to our product developmentprices, which in many cases are adjusted quarterly or less often, have had and may continue to have a negative effect on our profitability. Even in periods during which raw material prices decline, we may suffer decreasing profits if customers seek relief in the form of lower sales prices or if the raw material price reductions occur at a slower rate than decreases in the selling prices of our products. Such volatility can result in commercial disputes with customers and suppliers with respect to interpretations of complex contractual arrangements, the adverse resolution of which could reduce our profitability.
In the past, we have entered into long-term supply contracts for certain of our raw materials. As these contracts expire, we may not be able to renegotiate or enter into new long-term supply contracts that will offer similar protection from price increases and other fluctuations on terms that are satisfactory to us or at all.
We face substantial competition in the industries in which we operate.
Our Advanced Materials & Catalysts segment primarily competes with other global producers in the petrochemicals and refining industries such as Grace, BASF, UOP, and Albemarle, as well as other niche competitors such as Tosoh, Axens, and Haldor Topsoe. In our Ecoservices segment, we compete in the North American refining services industry with competitors such as Chemtrade and Veolia. We believe that we typically compete on the basis of performance, product consistency, quality, reliability, and ability to innovate in response to customer demands.
Our competitors may improve their competitive position in our core end use applications by successfully introducing new products, improving their manufacturing functionsprocesses, expanding their capacity or manufacturing facilities or responding more effectively than we do to new or emerging technologies and changes in customer requirements. Some of our customer collaboration and specifications. These connections enablecompetitors may be able to lower prices for products that compete with our products if their costs are lower. In addition, consolidation among our competitors or customers may result in reduced demand for our products or make it more difficult for us to focuscompete. Some of our development on timelycompetitors’ financial, technological and relevant products forother resources may be greater than ours or they may have less debt than we do and, as a result, may be better able to withstand changes to industry conditions. The occurrence of any of these events could materially adversely affect our customers while remaining attentive to manufacturing considerations to enable us to produce new products profitablyfinancial condition and in a timely manner. Product development activities are organized into research and development projects thatresults of operations.
We are subject to regular reviewsthe risk of loss resulting from non-payment or non-performance by our customers.
Our credit procedures and policies may not be adequate to minimize or mitigate customer credit risk. Our customers may experience financial difficulties, including bankruptcies, restructurings and liquidations. These and other financial problems our customers may experience, as well as potential financial weakness in the industries in which we operate or general economic conditions, may increase our risk in extending trade credit to customers. A significant adverse change in a customer’s financial position could cause us to limit or discontinue business teams in orderwith such customer, require us to understandassume more credit risk relating to such customer’s receivables or limit our ability to collect accounts receivable from such customer, any of which could have a material adverse effect on our business, results of operations, financial condition and address our customers’ evolving needs and invest in our growth by prioritizing innovation driven by these identified needs. In addition, we hold senior-level project reviews to ensure best practices are shared and consistent metrics are used to determine a project’s merit and the size of the potential opportunity.liquidity.
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Table of Contents
Intellectual Property
We evaluaterely on a case-by-case basis how bestlimited number of customers for a meaningful portion of our business. A loss of one or more of these customers could adversely impact our profitability.
A loss of any significant customer, including a pipeline customer in our Ecoservices segment, or a decrease in the provision of products to use patents, trademarks, copyrights, trade secretsany significant customer could have an adverse effect on our business until alternative arrangements are secured. Any alternative arrangement to replace the loss of a customer could result in increased variable costs relating to product shipment. In addition, any new customer agreement we enter into may not have terms as favorable as those contained in our current customer agreements, which could have a material adverse effect on our business, financial condition and other available intellectual property protectionsresults of operations. For the year ended December 31, 2023, our top ten customers represented approximately 60% of our sales and one single customer represented 13% or $91.5 million of our sales in orderboth Ecoservices and Advanced Materials & Catalysts.
Refineries, which represent a sizable subset of our Ecoservices segment customer base, have undergone significant consolidation and additional consolidation is possible in the future. Such consolidation could further increase our reliance on a small number of customers and further increase our customers’ leverage over us, resulting in downward pressure on prices and an adverse effect on our profitability.
Multi-year customer contracts in our Ecoservices segment are subject to protectpotential early termination and such contracts may not be renewed at the end of their respective terms.
Many of the customer contracts in our Ecoservices segment are multi-year agreements. Sulfuric acid regeneration customer contracts are typically on five- to ten-year terms and virgin sulfuric acid customer contracts are typically on one- to five-year terms, with larger customers typically favoring longer terms. Excluding contracts with automatic evergreen provisions, approximately 20% of our sulfuric acid volume for the year ended December 31, 2023 was under contracts expiring at the end of 2024 or beyond. In addition, our sulfuric acid regeneration contracts with major refinery customers typically allow for termination with advance notice of one to two years. We cannot provide assurance that our existing contracts will not be subjected to early terminations or that our expiring contracts will be renewed at the end of their terms. If we receive a significant number of such contract terminations or experience non-renewals from key customers in our Ecoservices segment, our results of operations, financial condition and cash flows may be materially adversely affected.
Our quarterly results of operations are subject to fluctuations because the demand for some of our products and our critical investments in research and development, manufacturing and marketing. We focus on securing and maintaining patents for certain inventions such as composition-of-matter, while maintaining other inventions such as process improvements as trade secrets, derived from our market-based business model, in an effort to maximize the value of our product portfolio and manufacturing capabilities and reinforce our competitive advantage. Our policy is to seek appropriate intellectual property protection for significant product and process developments in the major areas where the relevant products are manufactured or sold. Patents may cover products, processes, intermediate products and product uses. Patents extend for varying periods in accordance with the date of patent application filing and the legal life of patents in the various countries in which the patents are registered. The protection afforded, which may also vary from country to country, depends upon the type of subject matter covered by the patent and the scope of the claims of the patent.
In most industrial countries, patent protection may be available for new substances and formulations, as well as for unique applications and production processes. However, given the geographical scope of our business and our continued growth strategy, there are regions of the world in which we do business or may do business in the future where intellectual property protection may be limited and difficult to enforce. Moreover, we monitor our competitors’ products and, if circumstances were to dictate that we do so, we would vigorously challenge the actions of others that conflict with our patents, trademarks and other intellectual property rights. We maintain appropriate information security policies and procedures reasonably designed to ensure the safeguarding of confidential information including, where appropriate, data encryption, access controls and employee awareness training.
We own or have rights to a number of patents relating to our products and processes. As of December 31, 2020, we owned 39 patented inventions in the United States, with approximately 286 patents issued in countries around the world and approximately 69 patent applications pending worldwide covering more than 11 additional inventions. As of December 31, 2020, we also had trademark rights in approximately 379 trademark registrations worldwide, including approximately 44 U.S. trademark registrations. We also have approximately 21 pending trademark applications, which include applications in the United States and worldwide. In addition to our registered and applied-for intellectual property portfolio, we also claim ownership of certain trade secrets and proprietary know-how developed by and used in our business. Including our joint ventures, we are party to certain arrangements whereby we license in the right to use certain intellectual property rights in connection with our business.
Seasonalityseasonal.
Our Refining ServicesEcoservices segment typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer months. Because of the seasonality of some of our product groups, the results for any one quarter are not necessarily indicative of the results that may be achieved for any other quarter or for the full year.
Our growth projects may result in significant expenditures before generating revenues, if any, which may materially and lower demandadversely affect our ability to implement our business strategy.
We have made and continue to make significant investments in each of our businesses. These projects require us to commit significant capital to, among other things, implement engineering plans and obtain the necessary permits before we generate revenues related to our investments in these businesses. Such projects may take longer to complete or require additional unanticipated expenditures and may never generate profits. If we fail to recover our investment, or these projects never become profitable, our ability to implement our business strategy may be materially and adversely affected.
We may be liable for damages based on product liability claims brought against us or our customers for costs associated with recalls of our or our customers’ products.
Even though we are generally an advanced materials and services supplier rather than a manufacturer of finished goods, the sale of our products involves the risk of product liability claims and voluntary or government-ordered product recalls. For example, certain of the products that we manufacture are used in chemical manufacturing processes in our customers’ manufacturing operations and are used in and around other chemical manufacturing facilities and other locations where personal injury or property damage may occur. While we attempt to protect ourselves from product liability claims and exposures through our adherence to standards and specifications, quality control and assurance and through contractual negotiations and provisions, there can be no assurance that our efforts will ultimately protect us from such claims. A product liability claim or voluntary or government-ordered product recall could result in substantial and unexpected expenditures, affect customer confidence in our products and divert management’s attention from other
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responsibilities. A product recall or successful product liability claim or series of claims against us in excess of our insurance coverage and for which we are not otherwise indemnified could have a material adverse effect on our business, financial condition, results of operations or cash flows. We have product liability insurance in amounts that we believe are adequate to cover this product liability risk. However, our insurance may not provide adequate coverage against all potential liabilities, including product recall liabilities. If a claim is brought against us, we might be required to pay legal and other expenses to defend the claim, as well as pay uncovered damage awards resulting from a claim brought successfully against us and these damages could be significant and have a material adverse effect on our financial condition. Furthermore, whether or not we are ultimately successful in defending any such claims, we might be required to direct significant financial and managerial resources to such defense and adverse publicity is likely to result.
We are required to comply with a wide variety of laws and regulations, and are subject to regulation by various federal, state and foreign agencies, and our failure to comply with existing and future regulatory requirements could adversely affect our financial condition, results of operations and cash flows.
We compete in industries in which we and our customers are subject to federal, state, local, international and transnational laws and regulations. Such laws and regulations are numerous and sometimes conflicting, and any future changes to such laws and regulations could adversely affect us.
In order to obtain regulatory approval for certain of our new products, we must, among other things, demonstrate to the relevant authority that the product is safe and effective for its intended uses and that we are capable of manufacturing the product in accordance with current regulations. The process of seeking approvals can be costly, time-consuming and subject to unanticipated and significant delays. Any delay in obtaining, or any failure to obtain or maintain, these approvals would adversely affect our ability to introduce new products and to generate sales from those products, and could have an adverse effect on our business, financial condition, results of operations or cash flows.
Our products, including the raw materials we handle, are subject to rigorous chemical registration and industrial hygiene regulations and investigation. There is risk that a key raw material, chemical or substance, or one of the end products of which our products are a part of or are utilized to make, may be recharacterized as having a toxicological or health-related impact on the environment, our customers or our employees. Industrial hygiene regulations are continually strengthened and if such recharacterization occurs, the relevant raw material, chemical or product may be banned or we may incur increased costs in order to comply with new requirements. Changes in industrial hygiene regulations also affect the marketability of certain of our products, and future regulatory changes may have a material adverse effect on our business.
New laws and regulations, and changes in existing laws and regulations, may become effective in the winter months.future and could prevent or inhibit the development, distribution and sale of our products, including, but not limited to, the imposition of additional compliance costs, seizures, confiscation, recall or monetary fines. For example, as discussed in more detail in “Business-Environmental Regulations” and “Business-Chemical Product Regulation,” we may be materially impacted by regulatory initiatives worldwide with respect to chemical product safety such as the 2016 amendments to the U.S. Toxic Substances Control Act, the E.U. REACH regulation, and/or similar regulations being enacted in other countries (e.g., China REACH; Korea REACH). Additionally, current or future U.S. administrations may seek to tighten current environmental standards and regulations, including, but not limited to, the Corporate Average Fuel Economy standards, which could have a material adverse effect on our sales into the clean fuels, emission control and other industries.
We are subject to extensive environmental, health and safety regulations and face various risks associated with potential non-compliance or releases of hazardous materials.
Like other chemical companies, our operations and properties are subject to extensive and stringent federal, state, local and foreign environmental laws and regulations. U.S. federal environmental laws that affect us include, but are not limited to, the Resource Conservation and Recovery Act (“RCRA”), the Clean Air Act, the Clean Water Act and the Comprehensive Environmental Response Compensation and Liability Act (“CERCLA”). These demand fluctuations resultslaws govern, among other things, emissions to the air, discharges or releases of hazardous substances to land, surface, subsurface strata and water, wastewater discharges and the generation, handling, storage, transportation, treatment, disposal and remediation of hazardous materials and petroleum products. We are also subject to other federal, state, local and foreign laws and regulations regarding chemical and product safety as well as employee health and safety matters, including process safety requirements. These laws and regulations may become more stringent over time and the failure to comply with such laws and regulations can result in higher sales and working capital requirementssignificant fines or penalties.
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We have in the secondpast been and currently are the subject of investigations and enforcement actions pursuant to environmental laws, including the Clean Air Act. Some of these matters were resolved through the payment of significant monetary penalties and a requirement to implement corrective actions at our facilities. For instance, we remain subject to a 2007 Consent Decree that resolves certain alleged Clean Air Act violations at six Ecoservices operating locations involving New Source Review, Prevention of Significant Deterioration and New Source Performance Standard obligations under the U.S. federal rules for the pollutants sulfur dioxide and sulfuric acid mist. The Consent Decree required Solvay (the owner of such facilities at the time) to pay a $2 million penalty and spend approximately $34 million on air pollution controls at our facilities, the majority of which was received from customers in contractual arrangements. Work under the Consent Decree has proceeded since 2007, and all of the significant capital improvements related to the Consent Decree have been completed. Three of our operating locations have been released from the scope of the Consent Decree and we are seeking release of the other locations covered by the Consent Decree. Upon issuance of New Source Review permit amendments at the remaining sites, we expect to be fully released from the Consent Decree.
We are required by these environmental laws and regulations to obtain registrations, licenses, permits and other approvals in order to operate, make disclosures to public authorities about our chemical handling and usage activities and install expensive pollution control and spill containment equipment at our facilities, or incur other capital expenditures aimed at achieving or maintaining compliance with such laws and regulations. The failure to timely identify and implement any such capital projects required to achieve or maintain compliance could expose us to enforcement and penalty.
Under CERCLA and analogous statutes in local and foreign jurisdictions, current and former owners and operators of land impacted by releases of hazardous substances are strictly liable for the investigation and remediation of the contamination resulting from the release. Liability under CERCLA and analogous laws is strict, unlimited, joint, several and retroactive, may be imposed regardless of fault and may relate to historical activities or contamination not caused by the affected property’s current owner or operator. We could be held responsible for all cleanup costs at a site, whether currently or formerly owned or operated, regardless of fault, knowledge, timing or cause of the contamination. Further, under CERCLA and analogous laws, we may be jointly and severally liable for contamination at third quarter.party sites where we or our predecessors in interest have sent waste for treatment or disposal, even if we complied with applicable laws. In addition, we may face liability for personal injury, property damage and/or natural resource damage resulting from environmental conditions attributable to hazardous substance releases at or from facilities we currently own or operate or formerly owned or operated or to which we sent waste. As such, a product spill or emission at one of our facilities or otherwise resulting from our operations could have adverse consequences on the environment and surrounding community and could result in significant liabilities with respect to investigation and remediation.
Environmental StewardshipOur facilities have an extended history of industrial use, and soil and groundwater contamination exists at some of our sites. As of December 31, 2023, we had current remediation, monitoring and/or maintenance obligations at several of our current or former sites, including Dominguez, California and Martinez, California. As of December 31, 2023, we had established reserves of approximately $0.4 million to cover anticipated expenses at these sites, all of which have reached relatively mature stages of the investigation, remediation or monitoring process. Actual costs to complete these projects may exceed our current estimates.
SustainabilityAs of December 31, 2023, our total reserves associated with environmental remediation and enforcement matters were $0.4 million. In addition to the ongoing remediation and monitoring activities discussed above, there is intertwined withrisk that the long-term industrial use at our dailyfacilities may have resulted in, or may in the future result in, contamination that has yet to be discovered, which could require additional, unplanned investigation and remediation efforts by us for which no reserves have been established, potentially without regard to whether we knew of, or caused, the release of such contaminants. Discovery of additional or unknown conditions at our facilities could have an adverse impact on our business by substantially increasing our capital expenditures, including compliance, investigation and remediation costs. Such environmental liabilities attached to our properties, or for properties that we are otherwise responsible for, could have a material adverse effect on our results of operations or financial condition.
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Existing and proposed regulations to address climate change by limiting greenhouse gas emissions may cause us to incur significant additional operating and capital expenses and may impact our business and is reinforced through our strategy and values. Our diverse product technologies enable downstream sustainability. Our Performance Chemicals segment provides products that are designed to support bio-fuel purification, specialty silicas for low-VOC environmentally preferred coatings, and our sodium silicates are designed to extend the durabilityresults of municipal water treatment pipelines by inhibiting corrosion. Our Refining Services segment regenerates sulfuric acid for the refining industry avoiding significant landfill or deep well disposal annually. operations.
Certain of our Catalyst segment’s productsoperations result in emissions of greenhouse gases (“GHGs”), such as carbon dioxide. Growing concern about the sources and impacts of global climate change has led to a number of domestic and foreign legislative and administrative measures, both proposed and enacted, to monitor, regulate and limit carbon dioxide and other GHG emissions. In the European Union, our emissions are designedregulated under the E.U. Emissions Trading System (the “E.U. ETS”), an E.U.-wide trading scheme for industrial GHG emissions. The E.U. ETS is anticipated to become progressively more stringent over time, including by reducing the number of allowances to emit GHGs that E.U. member states will allocate without charge to industrial facilities. In the United States, the EPA has promulgated federal GHG regulations under the Clean Air Act that affect certain sources. For example, the EPA has issued mandatory GHG reporting requirements, under which our Dominguez, California and Baton Rouge, Louisiana facilities currently report. Moreover, California has enacted the Global Warming Solutions Act of 2006 (“Assembly Bill 32”), a law that establishes a comprehensive program to reduce pollutants,GHG emissions from all sources throughout the state and contains reporting requirements under which our Dominguez and Martinez facilities currently report. Our Dominguez facility also participates in the emissions trading market established under Assembly Bill 32. Although we believe it is likely that GHG emissions will continue to be regulated in at least some regions of the United States and in other countries (in addition to the European Union) in the future, we cannot yet predict the form such regulation will take (such as nitrous oxides (NOx)a cap-and-trade program, technology mandate, emissions tax or other regulatory mechanism) or, consequently, estimate the costs that we may be required to incur to meet such requirements, which could, for example, require that we install emission control equipment, purchase emissions allowances, administer and manage our GHG emissions program or address other regulatory obligations. Such requirements could also adversely affect our energy supply or the costs and types of raw materials that we use for fuel. Accordingly, regulations controlling or limiting GHG emissions could have a material adverse effect on our business, financial condition or results of operations, including by reducing demand for our products.
Sustainability initiatives may result in vehicle exhaustoperational changes and expenditures, reduced demand for our products and adversely affect our business.
We recognize that sustainability is a growing global environmental concern. Continuing political and social attention to the issue of sustainability has resulted in both existing and pending international agreements and national, regional or local legislation and regulatory measures to increase sustainability. As a result of heightened public awareness and attention to the issue of sustainability as well as continued regulatory initiatives, demand for certain of our products may be reduced, which may have an adverse effect on our sales volumes, revenues and margins.
This growing global environmental concern is also manifesting in existing and pending sustainability legislation, regulations, and directives at the federal, state and international levels, including, but not limited to, the E.U. Corporate Sustainability Reporting Directive (“CSRD”), the California Climate Corporate Data Accountability Act (SB 253) and GHG Climate-related Financial Risk Act (SB 261), and proposed United States SEC rules addressing Scope 1, 2, and 3 emissions. In the future, these developments are anticipated to increase the cost associated with complying with existing, pending, and future sustainability-related legislation, regulations and directives and such increased costs and/or our failure to comply with any such legislation, regulations and directives could adversely affect our financial condition, results of operations and cash flows.
Production and distribution of our products could be disrupted for a variety of reasons, and such disruptions could expose us to significant losses or liabilities.
Certain of the hazards and risks associated with our manufacturing processes and the related storage and transportation of raw materials, products and wastes may disrupt production at our manufacturing facilities and the distribution of products to our customers. These potentially disruptive risks include, but are not limited to, the following:
pipeline and storage tank leaks and ruptures;
explosions and fires;
inclement weather and natural disasters;
terrorist attacks;
failure of mechanical, process safety and pollution control equipment;
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chemical spills and other discharges or releases of toxic or hazardous substances or gases;
epidemics and pandemics and effects therefrom; and
exposure to toxic chemicals.
These hazards could expose employees, customers, the community and others to toxic chemicals and other hazards, contaminate the environment, damage property, result in personal injury or death, lead to an interruption or suspension of operations, damage our reputation and adversely affect the productivity and profitability of a particular manufacturing facility or our business as a whole. Such hazards could also result in the need for remediation, governmental enforcement, regulatory shutdowns, the imposition of government fines and penalties and claims brought by removing sulfurgovernmental entities or third parties. Legal claims and regulatory actions could subject us to both civil and criminal penalties, which could affect our product sales, reputation and profitability.
If disruptions at our manufacturing facilities or in our distribution channels occur, alternative options with sufficient capacity or capabilities may not be available, may cost substantially more or may require significant time to start production or distribution. Any of these scenarios could negatively affect our business and financial performance. If one of our manufacturing facilities or distribution channels is unable to produce or distribute our products for an extended period of time, our sales may be reduced by the shortfall caused by the disruption and we may not be able to meet our customers’ needs, which could cause them to seek other suppliers. Furthermore, to the extent a production disruption occurs at a manufacturing facility that has been operating at or near full capacity, the resulting shortage of our product could be particularly harmful because production at the manufacturing facility may not be able to reach levels achieved prior to the disruption. Such risks are heightened in our Ecoservices segment, which has operations and customers primarily located in the Gulf Coast, which is susceptible to a heightened risk of hurricanes, and in California, which is susceptible to a heightened risk of earthquakes. For example, in December 2022, the operations of our Ecoservices’ Houston and Hammond facilities were disrupted by Winter Storm Elliot.
The insurance that we maintain may not fully cover all potential exposures.
We maintain property, business interruption, casualty and other types of insurance, but such insurance may not cover all risks associated with the operation of our business or our manufacturing process and the related use, storage and transportation of raw materials, products and wastes in or from fuels.our manufacturing sites or distribution centers. While we have purchased what we deem to be adequate limits of coverage and broadly worded policies, our coverage is subject to exclusions and limitations, including higher self-insured retentions or deductibles and maximum limits and liabilities covered. Notwithstanding diligent efforts to successfully procure specialty coverage for environmental liability and remediation, we may incur losses beyond the limits or outside the terms of coverage of our insurance policies, including liabilities for environmental remediation. In addition, from time to time, various types of insurance for companies in the industries in which we operate have not been available on commercially acceptable terms or, in some cases, at all. We are potentially at additional risk if one or more of our insurance carriers fail. Additionally, severe disruptions in the domestic and global financial markets could adversely impact the ratings and survival of some insurers. Future downgrades in the ratings of enough insurers could adversely impact both the availability of appropriate insurance coverage and its cost. In the future, we may not be able to obtain coverage at current levels, if at all, and our premiums may increase significantly on coverage that we maintain.
Our globalWe could be subject to damages based on claims brought against us by our customers or lose customers as a result of the failure of our products to meet certain quality specifications.
If a product technology team formalized its ideation processfails to perform in 2019a manner consistent with quality specifications, or has a shorter useful life than that which was guaranteed, a customer could seek replacement of the product or damages for costs incurred as a result of the product failing to perform as guaranteed. A successful claim or series of claims against us could cause reputational harm and continues to drive transformational growth through innovation. The team considers product sustainability across the life-cyclehave a material adverse effect on our financial condition and results of operations and could result in its stage-gate process.a loss of one or more customers.

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As an American Chemistry Council (“ACC”) Responsible Care® member company, we continue to reportWe may engage in strategic acquisitions or dispositions of certain assets or businesses that could affect our health, safety,business, results of operations, financial condition and environmental metrics annually. Our sustainability metrics, including waste generationliquidity.
We may selectively pursue complementary acquisitions, such as the Chem32 acquisition, and water consumption for 2018joint ventures, such as the Zeolyst Joint Venture, each of which inherently involves a number of risks and 2019, have been third party assured in 2020. On the sustainability pagespresents financial, managerial and operational challenges, including:
potential disruption of our website,ongoing business and distraction of management;
difficulty with integration of personnel and financial and other systems;
hiring additional management and other critical personnel; and
increasing the scope, geographic diversity and complexity of our operations.
In addition, we providedmay encounter unforeseen obstacles or costs in the integration of acquired businesses. For example, the presence of one or more material liabilities of an acquired company that are unknown to us at the time of acquisition may have a material adverse effect on our inaugural sustainability report, includingbusiness. Our acquisition and joint venture strategy may not be received positively by customers, and we may not realize any anticipated benefits from acquisitions or joint ventures.
We may also opportunistically pursue dispositions of certain assets and businesses, which may involve material amounts of assets or lines of business, which could adversely affect our sustainability goals, materiality matrix, lettersresults of assurance,operations, financial condition and liquidity. If any such dispositions were to occur, under the terms of the agreements governing our outstanding indebtedness, we may be required to apply the proceeds of the sale to repay such indebtedness.
In addition, our strategic acquisitions and dispositions may also affect the diversity of our assets and our capital structure. As a result, our acquisitions and dispositions could affect our business, results of operations, financial condition, and liquidity. Further, all the risks associated with our acquisitions and dispositions may not be immediately known to us, and the corresponding Global Reporting Initiative (GRI) Disclosure and Sustainability Accounting Standards Board (SASB) Index. Building on our commitmentanticipated benefits of improvement across sustainability elements,such acquisition or disposition may not be fully realized.
On December 14, 2020, we selected and began implementationcompleted the sale of our corporate-wide sustainability software platform in late 2020. Upon full implementationPerformance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P., for a purchase price of $650.0 million, which was subject to certain adjustments for indebtedness, working capital, and cash at the closing of the transaction.
Effective on August 1, 2021, we completed the sale of our softwarePerformance Chemicals business to Cerberus Capital Management, L.P. and Koch Mineral & Trading LLC for a purchase price of $1.1 billion, which was subject to certain adjustments including for indebtedness, cash, working capital and transaction expenses at the closing of the transaction.
Our joint ventures may not operate according to their business plans if our partners fail to fulfill their obligations or differences in 2021, we planviews among our partners results in delayed decisions or failures to introduceagree on major issues, which may adversely affect our internal real-time sustainability performance dashboardresults of operations and force us to enable improved analytics and greater visibility into our sustainability impacts.
Social Responsibility, including human capital discussionsdedicate additional resources to these joint ventures.
We currently participate in a joint venture relating to the Zeolyst International business and may enter into additional joint ventures in the future. The nature of a joint venture requires us to share control with unaffiliated third parties and we sometimes have joint and several liability with our joint venture partners. If our joint venture partners do not fulfill their obligations, or if differences in views among the joint venture participants result in delayed decisions or failures to agree on major issues, the affected joint venture may not be able to operate according to its business plan. For example, the Zeolyst Joint Venture is structured as a general partnership in which we are focused onequal partners with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell”. Accordingly, we do not control the safety of our employees. We continued our flagship health, safetyZeolyst Joint Venture and environmental program - PQ Perfect Days (“Perfect Days”). The Perfect Days program targets at-risk behaviorscannot unilaterally undertake strategies, plans, goals and celebrates positive health, safety and environmental performance across the organizationoperations or determine when cash distributions will be made to us. Furthermore, we are liable on a daily basis. As part of that program, we have set annual Perfect Dayjoint and Total Recordable Incident Rate goals and targets that link to performance and drive accountability. We concluded 2020several basis with no material environmental and safety incidents or accidents and achieved our 2020 target of ACC top quartile total case incident rate performance based upon 2019 benchmark data. The COVID-19 pandemic introduced another level of health and safety performance concerns in 2020 as the entire globe entered the COVID-19 pandemic. We quickly introduced, and have maintained protocols to minimize risk of exposure and transmittal within all of our work sites so that we could continue to provideShell for all of the partnership’s liabilities if it does not have sufficient assets to satisfy such liabilities. Such factors may adversely affect our customers while keepingresults of operation and force us to dedicate additional and unexpected resources to our employees safe and healthy.joint ventures.
Our executive leadership across the organization, led byfailure to protect our Chairmanintellectual property rights could adversely affect our future performance and CEO, formedgrowth.
Protection of our COVID Rapid Response Team (CRRT). The team has worked to maintain our healthproprietary processes, methods, compounds and safety standards while effectively managing COVID-19 impacts to the business and our sites. The team’s responsibilities include tracking and implementing government requirements and CDC guidelines to enable appropriate actions be taken; leading communicationsother technologies is important to our employees, customers,business. We depend upon our ability to develop and entire supply chain; and sharing best practices and lessons learnedprotect our intellectual property rights to distinguish our products from our response. Business leadership executed established business continuity plans, which included our market response with the primary goal of safeguarding the health and safetythose of our people and supporting the needs of our customers, while also maximizing productivity for the Company.
Further in 2020, the leadership and rapid response teams prepared guidance for all sites and functions, which included preventative measures and return-to-work procedures. Operations shifts were adjusted, up to and including temporary shutdowns as necessary, to minimize exposures andcompetitors. Failure to protect all personnel. Mostour existing intellectual property rights may allow our competitors to copy our products and may result in the loss of the practices remainvaluable proprietary technologies or other intellectual property. Failure to protect our innovations and trademarks by securing intellectual property rights could also result in place todayour having to pay other
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companies for infringing on their intellectual property rights. We rely on a combination of patent, trade secret, trademark and are now part of our preparation standards.
Our flagship “Success through people” program furthers our strategy by acknowledging our workforce is key to our success. We offer highly competitive salaries, benefits, developmental opportunities and work/life balance. We proactively seek to attract, incentivize and retain a talented and motivated workforce. Our global succession planning process is designed to provide sufficient talented personnel to fill key leadership, innovation and manufacturing roles well into the future and to better prepare employees for their future at the Company. In order to enable a pipeline for our leadership, we maintain a robust Emerging Leaders program to identify top talent to build leadership capabilities and provide the fundamental skills we believe every leader needs to generate passion and productivity in their team. The program also provides an important networking opportunity that creates a connected community of leaders at the Company.
We review our compensation and benefits programs periodically to ensure continued competitiveness. In the US, our benefit program is designed to help protect the health and financial well-being of our full-time employees and their family members today, offering a choice of several medical & dental plans,copyright law as well as vision, flexible spending accounts, short-termregulatory and long-term disability insurancejudicial enforcement to protect such technologies and an employee assistance program.To help them prepare for their future, we offer a defined contribution savings plan, which includes company contributions. Benefits outsidetrademarks. In addition, the US are designedlaws of many foreign countries do not protect our intellectual property rights to supplement government-provided programs in each country.
We actively promote diversity within the Company and seek to have a workforce that reflectssame extent as the diversitylaws of the societies in which we operate. We strive to hire candidates from diverse backgrounds, cultures and ethnicities.

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Building on a global footprint that spans across 16 countries, we benefit from our talented and dedicated employees that make up a diverse population, where more than half of our workforce of 2,274 employees are located outside the United States. As of December 31, 2020,2023, we had 2,274 employees worldwide, of which 1,019 were employedowned 21 patented inventions in the United States, 343with 175 patents issued in countries around the world and 61 patent applications pending worldwide covering such inventions. Some of these patents are licensed to others. In addition, we have acquired certain rights under patents and inventions of others through licenses. Should any of these licenses granted to us by third parties terminate prior to the expiration of the licensed intellectual property, we would need to cease using the licensed intellectual property, and either develop or license alternative technologies. In such a case, there can be no assurance that alternative technologies exist or that we would be able to obtain such a license on favorable terms.
Competitors and third parties may infringe on our patents or violate our intellectual property rights. Defending and enforcing our intellectual property rights can involve litigation and can be expensive and time consuming. Such proceedings could put our patents at risk of being invalidated and confidential information may be disclosed through the discovery process; these costs and diversion of resources could harm our business.
We cannot provide any assurances that any of our pending applications will mature into issued patents, or that any patents that have issued or may issue in the future do or will include claims with a scope sufficient to provide any competitive advantage. Patents involve complex legal and factual questions and, therefore, the issuance, scope, validity and enforceability of any patent claims we have or may obtain cannot be predicted with certainty. Patents may be challenged, deemed unenforceable, invalidated or circumvented. Patents may be challenged in the courts, as well as in various administrative proceedings before the United States Patent and Trademark Office or foreign patent offices. We are currently and may in the future be a party to various adversarial patent office proceedings involving our patents or the patents of third parties. Such challenges can result in some or all of the claims of the challenged patent being invalidated, deemed unenforceable, or interpreted narrowly which, in the case of challenges to our own patents, may be adverse to our interests. Accordingly, the issuance of patents is not conclusive of the validity, scope, or enforceability of such patents. Moreover, even if valid and enforceable, competitors may be able to design around our patents or use pre-existing technologies to compete with us.
We also rely upon unpatented proprietary know-how, continuing technological innovation and other trade secrets to develop and maintain our competitive position, which may not provide us with complete protection against competitors. Misappropriation or unauthorized disclosure of our proprietary know-how could harm our competitive position or have an adverse effect on our business. While it is our policy to enter into confidentiality agreements with our employees and third parties to protect our intellectual property rights and we strive to maintain the physical security of our properties and the security of our IT systems, there can be no assurances that:
our confidentiality agreements will not be breached;
our security measures will not be breached;
such agreements will provide meaningful protection for our trade secrets or proprietary know-how; or
adequate remedies will be available in the event of an unauthorized use or disclosure of such trade secrets and know-how.
In addition, there can be no assurances that others will not obtain knowledge of these trade secrets through independent development or other access by legal means.
Measures taken by us to protect these assets and rights may not provide meaningful protection for our trade secrets or proprietary manufacturing expertise and adequate remedies may not be available in the event of an unauthorized use or disclosure of our trade secrets or manufacturing expertise. In addition, as noted above, our patents and other intellectual property rights may be challenged, invalidated, circumvented or rendered unenforceable.
Furthermore, we cannot provide assurance that any pending patent or trademark application filed by us will result in an issued patent or registered trademark or, if patents are issued to us, that those patents will provide meaningful protection against competitors or against competitive technologies. The failure of our patents or other measures to protect our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds or trademarks and provide us with freedom to exclude competition could have an adverse effect on our business, financial condition, results of operations and cash flows. See “Business-Intellectual Property.”
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Our products may infringe the intellectual property rights of others, which may cause us to incur unexpected costs or prevent us from selling our products.
Our industry is characterized by vigilant pursuit of intellectual property rights, particularly with respect to our advanced silicas and zeolite catalysts product groups. Like us, our competitors rely on intellectual property rights to maintain profitability and competitiveness. As the number of products and competitors has increased, the likelihood of intellectual property disputes has risen. Although it is our policy and intention not to infringe valid patents of others, our processes, apparatuses, technology, proprietary manufacturing expertise, methods, compounds and products may infringe on issued patents or infringe or misappropriate other intellectual property rights of others. Accordingly, we continually monitor third-party intellectual property to confirm our freedom to operate. Nevertheless, we may be subject to legal proceedings and claims in the ordinary course of our business, including claims of alleged infringement of the patents or trademarks or infringement or misappropriation of other intellectual property rights of third parties by us or our licensees in connection with their use of our products. Intellectual property litigation is expensive and time-consuming, regardless of the merits of any claim, and could divert the attention of our management and technical personnel away from operating our business. If we were employedto discover that our processes, apparatuses, technology, products or trademarks infringe the valid intellectual property rights of others, we might need to obtain licenses from these parties or substantially reengineer or rebrand our products in Canada, Mexico,order to avoid infringement. We may not be able to obtain the necessary licenses on acceptable terms, or at all, or be able to reengineer our products successfully or at an acceptable cost. Moreover, if we are sued for infringement and Brazil, 735lose the suit, we could be required to pay substantial damages and/or be enjoined from using or selling the infringing products or technology or using the infringing trademark. Additionally or alternatively, we may seek to challenge third-party patents in administrative proceedings before the United States patent office or one or more foreign patent offices. Any of the foregoing could cause us to incur significant costs and prevent us from selling our products, which could have an adverse effect on our business, financial condition, results of operations and cash flows. Even if we ultimately prevail, the existence of lawsuits could prompt our customers to switch to alternative products. In addition, we have agreed, and will continue to agree, to indemnify certain customers for certain intellectual property infringement claims related to intellectual property relating to our products and the manufacture thereof. Should there be infringement claims against our licensees, we could be required to indemnify them for losses resulting from such claims or to refund amounts they have paid to us.
Disruption, failure or cybersecurity breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations.
We use computers and telecommunication systems to analyze and store financial and operating data and to communicate within our company, with outside business partners, and across international borders. These systems can be subject to technical system flaws; power loss; cyber attacks, including viruses, malware, phishing, ransomware, terrorism, and surveillance; unauthorized access; malicious software; intentional or inadvertent data privacy breaches by employees or others with authorized access; hacktivism; ransomware; physical or electronic break-ins; fires or natural disasters; supply chain attacks; and other cybersecurity issues. We have no assurance that our systems are appropriately redundant to withstand these events. Accordingly, such events could cause adverse effects and material disruptions to our operations or systems or those of our business partners; compromise the security, integrity, availability, and confidentiality of customer information, employee information, strategic projects, product formulas and other trade secrets, other business or personal sensitive data, including third party confidential information in our possession. Release of third party confidential information could materially harm our reputation, affect our relationships with such parties and expose us to liability. Although we have introduced many security measures, including firewalls and information technology security policies and training, these measures may not offer the appropriate level of security. A security breach or other compromise of our information security safeguards could expose our confidential information, including third party confidential information in our possession (such as customer information) to theft and misuse, which could in turn adversely affect our relationships with such third parties and have an adverse effect on our business, financial condition, results of operations and cash flows. In addition, a disruption, blockage, failure or a cyber breach of software or operating systems we use, or of the networks and infrastructure on which they rely, could damage critical production, distribution and/or storage assets, delay or prevent delivery to markets, and make it difficult or impossible to accurately account for production and settle transactions.
These impacts may adversely affect our relationships with employees, customers and other third parties and may have an adverse effect on our business reputation, competitiveness, financial condition, results of operations and cash flows, including damage to our operations, employees, or other third parties, resulting in remediation costs, litigation or regulatory actions. Although we have introduced many security measures, including firewalls and information
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technology security policies and training, these measures may not offer the appropriate level of security. We routinely experience attempts by external parties to penetrate and attack our networks and systems. Although such attempts to date have not resulted in any material breaches, disruptions, financial loss, or loss of business-critical information, our systems and procedures for protecting against such attacks and mitigating such risks may prove to be insufficient in the future. As technologies evolve and these cyber security attacks become more sophisticated, we may incur significant costs to upgrade or enhance our security measures to protect against such attacks, and we may face difficulties in fully anticipating or implementing adequate preventive measures or mitigating potential harm.

Risks Related to our Financial Condition
The non-GAAP financial information included in this Form 10-K is presented for informational purposes only and may not be an indication of our financial condition or results of operations in the future.
The non-GAAP financial information included in this Form 10-K includes information that we use to evaluate our past performance, but should not be considered in isolation or as an alternative to measures of our performance determined under GAAP.
Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.
Our operations are conducted through our subsidiaries and joint ventures. As a result, our ability to make future dividend payments, if any, is dependent on the earnings of our subsidiaries and joint ventures and the payment of those earnings to us in the form of dividends, loans or advances and through repayment of loans or advances from us. Payments to us by our subsidiaries and joint ventures will be contingent upon our subsidiaries’ or joint ventures’ earnings and other business considerations and may be subject to statutory or contractual restrictions. We have not paid regular dividends on our common stock; however, we paid a special cash dividend in December 2020 and in August 2021 that was financed with the cash proceeds from our sale of our Performance Materials and Performance Chemicals businesses, respectively. To the extent that we determine in the future to pay dividends on our common stock, the agreements governing our outstanding indebtedness significantly restrict the ability of our subsidiaries to pay dividends or otherwise transfer assets to us.
We may need to recognize impairment charges related to goodwill, identified intangible assets and fixed assets.
We are required to test goodwill and any other intangible asset with an indefinite life for possible impairment on the same date each year and on an interim basis if there are indicators of a possible impairment. We are also required to evaluate indefinite-lived intangible assets and fixed assets for impairment if there are indicators of a possible impairment.
There is significant judgment required in the analysis of a potential impairment of goodwill, identified intangible assets and fixed assets. If, as a result of a general economic slowdown or deterioration in one or more of the industries in which we operate or in our financial performance or future outlook, or if the estimated fair value of our long-lived assets decreases, we may determine that one or more of our long-lived assets is impaired. An impairment charge would be determined based on the estimated fair value of the assets and any such impairment charge could have a material adverse effect on our results of operations and financial position.
We performed our annual impairment test on goodwill on October 1, 2023, and determined there was no goodwill impairment.
We may be subject to future changes in tax legislation or exposure to additional tax liabilities that may adversely affect our results of operations.
We are subject to taxes in the U.S. as well as foreign jurisdictions where our subsidiaries are organized. Due to economic and political conditions, tax rates, tax laws and other non-tax legislation, such as economic substance regulations, our business may experience significant impacts as a result of prospective changes. For example, the Inflation Reduction Act (“IRA”) enacted in the U.S. on August 16, 2022 imposes several new taxes that became effective in 2023, including a 1% excise tax on stock repurchases. Our future effective tax rates may be affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities, changes in available tax credits or tax deductions, as well as changes in tax and other non-tax laws or their interpretation. Additionally, our organization is engaged in a number of cross-border intercompany transactions, subject to local transfer pricing regimes currently in place. We believe the economics of these transactions have been clearly
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reported, and the appropriate local transfer pricing documentation is contemporaneously available, although tax authorities may propose and potentially sustain adjustments that could result in changes to our mix of earnings in countries with differing statutory tax rates. The Organization of Economic Cooperation and Development (“OECD”), which represents a coalition of member countries, is supporting changes to numerous long-standing tax principles through its base erosion and profit shifting (“BEPS”) project. This project focuses on a number of issues, including the shifting of profits cross-border amongst affiliated entities. Given the scope of the Company's international operations and the fluid and uncertain nature of how the BEPS project might ultimately lead to future legislation, it is difficult to assess how any changes in tax laws would impact the Company's future income tax expense. For example, the Model Rules under BEPS’s Pillar Two include a common approach for a global minimum tax. The Company has assessed the minimum tax and does not expect it to be within the scope of the Model Rules beginning January 1, 2024. The Company will continue to monitor the BEPS project and the applicability of new tax legislation to the Company.
Our tax returns and other tax matters are subject to examination by local tax authorities and governmental bodies. We regularly assess the likelihood of an adverse outcome resulting from these examinations, in order to determine any resulting impact to our provision for taxes. There can be no assurance as to the outcome of these examinations. If our effective tax rates were employed throughout Europe, 37to increase as a result of a tax examination, or if the ultimate determination of the taxes owed by us is for an amount in excess of amounts previously accrued, our operating results, cash flows and financial condition could be adversely affected.
We have underfunded pension plan liabilities. We will require current and future operating cash flow to fund these shortfalls. We have no assurance that we will generate sufficient cash flow to satisfy these obligations.
We maintain defined benefit pension plans covering employees who meet age and service requirements. While all of our plans have been frozen, our net pension liability and cost is materially affected by the discount rate used to measure pension obligations, the longevity and actuarial profile of our workforce, the level of plan assets available to fund those obligations and the actual and expected long-term rate of return on plan assets. Significant changes in investment performance or a change in the portfolio mix of invested assets can result in corresponding increases and decreases in the valuation of plan assets, particularly equity securities, or in a change in the expected rate of return on plan assets. Assets available to fund the pension obligations of our plans as of December 31, 2023 were employedapproximately $61.6 million, or approximately $4.9 million less than the measured pension benefit obligation on a GAAP basis. In addition, any changes in South Africathe discount rate could result in a significant increase or decrease in the valuation of pension obligations, affecting the reported funded status of our pension plans as well as the net periodic pension cost in the following years. Similarly, changes in the expected return on plan assets can result in significant changes in the net periodic pension cost in the following years.
We also provide certain health care and 95life insurance benefits through an unfunded plan to a group of retirees in the United States who retired prior to the date on which these benefit programs were employed in Indonesia. Our remainingfrozen. Current employees are dispersed throughout Asia, primarilynot eligible for any post-retirement health care or life insurance benefits. Costs of these other post-employment benefit plans are dependent upon numerous factors, assumptions and estimates.
Risks Related to our Indebtedness
Our substantial level of indebtedness could adversely affect our financial condition.
We have substantial indebtedness, which as of December 31, 2023, totaled approximately $877.5 million. Our substantial indebtedness, combined with our other financial obligations and contractual commitments, could have important consequences, including:
requiring us to dedicate a substantial portion of our cash flows from operations to payments on our indebtedness, thereby reducing funds available for working capital, capital expenditures, acquisitions, selling and marketing efforts, product development and other purposes;
increasing our vulnerability to adverse economic and industry conditions, which could place us at a competitive disadvantage compared to our competitors that have relatively less indebtedness;
limiting our flexibility in Thailand. planning for, or reacting to, changes in our business and the industries in which we operate;
increasing our exposure to rising interest rates because certain of our borrowings are at variable interest rates;
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restricting us from making investments, strategic acquisitions or causing us to make non-strategic divestitures; and
limiting our ability to borrow additional funds, or to dispose of assets to raise funds, if needed, for working capital, capital expenditures, acquisitions, product development and other corporate purposes.
Although the terms of the agreements governing our outstanding indebtedness contain restrictions on the incurrence of additional indebtedness, such restrictions are subject to a number of important exceptions and indebtedness incurred in compliance with such restrictions could be substantial. If we and our restricted subsidiaries incur significant additional indebtedness, the related risks that we face could increase.
The terms of our indebtedness restrict our current and future operations, particularly our ability to respond to change or to take certain actions.
The indentures governing our outstanding indebtedness contain a number of restrictive covenants that impose significant operating and financial restrictions on us and may limit our ability to engage in acts that may be in our long-term best interest, including restrictions on our ability to incur additional indebtedness, make investments, acquisitions, loans and advances, sell, transfer or otherwise dispose of our assets or incur liens. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Debt.” In addition, the restrictive covenants in the agreements governing our senior secured credit facilities require us to maintain specified financial ratios and satisfy other financial condition tests. Our ability to meet these financial ratios and tests can be affected by events beyond our control.
A breach of such covenants could result in an event of default unless we obtain a waiver to avoid such default. If we are unable to obtain a waiver, such a default may allow our creditors to accelerate the related debt and may result in the acceleration of, or default under, any other debt to which a cross-acceleration or cross-default provision applies. In the event our lenders or noteholders accelerate the repayment of our borrowings, we and our subsidiaries may not have sufficient assets to repay that indebtedness.
Risks Related to our Common Stock
Our stock price could be extremely volatile and, as a result, you may not be able to resell your shares at or above the price you paid for them.
Since launching our IPO in September 2017, the price of our common stock, as reported on the New York Stock Exchange, has ranged from a low of $8.20 on November 15, 2022 to a high of $18.90 on March 9, 2021. In addition, the stock market in general has been highly volatile. As a result, the market price of our common stock is likely to be similarly volatile, and investors in our common stock may experience a decrease, which could be substantial, in the value of their stock, including decreases unrelated to our operating performance or prospects, and could lose part or all of their investment. The price of our common stock could be subject to wide fluctuations in response to a number of factors, including those described elsewhere herein and others such as:
variations in our operating performance and the performance of our competitors;
actual or anticipated fluctuations in our quarterly or annual operating results;
publication of research reports by securities analysts about us, our competitors or our industry;
our failure or the failure of our competitors to meet analysts’ projections or guidance that we or our competitors may give to the market;
additions or departures of key personnel;
strategic decisions by us or our competitors, such as acquisitions, divestitures, spin-offs, joint ventures, strategic investments or changes in business strategy;
the passage of legislation or other regulatory developments affecting us or our industry;
changes in legislation, regulation and government policy as a result of the U.S. presidential and congressional elections;
speculation in the press or investment community;
changes in accounting principles;
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sales of substantial amounts of our stock by current stockholders (including stock by insiders or 5% stockholders);
terrorist acts, acts of war or periods of widespread civil unrest;
natural disasters and other calamities; and
changes in general market and economic conditions.
In addition, broad market and industry factors may negatively affect the market price of our common stock, regardless of our actual operating performance, and factors beyond our control may cause our stock price to decline rapidly and unexpectedly. We are exposed to the impact of any global or domestic economic disruption that may occur..
In the past, securities class action litigation has often been initiated against companies following periods of volatility in their stock price. This type of litigation could result in substantial costs and divert our management’s attention and resources, and could also require us to make substantial payments to satisfy judgments or to settle litigation.
Your percentage ownership in us may be diluted by future issuances of capital stock, which could reduce your influence over matters on which stockholders vote.
Our board of directors has the authority, without action or vote of our stockholders, to issue all or any part of our authorized but unissued shares of common stock, including shares issuable upon exercise of options, or shares of our authorized but unissued preferred stock. Issuances of common stock or voting preferred stock would reduce your influence over matters on which our stockholders vote and, in the case of issuances of preferred stock, would likely result in your interest in us being subject to the prior rights of holders of that preferred stock.
Provisions in our charter documents and Delaware law may deter takeover efforts that may be beneficial to stockholder value.
Provisions in our certificate of incorporation and bylaws and Delaware law could make it harder for a third party to acquire us, even if doing so might be beneficial to our stockholders. These provisions include a classified board of directors and the ability of our board of directors to issue preferred stock without stockholder approval that could be used to dilute a potential hostile acquiror. Our certificate of incorporation imposes some restrictions on mergers and other business combinations between us and any holder of 15% or more of our outstanding common stock other than INEOS Limited and investment funds affiliated with CCMP, Capital Advisors, L.P. (“CCMP”), one of our former stockholders. As a result, you may lose your ability to sell your stock for a price in excess of the prevailing market price due to these protective measures, and efforts by stockholders to change the direction or management of the company may be unsuccessful.
Our certificate of incorporation designates courts in the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.
Our certificate of incorporation provides that, subject to limited exceptions, the Court of Chancery of the State of Delaware is the sole and exclusive forum for:
any derivative action or proceeding brought on our behalf;
any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders;
any action asserting a claim against us arising pursuant to any provision of the General Corporation Law of the State of Delaware, our certificate of incorporation or our bylaws;
any action to interpret, apply, enforce or determine the validity of our certificate of incorporation or bylaws; or
any other action asserting a claim against us that is governed by the internal affairs doctrine (each, a “Covered Proceeding”).
In addition, our certificate of incorporation provides that if any action the subject matter of which is a Covered Proceeding is filed in a court other than the specified Delaware courts without the approval of our board of directors (each, a “Foreign Action”), the claiming party will be deemed to have consented to (i) the personal jurisdiction of the
36


specified Delaware courts in connection with any action brought in any such courts to enforce the exclusive forum provision described above and (ii) having service of process made upon such claiming party in any such enforcement action by service upon such claiming party’s counsel in the Foreign Action as agent for such claiming party.
Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and to have consented to these provisions. These provisions may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and employees. Alternatively, if a court were to find these provisions of our certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business and financial condition.
We may not pay additional dividends on our common stock and, consequentially, you may not receive any return on investment unless you sell your common stock for a price greater than that which you paid for it.
Although we paid special cash dividends in December 2020 and August 2021, our board of directors may decide to retain future earnings, if any, for future operations, expansion and debt repayment and may not pay any special or regular dividends for the foreseeable future. Any decision to declare and pay special or regular dividends in the future will be made at the discretion of our board of directors and will depend on, among other things, our results of operations, financial condition, cash requirements, contractual restrictions and other factors that our board of directors may deem relevant. In addition, our ability to pay dividends may be limited by covenants of any existing and future outstanding indebtedness we or our subsidiaries incur, including our credit facilities and outstanding notes. See “Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.” As a result, you may not receive any return on an investment in our common stock unless you sell your common stock for a price greater than that which you paid for it.
General Risk Factors
Significant trade developments stemming from the U.S. administration, U.S. courts’ or the United Kingdom’s exit from the European Union could have an adverse effect on us.
The United States has in recent years renegotiated a number of trade agreements, such as the United States-Mexico-Canada Agreement (“USMCA”), imposed tariffs on goods imported from China and certain other countries, and increasingly levied sanctions and export controls on China and other countries. All of these actions have resulted in retaliatory action, including retaliatory tariffs and other restrictions by China and other countries. These changes, as well as any other changes in social, political, regulatory and economic conditions, or further changes to foreign or domestic laws and policies governing foreign trade (including export, import and sanctions), manufacturing and development and foreign direct investment in the territories and countries where we or our customers operate could adversely affect our operating results and our business.
Additionally, in June 2016, the United Kingdom held a referendum and voted in favor of leaving the European Union and, on January 31, 2020, the United Kingdom exited the European Union and the implementation period or transition period ended on December 31, 2020. This referendum and exit has created political and economic uncertainty, particularly in the United Kingdom and the European Union, and this uncertainty may last for years. Our business could be affected during this period of uncertainty, and perhaps longer, by the impact of the United Kingdom’s referendum and exit. In addition, our business could be negatively affected by new trade agreements between the United Kingdom and other countries, including the United States, and by the possible imposition of trade or other regulatory barriers in the United Kingdom. These possible negative impacts, and others resulting from the United Kingdom’s withdrawal from the European Union, may adversely affect our customers’ businesses and our operating results.
If we lose certain key personnel or are unable to hire additional qualified personnel, we may not be able to execute our business strategy and our business could be adversely affected.
Our success depends, in part, upon the continued services of our highly skilled personnel involved in management, research, production and distribution and, in particular, upon the efforts and abilities of our key officers. Although we believe that we are adequately staffed in key positions, we may not be able to retain such personnel on acceptable terms or at all, and such personnel may seek to compete with us in the future. If we lose the service of any of our key personnel, we may not be able to hire replacements with the same level of industry experience and knowledge necessary
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to execute our business strategy, which in turn could have a material adverse effect on our business, financial condition, results of operations or cash flows.
We depend on good relations with our workforce, and any significant disruptions could adversely affect our operations.
As of December 31, 2020,2023, we had 911 employees worldwide, approximately 49%44% of our employeeswhich were represented by a union, works council or other employee representative body. As of December 31, 2023, 137 of our U.S. unionized employees were covered under collective bargaining agreements that will expire on or before December 30, 2024. Failure to reach agreement with any of our unionized work groups regarding the terms of their collective bargaining agreements or annual pay increases may result in a labor strike, work stoppage or slowdown. In addition, a large number of our employees are employed in countries in which employment laws provide greater bargaining or other rights to employees than the laws of the United States. Such employment rights require us to work collaboratively with the legal representatives of the employees to effect any changes to labor arrangements. For example, many of our employees in Europe are represented by works councils that must approve any changes in conditions of employment, including salaries, benefits and staff changes, and may impede efforts to restructure our workforce. Although we believe that we have a good working relationship with our employees, a strike, work stoppage or slowdown by our employees or a dispute with our employees could result in a significant disruption to our operations or higher ongoing labor costs. In addition, our ability to make adjustments to control compensation and benefit costs, or otherwise adapt to changing business needs, may be limited by the terms and duration of our collective bargaining agreements.

We are subject to certain risks related to litigation filed by or against us, as well as administrative and regulatory proceedings, and adverse results may harm our business.
We cannot predict with certainty the cost of defense, the cost of prosecution or the ultimate outcome of litigation and other administrative and regulatory proceedings filed by or against us, including remedies or damage awards, and how adverse results in any litigation or other administrative and regulatory proceedings may materially harm our business. Litigation and other administrative and regulatory proceedings may include, but are not limited to, actions relating to intellectual property, commercial arrangements, environmental, health and safety matters, joint venture agreements, labor and employment matters, domestic and foreign antitrust matters or other harms resulting from the actions of individuals or entities outside of our control. In the case of intellectual property litigation and proceedings, adverse outcomes could include the cancellation, invalidation or other loss of material intellectual property rights used in our business and injunctions prohibiting our use of our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds that are subject to third-party patents or other third-party intellectual property rights. Litigation based on environmental matters or exposure to hazardous substances in the workplace or from our products could result in significant liability for us. For example, we are currently subject to various asbestos premises liability claims that relate to a contractor exposure to asbestos contained in certain building materials at our sites. Furthermore, our international operations expose us to potential administrative and regulatory proceedings in foreign jurisdictions. Adverse outcomes in any of the foregoing could have a material adverse effect on our business.
If we fail to maintain effective internal control over financial reporting and effective disclosure controls and procedures, we may not be able to accurately report our financial results in a timely manner or prevent fraud, which may adversely affect investor confidence in our company.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, as amended, our management is required to report on, and our independent registered public accounting firm is required to attest to, the effectiveness of our internal control over financial reporting. This assessment includes disclosure of any material weakness identified by our management in our internal control over financial reporting. In addition, we are required to comply with the SEC’s rules implementing Section 302 of the Sarbanes-Oxley Act, which requires management to certify financial and other information in our quarterly and annual reports, and we are required to disclose significant changes made in our internal controls and procedures on a quarterly basis.
If we identify a material weakness in our internal control over financial reporting, we may not be able to remediate the material weakness identified in a timely manner or maintain all of the controls necessary to remain in compliance with our reporting obligations. If we are unable to assert that our internal control over financial reporting is effective, or if our independent registered public accounting firm is unable to express an unqualified opinion as to the effectiveness of our internal control over financial reporting in future periods, investors may lose confidence in the accuracy and completeness of our financial reports, the market price of our common stock could be negatively affected, and we could
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become subject to investigations by the New York Stock Exchange, on which our securities are listed, the SEC or other regulatory authorities, which could require additional financial and management resources.
Regulations related to conflict minerals could adversely impact our business.
The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 contains provisions to improve transparency and accountability concerning the supply of certain minerals, known as conflict minerals, originating from the Democratic Republic of Congo (the “DRC”) and adjoining countries. The SEC requires annual disclosure and reporting requirements for those companies who use conflict minerals mined from the DRC and adjoining countries in their products. We incur costs associated with complying with these disclosure requirements, including for diligence to determine the sources of conflict minerals used in our products and other potential changes to products, processes or sources of supply as a consequence of such verification activities. These rules could adversely affect the sourcing, supply and pricing of materials used in our products. As there may be only a limited number of suppliers offering “conflict free” conflict minerals, we cannot be sure that we will be able to obtain necessary conflict minerals from such suppliers in sufficient quantities or at competitive prices.
ITEM 1B.    UNRESOLVED STAFF COMMENTS.
None.
ITEM 1C.    CYBERSECURITY.
Risk Management and Strategy
The Company has adopted processes designed to identify, assess and manage material risks from cybersecurity threats, which are integrated into the Company’s overall risk management systems and processes. Those processes include response to and an assessment of internal and external threats to the security, confidentiality, integrity and availability of our data and information systems, along with other material risks to our operations. The Company references the National Institute of Standards and Technology Cybersecurity Framework to help identify, assess, and manage cybersecurity risks and has adopted and tested a formal cybersecurity incident response plan. As part of our risk management process, the Company also engages third-party providers to conduct periodic internal and external penetration testing and maturity assessments. The Company stores data on premise and in cloud environments, with security appropriate to the data involved and has adopted controls around, among other things, access and acceptable use, backup and recovery and vendor risk assessment.
Our cybersecurity program is managed by the Cyber Incident Response Team (the “CIRT”), which is led by the Global IT Director, System Infrastructure Manager and the Network Infrastructure Manager, each with over 20 years of experience in IT. The CIRT serves as the core team responsible for managing the enterprise-wide cybersecurity policy, maintenance and compliance across all platforms. The CIRT is responsible for the detection and initial assessment of potential cybersecurity threats and incidents. The CIRT classifies detected cyber incidents to allow prioritization, response and escalation. Incidents are documented for internal reporting processes and regularly shared with senior management.
In the event of a potential cybersecurity incident, the CIRT will conduct an assessment to determine the nature and scope of the incident and manages the incident in accordance with our incident response plan until the incident is contained and resolved. The CIRT will document findings and make them available to the Disclosure Committee, which includes cross functional senior management representation from information technology, legal, finance, investor relations and business segments. The Disclosure Committee, in conjunction with third-party experts, including outside legal counsel, is responsible for assessing the materiality of any cybersecurity incident and coordinating external communications and disclosures, including with the Securities and Exchange Commission.
On a quarterly basis, our employees, contractors, and other users of the Company’s systems and networks are required to take cybersecurity training. The training is designed to provide employees and contractors with a baseline understanding of cybersecurity fundamentals to prevent security breaches and safely identify potential threats. These trainings are administered through a collaboration with third-party services and systems and address various topics, including how to handle sensitive and personal information, physical security of intellectual property, how to identify phishing attempts, reducing our risk to being phished and how to improve cybersecurity intelligence while working from home.
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As of December 31, 2023, we are not aware of any cybersecurity threats that have materially affected or are reasonably likely to materially affect the Company's business strategy, results of operations, or financial condition, although we may be materially affected in the future by such risks or future material incidents. See “Risk Factors—Risks Related to Our Business Operations—Disruption, failure or cyber security breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations” for additional information regarding cybersecurity risks.
Governance
Roles and Responsibilities
Cybersecurity is an important part of our risk management processes and an area of focus for Ecovyst’s management and Board of Directors. We continue to invest in cybersecurity and the resiliency of our networks and to enhance our internal controls and processes, which are designed to help protect our systems and infrastructure and the information they contain.
Our Board is actively involved in the assessment, oversight and management of the material risks that could affect the Company. The Board carries out its risk oversight and management responsibilities by monitoring risk directly as a full Board and, where appropriate, through its committees. The Board has delegated to the Audit Committee the responsibility to oversee the integrity of the Company’s information technology and cybersecurity risks and to assess the risks and incidents relating to cybersecurity threats. While our Board and Audit Committee oversee cybersecurity risk, management, through the CIRT, is responsible for the implementation and management of cybersecurity risk management systems and processes and for the communication of incidents to senior management and the Audit Committee.
The CIRT meets with the CEO and other members of our senior management on a quarterly basis and meets with the Audit Committee at least annually. Additionally, the Audit Committee regularly meets with members of the Company’s internal audit function to discuss risk management activities, compliance, best practices, and other related matters.
ITEM 2.    PROPERTIES.
Our operating headquarters are located in Malvern, Pennsylvania and our primary research and development facility is in Conshohocken, Pennsylvania. As of December 31, 2023, we had ten manufacturing facilities in two countries. We also had five administrative facilities and two research and development facilities located in three countries. Our joint ventures operated out of two facilities located in two countries.
The table below presents summary information regarding our principal manufacturing facilities that we own as of December 31, 2023.
LocationSegment
Baton Rouge, Louisiana, United StatesEcoservices
Baytown, Texas, United StatesEcoservices
Dominguez, California, United StatesEcoservices
Delfzijl, The Netherlands(1)
Advanced Materials & Catalysts
Hammond, Indiana, United StatesEcoservices
Houston, Texas, United StatesEcoservices
Kansas City, Kansas, United States(1)
Advanced Materials & Catalysts
Martinez, California, United StatesEcoservices
West Orange, Texas, United StatesEcoservices
Portland, Oregon, United StatesEcoservices
(1)    We lease a portion of the site to the Zeolyst Joint Venture.
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ITEM 3.    LEGAL PROCEEDINGS.
From time to time we may be subject to various legal claims and proceedings incidental to the normal conduct of business, relating to such matters as personal injury, product liability and warranty claims, waste disposal practices, release of chemicals into the environment and other matters that may arise in the ordinary course of our business. We currently believe that there is no litigation pending that is likely to have a material adverse effect on our business. Regardless of the outcome, legal proceedings can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.
ITEM 4.    MINE SAFETY DISCLOSURES.
Not applicable.
PART II
ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.
Market Information, Holders and Dividends
Our common stock trades on the New York Stock Exchange (“NYSE”) under the symbol “ECVT”. As of February 23, 2024, there were 11 shareholders of record of our common stock. A substantially greater number of holders of our common stock hold their shares in “street name” through banks, brokers and other financial institutions.
We have not and do not currently intend to pay regular dividends on our common stock in the foreseeable future. The declaration and payment of any future dividends by our Board of Directors is subject to compliance with the covenants contained in the agreements governing our credit facilities, applicable law and other considerations. See Note 16 to our consolidated financial statements included in this Form 10-K for information regarding covenant restrictions on the payment of dividends under our debt agreements.
Stock Performance Graph
The graph below shows the cumulative total shareholder return of our common stock for the period from December 31, 2018 to December 31, 2023 as compared to the cumulative total return of the Russell 2000 Total Return Index and the S&P 1500 Specialty Chemicals Index, assuming an investment of $100 made at the respective closing prices on December 31, 2018. The information contained in the graph below is furnished and therefore not to be considered “filed” with the SEC, and is not incorporated by reference into any document that incorporates this Form 10-K by reference.

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12/31/201812/31/201912/31/202012/31/202112/31/202212/31/2023
ECVT (formerly PQG)$100 $116 $110 $98 $85 $93 
Russell 2000100 126 151 173 138 161 
SP 1500 Spec Chem100 118 138 176 132 152 
Issuer Purchases of Equity Securities
The following table contains information about purchases of our common stock during the fourth quarter of 2023.
Total Number of
Shares of Common Stock
Purchased as Part of
Publicly Announced
Plan or Programs
Maximum Number
(or Dollar Value) of
Shares of Common Stock
that May Yet Be
Purchased Under the
Plans or Programs (3)
Total Number of
Shares of Common
Stock Purchased (1)
Average Price
Paid per Share of
Common Stock (2)
October 1, 2023 — October 31, 2023— $— $234,592 
November 1, 2023 — November 30, 2023— $— $234,592 
December 1, 2023 — December 31, 2023— $— $234,592 
Total— 
2022 Stock Repurchase Program
(1)    During the three months ended December 31, 2023, the Company did not repurchase shares on the open market or accrue excise tax related to these repurchases, net of shares issued under the Company’s equity incentive program. As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
(2)     Excludes brokerage commissions and other costs of execution.    
(3)    In April 2022, our Board of Directors approved a stock repurchase program that authorized the Company to purchase up to $450 million of the Company’s common stock over the four-year period from the date of approval. This program is expected to be funded using cash on hand and cash generated from operations. We primarily expect to conduct the repurchase program through negotiated transactions with the Company’s equity sponsors, as well as through open market repurchases or other means, including through Rule 10b-18 trading plans or through the use of other techniques such as accelerated share repurchases. The actual timing, number and nature of shares repurchased will depend on a variety of factors, including stock, price, trading volume, and general business and market conditions. The repurchase program does not obligate us to acquire any number of shares in any specific period or at all and may be amended, suspended or discontinued at any time at our discretion.
On August 16, 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA imposes a 15% corporate alternative minimum tax for certain large corporations with average annual adjusted financial statement income in excess of $1 billion for tax years beginning after December 31, 2022, levies a 1% excise tax on net stock repurchases after December 31, 2022, and provides tax incentives to promote clean energy. Historically the Company has made discretionary share repurchases under its share repurchase programs.
Tax Withholdings
(1)    In connection with the vesting of restricted stock awards, restricted stock units and performance stock units, shares of common stock may be delivered to the Company by employees to satisfy withholding tax obligations at the instruction of the employee award holders. These transactions when they occur, are accounted for as stock repurchases by the Company, with the shares returned to treasury stock at a cost representing the payment by the Company of the tax obligations on behalf of the employees in lieu of shares for the vesting unit. There were no such transactions during the three months ended December 31, 2023.
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ITEM 6.    [Reserved]
ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
Overview
We are a leading integrated and innovative global provider of advanced materials, specialty catalysts and services. We believe that our products and services contribute to improving the sustainability of the environment.
We conduct operations through two reporting segments: (1) Ecoservices and (2) Advanced Materials & Catalysts (including our 50% interest in the Zeolyst Joint Venture).
Ecoservices: We are a leading provider of sulfuric acid recycling to the North American refining industry for the production of alkylate, an essential gasoline component for lowering vapor pressure and increasing octane to meet stringent gasoline specifications and fuel efficiency standards. We are also a leading North American producer of high quality and high strength virgin sulfuric acid for industrial and mining applications. We also provide chemical waste handling and treatment services, as well as ex-situ catalyst activation services for the refining and petrochemical industry.
Advanced Materials & Catalysts: We are a global supplier of finished silica catalyst, catalyst supports and functionalized silicas necessary to produce high performing plastics and to enable sustainable chemistry. This segment includes our 50% interest in the Zeolyst Joint Venture, where we are a leading global supplier of zeolites used for catalysts that support the production of sustainable fuels, remove nitrogen oxides from diesel engine emissions and are broadly applied in refining and petrochemical processes.
Effective November 28, 2023, the Company renamed the Catalyst Technologies segment to Advanced Materials & Catalysts. Beginning with the year ended December 31, 2023, the segment results and disclosures included in the Company’s consolidated financial statements reflect the new segment name for all periods presented. This change to the Company’s segment name does not change the Company’s consolidated balance sheets, statements of income or cash flows for the prior periods or the way the Company’s chief operating decision maker (“CODM”) evaluated the business.
In 2023, we served global customers across many end uses and, as of December 31, 2023, operated out of ten strategically located manufacturing facilities.
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P. Effective on August 1, 2021, we completed the sale of our Performance Chemicals business to Sparta Aggregator L.P., a partnership with Koch Minerals & Trading, LLC and Cerberus Capital Management, L.P. The results of operations, financial condition, and cash flows for the Performance Materials and Performance Chemicals businesses are presented herein as discontinued operations for the 2022 and 2021 periods presented. Refer to Note 4 of our consolidated financial statements for additional information.
Economic Effects on our Business and Results
We continue to monitor the developments in Russia and Ukraine, as well as the related economic sanctions and export controls imposed on certain industry sectors. Although the current conflict has created global economic and political uncertainties and affected certain supply chain disruptions, we do not believe we have good relationships with our employeessignificant exposure in those countries. We have no operations in Russia or Ukraine. We had no sales to customers in Ukraine and their respective works councils, unions or other bargaining representatives. Further, atRussia in December 31, 2020, approximately 25% of2023 and our U.S.-based executives, managers and professionalssales to a customer in Russia were women.
This international strength, supported by our core values of integrity and fairness, fosters a rich culture founded on diverse of thought. We firmly believe that success is achieved through the intellect and commitment of our people, so we employ a long-term human capital program to attract, retain and develop talentimmaterial for the future.year ended December 31, 2022 and 2% for the year ended December 31, 2021. We are proudalso did not make any purchases from suppliers in Russia or Ukraine. As Russia’s invasion of our highly collaborative teams that enable an inclusive workplace where employees are encouragedUkraine continues to bring their own experiencesunfold, we will continue to promote innovation from all levels ofmonitor compliance with sanctions imposed by the organization. This constructive work environment has been re-enforced with the recent implementation of a fully integrated on-line performance management process that improves the communication of aligned goals, encourages consistent feedbackU.S. government and furthers employee engagement. Today, there are women on the management teams of each of our businesses as well as in all our functions: R&D, Finance, HSE and Human Resources.other countries.
While the COVID-19 pandemic limited the opportunities for in-person engagement in our communities, our sites continued to support food security programs and people in need across our global network. For example, our Hammond site supported efforts to stock food pantries through their participation with the local United Way and Heels for Meals programs. The Malvern office continued its support for local families with donations to the Pennridge FISH Organization.
Governance
Our governance programs and policies can be found in the Company’s Ethics section of the sustainability webpages, which is routinely updated and includes our policies on child labor, human trafficking, anti-harassment, antibribery, and cyber security all of which are evaluated by third-parties, including Ecovadis. Our 2020 Ecovadis Assessment scored PQ’s Ethics response in the top quartile of our sector category, basic chemicals. We continue to monitor the developments in the Middle East. Although the Company experienced shipment delays, the impact remained immaterial on our business.
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2022 Stock Repurchase Program
On April 27, 2022, the Board approved a stock repurchase program that authorized the Company to purchase up to $450 million of the Company’s common stock over the four-year period from the date of approval. During the year-ended December 31, 2023, the Company repurchased 541,494 shares on the open market at an average price of $9.85 per share, for a total of $5.3 million, excluding brokerage commissions and accrued excise tax. Additionally, in connection with secondary offerings of the Company’s common stock in March and May 2023, the Company repurchased 7,000,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $10.48 per share concurrently with the closing of the offerings, for a total of $73.4 million, excluding accrued excise tax.
As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
During the year-ended December 31, 2022, the Company repurchased 1,970,763 shares on the open market at an average price of $9.82 per share, for a total of $19.4 million, excluding brokerage commissions. Additionally, in connection with secondary offerings of the Company’s common stock in August and November 2022, the Company repurchased 14,500,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $8.09 per share concurrently with the closing of the offerings, for a total of $117.3 million.
Basis of Presentation
Our zeolite catalysts product group operates through the Zeolyst Joint Venture, which we account for as an equity method investment in accordance with accounting principles generally accepted in the United States (“GAAP”). We do not record sales by the Zeolyst Joint Venture as revenue and such sales are not consolidated within our results of operations. However, net income and Adjusted EBITDA reflects our share of the earnings of the Zeolyst Joint Venture that have been recorded as equity in net income from affiliated companies in our consolidated statements of income and includes Zeolyst Joint Venture adjustments on a proportionate basis based on our 50% ownership interest.
Key Performance Indicators
Adjusted EBITDA and Adjusted Net Income
Adjusted EBITDA and adjusted net income are financial measures that are not prepared in accordance with GAAP and that we use to evaluate our operating performance, for business planning purposes and to measure our performance relative to that of our competitors. Adjusted EBITDA and adjusted net income are presented as key performance indicators as we believe these financial measures will enhance a prospective investor’s understanding of our results of operations and financial condition. EBITDA consists of net income (loss) attributable to continuing operations before interest, taxes, depreciation and amortization. Adjusted EBITDA consists of EBITDA adjusted for (i) non-operating income or expense, (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) and EBITDA that we do not consider indicative of our ongoing operating performance, and (iii) depreciation, amortization and interest of our 50% share of the Zeolyst Joint Venture. Adjusted net income consists of net income (loss) adjusted for (i) non-operating income or expense and (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) that we do not consider indicative of our ongoing operating performance. We believe that these non-GAAP financial measures provide annual Codeinvestors with useful financial metrics to assess our operating performance from period-to-period by excluding certain items that we believe are not representative of Conduct trainingour core business.
You should not consider Adjusted EBITDA or adjusted net income in isolation or as alternatives to the presentation of our financial results in accordance with GAAP. The presentation of Adjusted EBITDA and adjusted net income financial measures may differ from similar measures reported by other companies and may not be comparable to other similarly titled measures. In evaluating Adjusted EBITDA and adjusted net income, you should be aware that we are likely to incur expenses similar to those eliminated in this presentation in the future and that certain of these items could be considered recurring in nature. Our presentation of Adjusted EBITDA and adjusted net income should not be construed as an inference that our future results will be unaffected by unusual or nonrecurring items. Reconciliations of Adjusted EBITDA and adjusted net income to GAAP net income (loss) are included in the results of operations discussion that follows for each of the respective periods.
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Key Factors and Trends Affecting Operating Results and Financial Condition
Sales
Overall, our Ecoservices and Advanced Materials & Catalysts segments continued to benefit from demand trends for our products and services in the industries we serve. While sales of our virgin sulfuric acid into the production of nylon intermediates and sales of polyethylene catalysts weakened in the second half of 2023, demand across the balance of product categories, end-uses and customers throughout 2023 remained positive. Contractual pass-through mechanisms and targeted price increases have served to mitigate the adverse impacts of inflationary pressures in 2023, including higher variable costs on our businesses and supply chain constraints, including limited availability and higher costs for energy, logistics, and other raw materials.
Cost of Goods Sold
Cost of goods sold consists of variable product costs, fixed manufacturing expenses, depreciation expense and freight expenses. Variable product costs include all raw materials, energy and packaging costs that are directly related to the manufacturing process. Fixed manufacturing expenses include all plant employment costs, manufacturing overhead and periodic maintenance costs.
The primary raw materials for our global employeesEcoservices segment include spent sulfuric acid, sulfur, acids, bases (including sodium hydroxide, or “caustic soda”), and have enhancedcertain metals. Spent sulfuric acid for our delivery with online learning modules.Ecoservices segment is supplied by customers for a nominal charge as part of their contracts. The primary raw materials used in the manufacture of products in our Advanced Materials & Catalysts segment include sodium silicate and cesium hydroxide. During the second quarter of 2023, inflationary pressures began to ease, which reduced the cost of goods for sulfur, energy, logistics and other raw materials.
Most of our Ecoservices contracts feature take-or-pay volume protection and/or quarterly price adjustments for commodity inputs, labor, the Chemical Engineering Index (U.S. chemical plant construction cost index) and natural gas. Over 80% of our Ecoservices segment sales for the year ended December 31, 2023 were under contracts featuring quarterly price adjustments. The price adjustments generally reflect actual costs for producing acid and tend to protect us from volatility in labor, fixed costs and raw material pricing. The take-or-pay volume protection allows us to cover fixed costs through intermittent, temporary production issues at customer refineries.
While natural gas is not a direct feedstock for any product, natural gas powered machinery and equipment are used to heat raw materials and create the chemical reactions necessary to produce end-products. We maintain multiple suppliers wherever possible and structure our customer contracts when possible to allow for the pass-through of raw material, labor and natural gas costs.
Environmental Regulations
We are subject to extensive, evolving and increasingly stringent national, andstate and/or local environmental laws and regulations, which address, among other things, the following:
emissions to the air;
discharges to soils and surface and subsurface waters;
other releases into the environment;
prevention and remediation of releases into the indoor or outdoor environment;
generation, handling, storage, transportation, treatment and disposal of waste materials;
maintenance of safe conditions in the workplace;
registration and evaluation of chemicals;
production, handling, labeling or use of chemicals used or produced by us; and
stewardship of products after manufacture.
WeAgain, we apply the principles of the Environmental Management standard of the International Organization for Standardization (ISO 14001) at our facilities throughout the world. For chemical facilities in the United States, we also adhere to the Responsible Care RC14001 Technical Specifications of the American Chemistry Council.

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We maintain policies and procedures to monitor and control health, safety, and environmentalHSE risks, and to monitor compliance with applicable state, national, and international health, safety, and environmentalHSE requirements. We have a strong health, safety, environmentalHSE organization. We havemaintain a staff of professionals who are responsible for environmental, safety, health and product regulatory compliance. We have implemented a corporate audit program for all of our facilities. However, we cannot provide assurance that we will be in full compliance at all times with all applicable environmental laws and regulations. We expect that stringent environmental regulations will continue to be imposed on us and our industry in general. Evolving chemical regulation programs throughout the world could impose testing requirements or restrictions on our chemical raw materials and products.
Environmental Remediation.
Environmental laws and regulations require mitigation or remediation of the effects of the disposal or release of chemical substances. Under some of these regulations, as the current or former owner or operator of a property, we could be held liable for the costs of removal or remediation of hazardous substances on or under the property, without regard to whether we knew of or caused the contamination, and regardless of whether the practices that resulted in the contamination were permitted at the time they occurred. Many of our current or former production sites have an extended history of industrial use, and it is impossible to predict precisely what effect these laws and regulations will have on us in the future. Soil and groundwater contamination requiring investigation and remediation has been discovered at some of the sites, and might occur or be discovered at other sites. Several active and former facilities currently are undergoing investigation and remediation, including sites in Dominguez, CA;CA and Martinez, CA; Rahway, NJ; and Tacoma, WA.CA.
Environmental Programs.
We have comprehensive health, safety and environmentalHSE compliance, auditing and management programs in place to assist in our compliance with applicable regulatory requirements and with internal policies and procedures, as appropriate. Each facility has developed and implemented specific critical occupational health, safety, environmental, security and loss control programs.
We also have implemented a Health, Safety and Environmental (“HSE”)HSE organizational structure with executive committee level leadership and dedicated environmental experts. We have a Global Director of Health, Safety and Process Safety Management as well as Regional HSE Specialists and Managers who are embedded in the field and provide HSE expertise and support to operating sites. Certain, larger sites may have dedicated environmental or safety personnel.
 
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Product Safety and Product Stewardship
We have established a Product Safety and Product Stewardship management system that is compliant with the RC14001 technical specification and is supported by twoa highly skilled Director of Product Stewardship, Managers, one of whichwho is a REACH“Registration, Evaluation, Authorisation and Restriction of Chemicals” (“REACH”) Specialist. We conduct Product Stewardship reviews as part of new product development and routinely evaluate product safety risk for raw materials, intermediates, and products.
As a chemical company, we are subject to extensive and evolving regulations regarding the manufacturing, processing, distribution, importing, exporting, and labeling of our products and their raw materials. In the European Union, the REACH regulations came into effect in 2007, with implementation rolling out over time. Registered chemicals then can be subject to further evaluation and potential restrictions. Our high-volume chemicals have been registered under REACH; lower-volume chemicals (mainly catalysts) were registered by the applicable 2018 deadline. To date, no further testing has been required.
Since the promulgation of REACH, other countries have enacted or are in the process of implementing similar comprehensive chemical regulations. These programs include the Korea REACH law, which is requiring registration and
potential testing of chemicals, and similar programs under developmentimplemented in the UK, Taiwan, Turkey, India, and elsewhere. In the US, all pertinent chemicals have been designated as “active” under the US EPA Frank R. Lautenberg Chemical Safety for the 21st Century Act. At this time, none have been designated as chemicals which the EPA will prioritize and evaluate for regulation. Based on our chemicals and the various regulations promulgated to date, we do not anticipate costly testing requirements nor severe restrictions, but cannot guarantee that we will not be subject to requirements for our products or raw materials that could materially affect our operations. In particular, some of our products might be characterized as nanomaterials and then be subject to evolving, new nanomaterial regulations.
We remain alert for any regulatory changes which may impact our products and their end uses. In the EU, we are actively working with other industry partners to challenge the recent draft proposal concerning potential listing of silica on Annex II of the regulation on cosmetic products (substances prohibited in cosmetic products).

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Available Information
Our website address is www.pqcorp.com.www.ecovyst.com. We make available free of charge through our website our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended (“Exchange Act”), as well as reports on Forms 3, 4 and 5 filed pursuant to Section 16 of the Exchange Act, as soon as reasonably practicable after such documents are electronically filed with, or furnished to, the Securities and Exchange Commission (“SEC”). The SEC maintains an Internet website, http://www.sec.gov, which contains reports, proxy and information statements, and other information regarding our Company and other issuers that file electronically with the SEC. The information on our website is not, and shall not be deemed to be, a part of this report or incorporated into any other filings we make with the SEC.
Our Corporate Governance Guidelines, Code of Business Conduct and the charters of the Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and Health, Safety and Environment Committee of our Board of Directors are also available on our website and are available in print to any shareholder upon request by writing to PQEcovyst Investor Relations, 300 Lindenwood Drive, Malvern, PA 19355. In accordance with SEC rules, we intend to disclose any amendment (other than any technical, administrative or other non-substantive) to the Code of Business Conduct, or any waiver of any provision thereof with respect to any of our executive officers, on our website within four business days following such amendment or waiver.
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ITEM 1A.    RISK FACTORS.
In addition to the other information contained in this Form 10-K, you should carefully consider the following risks that we believe are the material risks that we face. The risks described below could have a material adverse impact on our business, financial condition, cash flows and results of operations, and should be read together and in conjunction with the forward-looking statements and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in Item 7 of this Form 10-K, and our consolidated financial statements and the accompanying notes thereto.

Risks Related to Our Business Operations
As a global business, we are exposed to local business risks in different countries, which could have a material adverse effect on our financial condition, results of operations and cash flows.
We have significant operations in manyseveral countries, including manufacturing sites, research and development facilities, sales personnel and customer support operations. As of December 31, 2020,2023, we operated 40ten manufacturing facilities across five continents.facilities. For the year ended December 31, 2020,2023, our foreign subsidiaries accounted for 40%6% of our sales. Our operations are affected directly and indirectly by global regulatory, economic, political and politicalsocial conditions, including:
new and different legal and regulatory requirements in local jurisdictions;
export duties or import quotas;
domestic and foreign customs and tariffs or other trade barriers, including the threat of escalating trade disputes that may result in higher tariffs;tariffs and the imposition of trade sanctions against certain countries, persons and entities;
potential difficulties in staffing and labor disputes;
potential difficulties in managing and obtaining support and distribution for local operations;
increased costs of, and availability of, raw materials, energy, transportation or shipping;
credit risk and financial condition of local customers and distributors;
potential difficulties in protecting intellectual property rights;
risk of nationalization of private enterprises by foreign governments;
potential imposition of restrictions on investments;
the imposition of withholding taxes or other taxes or royalties on our income, or the adoption of other restrictions on foreign trade or investment, including currency exchange controls;
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capital controls;
potential difficulties in obtaining and enforcing legal judgments in jurisdictions outside the United States;
potential difficulties in obtaining and enforcing relief in the United States against parties located outside the United States;
potential difficulties in enforcing agreements and collecting receivables;
risks relating to environmental, health and safety matters;
regional conflicts, such as the invasion of Ukraine by Russia and the conflict involving Israel and Hamas and potentially other countries in the Middle East;
risks relating to information security and cyber security events;
risks relating to epidemics and pandemics includingand effects caused by the spread of COVID-19 (coronavirus) and variants thereof;therefrom; and
local political, economic and social conditions, including the possibility of hyperinflationary conditions and political instability in certain countries.
We may not be successful in developing and implementing policies and strategies to address the foregoing factors in a timely and effective manner at each location where we do business. Consequently, the occurrence of one or more of
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the foregoing factors could have a material adverse effect on our international operations or upon our financial condition, results of operations and cash flows.

Our operations and financial results have been and may continue to be adversely affected by general economic conditions.
We sell performance chemicals,advanced materials, catalysts and services that are used in manufacturing processes and as components of, or ingredients in, other products and, as a result, our sales are correlated with and affected by fluctuations in the level of industrial production and manufacturing output and by fluctuations in general economic activity. Producers of performance chemicals, in particular, are likely to reduce their output in periods of significant contraction in industrial and consumer demand, while demandDemand for the products we manufacture often depends on trends in demand in the end uses our customers serve. General economic conditions and macroeconomic trends, including economic recessions and inflation, could affect overall demand for our products and any overall decline in such demand could significantly reduce our sales and profitability. In addition, volatility and disruption in financial markets could adversely affect our sales and results of operations by limiting our customers’ ability to obtain the financing necessary to maintain or expand their own operations.
Unfavorable global economic conditions could adversely affect our business, financial condition, and results of operations.
Our results of operations could be adversely affected by general conditions in the global economy and in the global financial markets. For example, during the ongoing COVID-19 pandemicpast several years the global economy has experienced extreme volatility and disruptions, including significant volatility in commodity and market prices, including increasing energy prices, volatility in sulfur prices, declines in consumer confidence, declines in economic growth, supply chain interruptions, uncertainty about economic stability, record inflation globally, rising interest rates and the associatedthreat of recession. Unfavorable economic downturn affected our financial results during 2020, and the prolonged continuation of the COVID-19 pandemicconditions could result in a sustainedvariety of risks to our business, including demand and pricing for our products and difficulty in forecasting our financial results. A weak or furtherdeclining economy also could strain our suppliers, possibly resulting in supply chain disruptions. In addition, inflation has increased our costs, which could impact our profitability. These and other economic downturn that may continue to affectfactors could adversely impact our operationsbusiness and financial results.results of operations.
Exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows.
As a result of our international operations, for the year ended December 31, 2020,2023, we generated 40%6% of our sales and incurred a significant portion of ourassociated expenses in currencies other than U.S. dollars. We incur currency transaction risk whenever we enter into either a purchase or sale transaction using a currency other than the local currency of the transacting entity. The main currencies to which we are exposed, besides the U.S. dollar, are the Euro British pound, Canadian dollar, Mexican peso and the Brazilian real.British pound. The exchange rates between these currencies and the U.S. dollar have fluctuated significantly in recent years and may continue to do so in the future. In many cases, we sell exclusively in those jurisdictions and do not have the ability to mitigate our exposure to currency fluctuations through our operations. Accordingly, to the extent that we are unable to match sales made in such foreign currencies with costs paid in the same currency, exchange rate fluctuations could adversely affect our financial condition, results of operations and cash flows. In the past, we have experienced economic loss and a negative impact on earnings as a result of foreign currency exchange rate fluctuations and any future fluctuations may have similar or greater impacts. We expect that the amount of our sales denominated in non-U.S. dollar currencies may increase in future periods. Given the volatility of exchange rates, there can be no assurance that we will be able to effectively manage our currency transaction risks or that any volatility in currency exchange rates will not have a material adverse effect on our financial condition or results of operations. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Quantitative and Qualitative Disclosures about Market Risk.”

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Additionally, because our consolidated financial results are reported in U.S dollars, the translation of sales or earnings generated in other currencies into U.S. dollars can result in a significant increase or decrease in the amount of those sales or earnings in our financial statements, which also affects the comparability of our results of operations and cash flows between financial periods.
Our international operations require us to comply with anti-corruption laws, tradeeconomic sanctions, export controls and export controlssimilar laws and regulations of the U.S. government and various international jurisdictions in which we do business.
Doing business on a worldwide basis requires us and our subsidiaries to comply with the laws and regulations of the U.S. government and various international jurisdictions, and our failure to successfully comply with these laws and regulations may restrict our operations, trade practices, investment decisions and partnering activities and may expose us to liabilities. Such laws and regulations apply to companies, individual directors, officers, employees and agents.
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In particular, our international operations are subject to U.S. and foreign anti-corruption laws and regulations, such as the Foreign Corrupt Practices Act (“FCPA”) and the U.K. Bribery Act (“UKBA”). TheAct. For example, the FCPA prohibits us from providing anything of value to foreign officials for the purposes of influencing official decisions or obtaining or retaining business or otherwise obtaining favorable treatment, and requires us to maintain adequate record-keeping and internal accounting practices to accurately reflect our transactions. As part of our business, we may deal with state-owned business enterprises, the employees and representatives of which may be considered foreign officials for purposes of the FCPA and UKBA.FCPA. In addition, some of the international locations ininto which we operatesell our products lack a developed legal system and have elevated levels of corruption. As a result, of our international operations, we are exposed to the risk of violating anti-corruption laws.corruption-related risk.
In addition, we are subjectrequired to comply with applicable economic sanctions, export controls, and economic sanctionssimilar laws and regulations imposed by the U.S. government and other countries. Changes in suchThese laws and regulations may restrict our business practices, or the counterparties or regions with which we can trade. In addition, these laws and regulations are subject to frequent change, and such changes may require us to adjust our business practices, including cessation ofby ceasing business activities in newly sanctioned countries or regions or with newly sanctioned entities or individuals, or to modify our compliance program. For example, the invasion of Ukraine by Russia and the related sanctions, export controls or other actions that have been or may resultbe initiated by nations—including the U.S., the European Union, the United Kingdom, and Russia—could disrupt or otherwise adversely impact our customers in modifications to compliance programs. Violationsthose countries, as well as adversely impact our business or our supply chain, business partners or customers in other countries beyond Ukraine and Russia. Further, violations of these legal requirements are punishable by criminal fines and imprisonment, civil penalties, disgorgement of profits, injunctions, debarment from government contracts, loss of export privileges and other remedial measures.
We have established policies and procedures designed to assist us and our personnel in complying with applicable U.S. and international laws and regulations. These policies and procedures are codified in our Code of Conduct and other various policies. However, there can be no assurance that our policies and procedures will effectively prevent us from violating these laws and regulations in every transaction in which we may engage, and such a violation could subject us to governmental investigations and adversely affect our reputation, business, financial condition and results of operations.
Alternative technology or other changes in our customers’ products may reduce or eliminate the need for certain of our products.
Many of the products that we sell are used in manufacturing processes and as components of and/or ingredients into produce other products and, as a result, changes in our customers’ end products or processes or alternative technologies may enable our customers to reduce or eliminate consumption or use of our products. For example, the ongoing shift in customer preferences in the detergent industry from powders to liquid has resulted in lower demand for certain types of zeolites. Additionally, shifting consumer preference could result in a significant reduction in the future use of fossil fuels, which would have a negative impact on our zeolite catalysts and refining services.Ecoservices businesses. If we are unable to respond appropriately to such new developments, such changes could seriously impair our ability to profitably market certain of our products.

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Our new product development and research and development efforts may not succeed and our competitors may develop more effective or successful products.
The industries in which we operate are subject to periodic technological changes and ongoing product improvements. In order to maintain our margins and remain competitive, we must successfully develop, manufacture and market new or improved products. As a result, we must commit substantial resources each year to new product research and development. Ongoing investments in new product research and development could result in higher costs without a proportional increase in revenues. Additionally, for any new product program, there is a risk of technical or market failure, in which case we may need to commit additional resources to the program and may not be able to develop the new products needed to maintain our competitive position. Moreover, new products may have lower margins than the products they replace or may not successfully attract end users.
We also expect competition to increase as our competitors develop and introduce new and enhanced products. As such products are introduced, our products may become obsolete or our competitors’ products may be marketed more effectively. If we fail to develop new products, maintain or improve our margins with our new products or keep pace with technological developments, our business, financial condition, results of operations and cash flows will suffer.

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If we are unable to pass on increases in raw material prices, including natural gas, to our customers or to retain or replace our key suppliers, our results of operations and cash flows may be negatively affected.
We purchase significant amounts of raw materials, including soda ash, industrial sand, aluminum trihydrate, sodium hydroxide (commonly known as caustic soda)precursor products in our Advanced Materials & Catalysts business and sulfur (including hydrogen sulfide), in our Performance Chemicals and Refining Services segments,Ecoservices business, and we purchase significant amounts of natural gas to supply the energy required in our production process. The cost of these raw materials represents a substantial portion of our operating expenses and our results of operations have been, and could in the future be, significantly affected by increases in the costs of such raw materials. In addition, we obtain a significant portion of our raw materials from certain key suppliers. If any of those suppliers is unable to meet its obligations under current or future supply agreements, we may be forced to pay higher prices to obtain the necessary raw materials. Furthermore, if any of the raw materials that we use become unavailable within the geographic area from which we currently source them, we may not be able to obtain suitable and cost-effective substitutes. Any interruption of supply or any price increase of raw materials could adversely affect our profitability.
While we attempt to match raw material price increases with corresponding product price increases, our ability to pass on increases in the cost of raw materials to our customers is, to a large extent, dependent upon our contractual arrangements and market conditions. There may be periods of time during which we are not able to recover increases in the cost of raw materials due to our contractual arrangements or weakness in demand for, or oversupply of, our products. Specifically, timing differences between price adjustments of raw materials which may occur daily, and adjustments to our product prices, which in many cases are adjusted quarterly or less often, have had and may continue to have a negative effect on our profitability. Even in periods during which raw material prices decline, we may suffer decreasing profits if customers seek relief in the form of lower sales prices or if the raw material price reductions occur at a slower rate than decreases in the selling prices of our products. Furthermore, some of our performance chemicals customers may take advantage of fluctuating prices by building inventories when they expect product prices to increase and reducing inventories when they expect product prices to decrease. Such volatility can result in commercial disputes with customers and suppliers with respect to interpretations of complex contractual arrangements, the adverse resolution of which could reduce our profitability.
In the past, we have entered into long-term supply contracts for certain of our raw materials, including for certain of our North American soda ash purchases.materials. As these contracts expire, we may not be able to renegotiate or enter into new long-term supply contracts that will offer similar protection from price increases and other fluctuations on terms that are satisfactory to us or at all. For example, a contract for the supply of caustic soda expired at the end of 2019 and we incurred increased costs to obtain caustic soda in 2020 because the replacement contract increased the price we paid for that raw material.

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We face substantial competition in the industries in which we operate.
The industries in which we operate are highly competitive and we face significant competition from large international producers and, particularly in Europe and certain Asia-Pacific regions, smaller regional competitors. Our Advanced Materials & Catalysts segment primarily competes with other global producers in the petrochemicals and refining industries such as W.R. Grace, BASF, UOP, and Albemarle, as well as other niche competitors such as Tosoh, Axens, and Haldor Topsoe. WeIn our Ecoservices segment, we compete in the North American refining services industry with competitors such as Chemtrade and Veolia.Additionally, in our Performance Chemicals segment, we primarily compete with other global producers such as OxyChem, Grace and Evonik. We believe that we typically compete on the basis of performance, product consistency, quality, reliability, and ability to innovate in response to customer demands.
Our competitors may improve their competitive position in our core end use applications by successfully introducing new products, improving their manufacturing processes, expanding their capacity or manufacturing facilities or responding more effectively than we do to new or emerging technologies and changes in customer requirements. Some of our competitors may be able to lower prices for products that compete with our products if their costs are lower. In addition, consolidation among our competitors or customers may result in reduced demand for our products or make it more difficult for us to compete. Some of our competitors’ financial, technological and other resources may be greater than ours or they may have less debt than we do and, as a result, may be better able to withstand changes to industry conditions. The occurrence of any of these events could materially adversely affect our financial condition and results of operations.
We are subject to the risk of loss resulting from non-payment or non-performance by our customers.
Our credit procedures and policies may not be adequate to minimize or mitigate customer credit risk. Our customers may experience financial difficulties, including bankruptcies, restructurings and liquidations. These and other financial problems our customers may experience, as well as potential financial weakness in the industries in which we operate or general economic conditions, may increase our risk in extending trade credit to customers. A significant adverse change in a customer’s financial position could cause us to limit or discontinue business with such customer, require us to assume more credit risk relating to such customer’s receivables or limit our ability to collect accounts receivable from such customer, any of which could have a material adverse effect on our business, results of operations, financial condition and liquidity.
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We rely on a limited number of customers for a meaningful portion of our business. A loss of one or more of these customers could adversely impact our profitability.
A loss of any significant customer, including a pipeline customer in our Ecoservices segment, or a decrease in the provision of products to any significant customer could have an adverse effect on our business until alternative arrangements are secured. Any alternative arrangement to replace the loss of a customer could result in increased variable costs relating to product shipment. In addition, any new customer agreement we enter into may not have terms as favorable as those contained in our current customer agreements, which could have a material adverse effect on our business, financial condition and results of operations. For the year ended December 31, 20202023, our top 10ten customers represented approximately 30%60% of our sales and noone single customer represented more than 5%13% or $91.5 million of our sales.sales in both Ecoservices and Advanced Materials & Catalysts.
Refineries, which represent a sizable subset of our Refining ServicesEcoservices segment customer base, have undergone significant consolidation and additional consolidation is possible in the future. Such consolidation could further increase our reliance on a small number of customers and further increase our customers’ leverage over us, resulting in downward pressure on prices and an adverse effect on our profitability.

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Multi-year customer contracts in our Refining ServicesEcoservices segment are subject to potential early termination and such contracts may not be renewed at the end of their respective terms.
Many of the customer contracts in our Refining ServicesEcoservices segment are multi-year agreements. Sulfuric acid regeneration customer contracts are typically on five- to ten-year terms and virgin sulfuric acid customer contracts are typically on one- to five-year terms, with larger customers typically favoring longer terms. Excluding contracts with automatic evergreen provisions, approximately 40%20% of our sulfuric acid volume for the year ended December 31, 20202023 was under contracts expiring at the end of 20212024 or beyond. In addition, our sulfuric acid regeneration contracts with major refinery customers typically allow for termination with advance notice of one to two years. We cannot provide assurance that our existing contracts will not be subjected to early terminations or that our expiring contracts will be renewed at the end of their terms. If we receive a significant number of such contract terminations or experience non-renewals from key customers in our Refining ServicesEcoservices segment, our results of operations, financial condition and cash flows may be materially adversely affected.
Our quarterly results of operations are subject to fluctuations because the demand for some of our products is seasonal.
Our Refining ServicesEcoservices segment typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer months. Because of the seasonality of some of our product groups, the results for any one quarter are not necessarily indicative of the results that may be achieved for any other quarter or for the full year.
Our growth projects may result in significant expenditures before generating revenues, if any, which may materially and adversely affect our ability to implement our business strategy.
We have made and continue to make significant investments in each of our businesses. These projects require us to commit significant capital to, among other things, implement engineering plans and obtain the necessary permits before we generate revenues related to our investments in these businesses. Such projects may take longer to complete or require additional unanticipated expenditures and may never generate profits. If we fail to recover our investment, or these projects never become profitable, our ability to implement our business strategy may be materially and adversely affected.
We may be liable for damages based on product liability claims brought against us or our customers for costs associated with recalls of our or our customers’ products.
Even though we are generally aan advanced materials and services supplier rather than a manufacturer of finished goods, the sale of our products involves the risk of product liability claims and voluntary or government-ordered product recalls. For example, certain of the products that we manufacture provide critical performance functions toare used in chemical manufacturing processes in our customers’ end productsmanufacturing operations and are used in and around other chemical manufacturing facilities and other locations where personal injury or property damage may occur or are used in certain consumer goods such as beverages, personal care products and medicinal applications.occur. While we attempt to protect ourselves from product liability claims and exposures through our adherence to standards and specifications, quality control and assurance and through contractual negotiations and provisions, there can be no assurance that our efforts will ultimately protect us from any such claims. A product liability claim or voluntary or government-ordered product recall could result in substantial and unexpected expenditures, affect consumer or customer confidence in our products and divert management’s attention from other
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responsibilities. A product recall or successful product liability claim or series of claims against us in excess of our insurance coverage and for which we are not otherwise indemnified could have a material adverse effect on our business, financial condition, results of operations or cash flows. We have product liability insurance in amounts that we believe are adequate to cover this product liability risk. However, our insurance may not provide adequate coverage against all potential liabilities, including product recall liabilities. If a claim is brought against us, we might be required to pay legal and other expenses to defend the claim, as well as pay uncovered damage awards resulting from a claim brought successfully against us and these damages could be significant and have a material adverse effect on our financial condition. Furthermore, whether or not we are ultimately successful in defending any such claims, we might be required to direct significant financial and managerial resources to such defense and adverse publicity is likely to result.
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We are required to comply with a wide variety of laws and regulations, and are subject to regulation by various federal, state and foreign agencies, and our failure to comply with existing and future regulatory requirements could adversely affect our financial condition, results of operations and cash flows.
We compete in industries in which we and our customers are subject to federal, state, local, international and transnational laws and regulations. Such laws and regulations are numerous and sometimes conflicting, and any future changes to such laws and regulations could adversely affect us.
In order to obtain regulatory approval for certain of our new products, we must, among other things, demonstrate to the relevant authority that the product is safe and effective for its intended uses and that we are capable of manufacturing the product in accordance with current regulations. The process of seeking approvals can be costly, time-consuming and subject to unanticipated and significant delays. Any delay in obtaining, or any failure to obtain or maintain, these approvals would adversely affect our ability to introduce new products and to generate sales from those products, and could have an adverse effect on our business, financial condition, results of operations or cash flows.
Our products, including the raw materials we handle, are subject to rigorous chemical registration and industrial hygiene regulations and investigation. There is risk that a key raw material, chemical or substance, or one of the end products of which our products are a part of or are utilized to make, may be recharacterized as having a toxicological or health-related impact on the environment, our customers or our employees. Industrial hygiene regulations are continually strengthened and if such recharacterization occurs, the relevant raw material, chemical or product may be banned or we may incur increased costs in order to comply with new requirements. Changes in industrial hygiene regulations also affect the marketability of certain of our products, and future regulatory changes may have a material adverse effect on our business.
New laws and regulations, and changes in existing laws and regulations, may become effective in the future and could prevent or inhibit the development, distribution and sale of our products, including, but not limited to, the imposition of additional compliance costs, seizures, confiscation, recall or monetary fines. For example, as discussed in more detail in “Business-Environmental Regulations” and “Business-Chemical Product Regulation,” we may be materially impacted by regulatory initiatives worldwide with respect to chemical product safety such as the 2016 amendments to the U.S. Toxic Substances Control Act, the E.U. REACH regulation, “Registration, Evaluation, Authorisation and Restriction of Chemicals” (“REACH”), and/or similar regulations being enacted in other countries (e.g., China REACH; Korea REACH). Additionally, the current or future U.S. administrationadministrations may seek to tighten current environmental standards and regulations, including, but not limited to, the Corporate Average Fuel Economy standards, which could have a material adverse effect on our sales into the clean fuels, emission control and emission controlsother industries.
We are subject to extensive environmental, health and safety regulations and face various risks associated with potential non-compliance or releases of hazardous materials.
Like other chemical companies, our operations and properties are subject to extensive and stringent federal, state, local and foreign environmental laws and regulations. U.S. federal environmental laws that affect us include, but are not limited to, the Resource Conservation and Recovery Act (“RCRA”), the Clean Air Act, the Clean Water Act and the Comprehensive Environmental Response Compensation and Liability Act (“CERCLA”). These laws govern, among other things, emissions to the air, discharges or releases of hazardous substances to land, surface, subsurface strata and water, wastewater discharges and the generation, handling, storage, transportation, treatment, disposal and remediation of hazardous materials and petroleum products. We are also subject to other federal, state, local and foreign laws and regulations regarding chemical and product safety as well as employee health and safety matters, including process safety requirements. These laws and regulations may become more stringent over time and the failure to comply with such laws and regulations can result in significant fines or penalties.

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We have in the past been and currently are the subject of investigations and enforcement actions pursuant to environmental laws, including the Clean Air Act. Some of these matters were resolved through the payment of significant monetary penalties and a requirement to implement corrective actions at our facilities. For instance, we remain subject to a 2007 Consent Decree that resolves certain alleged Clean Air Act violations at our seven refining servicessix Ecoservices operating locations involving New Source Review, Prevention of Significant Deterioration and New Source Performance Standard obligations under the U.S. federal rules for the pollutants sulfur dioxide and sulfuric acid mist. The Consent Decree required Solvay (the owner of such facilities at the time) to pay a $2 million penalty and spend approximately $34 million on air pollution controls at our facilities, the majority of which was received from customers in contractual arrangements. Work under the Consent Decree has proceeded since 2007, and we believe that all of the significant capital improvements related to the Consent Decree have been completed. OneThree of our operating locations hashave been released from the scope of the Consent Decree and we are seeking release of the other locations covered by the Consent Decree. Upon issuance of New Source Review permit amendments at the remaining sites, we expect to be fully released from the Consent Decree.
We are required by these environmental laws and regulations to obtain registrations, licenses, permits and other approvals in order to operate, to make disclosures to public authorities about our chemical handling and usage activities and to install expensive pollution control and spill containment equipment at our facilities, or to incur other capital expenditures aimed at achieving or maintaining compliance with such laws and regulations. We are in the process of implementing a substantial environmentally-driven capital improvement project over the next three years andThe failure to complete this project or to timely identify and implement otherany such capital projects required to achieve or maintain compliance could expose us to enforcement and penalty.
Under CERCLA and analogous statutes in local and foreign jurisdictions, current and former owners and operators of land impacted by releases of hazardous substances are strictly liable for the investigation and remediation of the contamination resulting from the release. Liability under CERCLA and analogous laws is strict, unlimited, joint, several and retroactive, may be imposed regardless of fault and may relate to historical activities or contamination not caused by the affected property’s current owner or operator. We could be held responsible for all cleanup costs at a site, whether currently or formerly owned or operated, regardless of fault, knowledge, timing or cause of the contamination. Further, under CERCLA and analogous laws, we may be jointly and severally liable for contamination at third party sites where we or our predecessors in interest have sent waste for treatment or disposal, even if we complied with applicable laws. In addition, we may face liability for personal injury, property damage andand/or natural resource damage resulting from environmental conditions attributable to hazardous substance releases at or from facilities we currently own or operate or formerly owned or operated or to which we sent waste. As such, a product spill or emission at one of our facilities or otherwise resulting from our operations could have adverse consequences on the environment and surrounding community and could result in significant liabilities with respect to investigation and remediation.
Our facilities have an extended history of industrial use, and soil and groundwater contamination exists at some of our sites. As of December 31, 2020,2023, we had current investigation, remediation, monitoring and/or monitoringmaintenance obligations at several of our current or former sites, including Rahway, New Jersey; Dominguez, California;California and Martinez, California; and Tacoma, Washington.California. As of December 31, 2020,2023, we had established reserves of approximately $2.7$0.4 million to cover anticipated expenses at these sites, all of which have reached relatively mature stages of either the investigation, remediation or monitoring process. Actual costs to complete these projects may exceed our current estimates. In addition, we have unresolved liability at several sites to which we or our predecessors allegedly arranged for the disposal or treatment of hazardous wastes. For example, at the Boyertown Sanitary Disposal site in Gilbertsville, Pennsylvania, we are participating in a group of parties who disposed of materials at the site to fund investigatory and remedial work.
As of December 31, 2020,2023, our total reserves associated with environmental remediation and enforcement matters were $4.1$0.4 million. In addition to the ongoing remediation and monitoring activities discussed above, there is risk that the long-term industrial use at our facilities may have resulted in, or may in the future result in, contamination that has yet to be discovered, which could require additional, unplanned investigation and remediation efforts by us for which no reserves have been established, potentially without regard to whether we knew of, or caused, the release of such contaminants. Discovery of additional or unknown conditions at our facilities could have an adverse impact on our business by substantially increasing our capital expenditures, including compliance, investigation and remediation costs. Such environmental liabilities attached to our properties, or for properties that we are otherwise responsible for, could have a material adverse effect on our results of operations or financial condition.
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Existing and proposed regulations to address climate change by limiting greenhouse gas emissions may cause us to incur significant additional operating and capital expenses and may impact our business and results of operations.
Certain of our operations result in emissions of greenhouse gases (“GHGs”), such as carbon dioxide. Growing concern about the sources and impacts of global climate change has led to a number of domestic and foreign legislative and administrative measures, both proposed and enacted, to monitor, regulate and limit carbon dioxide and other GHG emissions. In the European Union, our emissions are regulated under the E.U. Emissions Trading System (the “E.U. ETS”), an E.U.-wide trading scheme for industrial GHG emissions. The E.U. ETS is anticipated to become progressively more stringent over time, including by reducing the number of allowances to emit GHGs that E.U. member states will allocate without charge to industrial facilities. In the United States, the EPA has promulgated federal GHG regulations under the Clean Air Act that affect certain sources. For example, the EPA has issued mandatory GHG reporting requirements, under which our Dominguez, California and Baton Rouge, Louisiana facilities currently report. Moreover, California has enacted the Global Warming Solutions Act of 2006 (“Assembly Bill 32”), a law that establishes a comprehensive program to reduce GHG emissions from all sources throughout the state and contains reporting requirements under which our Dominguez and Martinez facilities currently report. Our Dominguez facility also participates in the emissions trading market established under Assembly Bill 32. Although we believe it is likely that GHG emissions will continue to be regulated in at least some regions of the United States and in other countries (in addition to the European Union) in the future, we cannot yet predict the form such regulation will take (such as a cap-and-trade program, technology mandate, emissions tax or other regulatory mechanism) or, consequently, estimate anythe costs that we may be required to incur in respect ofto meet such requirements, which could, for example, require that we install emission control equipment, purchase emissions allowances, administer and manage our GHG emissions program or address other regulatory obligations. Such requirements could also adversely affect our energy supply or the costs and types of raw materials that we use for fuel. Accordingly, regulations controlling or limiting GHG emissions could have a material adverse effect on our business, financial condition or results of operations, including by reducing demand for our products.
Sustainability initiatives may result in operational changes and expenditures, reduced demand for our
products and adversely affect our business.
We recognize that sustainability is a growing global environmental concern. Continuing political and social attention to the issue of sustainability has resulted in both existing and pending international agreements and national, regional or local legislation and regulatory measures to increase sustainability. As a result of heightened public awareness and attention to the issue of sustainability as well as continued regulatory initiatives, demand for certain of our
products may be reduced, which may have an adverse effect on our sales volumes, revenues and margins.
This growing global environmental concern is also manifesting in existing and pending sustainability legislation, regulations, and directives at the federal, state and international levels, including, but not limited to, the E.U. Corporate Sustainability Reporting Directive (“CSRD”), the California Climate Corporate Data Accountability Act (SB 253) and GHG Climate-related Financial Risk Act (SB 261), and proposed United States SEC rules addressing Scope 1, 2, and 3 emissions. In the future, these developments are anticipated to increase the cost associated with complying with existing, pending, and future sustainability-related legislation, regulations and directives and such increased costs and/or our failure to comply with any such legislation, regulations and directives could adversely affect our financial condition, results of operations and cash flows.
Production and distribution of our products could be disrupted for a variety of reasons, and such disruptions could expose us to significant losses or liabilities.
Certain of the hazards and risks associated with our manufacturing processes and the related storage and transportation of raw materials, products and wastes may disrupt production at our manufacturing facilities and the distribution of products to our customers. These potentially disruptive risks include, but are not limited to, the following:
pipeline and storage tank leaks and ruptures;
explosions and fires;
inclement weather and natural disasters;
terrorist attacks;
failure of mechanical, process safety and pollution control equipment;
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chemical spills and other discharges or releases of toxic or hazardous substances or gases;
epidemics and pandemics includingand effects caused by the spread of COVID-19 (coronavirus) and variants thereof;therefrom; and
exposure to toxic chemicals.

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These hazards could expose employees, customers, the community and others to toxic chemicals and other hazards, contaminate the environment, damage property, result in personal injury or death, lead to an interruption or suspension of operations, damage our reputation and adversely affect the productivity and profitability of a particular manufacturing facility or our business as a whole. Such hazards could also result in the need for remediation, governmental enforcement, regulatory shutdowns, the imposition of government fines and penalties and claims brought by governmental entities or third parties. Legal claims and regulatory actions could subject us to both civil and criminal penalties, which could affect our product sales, reputation and profitability.
If disruptions at our manufacturing facilities or in our distribution channels occur, alternative options with sufficient capacity or capabilities may not be available, may cost substantially more or may require significant time to start production or distribution. Any of these scenarios could negatively affect our business and financial performance. If one of our manufacturing facilities or distribution channels is unable to produce or distribute our products for an extended period of time, our sales may be reduced by the shortfall caused by the disruption and we may not be able to meet our customers’ needs, which could cause them to seek other suppliers. Furthermore, to the extent a production disruption occurs at a manufacturing facility that has been operating at or near full capacity, the resulting shortage of our product could be particularly harmful because production at the manufacturing facility may not be able to reach levels achieved prior to the disruption. Such risks are heightened in our Refining ServicesEcoservices segment, which has operations and customers primarily located in the Gulf Coast, which is susceptible to a heightened risk of hurricanes, and Northernin California, which is susceptible to a heightened risk of earthquakes. For example, in August 2017 we shut downDecember 2022, the operations of our Ecoservices’ Houston and Baytown refining servicesHammond facilities in coordination with our refinery partners in anticipation of Hurricane Harvey. The operational interruption at these facilities negatively impacted our sales in 2017were disrupted by approximately $7.7 million.Winter Storm Elliot.
The insurance that we maintain may not fully cover all potential exposures.
We maintain property, business interruption, casualty and other types of insurance, but such insurance may not cover all risks associated with the operation of our business or our manufacturing process and the related use, storage and transportation of raw materials, products and wastes in or from our manufacturing sites or distribution centers. While we have purchased what we deem to be adequate limits of coverage and broadly worded policies, our coverage is subject to exclusions and limitations, including higher self-insured retentions or deductibles and maximum limits and liabilities covered. Notwithstanding diligent efforts to successfully procure specialty coverage for environmental liability and remediation, we may incur losses beyond the limits or outside the terms of coverage of our insurance policies, including liabilities for environmental remediation. In addition, from time to time, various types of insurance for companies in the industries in which we operate have not been available on commercially acceptable terms or, in some cases, at all. We are potentially at additional risk if one or more of our insurance carriers fail. Additionally, severe disruptions in the domestic and global financial markets could adversely impact the ratings and survival of some insurers. Future downgrades in the ratings of enough insurers could adversely impact both the availability of appropriate insurance coverage and its cost. In the future, we may not be able to obtain coverage at current levels, if at all, and our premiums may increase significantly on coverage that we maintain.
We could be subject to damages based on claims brought against us by our customers or lose customers as a result of the failure of our products to meet certain quality specifications.
Our products provide important performance attributes to our customers’ products. If a product fails to perform in a manner consistent with quality specifications, or has a shorter useful life than that which was guaranteed, a customer could seek replacement of the product or damages for costs incurred as a result of the product failing to perform as guaranteed. A successful claim or series of claims against us could cause reputational harm and have a material adverse effect on our financial condition and results of operations and could result in a loss of one or more customers.

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We may engage in strategic acquisitions or dispositions of certain assets or businesses that could affect our business, results of operations, financial condition and liquidity.
We may selectively pursue complementary acquisitions, such as the Business Combination,Chem32 acquisition, and joint ventures, such as the Zeolyst Joint Venture, each of which inherently involves a number of risks and presents financial, managerial and operational challenges, including:
potential disruption of our ongoing business and distraction of management;
difficulty with integration of personnel and financial and other systems;
hiring additional management and other critical personnel; and
increasing the scope, geographic diversity and complexity of our operations.
In addition, we may encounter unforeseen obstacles or costs in the integration of acquired businesses. For example, the presence of one or more material liabilities of an acquired company that are unknown to us at the time of acquisition may have a material adverse effect on our business. Our acquisition and joint venture strategy may not be received positively by customers, and we may not realize any anticipated benefits from acquisitions or joint ventures.
We may also opportunistically pursue dispositions of certain assets and businesses, which may involve material amounts of assets or lines of business, which could adversely affect our results of operations, financial condition and liquidity. If any such dispositions were to occur, under the terms of the agreements governing our outstanding indebtedness, we may be required to apply the proceeds of the sale to repay such indebtedness.
In addition, our strategic acquisitions and dispositions may also affect the diversity of our assets and our capital structure. As a result, our acquisitions and dispositions could affect our business, results of operations, financial condition, and liquidity. Further, all the risks associated with our acquisitions and dispositions may not be immediately known to us, and the anticipated benefits of such acquisition or disposition may not be fully realized.
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, an affiliate of The Jordan Company, L.P., for a purchase price of $650.0 million, which was subject to certain adjustments for indebtedness, working capital, and cash at the closing of the transaction.
On MarchEffective on August 1, 2021, we announced that we entered into a definitive agreement to sellcompleted the sale of our Performance Chemicals business to a partnership established by Cerberus Capital Management, L.P. and Koch Mineral & Trading LLC for a purchase price of $1.1 billion, which iswas subject to certain adjustments including for indebtedness, cash, working capital and transaction expenses. The transaction is expected to be completed in 2021, subject to regulatory approvals and customaryexpenses at the closing conditions.of the transaction.
Our joint ventures may not operate according to their business plans if our partners fail to fulfill their obligations or differences in views among our partners results in delayed decisions or failures to agree on major issues, which may adversely affect our results of operations and force us to dedicate additional resources to these joint ventures.
We currently participate in a number of joint venturesventure relating to the Zeolyst International business and may enter into additional joint ventures in the future. The nature of a joint venture requires us to share control with unaffiliated third parties and we sometimes have joint and several liability with our joint venture partners. If our joint venture partners do not fulfill their obligations, or if differences in views among the joint venture participants resultsresult in delayed decisions or failures to agree on major issues, the affected joint venture may not be able to operate according to its business plan. For example, the Zeolyst Joint Venture is structured as a general partnership in which we are equal partners with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell”. Accordingly, we do not control the Zeolyst Joint Venture and cannot unilaterally undertake strategies, plans, goals and operations or determine when cash distributions will be made to us. Furthermore, we are liable on a joint and several basis with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc. or “Shell” for all of the partnership’s liabilities if it does not have sufficient assets to satisfy such liabilities. Such factors may adversely affect our results of operation and force us to dedicate additional and unexpected resources to our joint ventures.

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Our failure to protect our intellectual property rights could adversely affect our future performance and growth.
Protection of our proprietary processes, methods, compounds and other technologies is important to our business. We depend upon our ability to develop and protect our intellectual property rights to distinguish our products from those of our competitors. Failure to protect our existing intellectual property rights may allow our competitors to copy our products and may result in the loss of valuable proprietary technologies or other intellectual property. Failure to protect our innovations and trademarks by securing intellectual property rights could also result in our having to pay other
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companies for infringing on their intellectual property rights. We rely on a combination of patent, trade secret, trademark and copyright law as well as regulatory and judicial enforcement to protect such technologies and trademarks. In addition, the laws of many foreign countries do not protect our intellectual property rights to the same extent as the laws of the United States. As of December 31, 2020,2023, we owned 3921 patented inventions in the United States, with approximately 286175 patents issued in countries around the world and approximately 6961 patent applications pending worldwide covering more than 11 additionalsuch inventions. Some of these patents are licensed to others. In addition, we have acquired certain rights under patents and inventions of others through licenses. Should any of these licenses granted to us by third parties terminate prior to the expiration of the licensed intellectual property, we would need to cease using the licensed intellectual property, and either develop or license alternative technologies. In such a case, there can be no assurance that alternative technologies exist or that we would be able to obtain such a license on favorable terms.
Competitors and third parties may infringe on our patents or violate our intellectual property rights. Defending and enforcing our intellectual property rights can involve litigation and can be expensive and time consuming. Such proceedings could put our patents at risk of being invalidated and confidential information may be disclosed through the discovery process; these costs and diversion of resources could harm our business.
We cannot provide any assurances that any of our pending applications will mature into issued patents, or that any patents that have issued or may issue in the future do or will include claims with a scope sufficient to provide any competitive advantage. Patents involve complex legal and factual questions and, therefore, the issuance, scope, validity and enforceability of any patent claims we have or may obtain cannot be predicted with certainty. Patents may be challenged, deemed unenforceable, invalidated or circumvented. Patents may be challenged in the courts, as well as in various administrative proceedings before the United States Patent and Trademark Office or foreign patent offices. We are currently and may in the future be a party to various adversarial patent office proceedings involving our patents or the patents of third parties. Such challenges can result in some or all of the claims of the challenged patent being invalidated, deemed unenforceable, or interpreted narrowly which, in the case of challenges to our own patents, may be adverse to our interests. Accordingly, the issuance of patents is not conclusive of the validity, scope, or enforceability of such patents. Moreover, even if valid and enforceable, competitors may be able to design around our patents or use pre-existing technologies to compete with us.
We also rely upon unpatented proprietary know-how, continuing technological innovation and other trade secrets to develop and maintain our competitive position, which may not provide us with complete protection against competitors. Misappropriation or unauthorized disclosure of our proprietary know-how could harm our competitive position or have an adverse effect on our business. While it is our policy to enter into confidentiality agreements with our employees and third parties to protect our intellectual property rights and we strive to maintain the physical security of our properties and the security of our IT systems, there can be no assurances that:
our confidentiality agreements will not be breached;
our security measures will not be breached;
such agreements will provide meaningful protection for our trade secrets or proprietary know-how; or
adequate remedies will be available in the event of an unauthorized use or disclosure of such trade secrets and know-how.
In addition, there can be no assurances that others will not obtain knowledge of these trade secrets through independent development or other access by legal means.
Measures taken by us to protect these assets and rights may not provide meaningful protection for our trade secrets or proprietary manufacturing expertise and adequate remedies may not be available in the event of an unauthorized use or disclosure of our trade secrets or manufacturing expertise. In addition, as noted above, our patents and other intellectual property rights may be challenged, invalidated, circumvented or rendered unenforceable.
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Furthermore, we cannot provide assurance that any pending patent or trademark application filed by us will result in an issued patent or registered trademark or, if patents are issued to us, that those patents will provide meaningful protection against competitors or against competitive technologies. The failure of our patents or other measures to protect our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds or trademarks and provide us with freedom to exclude competition could have an adverse effect on our business, financial condition, results of operations and cash flows. See “Business-Intellectual Property.”
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Our products may infringe the intellectual property rights of others, which may cause us to incur unexpected costs or prevent us from selling our products.
Our industry is characterized by vigilant pursuit of intellectual property rights, particularly with respect to our silica catalystsadvanced silicas and zeolite catalysts product groups. Like us, our competitors rely on intellectual property rights to maintain profitability and competitiveness. As the number of products and competitors has increased, the likelihood of intellectual property disputes has risen. Although it is our policy and intention not to infringe valid patents of which we are aware,others, our processes, apparatuses, technology, proprietary manufacturing expertise, methods, compounds and products may infringe on issued patents or infringe or misappropriate other intellectual property rights of others. Accordingly, we continually monitor third-party intellectual property to confirm our freedom to operate. Nevertheless, we may be subject to legal proceedings and claims in the ordinary course of our business, including claims of alleged infringement of the patents or trademarks or infringement or misappropriation of other intellectual property rights of third parties by us or our licensees in connection with their use of our products. Intellectual property litigation is expensive and time-consuming, regardless of the merits of any claim, and could divert the attention of our management and technical personnel away from operating our business. If we were to discover that our processes, apparatuses, technology, products or trademarks infringe the valid intellectual property rights of others, we might need to obtain licenses from these parties or substantially reengineer or rebrand our products in order to avoid infringement. We may not be able to obtain the necessary licenses on acceptable terms, or at all, or be able to reengineer our products successfully or at an acceptable cost. Moreover, if we are sued for infringement and lose the suit, we could be required to pay substantial damages and/or be enjoined from using or selling the infringing products or technology or using the infringing trademark. Additionally or alternatively, we may seek to challenge third-party patents in administrative proceedings before the United States patent office or one or more foreign patent offices. Any of the foregoing could cause us to incur significant costs and prevent us from selling our products, which could have an adverse effect on our business, financial condition, results of operations and cash flows. Even if we ultimately prevail, the existence of lawsuits could prompt our customers to switch to alternative products. In addition, we have agreed, and will continue to agree, to indemnify certain customers for certain intellectual property infringement claims related to intellectual property relating to our products and the manufacture thereof. Should there be infringement claims against our licensees, we could be required to indemnify them for losses resulting from such claims or to refund amounts they have paid to us.

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Disruption, failure or cyber securitycybersecurity breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations.
We use computers and telecommunication systems to analyze and store financial and operating data and to communicate within our company, with outside business partners, and across international borders. These systems can be subject to technical system flaws; power loss; cyber attacks, including viruses, malware, phishing, ransomware, terrorism, and surveillance; unauthorized access; malicious software; intentional or inadvertent data privacy breaches by employees or others with authorized access; hacktivism; ransomware; physical or electronic break-ins; fires or natural disasters; supply chain attacks; and other cyber securitycybersecurity issues. We have no assurance that our systems are appropriately redundant to withstand these events. Accordingly, such events could cause adverse effects and material disruptions to our operations or systems or those of our business partners; compromise the security, integrity, availability, and confidentiality of customer information, employee information, strategic projects, product formulas and other trade secrets, other business or personal sensitive data, including third party confidential information in our possession. Release of third party confidential information could materially harm our reputation, affect our relationships with such parties and expose us to liability. Although we have introduced many security measures, including firewalls and information technology security policies and training, these measures may not offer the appropriate level of security. A security breach or other compromise of our information security safeguards could expose our confidential information, including third party confidential information in our possession (such as customer information) to theft and misuse, which could in turn adversely affect our relationships with such third parties and have an adverse effect on our business, financial condition, results of operations and cash flows. In addition, a disruption, blockage, failure or a cyber breach of software or operating systems we use, or of the networks and infrastructure on which they rely, could damage critical production, distribution and/or storage assets, delay or prevent delivery to markets, and make it difficult or impossible to accurately account for production and settle transactions.
These impacts may adversely affect our relationships with such employees, customers and other third parties and may have an adverse effect on our business reputation, competitiveness, financial condition, results of operations and cash flows, including damage to our operations, employees, or other third parties, resulting in remediation costs, litigation or regulatory actions. Although we have introduced many security measures, including firewalls and information
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technology security policies and training, these measures may not offer the appropriate level of security. We routinely experience attempts by external parties to penetrate and attack our networks and systems. Although such attempts to date have not resulted in any material breaches, disruptions, financial loss, or loss of business-critical information, our systems and procedures for protecting against such attacks and mitigating such risks may prove to be insufficient in the future. As technologies evolve and these cyber security attacks become more sophisticated, we may incur significant costs to upgrade or enhance our security measures to protect against such attacks, and we may face difficulties in fully anticipating or implementing adequate preventive measures or mitigating potential harm.

Risks Related to our Financial Condition
The non-GAAP financial information included in this Form 10-K is presented for informational purposes only and may not be an indication of our financial condition or results of operations in the future.
The non-GAAP financial information included in this Form 10-K includes information that we use to evaluate our past performance, but you should not consider such informationbe considered in isolation or as an alternative to measures of our performance determined under GAAP.

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Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.
Our operations are conducted through our subsidiaries and joint ventures. As a result, our ability to make future dividend payments, if any, is dependent on the earnings of our subsidiaries and joint ventures and the payment of those earnings to us in the form of dividends, loans or advances and through repayment of loans or advances from us. Payments to us by our subsidiaries and joint ventures will be contingent upon our subsidiaries’ or joint ventures’ earnings and other business considerations and may be subject to statutory or contractual restrictions. We have not and do not currently intend to paypaid regular dividends on our common stock in the foreseeable future;stock; however, we paid a special cash dividend in December 2020 and have announced an intent to pay a special cash dividend of $2.50 to $3.25 per share, subject to board approval and declaration, to bein August 2021 that was financed with the cash proceeds from our anticipated sale of our Performance Materials and Performance Chemicals business.businesses, respectively. To the extent that we determine in the future to pay dividends on our common stock, the agreements governing our outstanding indebtedness significantly restrict the ability of our subsidiaries to pay dividends or otherwise transfer assets to us.
We may need to recognize impairment charges related to goodwill, identified intangible assets and fixed assets.
We are required to test goodwill and any other intangible asset with an indefinite life for possible impairment on the same date each year and on an interim basis if there are indicators of a possible impairment. We are also required to evaluate indefinite-lived intangible assets and fixed assets for impairment if there are indicators of a possible impairment.
There is significant judgment required in the analysis of a potential impairment of goodwill, identified intangible assets and fixed assets. If, as a result of a general economic slowdown or deterioration in one or more of the industries in which we operate or in our financial performance or future outlook, or if the estimated fair value of our long-lived assets decreases, we may determine that one or more of our long-lived assets is impaired. An impairment charge would be determined based on the estimated fair value of the assets and any such impairment charge could have a material adverse effect on our results of operations and financial position.
We performed our annual impairment test on its goodwill on October 1, 2020,2023, and determined that an impairment existed with respect to our Performance Chemicals segment. As a result, we recorded a non cashthere was no goodwill impairment charge of $260.0 million.impairment.
We may be subject to future changes in tax legislation or exposure to additional tax liabilities that may adversely affect our results of operations.
We are subject to taxes in the U.S. as well as foreign jurisdictions where our subsidiaries are organized. Due to economic and political conditions, tax rates, tax laws and other non-tax legislation, such as economic substance regulations, our business may experience significant impacts as a result of prospective changes. For example, the Inflation Reduction Act (“IRA”) enacted in the U.S. on August 16, 2022 imposes several new taxes that became effective in 2023, including a 1% excise tax on stock repurchases. Our future effective tax rates may be affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities, changes in available tax credits or tax deductions, as well as changes in tax and other non-tax laws or their interpretation. Additionally, our organization is engaged in a number of cross-border intercompany transactions, subject to local transfer pricing regimes currently in place. We believe the economics of these transactions have been clearly
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reported, and the appropriate local transfer pricing documentation is contemporaneously available, although tax authorities may propose and potentially sustain adjustments that could result in changes to our mix of earnings in countries with differing statutory tax rates. The Organization of Economic Cooperation and Development (“OECD”), which represents a coalition of member countries, is supporting changes to numerous long-standing tax principles through its base erosion and profit shifting (“BEPS”) project. This project focuses on a number of issues, including the shifting of profits cross-border amongst affiliated entities. Given the scope of the Company's international operations and the fluid and uncertain nature of how the BEPS project might ultimately lead to future legislation, it is difficult to assess how any changes in tax laws would impact the Company's future income tax expense. For example, the Model Rules under BEPS’s Pillar Two include a common approach for a global minimum tax. The Company has assessed the minimum tax and does not expect it to be within the scope of the Model Rules beginning January 1, 2024. The Company will continue to monitor the BEPS project and the applicability of new tax legislation to the Company.
Our tax returns and other tax matters are subject to examination by local tax authorities and governmental bodies. We regularly assess the likelihood of an adverse outcome resulting from these examinations, in order to determine any resulting impact to our provision for taxes. There can be no assurance as to the outcome of these examinations. If our effective tax rates were to increase as a result of a tax examination, or if the ultimate determination of the taxes owed by us is for an amount in excess of amounts previously accrued, our operating results, cash flows and financial condition could be adversely affected.
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On December 22, 2017, the Tax Cuts and Jobs Act (“TCJA”) was enacted into law. The TCJA mandated significant changes to U.S. corporate taxation. Notable legislative changes include a reduction of the corporate tax rate from 35% to 21%, new additional limitations on the tax deductibility of interest, extensive changes to the regime governing the taxation of foreign earnings, immediate deductions for certain investments instead of deductions for depreciation expense over time, as well as modification or repeal of certain business deductions and credits. While our current tax accounting is complete based on existing legislative guidance relating to the TCJA, further interpretive guidance of the TCJA's provisions may result in further adjustments that could have an impact on our future results of operations, cash flows or financial positions.
We have unfunded and underfunded pension plan liabilities. We will require current and future operating cash flow to fund these shortfalls. We have no assurance that we will generate sufficient cash flow to satisfy these obligations.
We maintain defined benefit pension plans covering employees who meet age and service requirements. While someall of our plans have been frozen, our net pension liability and cost is materially affected by the discount rate used to measure pension obligations, the longevity and actuarial profile of our workforce, the level of plan assets available to fund those obligations and the actual and expected long-term rate of return on plan assets. Significant changes in investment performance or a change in the portfolio mix of invested assets can result in corresponding increases and decreases in the valuation of plan assets, particularly equity securities, or in a change in the expected rate of return on plan assets. Assets available to fund the pension and other postemployment benefit obligations of our plans as of December 31, 20202023 were approximately $362.7$61.6 million, or approximately $56.4$4.9 million less than the measured pension benefit obligation on a GAAP basis. In addition, any changes in the discount rate could result in a significant increase or decrease in the valuation of pension obligations, affecting the reported funded status of our pension plans as well as the net periodic pension cost in the following years. Similarly, changes in the expected return on plan assets can result in significant changes in the net periodic pension cost in the following years.
We also contribute to one multi-employer pension plan on behalf of certain of our employees in the United States pursuant to union agreements that generally provide defined benefits to employees covered by collective bargaining agreements. A total of approximately 3 employees currently participate in such multi-employer pension plan. Funding requirements for benefit obligations of multi-employer pension plans are subject to certain regulatory requirements and we may be required to make cash contributions to one of these plans to satisfy certain underfunded benefit obligations. Absent an applicable exemption, a contributor to a U.S. multi-employer plan is liable upon its withdrawal from, or the termination of, a plan for its proportionate share of the plan’s underfunding, if any.
We also provide certain health care and life insurance benefits through an unfunded plan to certaina group of our employees and their dependentsretirees in the United States uponwho retired prior to the retirement of such employee from us pursuant to union agreements.date on which these benefit programs were frozen. Current employees are not eligible for any post-retirement health care or life insurance benefits. Costs of these other post-employment benefit plans are dependent upon numerous factors, assumptions and estimates.
Risks Related to our Indebtedness
Our substantial level of indebtedness could adversely affect our financial condition.
We have substantial indebtedness, which as of December 31, 2020,2023, totaled approximately $1,426.4$877.5 million. Our substantial indebtedness, combined with our other financial obligations and contractual commitments, could have important consequences, including:
requiring us to dedicate a substantial portion of our cash flows from operations to payments on our indebtedness, thereby reducing funds available for working capital, capital expenditures, acquisitions, selling and marketing efforts, product development and other purposes;
increasing our vulnerability to adverse economic and industry conditions, which could place us at a competitive disadvantage compared to our competitors that have relatively less indebtedness;
limiting our flexibility in planning for, or reacting to, changes in our business and the industries in which we operate;
increasing our exposure to rising interest rates because certain of our borrowings are at variable interest rates;
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restricting us from making investments, strategic acquisitions or causing us to make non-strategic divestitures; and
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limiting our ability to borrow additional funds, or to dispose of assets to raise funds, if needed, for working capital, capital expenditures, acquisitions, product development and other corporate purposes.
Although the terms of the agreements governing our outstanding indebtedness contain restrictions on the incurrence of additional indebtedness, such restrictions are subject to a number of important exceptions and indebtedness incurred in compliance with such restrictions could be substantial. If we and our restricted subsidiaries incur significant additional indebtedness, the related risks that we face could increase.
The terms of our indebtedness restrict our current and future operations, particularly our ability to respond to change or to take certain actions.
The indentures governing our outstanding indebtedness contain a number of restrictive covenants that impose significant operating and financial restrictions on us and may limit our ability to engage in acts that may be in our long-term best interest, including restrictions on our ability to incur additional indebtedness, make investments, acquisitions, loans and advances, sell, transfer or otherwise dispose of our assets or incur liens. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Debt.” In addition, the restrictive covenants in the agreements governing our senior secured credit facilities require us to maintain specified financial ratios and satisfy other financial condition tests. Our ability to meet these financial ratios and tests can be affected by events beyond our control.
A breach of such covenants could result in an event of default unless we obtain a waiver to avoid such default. If we are unable to obtain a waiver, such a default may allow our creditors to accelerate the related debt and may result in the acceleration of, or default under, any other debt to which a cross-acceleration or cross-default provision applies. In the event our lenders or noteholders accelerate the repayment of our borrowings, we and our subsidiaries may not have sufficient assets to repay that indebtedness.
We may be adversely affected by changes in LIBOR reporting practices or the method in which LIBOR is determined.
LIBOR, the London interbank offered rate, is the basic rate of interest used in lending between banks on the London interbank market and is widely used as a reference for setting the interest rate on loans globally. Our senior secured term loan facilities and asset-based revolving credit facility use LIBOR as a reference rate such that the interest due to our creditors under those facilities is calculated using LIBOR. As of December 31, 2020, we had approximately $1,131.4 million of debt outstanding that was indexed to LIBOR. In addition, we have entered into a LIBOR-based interest rate caps to manage our exposure to interest rate movements resulting from changes in the benchmark interest rate of LIBOR. The interest rate cap agreements extend from July 2020 through July 2022 on $500.0 million of notional variable-rate debt and from August 2020 through August 2023 on $400.0 million of notional variable-rate debt.
On July 27, 2017, the United Kingdom’s Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR by the end of 2021. It is unclear if LIBOR will cease to exist at that time or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, is considering replacing U.S. dollar LIBOR with a new index calculated by short-term repurchase agreements, backed by Treasury securities. The future of LIBOR at this time is uncertain and any changes in the methods by which LIBOR is determined or regulatory activity related to LIBOR’s phaseout could cause LIBOR to perform differently than in the past or cease to exist. If LIBOR ceases to exist, we may need to renegotiate our credit agreements and/or interest rate cap and cross-currency swap agreements, which may result in interest rates and/or payments that do not correlate over time with the interest rates and/or payments that would have been made on our obligations if LIBOR was available in its current form.

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Risks Related to our Common Stock
CCMP and INEOS continue to have significant influence over us, which could limit your ability to influence the outcome of key transactions, including a change of control.
As of December 31, 2020, investment funds affiliated with CCMP beneficially owned approximately 45% of our outstanding common stock and INEOS beneficially owned approximately 24% of our outstanding common stock. For as long as affiliates of CCMP and INEOS continue to beneficially own a substantial percentage of the voting power of our outstanding common stock, they will continue to have significant influence over us. For example, they will be able to strongly influence or effectively control the election of all of the members of our board of directors and our business and affairs, including any determinations with respect to mergers or other business combinations, the acquisition or disposition of assets, the incurrence of additional indebtedness, the issuance of any additional shares of common stock or other equity securities, the repurchase or redemption of shares of our common stock and the payment of dividends.
Additionally, CCMP and INEOS are in the business of making investments in companies and may acquire and hold interests in businesses that compete directly or indirectly with us. CCMP and INEOS may also pursue acquisition opportunities that may be complementary to our business, and, as a result, those acquisition opportunities may not be available to us.
Our stock price could be extremely volatile and, as a result, you may not be able to resell your shares at or above the price you paid for them.
Since launching our IPO in September 2017, the price of our common stock, as reported on the New York Stock Exchange, has ranged from a low of $8.50$8.20 on March 16, 2020November 15, 2022 to a high of $18.90 on March 9, 2021. In addition, the stock market in general has been highly volatile. As a result, the market price of our common stock is likely to be similarly volatile, and investors in our common stock may experience a decrease, which could be substantial, in the value of their stock, including decreases unrelated to our operating performance or prospects, and could lose part or all of their investment. The price of our common stock could be subject to wide fluctuations in response to a number of factors, including those described elsewhere herein and others such as:
variations in our operating performance and the performance of our competitors;
actual or anticipated fluctuations in our quarterly or annual operating results;
publication of research reports by securities analysts about us, our competitors or our industry;
our failure or the failure of our competitors to meet analysts’ projections or guidance that we or our competitors may give to the market;
additions or departures of key personnel;
strategic decisions by us or our competitors, such as acquisitions, divestitures, spin-offs, joint ventures, strategic investments or changes in business strategy;
the passage of legislation or other regulatory developments affecting us or our industry;
changes in legislation, regulation and government policy as a result of the U.S. presidential and congressional elections;
speculation in the press or investment community;
changes in accounting principles;
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sales of substantial amounts of our stock by current stockholders (including stock by insiders or 5% stockholders);
terrorist acts, acts of war or periods of widespread civil unrest;
natural disasters and other calamities; and
changes in general market and economic conditions.
In addition, broad market and industry factors may negatively affect the market price of our common stock, regardless of our actual operating performance, and factors beyond our control may cause our stock price to decline rapidly and unexpectedly. We are exposed to the impact of any global or domestic economic disruption that may occur, including the economic effects of COVID-19.
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occur..
In the past, securities class action litigation has often been initiated against companies following periods of volatility in their stock price. This type of litigation could result in substantial costs and divert our management’s attention and resources, and could also require us to make substantial payments to satisfy judgments or to settle litigation.
Your percentage ownership in us may be diluted by future issuances of capital stock, which could reduce your influence over matters on which stockholders vote.
Our board of directors has the authority, without action or vote of our stockholders, to issue all or any part of our authorized but unissued shares of common stock, including shares issuable upon exercise of options, or shares of our authorized but unissued preferred stock. Issuances of common stock or voting preferred stock would reduce your influence over matters on which our stockholders vote and, in the case of issuances of preferred stock, would likely result in your interest in us being subject to the prior rights of holders of that preferred stock.
There may be sales of a substantial amount of our common stock by our current stockholders, and these sales could cause the price of our common stock to fall.
As of December 31, 2020, there were 136,318,557 shares of our common stock outstanding. Approximately 45% and 24% of our outstanding common stock is held by affiliates of CCMP and by INEOS, respectively.
Sales of substantial amounts of our common stock in the public market, or the perception that such sales will occur, could adversely affect the market price of our common stock and make it difficult for us to raise funds through securities offerings in the future.
Investment funds affiliated with CCMP may require us to register shares of our common stock held by them for resale under the federal securities laws, subject to reduction upon the request of the underwriter of the offering, if any. Registration of those shares would allow the investment funds affiliated with CCMP to immediately resell their shares in the public market. Any such sales or anticipation thereof could cause the market price of our common stock to decline.
In addition, we have registered shares of our common stock that are reserved for issuance under our 2016 Stock Incentive Plan and 2017 Omnibus Incentive Plan, as amended and restated.
Provisions in our charter documents and Delaware law may deter takeover efforts that may be beneficial to stockholder value.
In addition to investment funds affiliated with CCMP’s and INEOS’s beneficial ownership of a substantial percentage of our common stock, provisionsProvisions in our certificate of incorporation and bylaws and Delaware law could make it harder for a third party to acquire us, even if doing so might be beneficial to our stockholders. These provisions include a classified board of directors and the ability of our board of directors to issue preferred stock without stockholder approval that could be used to dilute a potential hostile acquiror. Our certificate of incorporation imposes some restrictions on mergers and other business combinations between us and any holder of 15% or more of our outstanding common stock other than INEOS Limited and investment funds affiliated with CCMP.CCMP, Capital Advisors, L.P. (“CCMP”), one of our former stockholders. As a result, you may lose your ability to sell your stock for a price in excess of the prevailing market price due to these protective measures, and efforts by stockholders to change the direction or management of the company may be unsuccessful.
Our certificate of incorporation designates courts in the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.
Our certificate of incorporation provides that, subject to limited exceptions, the Court of Chancery of the State of Delaware is the sole and exclusive forum for:
any derivative action or proceeding brought on our behalf;
any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders;
any action asserting a claim against us arising pursuant to any provision of the General Corporation Law of the State of Delaware, our certificate of incorporation or our bylaws;
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any action to interpret, apply, enforce or determine the validity of our certificate of incorporation or bylaws; or
any other action asserting a claim against us that is governed by the internal affairs doctrine (each, a “Covered Proceeding”).
In addition, our certificate of incorporation provides that if any action the subject matter of which is a Covered Proceeding is filed in a court other than the specified Delaware courts without the approval of our board of directors (each, a “Foreign Action”), the claiming party will be deemed to have consented to (i) the personal jurisdiction of the
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specified Delaware courts in connection with any action brought in any such courts to enforce the exclusive forum provision described above and (ii) having service of process made upon such claiming party in any such enforcement action by service upon such claiming party’s counsel in the Foreign Action as agent for such claiming party.
Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and to have consented to these provisions. These provisions may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and employees. Alternatively, if a court were to find these provisions of our certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business and financial condition.
Our certificate of incorporation contains a provision renouncing our interest and expectancy in certain corporate opportunities, which could adversely impact our business.
Each of CCMP and INEOS, and the members of our board of directors who are affiliated with CCMP and INEOS, by the terms of our certificate of incorporation, are not required to offer us any corporate opportunity of which they become aware and can take any such corporate opportunity for themselves or offer it to other companies in which they have an investment. We, by the terms of our certificate of incorporation, expressly renounce any interest or expectancy in any such corporate opportunity to the extent permitted under applicable law, even if the opportunity is one that we or our subsidiaries might reasonably have pursued or had the ability or desire to pursue if granted the opportunity to do so. Our certificate of incorporation may not be amended to eliminate our renunciation of any such corporate opportunity arising prior to the date of any such amendment.
CCMP and INEOS are in the business of making investments in companies and may from time to time acquire and hold interests in businesses that compete directly or indirectly with us. These potential conflicts of interest could have a material adverse effect on our business, financial condition, results of operations or prospects if CCMP or INEOS allocate attractive corporate opportunities to themselves or their affiliates instead of to us.
We may not pay additional dividends on our common stock and, consequentially, you may not receive any return on investment unless you sell your common stock for a price greater than that which you paid for it.
Although we paid a special cash dividenddividends in December 2020 and have announced an intent to pay a special cash dividend of $2.50 to $3.25 per share, subject to board approval and declaration, to be financed with the cash proceeds from our anticipated sale of our Performance Chemicals business,August 2021, our board of directors may decide to retain future earnings, if any, for future operations, expansion and debt repayment and may not pay any special or regular dividends for the foreseeable future. Any decision to declare and pay special or regular dividends in the future will be made at the discretion of our board of directors and will depend on, among other things, our results of operations, financial condition, cash requirements, contractual restrictions and other factors that our board of directors may deem relevant. In addition, our ability to pay dividends may be limited by covenants of any existing and future outstanding indebtedness we or our subsidiaries incur, including our credit facilities and outstanding notes. See “Because our operations are conducted through our subsidiaries and joint ventures, we are dependent on the receipt of distributions and dividends or other payments from our subsidiaries and joint ventures for cash to fund our operations and expenses, including to make future dividend payments, if any.” As a result, you may not receive any return on an investment in our common stock unless you sell your common stock for a price greater than that which you paid for it.


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General Risk Factors
Significant trade developments stemming from the U.S. administration, U.S. courts’ or the United Kingdom’s exit from the European Union could have an adverse effect on us.
The United States has in recent years renegotiated a number of trade agreements, such as the United States-Mexico-Canada Agreement (“USMCA”), imposed tariffs on goods imported from China and certain other countries, and increasingly levied sanctions and export controls on China and other countries. All of these actions have resulted in retaliatory action, including retaliatory tariffs and other restrictions by China and other countries. These changes, as well as any other changes in social, political, regulatory and economic conditions, or further changes to foreign or domestic laws and policies governing foreign trade (including export, import and sanctions), manufacturing and development and foreign direct investment in the territories and countries where we or our customers operate could adversely affect our operating results and our business.
Additionally, in June 2016, the United Kingdom held a referendum and voted in favor of leaving the European Union and, on January 31, 2020, the United Kingdom exited the European Union and the implementation period or transition period ended on December 31, 2020. This referendum and exit has created political and economic uncertainty, particularly in the United Kingdom and the European Union, and this uncertainty may last for years. Our business could be affected during this period of uncertainty, and perhaps longer, by the impact of the United Kingdom’s referendum and exit. In addition, our business could be negatively affected by new trade agreements between the United Kingdom and other countries, including the United States, and by the possible imposition of trade or other regulatory barriers in the United Kingdom. These possible negative impacts, and others resulting from the United Kingdom’s withdrawal from the European Union, may adversely affect our customers’ businesses and our operating results.
If we lose certain key personnel or are unable to hire additional qualified personnel, we may not be able to execute our business strategy and our business could be adversely affected.
Our success depends, in part, upon the continued services of our highly skilled personnel involved in management, research, production and distribution and, in particular, upon the efforts and abilities of our key officers. Although we believe that we are adequately staffed in key positions, we may not be able to retain such personnel on acceptable terms or at all, and such personnel may seek to compete with us in the future. If we lose the service of any of our key personnel, we may not be able to hire replacements with the same level of industry experience and knowledge necessary
37


to execute our business strategy, which in turn could have a material adverse effect on our business, financial condition, results of operations or cash flows.
We depend on good relations with our workforce, and any significant disruptions could adversely affect our operations.
As of December 31, 2020,2023, we had 2,274911 employees globally,worldwide, approximately 49%44% of which were represented by a union, works council or other employee representative body. As of December 31, 2020, approximately 40%2023, 137 of our U.S. unionized employees were covered under collective bargaining agreements that will expire on or before December 31, 2020.30, 2024. Failure to reach agreement with any of our unionized work groups regarding the terms of their collective bargaining agreements or annual pay increases may result in a labor strike, work stoppage or slowdown. In addition, a large number of our employees are employed in countries in which employment laws provide greater bargaining or other rights to employees than the laws of the United States. Such employment rights require us to work collaboratively with the legal representatives of the employees to effect any changes to labor arrangements. For example, many of our employees in Europe are represented by works councils that must approve any changes in conditions of employment, including salaries, benefits and staff changes, and may impede efforts to restructure our workforce. Although we believe that we have a good working relationship with our employees, a strike, work stoppage or slowdown by our employees or a dispute with our employees could result in a significant disruption to our operations or higher ongoing labor costs. In addition, our ability to make adjustments to control compensation and benefit costs, or otherwise adapt to changing business needs, may be limited by the terms and duration of our collective bargaining agreements.

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We are subject to certain risks related to litigation filed by or against us, as well as administrative and regulatory proceedings, and adverse results may harm our business.
We cannot predict with certainty the cost of defense, the cost of prosecution or the ultimate outcome of litigation and other administrative and regulatory proceedings filed by or against us, including remedies or damage awards, and how adverse results in any litigation or other administrative and regulatory proceedings may materially harm our business. Litigation and other administrative and regulatory proceedings may include, but are not limited to, actions relating to intellectual property, commercial arrangements, environmental, health and safety matters, joint venture agreements, labor and employment matters, domestic and foreign antitrust matters or other harms resulting from the actions of individuals or entities outside of our control. In the case of intellectual property litigation and proceedings, adverse outcomes could include the cancellation, invalidation or other loss of material intellectual property rights used in our business and injunctions prohibiting our use of our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods and compounds that are subject to third-party patents or other third-party intellectual property rights. Litigation based on environmental matters or exposure to hazardous substances in the workplace or from our products could result in significant liability for us. For example, we are currently subject to various asbestos premises liability claims that relate to employee ora contractor exposure to asbestos contained in certain building materials at our sites. Furthermore, our international operations expose us to potential administrative and regulatory proceedings in foreign jurisdictions. Antitrust authorities in Brazil have publicly announced that they are investigating alleged cartel activities by Brazilian silicate manufacturers, including our Brazilian subsidiary (“PQ Brazil”). The authorities allege that the activities occurred over an approximately 10-year period beginning in the late 1990s, which is prior to the time we owned PQ Brazil. PQ Brazil is fully cooperating with the authorities. Adverse outcomes in any of the foregoing could have a material adverse effect on our business.
If we fail to maintain effective internal control over financial reporting and effective disclosure controls and procedures, we may not be able to accurately report our financial results in a timely manner or prevent fraud, which may adversely affect investor confidence in our company.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, as amended, our management is required to report on, and our independent registered public accounting firm is required to attest to, the effectiveness of our internal control over financial reporting. This assessment includes disclosure of any material weakness identified by our management in our internal control over financial reporting. In addition, we are required to comply with the SEC’s rules implementing Section 302 of the Sarbanes-Oxley Act, which requires management to certify financial and other information in our quarterly and annual reports, and we are required to disclose significant changes made in our internal controls and procedures on a quarterly basis.
If we identify a material weakness in our internal control over financial reporting, we may not be able to remediate the material weakness identified in a timely manner or maintain all of the controls necessary to remain in compliance with our reporting obligations. If we are unable to assert that our internal control over financial reporting is effective, or if our independent registered public accounting firm is unable to express an unqualified opinion as to the effectiveness of our internal control over financial reporting in future periods, investors may lose confidence in the accuracy and completeness of our financial reports, the market price of our common stock could be negatively affected, and we could
38


become subject to investigations by the New York Stock Exchange, on which our securities are listed, the SEC or other regulatory authorities, which could require additional financial and management resources.
Regulations related to conflict minerals could adversely impact our business.
The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 contains provisions to improve transparency and accountability concerning the supply of certain minerals, known as conflict minerals, originating from the Democratic Republic of Congo (the “DRC”) and adjoining countries. The SEC requires annual disclosure and reporting requirements for those companies who use conflict minerals mined from the DRC and adjoining countries in their products. We incur costs associated with complying with these disclosure requirements, including for diligence to determine the sources of conflict minerals used in our products and other potential changes to products, processes or sources of supply as a consequence of such verification activities. These rules could adversely affect the sourcing, supply and pricing of materials used in our products. As there may be only a limited number of suppliers offering “conflict free” conflict minerals, we cannot be sure that we will be able to obtain necessary conflict minerals from such suppliers in sufficient quantities or at competitive prices.
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ITEM 1B.    UNRESOLVED STAFF COMMENTS.
None.

ITEM 1C.    CYBERSECURITY.
Risk Management and Strategy
The Company has adopted processes designed to identify, assess and manage material risks from cybersecurity threats, which are integrated into the Company’s overall risk management systems and processes. Those processes include response to and an assessment of internal and external threats to the security, confidentiality, integrity and availability of our data and information systems, along with other material risks to our operations. The Company references the National Institute of Standards and Technology Cybersecurity Framework to help identify, assess, and manage cybersecurity risks and has adopted and tested a formal cybersecurity incident response plan. As part of our risk management process, the Company also engages third-party providers to conduct periodic internal and external penetration testing and maturity assessments. The Company stores data on premise and in cloud environments, with security appropriate to the data involved and has adopted controls around, among other things, access and acceptable use, backup and recovery and vendor risk assessment.
Our cybersecurity program is managed by the Cyber Incident Response Team (the “CIRT”), which is led by the Global IT Director, System Infrastructure Manager and the Network Infrastructure Manager, each with over 20 years of experience in IT. The CIRT serves as the core team responsible for managing the enterprise-wide cybersecurity policy, maintenance and compliance across all platforms. The CIRT is responsible for the detection and initial assessment of potential cybersecurity threats and incidents. The CIRT classifies detected cyber incidents to allow prioritization, response and escalation. Incidents are documented for internal reporting processes and regularly shared with senior management.
In the event of a potential cybersecurity incident, the CIRT will conduct an assessment to determine the nature and scope of the incident and manages the incident in accordance with our incident response plan until the incident is contained and resolved. The CIRT will document findings and make them available to the Disclosure Committee, which includes cross functional senior management representation from information technology, legal, finance, investor relations and business segments. The Disclosure Committee, in conjunction with third-party experts, including outside legal counsel, is responsible for assessing the materiality of any cybersecurity incident and coordinating external communications and disclosures, including with the Securities and Exchange Commission.
On a quarterly basis, our employees, contractors, and other users of the Company’s systems and networks are required to take cybersecurity training. The training is designed to provide employees and contractors with a baseline understanding of cybersecurity fundamentals to prevent security breaches and safely identify potential threats. These trainings are administered through a collaboration with third-party services and systems and address various topics, including how to handle sensitive and personal information, physical security of intellectual property, how to identify phishing attempts, reducing our risk to being phished and how to improve cybersecurity intelligence while working from home.
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As of ContentsDecember 31, 2023, we are not aware of any cybersecurity threats that have materially affected or are reasonably likely to materially affect the Company's business strategy, results of operations, or financial condition, although we may be materially affected in the future by such risks or future material incidents. See “Risk Factors—Risks Related to Our Business Operations—Disruption, failure or cyber security breaches affecting or targeting computers and infrastructure used by us or our business partners may adversely impact our business and operations” for additional information regarding cybersecurity risks.
Governance
Roles and Responsibilities
Cybersecurity is an important part of our risk management processes and an area of focus for Ecovyst’s management and Board of Directors. We continue to invest in cybersecurity and the resiliency of our networks and to enhance our internal controls and processes, which are designed to help protect our systems and infrastructure and the information they contain.
Our Board is actively involved in the assessment, oversight and management of the material risks that could affect the Company. The Board carries out its risk oversight and management responsibilities by monitoring risk directly as a full Board and, where appropriate, through its committees. The Board has delegated to the Audit Committee the responsibility to oversee the integrity of the Company’s information technology and cybersecurity risks and to assess the risks and incidents relating to cybersecurity threats. While our Board and Audit Committee oversee cybersecurity risk, management, through the CIRT, is responsible for the implementation and management of cybersecurity risk management systems and processes and for the communication of incidents to senior management and the Audit Committee.
The CIRT meets with the CEO and other members of our senior management on a quarterly basis and meets with the Audit Committee at least annually. Additionally, the Audit Committee regularly meets with members of the Company’s internal audit function to discuss risk management activities, compliance, best practices, and other related matters.
ITEM 2.    PROPERTIES.
Our operating headquarters are located in Malvern, Pennsylvania and our primary research and development facility is in Conshohocken, Pennsylvania. As of December 31, 2020,2023, we had 40ten manufacturing facilities in 13 countries on five continents.two countries. We also had 9five administrative facilities and 4two research and development facilities located in 6three countries. Our joint ventures operated out of 5two facilities located in 2 countries, including 3 manufacturing facilities. We also own or lease other properties, including office buildings, warehouses, testing facilities and sales offices.two countries.
The table below presents summary information regarding our principal manufacturing facilities that we own as of December 31, 2020.2023.
LocationOwned or 
leased
Segment(1)
Rio Claro, BrazilOwnedPC, CAT
Pasuruan, IndonesiaOwnedPC, CAT
Tlalnepantla, MexicoOwnedPC
Eijsden, Netherlands
Owned/Leased(2)
PC
Warrington, United KingdomOwnedCAT, PC
Baton Rouge, Louisiana, United StatesOwnedEcoservicesRS
Baytown, Texas, United StatesOwnedEcoservicesRS
Dominguez, California, United StatesEcoservices
Delfzijl, The Netherlands(1)
OwnedRSAdvanced Materials & Catalysts
Hammond, Indiana, United StatesOwnedEcoservicesRS
Houston, Texas, United StatesOwnedEcoservicesRS
Kansas City, Kansas, United States
Owned(3)(1)
CATAdvanced Materials & Catalysts
Martinez, California, United StatesOwnedEcoservices
West Orange, Texas, United StatesRSEcoservices
Portland, Oregon, United StatesOwnedEcoservicesRS

(1)    RS: Refining Services; CAT: Catalysts; PC: Performance Chemicals.
(2)    Approximately 26,902 square feet is owned and approximately 1,767 square feet is leased.
(3)    We lease a portion of the site to ourthe Zeolyst Joint Venture.
40


ITEM 3.    LEGAL PROCEEDINGS.
From time to time we may be subject to various legal claims and proceedings incidental to the normal conduct of business, relating to such matters as personal injury, product liability and warranty claims, waste disposal practices, release of chemicals into the environment and other matters that may arise in the ordinary course of our business. We currently believe that there is no litigation pending that is likely to have a material adverse effect on our business. Regardless of the outcome, legal proceedings can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.
ITEM 4.    MINE SAFETY DISCLOSURES.
Not applicable.
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PART II
ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.
Market Information, Holders and Dividends
Our common stock began tradingtrades on the New York Stock Exchange (“NYSE”) under the symbol “PQG” on September 29, 2017.“ECVT”. As of March 12, 2021,February 23, 2024, there were 8011 shareholders of record of our common stock. A substantially greater number of holders of our common stock hold their shares in “street name” through banks, brokers and other financial institutions.
On December 14, 2020, we announced that our board of directors had declared a special cash dividend of $1.80 per share, using after tax cash proceeds and cash on hand from the sale of the Performance Materials business. The dividend was paid to our stockholders of record at the close of business on December 21, 2020.
We have announced an intent to pay a special cash dividend of $2.50 to $3.25 per share, subject to board approval and declaration, to be financed with the cash proceeds from our anticipated sale of our Performance Chemicals business upon the anticipated close in 2021.
We have not and do not currently intend to pay regular dividends on our common stock in the foreseeable future. The declaration and payment of any future dividends by our Board of Directors is subject to compliance with the covenants contained in the agreements governing our credit facilities, the indentures governing our outstanding notes, applicable law and other considerations. See Note 1716 to our consolidated financial statements included in this Form 10-K for detailsinformation regarding covenant restrictions on the payment of dividends under our debt agreements.
Stock Performance Graph
The graph below shows the cumulative total shareholder return of our common stock for the period from September 29, 2017December 31, 2018 to December 31, 20202023 as compared to the cumulative total return of the Russell 2000 Total Return Index and the S&P 1500 Specialty Chemicals Index, assuming an investment of $100 made at the respective closing prices on September 29, 2017.December 31, 2018. The information contained in the graph below is furnished and therefore not to be considered “filed” with the SEC, and is not incorporated by reference into any document that incorporates this Form 10-K by reference.
Comparison of Cumulative Total Return as of December 31, 2020
Assumes Initial Investment of $100 on September 29, 2017
pqg-20201231_g6.jpg1570


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9/29/201712/31/201712/31/201812/31/201912/31/2020
PQG$100 $95 $86 $100 $94 
Russell 2000100 103 92 112 138 
SP 1500 Spec Chem100 106 99 114 137 

12/31/201812/31/201912/31/202012/31/202112/31/202212/31/2023
ECVT (formerly PQG)$100 $116 $110 $98 $85 $93 
Russell 2000100 126 151 173 138 161 
SP 1500 Spec Chem100 118 138 176 132 152 
Issuer Purchases of Equity Securities
Tax Withholdings
The following table contains information about purchases of our common stock during the fourth quarter of 2023.
Total Number of
Shares of Common Stock
Purchased as Part of
Publicly Announced
Plan or Programs
Maximum Number
(or Dollar Value) of
Shares of Common Stock
that May Yet Be
Purchased Under the
Plans or Programs (3)
Total Number of
Shares of Common
Stock Purchased (1)
Average Price
Paid per Share of
Common Stock (2)
October 1, 2023 — October 31, 2023— $— $234,592 
November 1, 2023 — November 30, 2023— $— $234,592 
December 1, 2023 — December 31, 2023— $— $234,592 
Total— 
2022 Stock Repurchase Program
(1)    During the three months ended December 31, 2023, the Company did not repurchase shares on the open market or accrue excise tax related to these repurchases, net of shares issued under the Company’s equity incentive program. As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
(2)     Excludes brokerage commissions and other costs of execution.    
(3)    In April 2022, our Board of Directors approved a stock repurchase program that authorized the Company to purchase up to $450 million of the Company’s common stock over the four-year period from the date of approval. This program is expected to be funded using cash on hand and cash generated from operations. We primarily expect to conduct the repurchase program through negotiated transactions with the Company’s equity sponsors, as well as through open market repurchases or other means, including through Rule 10b-18 trading plans or through the use of other techniques such as accelerated share repurchases. The actual timing, number and nature of shares repurchased will depend on a variety of factors, including stock, price, trading volume, and general business and market conditions. The repurchase program does not obligate us to acquire any number of shares in any specific period or at all and may be amended, suspended or discontinued at any time at our discretion.
On August 16, 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA imposes a 15% corporate alternative minimum tax for certain large corporations with average annual adjusted financial statement income in excess of $1 billion for tax years beginning after December 31, 2022, levies a 1% excise tax on net stock repurchases after December 31, 2022, and provides tax incentives to promote clean energy. Historically the Company has made discretionary share repurchases under its share repurchase programs.
Tax Withholdings
(1)    In connection with the vesting of restricted stock awards, restricted stock units and performance stock units, shares of common stock may be delivered to the Company by employees to satisfy withholding tax obligations at the instruction of the employee award holders. These transactions when they occur, are accounted for as stock repurchases by the Company, with the shares returned to treasury stock at a cost representing the payment by the Company of the tax obligations on behalf of the employees in connection withlieu of shares for the vesting of restricted stock awards and restricted stock unitsunit. There were no such transactions during the fourth quarter of 2020.
Maximum Number
(or Dollar Value) of
Shares of Common Stock
that May Yet Be
Purchased Under the
Plans or Programs
Total Number of
Shares of Common Stock
Purchased as Part of
Publicly Announced
Plan or Programs
Total Number of
Shares of Common
Stock Purchased
Average Price
Paid per Share of
Common Stock
October 202052,733 $10.38 N/AN/A
November 2020— $— N/AN/A
December 2020— $— N/AN/A
Total52,733 

three months ended December 31, 2023.

ITEM 6.    [Removed and Reserved]
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ITEM 6.    [Reserved]
ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
Overview
We are a leading integrated and innovative global provider of advanced materials, specialty catalysts chemicals and services with leading supply positions acrossservices. We believe that our portfolio. We compete in the global specialty chemicals and materials industry where we seek to focus on attractive, high-growth applications. Our products and services provide critical performancecontribute to our customers’ products and we are able to offer manyimproving the sustainability of our customers regionally sourced materials to reduce costs and improve delivery logistics. We provide our customers with a combination of product technology and applications knowledge, global supply chain capabilities, and local production and logistical support.the environment.
We conduct operations through three reportingtwo reporting segments: (1) Refining Services,Ecoservices and (2) Advanced Materials & Catalysts (including our 50% interest in the Zeolyst Joint Venture) and (3) Performance Chemicals..
Refining Services:Ecoservices: We are thea leading provider of sulfuric acid recycling services to the North American refineriesrefining industry for the production of alkylate, an essential gasoline component for lowering vapor pressure and increasing octane to meet stringent gasoline specifications and fuel efficiency standards. We are also a leading North American producer of on-purposehigh quality and high strength virgin sulfuric acid for waterindustrial and mining applications. We also provide chemical waste handling and treatment mining,services, as well as ex-situ catalyst activation services for the refining and industrial applications.petrochemical industry.
Catalysts:Advanced Materials & Catalysts: We are a global supplier of finished silica catalystscatalyst, catalyst supports and catalyst supportsfunctionalized silicas necessary to produce high strengthperforming plastics and high stiffness plastics usedto enable sustainable chemistry. This segment includes our 50% interest in packaging films, bottles, containers, and other molded applications. Wethe Zeolyst Joint Venture, where we are also a leading global supplier of zeolites used for catalysts that support the production of sustainable fuels, remove nitrogen oxides from diesel engine emissions as well as sulfur from fuels duringand are broadly applied in refining and petrochemical processes.
Effective November 28, 2023, the refining process.
Performance Chemicals: We are a leading global supplierCompany renamed the Catalyst Technologies segment to Advanced Materials & Catalysts. Beginning with the year ended December 31, 2023, the segment results and disclosures included in the Company’s consolidated financial statements reflect the new segment name for all periods presented. This change to the Company’s segment name does not change the Company’s consolidated balance sheets, statements of silicate and derivative products which serve as an environmentally friendly substituteincome or cash flows for materials used in a variety of applications. These include end uses such as matting agents in surface coatings, clarifying agents for edible oils and beverages, additives for paints and coatings, and in cosmetics to improve feel attributes.the prior periods or the way the Company’s chief operating decision maker (“CODM”) evaluated the business.
In 2020,2023, we served over 2,000global customers globally across many end uses and, as of December 31, 2020,2023, operated out of 40 manufacturing facilities, which areten strategically located across five continents.manufacturing facilities.
On December 14, 2020, we completed the sale of our Performance Materials business to Potters Buyer, LLC, (the “Purchaser”), an affiliate of The Jordan Company, L.P. Effective on August 1, 2021, we completed the sale of our Performance Chemicals business to Sparta Aggregator L.P., for a purchase price of $650 million, which was subject to certain adjustments for indebtedness, working capitalpartnership with Koch Minerals & Trading, LLC and cash at the closing of the transaction.Cerberus Capital Management, L.P. The results of operations, financial condition, and cash flows for the Performance Materials and Performance Chemicals businesses are presented herein as discontinued operations.operations for the 2022 and 2021 periods presented. Refer to Note 4 toof our Consolidated Financial Statementsconsolidated financial statements for additional information.
Recent Developments
On March 1, 2021, we announced that we entered into a definitive agreement to sell our Performance Chemicals business for a purchase price of $1.1 billion. We expect to use after-tax cash proceeds from the sale to reduce debt and return capital to our shareholders, subject to board approval and declaration. The transaction is expected to close by the end of 2021, subject to regulatory approvals and customary closing conditions. Beginning in the first quarter of 2021, we expect to present the financial results of the Performance Chemicals business as discontinued operations.
Impact of COVID-19Economic Effects on our Business and Results
In March 2020,We continue to monitor the outbreak of COVID-19 was declared a national emergency bydevelopments in Russia and Ukraine, as well as the United States. COVID-19 continues to spread throughoutrelated economic sanctions and export controls imposed on certain industry sectors. Although the worldcurrent conflict has created global economic and has adversely impacted economic activitypolitical uncertainties and contributed to volatility in financial markets. In response to the COVID-19 pandemic, the federal government, various states, local and foreign governments have issued decrees and orders that have disrupted many businesses and implemented social distancing, travel and other restrictions. In response to these restrictions,affected certain supply chain disruptions, we do not believe we have taken a variety of actions, including an international travel ban, distribution of personal protective equipment to employees, and work-at-home requirements for many of our employees who are not an integral part of our manufacturing operations.significant exposure in those countries. We have also implementedno operations in Russia or Ukraine. We had no sales to customers in Ukraine and refined our existing business continuity plansRussia in an effort to minimize disruptions to our operations. These measures remain in place as of December 31, 2020.
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Recent2023 and Near Term Trends on Business Segment End Uses
The COVID-19 pandemic ledour sales to unprecedented disruptions within the macro economy, with lower sales volume demand during 2020, including the fourth quarter. The timing and magnitude of the impact to sales volume demand varied across our portfolio of businesses due to the many end uses.
Most of PQ’s end use customers experienced improved demand during the fourth quarter, largely driven by a recovery of consumer products ranging from packaged products to automotive sales. The construction and mining segments also demonstrated improving demand. The company continues to match costs and production with the pattern and pace of demand recovery, which remains variable across end use subsectors.
Duringcustomer in Russia were immaterial for the year ended December 31, 2020 we took actions to mitigate the slowdown in our business as a result of the effects of COVID-19, including adjusting our production levels to meet anticipated customer demand, reducing discretionary spending, furloughs, delaying headcount additions2022 and deferring capital maintenance expenditures.
Key end use trends in our business segments during2% for the year and expectations are described below:
Refining Services: This business segment was impacted the quickest by COVID-19, but beganended December 31, 2021. We also did not make any purchases from suppliers in Russia or Ukraine. As Russia’s invasion of Ukraine continues to see a significant rebound in demand through the fourth quarter of 2020. Stay-at-home mandates during the first and second quarters led to rapid and significant reductions in gasoline demand in the U.S. As stay-at-home restrictions were lifted near the end of the second quarter, gasoline consumption recovered to approximately 90% of 2019 levels during the third and fourth quarters. Apart from weather events,unfold, we expect refinery utilization to continue to improve through 2021. Once demand is restored to 2019 levels, PQ believes alkylate production will continue to grow, drivenmonitor compliance with sanctions imposed by higher octane fuel blending. Virgin sulfuric acid demand from industrialthe U.S. government and mining customers beganother countries.
We continue to rebound duringmonitor the third quarter and reached 2019 demand levels by year end. We expect demand for virgin sulfuric acid to grow in 2021.
Catalysts: We experienced strong demand for hydrocracking catalysts, which we sold through our Zeolyst Joint Venture during the first half of the year. During the second half of 2020, some customers deferred catalyst bed change-outs due to lower refinery utilization rates. We expect a rebounddevelopments in the second half of 2021 with demand for hydrocracking catalysts improving asMiddle East. Although the year progresses. Demand forCompany experienced shipment delays, the impact remained immaterial on our emission control catalysts used in heavy-duty diesel vehicles decreased during the second and third quarters as our customers temporarily curtailed their production to align with lower demand. Demand for emission control catalysts began to improve near year end and the improvement is continuing into 2021. Polyethene catalyst demand remains strong due to increased consumer consumption of films and packaging. Demand for catalysts used to make polyethylene improved in 2020 and we expect it to continue to improve in 2021. Overall, we expect the strong polyolefin catalyst demand and recovering emission catalyst demand to be more than offset by lower refinery catalyst demand during the first half of 2021. During the second half of the year we also expect to see improvement in refinery catalyst demand.
Performance Chemicals: We experienced lower demand for sodium silicate used in industrial applications and chemical manufacturing beginning in the second quarter of 2020. By year end, we experienced recovery of demand across multiple end uses including automotive, coatings and fuel efficient tires. Consumption for our products sold to the personal care and consumer cleaning experienced steady demand during the pandemic.
Operations and Supply
Throughout the COVID-19 pandemic, our manufacturing facilities have continued to operate and have been providing critical materials necessary to aid in combating the COVID-19 pandemic and products we manufacture for other essential businesses. Our manufacturing plants require a limited number of on-site employees in order to continue to operate effectively. We have not experienced any material production issues to date, but have had limited and temporary shutdowns or slowdowns in some of our facilities. We have also seen limited disruptions in the availability of certain of our raw materials and other supplies, which to date have not had a material impact on production.

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Coronavirus Aid, Relief and Economic Security (“CARES”) Act2022 Stock Repurchase Program
On MarchApril 27, 2020,2022, the CARES Act was signed into law. The provisionsBoard approved a stock repurchase program that authorized the Company to purchase up to $450 million of the CARES Act provide substantial stimulusCompany’s common stock over the four-year period from the date of approval. During the year-ended December 31, 2023, the Company repurchased 541,494 shares on the open market at an average price of $9.85 per share, for a total of $5.3 million, excluding brokerage commissions and financial assistance measures intended to mitigate the impactaccrued excise tax. Additionally, in connection with secondary offerings of the COVID-19 pandemic, including certain tax relief provisions. As permitted withinCompany’s common stock in March and May 2023, the CARES Act, we began deferring paymentCompany repurchased 7,000,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $10.48 per share concurrently with the closing of the employer portionofferings, for a total of social security taxes$73.4 million, excluding accrued excise tax.
As of December 31, 2023, $234.6 million was available for additional share repurchases under the program.
During the year-ended December 31, 2022, the Company repurchased 1,970,763 shares on the open market at an average price of $9.82 per share, for a total of $19.4 million, excluding brokerage commissions. Additionally, in connection with secondary offerings of the Company’s common stock in August and November 2022, the Company repurchased 14,500,000 shares of its common stock sold in the second quarter and continued to defer throughofferings from the endunderwriters at a weighted average price of 2020,$8.09 per share concurrently with 50%the closing of the deferred amount due December 31, 2021 and the remaining 50% due December 31, 2022. This deferral provided approximately $4.5 million in additional liquidity in 2020.
The impactofferings, for a total of the COVID-19 outbreak and associated containment and remediation efforts is rapidly evolving. We expect the duration and magnitude of the virus’s impact on the levels of economic activity in the United States and globally to affect the magnitude of its impact on our results of operations, which could be material.$117.3 million.
Basis of Presentation
Our zeolite catalysts product group operates through the Zeolyst Joint Venture, which we account for as an equity method investment in accordance with GAAP.accounting principles generally accepted in the United States (“GAAP”). We do not record sales by the Zeolyst Joint Venture as revenue and such sales are not consolidated within our results of operations. However, net income and Adjusted EBITDA reflects our share of the earnings of the Zeolyst Joint Venture that have been recorded as equity in net income from affiliated companies in our consolidated statements of income and includes Zeolyst Joint Venture adjustments on a proportionate basis based on our 50% ownership interest.
Key Performance Indicators
Adjusted EBITDA and Adjusted Net Income
Adjusted EBITDA and adjusted net income are financial measures that are not prepared in accordance with GAAP and that we use to evaluate our operating performance, for business planning purposes and to measure our performance relative to that of our competitors. Adjusted EBITDA and adjusted net income are presented as key performance indicators as we believe these financial measures will enhance a prospective investor’s understanding of our results of operations and financial condition. EBITDA consists of net income (loss) attributable to continuing operations before interest, taxes, depreciation and amortization. Adjusted EBITDA consists of EBITDA adjusted for (i) non-operating income or expense, (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) and EBITDA that we do not consider indicative of our ongoing operating performance, and (iii) depreciation, amortization and interest of our 50% share of the Zeolyst Joint Venture. Adjusted net income consists of net income (loss) attributable to PQ Group Holdings adjusted for (i) non-operating income or expense and (ii) the impact of certain non-cash, nonrecurring or other items included in net income (loss) that we do not consider indicative of our ongoing operating performance. We believe that these non-GAAP financial measures provide investors with useful financial metrics to assess our operating performance from period-to-period by excluding certain items that we believe are not representative of our core business.
You should not consider adjustedAdjusted EBITDA or adjusted net income in isolation or as alternatives to the presentation of our financial results in accordance with GAAP. The presentation of adjustedAdjusted EBITDA and adjusted net income financial measures may differ from similar measures reported by other companies and may not be comparable to other similarly titled measures. In evaluating adjustedAdjusted EBITDA and adjusted net income, you should be aware that we are likely to incur expenses similar to those eliminated in this presentation in the future and that certain of these items could be considered recurring in nature. Our presentation of adjustedAdjusted EBITDA and adjusted net income should not be construed as an inference that our future results will be unaffected by unusual or nonrecurring items. Reconciliations of adjustedAdjusted EBITDA and adjusted net income to GAAP net income (loss) are included in the results of operations discussion that follows for each of the respective periods.

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Key Factors and Trends Affecting Operating Results and Financial Condition
Sales
Our Refining ServicesOverall, our Ecoservices and Catalysts segments' sales have grown primarily due to expansion into new end applications, including emission control catalysts, polymer catalysts, and refining catalysts, as well as continued supply share gains. Sales in our Refining Services andAdvanced Materials & Catalysts segments are made on both a purchase order basis and pursuantcontinued to long-term contracts.
Historically, our Performance Chemicals segment has experienced relatively stablebenefit from demand throughout economic cycles, due to the diverse consumer and industrial end uses thattrends for our products and services in the industries we serve. ExpansionsWhile sales of our virgin sulfuric acid into new applications,the production of nylon intermediates and sales of polyethylene catalysts weakened in the second half of 2023, demand across the balance of product categories, end-uses and customers throughout 2023 remained positive. Contractual pass-through mechanisms and targeted price increases have served to mitigate the adverse impacts of inflationary pressures in 2023, including personal carehigher variable costs on our businesses and consumer cleaning, as well as share gains in existing end uses, have added to our sales growth. Product sales from our Performance Chemicals segment are made on both a purchase order basissupply chain constraints, including limited availability and pursuant to long-term contracts.higher costs for energy, logistics, and other raw materials.
Cost of Goods Sold
Cost of goods sold consists of variable product costs, fixed manufacturing expenses, depreciation expense and freight expenses. Variable product costs include all raw materials, energy and packaging costs that are directly related to the manufacturing process. Fixed manufacturing expenses include all plant employment costs, manufacturing overhead and periodic maintenance costs.
The primary raw materials for our Refining ServicesEcoservices segment include spent sulfuric acid, sulfur, sodium silicates, acids, bases (including sodium hydroxide, or “caustic soda”), and certain metals. Spent sulfuric acid for our Ecoservices segment is supplied by customers for a nominal charge as part of their contracts. The primary raw materials used in the manufacture of products in our Performance Chemicals andAdvanced Materials & Catalysts segmentssegment include soda ash, industrial sand, aluminum trihydratesodium silicate and sodium hydroxide (also known as "caustic soda").cesium hydroxide. During the second quarter of 2023, inflationary pressures began to ease, which reduced the cost of goods for sulfur, energy, logistics and other raw materials.
Most of our Refining ServicesEcoservices contracts feature take-or-pay volume protection and/or quarterly price adjustments for commodity inputs, labor, the Chemical Engineering Index (U.S. chemical plant construction cost index) and natural gas. Spent acid for our Refining Services segment is supplied by customers for a nominal charge as part of their contracts. Over 80% of our Refining ServicesEcoservices segment sales for the year ended December 31, 20202023 were under contracts featuring quarterly price adjustments. The price adjustments generally reflect actual costs for producing acid and tend to protect us from volatility in labor, fixed costs and raw material pricing.
For the year ended December 31, 2020, approximately 50% of our North American silicate sales, which is a significant portion of our Performance Chemicals segment sales, were derived from contracts that included raw material pass-through clauses. Under these contracts, there generally is a time lag of three The take-or-pay volume protection allows us to nine months for price changes to passcover fixed costs through depending on the magnitude of the change in cost and other market dynamics. Freight expenses are generally passed through directly to customers.intermittent, temporary production issues at customer refineries.
While natural gas is not a direct feedstock for any product, all businesses use natural gas powered furnacesmachinery and equipment are used to heat raw materials and create the chemical reactions necessary to produce end-products. We maintain multiple suppliers wherever possible hedge exposure to fluctuations in prices for natural gas purchases in the United States, make forward purchases of natural gas in the United States, Canada, and Europe to mitigate our exposure to price volatility, and structure our customer contracts when possible to allow for the pass-through of raw material, labor and natural gas costs.
Joint Ventures
We account for our investments in our equity joint ventures under the equity method. Our largest joint venture, the Zeolyst Joint Venture, manufactures high performance, specialty, zeolite-based catalysts, for useused in the emission control, industry, therefining and petrochemical industry applications and other areas ofby the broader chemicals industry. Demand for the Zeolyst Joint Venture products fluctuates based upon the timing of our customer’s fixed bed catalyst replacements. We share proportionally in the management of our joint venturesventure with the other parties to each such joint venture.
Seasonality
Our Refining Servicesregeneration services product group, which is a part of our Ecoservices segment, typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer months and lower demand in the winter months. These demand fluctuations results in higher sales and working capital requirements in the second and third quarter.quarters.

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Foreign Currency
As a global business, we are subject to the impact of gains and losses on currency translations, which occur when the financial statementsstatements of foreign operations are translated into U.S. dollars. We operate a geographically diverse businessin various geographies with approximately 40%6% of our sales for the years ended December 31, 20202023 and 20192022 in currencies other than the U.S. dollar. Because our consolidated financial results are reported in U.S. dollars, sales or earnings generated in currencies other thanthan the U.S. dollar can result in a significant increase or decrease in the amount of those sales and earnings when translated to U.S. dollars. The foreign currenciescurrency to which we have the most significant exchange rate exposure includeis the Euro, British pound, Canadian dollar, Brazilian real and the Mexican peso.Pound.
Results of Operations
Year Ended December 31, 20202023 Compared to the Year Ended December 31, 20192022
Highlights
The following is a summary of our financial performance for the year ended December 31, 20202023 compared with the year ended December 31, 2019.2022.
Sales
•     Sales decreased $92.5$129.1 million to $1,107.4$691.1 million. The decrease in sales was primarily due to lower sales volumes,volume and the unfavorable effects of foreign currency translation, and pass-through of lower sulfur pricing.costs, offset by higher average selling prices, after adjusting for impact of the pass-through of lower sulfur costs.
Gross Profit
•     Gross profit decreased $25.0$26.8 million to $273.4$197.9 million. The decrease in gross profit was primarily due to lower sales volumes and the unfavorable effects of foreign currency translation, partly offset by favorable fixed manufacturing costs.volume.
Operating (Loss) Income
•    Operating (loss) income decreased $310.4$7.7 million to $162.9$96.7 million. The decrease in operating (loss) income was primarily due to a goodwill impairment charge of $260.0 million related to our Performance Chemicals segment, athe decrease in gross profit, offset by lower selling, general and an increase in transaction-related charges for the year ended December 31, 2020.administrative expenses and other operating expenses.
Equity in Net Income from Affiliated Companies
•    Equity in net income of affiliated companies for the year ended December 31, 2020increased $2.9 million to $30.6 million. The increase was $21.2 million, compared with net income of $46.0 million for the year ended December 31, 2019. The decrease wasprimarily due to lower earnings of $24.6 million generated byhigher sales within the Zeolyst Joint Venture duringpartially offset by the year ended December 31, 2020 as compared to the year ended December 31, 2019.impact of unfavorable fixed cost absorption.
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The following is our consolidated statement of income and a summary of financial results for the years ended December 31, 20202023 and 2019.2022.
Years ended
December 31,
Change
20202019$%
(in millions, except percentages)
Sales$1,107.4 $1,199.9 $(92.5)(7.7)%
Cost of goods sold834.0 901.5 (67.5)(7.5)%
Gross profit273.4 298.4 (25.0)(8.4)%
Gross profit margin24.7 %24.9 %
Selling, general and administrative expenses125.3 129.5 (4.2)(3.2)%
Goodwill impairment charge260.0 — 260.0 — %
Other operating expense, net51.0 21.4 29.6 138.3 %
Operating (loss) income(162.9)147.5 (310.4)(210.4)%
Operating income margin(14.7)%12.3 %
Equity in net income from affiliated companies(21.2)(46.0)24.8 (53.9)%
Interest expense, net67.0 87.1 (20.1)(23.1)%
Debt extinguishment costs25.0 3.4 21.6 635.3 %
Other (income) expense, net(6.1)(2.4)(3.7)154.2 %
Loss (income) from continuing operations before income taxes and noncontrolling interest(227.6)105.4 (333.0)(315.9)%
(Benefit) provision for income taxes(48.1)39.7 (87.8)(221.2)%
Effective tax rate21.1 %37.6 %
Net (loss) income from continuing operations(179.5)65.7 (245.2)(373.2)%
Net (loss) income from discontinued operations, net of tax(102.2)14.6 (116.8)(800.0)%
Net (loss) income(281.7)80.3 (362.0)(450.8)%
Less: Net (loss) income attributable to the noncontrolling interest - continuing operations(3.2)0.6 (3.8)(633.3)%
Less: Net income (loss) attributable to the noncontrolling interest - discontinued operations$0.3 $0.2 $0.1 50.0 %
Net (loss) income attributable to PQ Group Holdings Inc.$(278.8)$79.5 $(358.3)(450.7)%
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales$691.1 $820.2 $(129.1)(15.7)%
Cost of goods sold493.2 595.5 (102.3)(17.2)%
Gross profit197.9 224.7 (26.8)(11.9)%
Gross profit margin28.6 %27.4 %
Selling, general and administrative expenses79.2 85.3 (6.1)(7.2)%
Other operating expense, net22.0 35.0 (13.0)(37.1)%
Operating income96.7 104.4 (7.7)(7.4)%
Operating income margin14.0 %12.7 %
Equity in net income from affiliated companies(30.6)(27.7)(2.9)10.5 %
Interest expense, net44.7 37.2 7.5 20.2 %
Other expense, net0.6 0.2 0.4 200.0 %
Income from continuing operations before income taxes82.0 94.7 (12.7)(13.4)%
Provision for income taxes10.8 24.9 (14.1)(56.6)%
Effective tax rate13.2 %26.3 %
Net income from continuing operations71.2 69.8 1.4 2.0 %
Net income from discontinued operations, net of tax— 3.9 (3.9)(100.0)%
Net income$71.2 $73.7 $(2.5)(3.4)%

Sales
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales:
Ecoservices$584.8 $702.5 $(117.7)(16.8)%
Advanced Materials & Catalysts106.3 117.7 (11.4)(9.7)%
Total sales$691.1 $820.2 $(129.1)(15.7)%
Ecoservices: Sales in Ecoservices for the year ended December 31, 2023 were $584.8 million, a decrease of $117.7 million, or 16.8%, compared with sales of $702.5 million for the year ended December 31, 2022. The decrease in sales reflects lower sales volume of $52.1 million and the negative impact associated with the pass-through of lower sulfur costs of approximately $86 million, offset by higher average selling pricing of $20.4 million, after adjusting for the impact of the pass-through of lower sulfur costs.
Sales volume was lower primarily due to lower virgin sulfuric acid sales associated with the adverse impact of Winter Storm Elliott earlier in the year, extended maintenance turnaround activity at our facilities and lower end use demand of virgin sulfuric acid, primarily in the production of nylon intermediates. Favorable pricing continued to benefit Ecoservices, driven by higher contractual and index pricing within regeneration services, as well as the pass-through of higher freight costs.


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Sales
Years ended
December 31,
Change
20202019$%
(in millions, except percentages)
Sales:
Refining Services$401.9 $447.1 $(45.2)(10.1)%
Catalysts94.0 85.7 8.3 9.7 %
Performance Chemicals614.7 670.5 (55.8)(8.3)%
Eliminations(3.2)(3.4)0.2 
Total sales$1,107.4 $1,199.9 $(92.5)(7.7)%
Refining ServicesAdvanced Materials & Catalysts: Sales in Refining ServicesAdvanced Materials & Catalysts for the year ended December 31, 20202023 were $401.9$106.3 million, a decrease of $45.2$11.4 million, or 10.1%9.7%, compared towith sales of $447.1$117.7 million for the year ended December 31, 2019.2022. The decrease in sales was primarily due to lower sales volumesvolume of $26.7$24.2 million, partially offset by higher average selling prices of $12.4 million and lower average selling price from pass-through costs of $18.5 million.
The decrease in volumes was due to lower regeneration services demand from refinery utilization rates driven by COVID-19. The unfavorable pricing was driven by pass-through of lower sulfur costs.
Catalysts: Sales in Catalysts for the year ended December 31, 2020 were $94.0 million, an increase of $8.3 million, or 9.7%, compared to sales of $85.7 million for the year ended December 31, 2019. The increase in sales was primarily due to higher sales volumes of $10.6 million, partly offset by lower average selling price from product mix of $1.2 million and the unfavorable effects of foreign currency translation of $1.1 million.
The increase in sales was due to higher customer demand within our polyolefin catalysts product line.
Performance Chemicals: Sales in Performance Chemicals for the year ended December 31, 2020 were $614.7 million, a decrease of $55.8 million, or 8.3%, compared to sales of $670.5 million for the year ended December 31, 2019. The decrease in sales was primarily due to lower sales volumes driven by COVID19 of $48.6 million and the unfavorable effects of foreign currency translation of $15.0 million, which was partially offset by higher average selling price and favorable mix of $7.8$0.4 million.
The decrease in sales volume was a result of lower volumes sold for consumer products and industrial and process chemicals applications and the unfavorable effects of foreign currency translationprimarily driven by lower end use demand for polyethylene catalysts and niche custom catalysts during the stronger U.S. dollar.year ended December 31, 2023. The higher average selling prices were primarily driven by implemented price increases.
Gross Profit
Gross profit for the year ended December 31, 20202023 was $273.4$197.9 million, a decrease of $25.0$26.8 million, or 8.4%11.9%, compared with $298.4$224.7 million for the year ended December 31, 2019.2022. The decrease in gross profit is primarily driven by lower sales volume of $30.1 million as well as unfavorable manufacturing costs of $29.5 million, partially offset by favorable average selling prices of $32.8 million, exclusive of the pass-through of sulfur costs.
Sales volume was lower primarily due to lower volumes of $37.7 million, unfavorable average selling price of $11.9 million, and the unfavorable effects of foreign currency translation of $4.2 million, partly offset by favorable manufacturing costs of $30.9 million.
The decrease in volumes was due to a decline invirgin sulfuric acid sales and lower sales for consumer and industrial products applications. Unfavorable customer pricingpolyethylene catalysts sales. The unfavorable manufacturing costs was primarily a result of pass-through of lower sulfur costs. The unfavorable effects of foreign currency were driven by costs related to the stronger U.S. dollar. The favorable change in manufacturing costs were driven by lower labor costsextended maintenance turnaround activity, planned turnaround activity, and the timing of planthigher unplanned repair and maintenance projects.costs.
Selling, General and Administrative Expenses
Selling, general and administrative expenses for the year ended December 31, 20202023 were $125.3$79.2 million, a decrease of $4.2$6.1 million or 3.2%, compared with $129.5$85.3 million for the year ended December 31, 2019.2022. The decrease in selling, general and administrative expenses was mainly due to lower discretionary spendinga decrease in compensation related costs of $6.3 million and lower researcha decrease in stock-based compensation expense of $4.6 million driven by fewer overall awards granted and development expenditures partially offset by an increase in stock compensation expense.
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Goodwill Impairment Charge
We assess goodwill for impairment annually, or more frequently, if events or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. We perform our annual impairment test of goodwill as of October 1 of each year. As a result of our annual test, we determined that the fair value of our Performance Chemicals reporting unit was lower than its carrying value. This resulted in a $260.0 million chargeoutstanding for the year ended December 31, 2020.2023. This was partly offset by an increase in professional fees of $3.4 million primarily related to consulting and recruiting charges.
Other Operating Expense, Net
Other operating expense, net for the year ended December 31, 20202023 was $51.0$22.0 million, an increasea decrease of $29.6$13.0 million, or 138.3%37.1%, compared with $21.4$35.0 million for the year ended December 31, 2019.2022. The increasedecrease in other operating expense, net was primarily due to current year restructuring costsmainly driven by severance charges incurred on asset disposals and business divestiture costsin the prior period from contracts associated with our pending former executives and residual costs from the sale of ourthe Performance Chemicals business. Duringbusiness and other transactions costs for the year ended December 31, 2019, we realized a gain of $11.0 million on the disposition of assets related to a non-core product line as well a gain of $7.1 million on the sale of property.2022.
Equity in Net Income offrom Affiliated Companies
Equity in net income offrom affiliated companies for the year ended December 31, 20202023 was $21.2$30.6 million, a decreasean increase of $24.8$2.9 million or 10.5%, compared with income of $46.0$27.7 million for the year ended December 31, 2019.2022. The decreaseincrease was primarily due to $26.7 million of earnings generated byhigher sales for hydrocracking, sustainable fuels and emission control catalysts within the Zeolyst Joint Venture partially offset by the impact of unfavorable fixed cost absorption during the year ended December 31, 20202023 as compared to $52.2 million for the year ended December 31, 2019, which was a result of the timing of hydrocracking catalyst change-outs and lower demand for custom catalysts and emission control catalysts in heavy duty diesel production driven by the COVID-19 pandemic.2022.
Interest Expense, Net
Interest expense, net for the year ended December 31, 20202023 was $67.0$44.7 million, a decreasean increase of $20.1$7.5 million, as compared with $87.1$37.2 million for the year ended December 31, 2019. 2022. The decreaseincrease in interest expense was due to lower interest rates on our variable rate debt along with lower average debt balances and a favorableyear over year increase in variable versus fixed rate debt.
Debt Extinguishment Costs
Debt extinguishment costsrates, which was partially offset by lower outstanding debt for the yearsyear ended December 31, 2020 and 2019 were $25.0 million and $3.4 million, respectively.
On December 14, 2020, we completed the sale of our Performance Materials business which triggered an obligation2023, as compared to provide partial payment under our existing senior secured term loan facility and our new senior secured term loan facility. As a result of the required payments, previous unamortized deferred financing costs of $2.7 million and original issue discount of $5.8 million were written off as debt extinguishment costs.
On July 22, 2020, we entered into an agreement for a new senior secured term loan facility in an aggregate principal amount of $650.0 million, which was used to repay the remaining outstanding balance of $625.0 million on the 6.75% Senior Secured Notes due 2022. In conjunction with the issuance of the senior secured term loan facility, we paid $10.6 million in prepayment premiums and recorded $0.1 million of new creditor and third-party financing fees as debt extinguishment costs. In addition, previous unamortized deferred financing costs of $2.1 million and original issue discount of $1.2 million associated with the 6.75% Senior Secured Notes due 2022 were written off as debt extinguishment costs.
On February 7, 2020, we amended our existing senior secured term loan facility to reduce the applicable interest rates and extend the maturity of the facility to February 2027. We recorded $2.2 million of new creditor and third-party financing fees as debt extinguishment costs. In addition, previously unamortized deferred financing costs of $0.1 million and original issue discount of $0.2 million associated with the existing senior secured term loan facility were written off as debt extinguishment costs.
During the year ended December 31, 2019, we prepaid $210.0 million of outstanding principal balance on2022. This was offset by the Term Loan Facility (as defined below). In connectionbenefits associated with this prepayment, we wrote off $1.0 million of previously unamortized deferred financing costs and original issue discount of $2.4 million as debt extinguishment costs.
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our interest rate caps, Table of Contentswhich included an adjustment related to prior year interest rate amortization.
Other (Income) Expense, Net
Other (income) expense, net was income of $6.1$0.6 million for the year ended December 31, 2020, a favorable change2023, an increase of $3.7$0.4 million, compared with income of $2.4$0.2 million for the year ended December 31, 2019. 2022. The change primarily related to $4.2a $1.6 million ofchange in net gains in foreign currency gains on the non-permanent intercompany debt denominated in local currency and translated to U.S. dollars and transactional currency translation in the current year period as compared to foreign currency lossesand a change of $2.4$1.1 million in the prior year period.pension plan costs.
(Benefit)
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Provision for Income Taxes
The (benefit) provision for income taxes for the year ended December 31, 20202023 was a $48.1$10.8 million benefit compared to a $39.7with $24.9 million provision for the year ended December 31, 2019.2022. The effective income tax rate for the year ended December 31, 20202023 was 21.1%13.2% compared to 37.6%26.3% for the year ended December 31, 2019.2022. The difference between the U.S. federal statutory income tax rate and our effective income tax rate for the year ended December 31, 20202023 was mainly due to the impact of the Global Intangible Low Taxed Income (“GILTI”) provisions of U.S.a valuation allowance release connected to our state investment tax reform,credit carryovers, foreign tax credit benefit, and goodwill impairment.the Section 162(m) deduction limitation for “covered” employees with compensation in excess of $1 million, along with the tax deductibility of stock compensation. The difference between the U.S. federal statutory income tax rate and our effective income tax rate for the year ended December 31, 20192022 was mainly due to the impact of the GILTI provisionsSection 162(m) deduction limitation for “covered” employees with compensation in excess of U.S.$1 million, along with the tax reform, the effectdeductibility of permanent differences related to foreign currency exchange gain or loss, differing tax rates in foreign jurisdictions as compared to the U.S. statutory tax rate, tax rate changes and state taxes.stock compensation.
Net (Loss) Income Attributable to PQ Group Holdings
For the foregoing reasons, and after the effect of the non-controlling interest in earnings of subsidiaries for each period presented, net loss attributable to PQ Group Holdingsincome was $278.8$71.2 million for the year ended December 31, 20202023 as compared to net income of $79.5$73.7 million for the year ended December 31, 2019.2022.
Adjusted EBITDA
Summarized SegmentEBITDA and Adjusted EBITDA information is shown below in the following table:
Years ended
December 31,
Change
20202019$%
(in millions, except percentages)
Segment Adjusted EBITDA(1):
Refining Services$157.2 $175.6 $(18.4)(10.5)%
Catalysts(2)
74.5 107.8 (33.3)(30.9)%
Performance Chemicals142.4 151.5 (9.1)(6.0)%
Total Segment Adjusted EBITDA(3)
374.1 434.9 (60.8)(14.0)%
Unallocated corporate expenses(36.1)(41.0)4.9 (12.0)%
Adjusted EBITDA$338.0 $393.9 $(55.9)(14.2)%

Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Adjusted EBITDA(1):
Ecoservices$200.0 $227.8 $(27.8)(12.2)%
Advanced Materials & Catalysts(2)
81.9 78.0 3.9 5.0 %
Unallocated corporate expenses(22.0)(29.0)7.0 (24.1)%
Total$259.9 $276.8 $(16.9)(6.1)%
(1)We define Segment Adjusted EBITDA as EBITDA adjusted for certain items as noted in the reconciliation below. Our management evaluates the performance of our segments and allocates resources based primarily on Segment Adjusted EBITDA. Segment Adjusted EBITDA does not represent cash flow for periods presented and should not be considered as an alternative to net income as an indicator of our operating performance or as an alternative to cash flows as a source of liquidity. Segment Adjusted EBITDA may not be comparable with EBITDA or Adjusted EBITDA as defined by other companies.
(2)The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $42.5was $50.5 million for the year ended December 31, 2020,2023, which includes $21.2$30.7 million of equity in net income, excluding $6.6$6.4 million of amortization of investment in affiliate step-up plus $14.7$13.4 million of joint venture depreciation, amortization and interest. The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $68.1was $50.3 million for the year ended December 31, 2019,2022, which includes $45.9$27.9 million of equity in net income, excluding $7.5
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$6.4 million of amortization of investment in affiliate step-up plus $14.7$16.0 million of joint venture depreciation, amortization and interest.
(3)Our total Segment Adjusted EBITDA differs from our total consolidated Adjusted EBITDA due to unallocated corporate expenses.
Refining Services:Ecoservices: Adjusted EBITDA for the year ended December 31, 20202023 was $157.2$200.0 million, a decrease of $18.4$27.8 million, or 10.5%12.2%, compared with $175.6to $227.8 million for the year ended December 31, 2019. Refining Services adjusted2022. The decrease in Ecoservices’ Adjusted EBITDA decreased due to lower regeneration services demand as awas the result of reduced refinery utilization rates,lower sales volumes for virgin sulfuric acid, as well as higher unplanned repair and maintenance costs associated with production downtime at several of our manufacturing sites and the associated impact from Winter Storm Elliott, partially offset by fixedhigher average selling prices, excluding the pass-through of lower sulfur costs.
Favorable pricing continued to benefit Ecoservices driven by higher contractual pricing and SG&A related cost savings.index pricing within regeneration services as well as the pass through of higher freight costs. The Winter Storm Elliott and unplanned production downtime drove both lower sales of virgin sulfuric acid as well as higher maintenance costs during the year.
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Catalysts: Adjusted EBITDA forIn addition, the year ended December 31, 2020lower volume was $74.5 million,driven by a decrease of $33.3 million, or 30.9%, compared with $107.8 millionin demand for the year ended December 31, 2019. Adjusted EBITDA decreased due to lower volumesvirgin sulfuric acid used in the Zeolyst joint venture and unfavorable inventory absorption due to lower production and inventory depletion to align with expected lower demand.of nylon intermediates.
Performance Chemicals:Advanced Materials & Catalysts: Adjusted EBITDA for the year ended December 31, 20202023 was $142.4$81.9 million, a decreasean increase of $9.1$3.9 million, or 6.0%5.0%, compared with $151.5$78.0 million for the year ended December 31, 2019. The decrease in2022. Adjusted EBITDA wasincreased due to lower volumes of product sold for industrial and consumer product applications and the strengthening of the U.S. dollar, which washigher average selling prices from implemented price increases, partially offset by lower volume from decreased demand for polyethylene catalysts and the timing of niche custom catalyst sales. In addition, within the Zeolyst Joint Venture, strong pricing and higher sales of hydrocracking catalyst, emission control catalyst and catalyst used in the production of sustainable fuels was offset by higher manufacturing costs and the year-over-year impact of prior year unfavorable fixed and selling, general and administrative related cost savings.absorption.
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A reconciliation of net (loss) income attributable to PQ Group HoldingsEcovyst Inc. to Segment Adjusted EBITDA is as follows:
Years ended
December 31,
20202019
(in millions)
Reconciliation of net (loss) income attributable to PQ Group Holdings Inc. to Segment Adjusted EBITDA
Net (loss) income from continuing operations$(176.3)$65.1 
(Benefit) provision for income taxes(48.1)39.7 
Interest expense, net67.0 87.1 
Depreciation and amortization151.8 151.8 
EBITDA(5.6)343.7 
Joint venture depreciation, amortization and interest(a)
14.7 14.7 
Amortization of investment in affiliate step-up(b)
6.6 7.5 
Goodwill impairment charge260.0 — 
Debt extinguishment costs25.0 3.4 
Net gain on asset disposals(c)
(0.1)(13.2)
Foreign currency exchange (gain) loss(d)
(4.2)2.4 
LIFO expense(e)
(5.2)9.7 
Transaction and other related costs(f)
8.6 0.4 
Equity-based compensation21.5 16.2 
Restructuring, integration and business optimization expenses(g)
15.6 3.6 
Defined benefit plan pension cost(h)
— 3.0 
Other(i)
1.1 2.5 
Adjusted EBITDA338.0 393.9 
Unallocated corporate expenses36.1 41.0 
Segment Adjusted EBITDA$374.1 $434.9 

Years ended
December 31,
20232022
(in millions)
Reconciliation of net income to Adjusted EBITDA
Net income from continuing operations$71.2 $69.8 
Provision for income taxes10.8 24.9 
Interest expense, net44.7 37.2 
Depreciation and amortization84.6 79.2 
EBITDA211.3 211.1 
Joint venture depreciation, amortization and interest(a)
13.4 16.0 
Amortization of investment in affiliate step-up(b)
6.4 6.4 
Net loss on asset disposals(c)
4.1 3.6 
Foreign currency exchange (gain) loss(d)
(1.3)1.4 
LIFO expense (benefit)(e)
3.5 (0.2)
Transaction and other related costs(f)
3.0 7.0 
Equity-based compensation16.0 20.6 
Restructuring, integration and business optimization expenses(g)
2.7 11.6 
Other(h)
0.8 (0.7)
Adjusted EBITDA$259.9 $276.8 
(a)We use Adjusted EBITDA as a performance measure to evaluate our financial results. Because our Advanced Materials & Catalysts segment includes our 50% interest in the Zeolyst Joint Venture, we include an adjustment for our 50% proportionate share of depreciation, amortization and interest expense of the Zeolyst Joint Venture.
(b)Represents the amortization of the fair value adjustments associated with the equity affiliate investment in the Zeolyst Joint Venture as a result of the Business Combination.combination of the businesses of PQ Holdings Inc. and Eco Services Operations LLC in May 2016. We determined the fair value of the equity affiliate investment and the fair value step-up was then attributed to the underlying assets of the Zeolyst Joint Venture. Amortization is primarily related to the fair value adjustments associated with fixed assets and intangible assets, including customer relationships and technical know-how.
(c)When asset disposals occur, we remove the impact of net gain/loss of the disposed asset because such impact primarily reflects the non-cash write-off of long-lived assets no longer in use. During the years ended December 31, 2020 and 2019, respectively, the net gain on asset disposals includes the gains related to the sale of a non-core product line and sale of property.
(d)Reflects the exclusion of the foreign currency transaction gains and losses in the statements of income primarily related to the non-permanent intercompany debt denominated in local currency translated to U.S. dollars.
(e)Represents non-cash adjustments to the Company’s LIFO reserves for certain inventories in the U.S. that are valued using the LIFO method, effectively reflecting the results as if these inventories were valued using the FIFO
50


method, which we believe provides a means of comparison to other companies that may not use the same basis of accounting for inventories.
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(f)Represents theRelates to certain transaction costs, including debt financing, due diligence and other costs related to several transactions that are completed, pending or abandoned, and that we believe are not representative of our ongoing business operations.
(g)Includes the impact of restructuring, integration and business optimization expenses, which are incremental costs that are not representative of our ongoing business operations.
(h)RepresentsOther consists of adjustments for defined benefit pension plan costs in our statement of income. More than two-thirds of our defined benefit pension plan obligations are under defined benefit pension plans that are frozen, and the remaining obligations primarily relate to plans operated in certain of our non-U.S. locations that, pursuant to jurisdictional requirements, cannot be frozen. As such, we do not view such expenses as core to our ongoing business operations.
(i)Other costs consist of certain expensesitems that are not core to our ongoing business operations, includingoperations. These adjustments include environmental remediation-relatedremediation and other legal costs, associated with the legacy operations of our business prior to the Business Combination,expenses for capital and franchise taxes, and non-cash asset retirementdefined benefit pension and postretirement plan (benefits) costs, for which our obligations are under plans that are frozen. Also included in this amount are adjustments to eliminate the benefit realized in cost of goods sold of the allocation of a portion of the contract manufacturing payments under the five-year agreement with the buyer of the Performance Chemicals business to the financing obligation accretion.under the failed sale-leaseback. Included in this line-item are rounding discrepancies that may arise from rounding from dollars (in thousands) to dollars (in millions).
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AdjustedOperating Income
Operating income decreased $7.7 million to $96.7 million. The decrease in operating income was primarily due to the decrease in gross profit, offset by lower selling, general and administrative expenses and other operating expenses.
Equity in Net Income from Affiliated Companies
    Summarized adjustedEquity in net income informationof affiliated companies increased $2.9 million to $30.6 million. The increase was primarily due to higher sales within the Zeolyst Joint Venture partially offset by the impact of unfavorable fixed cost absorption.
46


The following is shown below inour consolidated statement of income and a summary of financial results for the following table:years ended December 31, 2023 and 2022.
Years ended December 31,
20202019
Pre-taxTax expense (benefit)After-taxPre-taxTax expense (benefit)After-tax
(in millions)
Reconciliation of net (loss) income attributable to PQ Group Holdings Inc. to Adjusted Net Income (1)(2)
Net (loss) income from continuing operations$(227.6)$(48.1)$(179.5)$105.4 $39.7 $65.7 
Less: Net (loss) income attributable to the non-controlling interest - continuing operations(3.2)— (3.2)0.6 — 0.6 
Net (loss) income attributable to PQ Group Holdings Inc.(224.4)(48.1)(176.3)104.8 39.7 65.1 
Amortization of investment in affiliate step-up(b)
6.6 1.7 4.9 7.5 1.9 5.6 
Goodwill impairment charge260.0 — 260.0 — — — 
Debt extinguishment costs25.0 6.3 18.7 3.4 0.9 2.5 
Net (gain) loss on asset disposals(c)
(0.1)(2.5)2.4 (13.2)(3.3)(9.9)
Foreign currency exchange (gain) loss(d)
(4.2)0.3 (4.5)2.4 1.4 1.0 
LIFO (benefit) expense(e)
(5.2)(1.3)(3.9)9.7 2.4 7.3 
Transaction and other related costs(f)
8.6 2.1 6.5 0.4 0.1 0.3 
Equity-based compensation21.5 4.9 16.6 16.2 3.7 12.5 
Restructuring, integration and business optimization expenses(g)
15.6 3.9 11.7 3.6 0.9 2.7 
Defined benefit plan pension cost(h)
— — — 3.0 0.7 2.3 
Other(i)
1.1 0.3 0.8 2.5 0.5 2.0 
Adjusted Net Income, including non-cash GILTI tax and tax reform104.5 (32.4)136.9 140.3 48.9 91.4 
Impact of non-cash GILTI tax(3)
— — — — (9.4)9.4 
Impact of tax reform(4)
— — — — (2.3)2.3 
Adjusted Net Income$104.5 $(32.4)$136.9 $140.3 $37.2 $103.1 
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales$691.1 $820.2 $(129.1)(15.7)%
Cost of goods sold493.2 595.5 (102.3)(17.2)%
Gross profit197.9 224.7 (26.8)(11.9)%
Gross profit margin28.6 %27.4 %
Selling, general and administrative expenses79.2 85.3 (6.1)(7.2)%
Other operating expense, net22.0 35.0 (13.0)(37.1)%
Operating income96.7 104.4 (7.7)(7.4)%
Operating income margin14.0 %12.7 %
Equity in net income from affiliated companies(30.6)(27.7)(2.9)10.5 %
Interest expense, net44.7 37.2 7.5 20.2 %
Other expense, net0.6 0.2 0.4 200.0 %
Income from continuing operations before income taxes82.0 94.7 (12.7)(13.4)%
Provision for income taxes10.8 24.9 (14.1)(56.6)%
Effective tax rate13.2 %26.3 %
Net income from continuing operations71.2 69.8 1.4 2.0 %
Net income from discontinued operations, net of tax— 3.9 (3.9)(100.0)%
Net income$71.2 $73.7 $(2.5)(3.4)%

Sales
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales:
Ecoservices$584.8 $702.5 $(117.7)(16.8)%
Advanced Materials & Catalysts106.3 117.7 (11.4)(9.7)%
Total sales$691.1 $820.2 $(129.1)(15.7)%
(1)EcoservicesWe define adjusted net inco: Sales in me as net (loss) income attributable to PQ Group Holdings adjusted Ecoservicesfor non-operating incomethe year ended December 31, 2023 were $584.8 million, a decrease of $117.7 million, or expense16.8%, compared with sales of $702.5 million for the year ended December 31, 2022. The decrease in sales reflects lower sales volume of $52.1 million and the negative impact of certain non-cash or other items that are included in net income that we do not consider indicative of our ongoing operating performance. Adjusted net income is presented as a key performance indicator as we believe it will enhance a prospective investor’s understanding of our results of operations and financial condition. Adjusted net income may not be comparable with net income or adjusted net income as defined by other companies.
(2)Refer to the Adjusted EBITDA notes above for more information with respect to each adjustment.
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(3)Amount represents the impact to tax expense in net income before non-controlling interest and the related adjustments to net income associated with the GILTI provisionspass-through of the Tax Cuts and Jobs Actlower sulfur costs of 2017 (“TCJA”). We are required to record the incremental tax provision impact with respect to GILTI as a resultapproximately $86 million, offset by higher average selling pricing of having historical U.S. net operating loss (“NOL”) amounts to offset the GILTI taxable income inclusion. This NOL utilization precluded us from recognizing GILTI credits which would otherwise help offset the tax impacts of GILTI. During the fourth quarter of 2020, as a result of the sale of the Performance Materials business, our NOL balance will be fully utilized. Beginning in the fourth quarter of 2020, we are no longer$20.4 million, after adjusting for the impact of the GILTI provisionspass-through of lower sulfur costs.
Sales volume was lower primarily due to lower virgin sulfuric acid sales associated with the TCJA sinceadverse impact of Winter Storm Elliott earlier in the NOLs have been fully utilizedyear, extended maintenance turnaround activity at our facilities and GILTI now represents a cash tax impact.lower end use demand of virgin sulfuric acid, primarily in the production of nylon intermediates. Favorable pricing continued to benefit Ecoservices, driven by higher contractual and index pricing within regeneration services, as well as the pass-through of higher freight costs.

(4)Represents the transition tax adjustment for the impact of the TCJA and the rate change in the Netherlands related to the Dutch Tax Plan 2019 recorded in net income.
The adjustments to net (loss) income attributable to PQ Group Holdings Inc. are shown net of applicable statutory tax rates.
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Year Ended December 31, 2019 Compared to the Year Ended December 31, 2018
Highlights
The following is a summary of our financial performanceAdvanced Materials & Catalysts: Sales in Advanced Materials & Catalysts for the year ended December 31, 20192023 were $106.3 million, a decrease of $11.4 million, or 9.7%, compared with sales of $117.7 million for the year ended December 31, 2018.
Sales
•     Sales decreased $29.0 million to $1,199.9 million.2022. The decrease in sales was primarily due to lower sales volumesvolume of $24.2 million, partially offset by higher average selling prices of $12.4 million and the unfavorable effects of foreign currency translation of $0.4 million.
The decrease in sales volume was primarily driven by lower end use demand for polyethylene catalysts and niche custom catalysts during the year ended December 31, 2023. The higher average selling prices were primarily driven by implemented price increases.
Gross Profit
Gross profit for the year ended December 31, 2023 was $197.9 million, a decrease of $26.8 million, or 11.9%, compared with $224.7 million for the year ended December 31, 2022. The decrease in gross profit is primarily driven by lower sales volume of $30.1 million as well as unfavorable manufacturing costs of $29.5 million, partially offset by favorable average selling prices of $32.8 million, exclusive of the pass-through of sulfur costs.
Sales volume was lower primarily due to lower virgin sulfuric acid sales and lower polyethylene catalysts sales. The unfavorable manufacturing costs was primarily driven by costs related to the extended maintenance turnaround activity, planned turnaround activity, and higher unplanned repair and maintenance costs.
Selling, General and Administrative Expenses
Selling, general and administrative expenses for the year ended December 31, 2023 were $79.2 million, a decrease of $6.1 million compared with $85.3 million for the year ended December 31, 2022. The decrease in selling, general and administrative expenses was mainly due to a decrease in compensation related costs of $6.3 million and a decrease in stock-based compensation expense of $4.6 million driven by fewer overall awards granted and outstanding for the year ended December 31, 2023. This was partly offset by an increase in professional fees of $3.4 million primarily related to consulting and recruiting charges.
Other Operating Expense, Net
Other operating expense, net for the year ended December 31, 2023 was $22.0 million, a decrease of $13.0 million, or 37.1%, compared with $35.0 million for the year ended December 31, 2022. The decrease in other operating expense, net was mainly driven by severance charges incurred in the prior period from contracts associated with former executives and residual costs from the sale of the Performance Chemicals business and other transactions costs for the year ended December 31, 2022.
Equity in Net Income from Affiliated Companies
Equity in net income from affiliated companies for the year ended December 31, 2023 was $30.6 million, an increase of $2.9 million or 10.5%, compared with $27.7 million for the year ended December 31, 2022. The increase was primarily due to higher sales for hydrocracking, sustainable fuels and emission control catalysts within the Zeolyst Joint Venture partially offset by the impact of unfavorable fixed cost absorption during the year ended December 31, 2023 as compared to the year ended December 31, 2022.
Interest Expense, Net
Interest expense, net for the year ended December 31, 2023 was $44.7 million, an increase of $7.5 million, as compared with $37.2 million for the year ended December 31, 2022. The increase in interest expense was due to year over year increase in variable rates, which was partially offset by higher average customer priceslower outstanding debt for the year ended December 31, 2023, as compared to the year ended December 31, 2022. This was offset by the benefits associated with our interest rate caps, which included an adjustment related to prior year interest rate amortization.
Other Expense, Net
Other expense, net was $0.6 million for the year ended December 31, 2023, an increase of $0.4 million, compared with $0.2 million for the year ended December 31, 2022. The change primarily related to a $1.6 million change in net gains in foreign currency translation in the current year and favorable mix.a change of $1.1 million in pension plan costs.
Gross Profit
•     Gross profit decreased $5.0
48


Provision for Income Taxes
The provision for income taxes for the year ended December 31, 2023 was $10.8 million compared with $24.9 million for the year ended December 31, 2022. The effective income tax rate for the year ended December 31, 2023 was 13.2% compared to $298.4 million.26.3% forthe year ended December 31, 2022. The difference between the U.S. federal statutory income tax rate and oureffective income tax rate for the year ended December 31, 2023 was mainly due to the impact of a valuation allowance release connected to our state investment tax credit carryovers, foreign tax credit benefit, the Section 162(m) deduction limitation for “covered” employees with compensation in excess of $1 million, along with the tax deductibility of stock compensation. The difference between the U.S. federal statutory income tax rate and oureffective income tax rate for the year ended December 31, 2022 was mainly due the impact of the Section 162(m) deduction limitation for “covered” employees with compensation in excess of $1 million, along with the tax deductibility of stock compensation.
Net Income
For the foregoing reasons, net income was $71.2 million for the year ended December 31, 2023 as compared to $73.7 million for the year ended December 31, 2022.
Adjusted EBITDA
Summarized EBITDA and Adjusted EBITDA information is shown below in the following table:
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Adjusted EBITDA(1):
Ecoservices$200.0 $227.8 $(27.8)(12.2)%
Advanced Materials & Catalysts(2)
81.9 78.0 3.9 5.0 %
Unallocated corporate expenses(22.0)(29.0)7.0 (24.1)%
Total$259.9 $276.8 $(16.9)(6.1)%
(1)We define Adjusted EBITDA as EBITDA adjusted for certain items as noted in the reconciliation below. Our management evaluates the performance of our segments and allocates resources based primarily on Adjusted EBITDA. Adjusted EBITDA does not represent cash flow for periods presented and should not be considered as an alternative to net income as an indicator of our operating performance or as an alternative to cash flows as a source of liquidity. Adjusted EBITDA may not be comparable with EBITDA or Adjusted EBITDA as defined by other companies.
(2)The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment was $50.5 million for the year ended December 31, 2023, which includes $30.7 million of equity in net income, excluding $6.4 million of amortization of investment in affiliate step-up plus $13.4 million of joint venture depreciation, amortization and interest. The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment was $50.3 million for the year ended December 31, 2022, which includes $27.9 million of equity in net income, excluding $6.4 million of amortization of investment in affiliate step-up plus $16.0 million of joint venture depreciation, amortization and interest.
Ecoservices: Adjusted EBITDA for the year ended December 31, 2023 was $200.0 million, a decrease of $27.8 million, or 12.2%, compared to $227.8 million for the year ended December 31, 2022. The decrease in gross profitEcoservices’ Adjusted EBITDA was primarily due tothe result of lower sales volumes unfavorablefor virgin sulfuric acid, as well as higher unplanned repair and maintenance costs associated with production downtime at several of our manufacturing sites and the associated impact from Winter Storm Elliott, partially offset by higher average selling prices, excluding the pass-through of lower sulfur costs.
Favorable pricing continued to benefit Ecoservices driven by higher contractual pricing and index pricing within regeneration services as well as the pass through of higher freight costs. The Winter Storm Elliott and unplanned production downtime drove both lower sales of virgin sulfuric acid as well as higher maintenance costs during the year.
49


In addition, the lower volume was driven by a decrease in demand for virgin sulfuric acid used in the production of nylon intermediates.
Advanced Materials & Catalysts: Adjusted EBITDA for the year ended December 31, 2023 was $81.9 million, an increase of $3.9 million, or 5.0%, compared with $78.0 million for the year ended December 31, 2022. Adjusted EBITDA increased due higher average selling prices from implemented price increases, partially offset by lower volume from decreased demand for polyethylene catalysts and the timing of niche custom catalyst sales. In addition, within the Zeolyst Joint Venture, strong pricing and higher sales of hydrocracking catalyst, emission control catalyst and catalyst used in the production of sustainable fuels was offset by higher manufacturing costs and the year-over-year impact of prior year unfavorable effectsfixed cost absorption.
A reconciliation of net income attributable to Ecovyst Inc. to Adjusted EBITDA is as follows:
Years ended
December 31,
20232022
(in millions)
Reconciliation of net income to Adjusted EBITDA
Net income from continuing operations$71.2 $69.8 
Provision for income taxes10.8 24.9 
Interest expense, net44.7 37.2 
Depreciation and amortization84.6 79.2 
EBITDA211.3 211.1 
Joint venture depreciation, amortization and interest(a)
13.4 16.0 
Amortization of investment in affiliate step-up(b)
6.4 6.4 
Net loss on asset disposals(c)
4.1 3.6 
Foreign currency exchange (gain) loss(d)
(1.3)1.4 
LIFO expense (benefit)(e)
3.5 (0.2)
Transaction and other related costs(f)
3.0 7.0 
Equity-based compensation16.0 20.6 
Restructuring, integration and business optimization expenses(g)
2.7 11.6 
Other(h)
0.8 (0.7)
Adjusted EBITDA$259.9 $276.8 
(a)We use Adjusted EBITDA as a performance measure to evaluate our financial results. Because our Advanced Materials & Catalysts segment includes our 50% interest in the Zeolyst Joint Venture, we include an adjustment for our 50% proportionate share of depreciation, amortization and interest expense of the Zeolyst Joint Venture.
(b)Represents the amortization of the fair value adjustments associated with the equity affiliate investment in the Zeolyst Joint Venture as a result of the combination of the businesses of PQ Holdings Inc. and Eco Services Operations LLC in May 2016. We determined the fair value of the equity affiliate investment and the fair value step-up was then attributed to the underlying assets of the Zeolyst Joint Venture. Amortization is primarily related to the fair value adjustments associated with intangible assets, including customer relationships and technical know-how.
(c)When asset disposals occur, we remove the impact of net gain/loss of the disposed asset because such impact primarily reflects the non-cash write-off of long-lived assets no longer in use.
(d)Reflects the exclusion of the foreign currency translation,transaction gains and losses in the statements of income related to the non-permanent intercompany debt denominated in local currency translated to U.S. dollars.
(e)Represents non-cash adjustments to the Company’s LIFO reserves for certain inventories in the U.S. that are valued using the LIFO method, effectively reflecting the results as if these inventories were valued using the FIFO
50


method, which was partially offset by favorable customer pricing.we believe provides a means of comparison to other companies that may not use the same basis of accounting for inventories.
(f)Relates to certain transaction costs, including debt financing, due diligence and other costs related to transactions that are completed, pending or abandoned, that we believe are not representative of our ongoing business operations.
(g)Includes the impact of restructuring, integration and business optimization expenses, which are incremental costs that are not representative of our ongoing business operations.
(h)Other consists of adjustments for items that are not core to our ongoing business operations. These adjustments include environmental remediation and other legal costs, expenses for capital and franchise taxes, and defined benefit pension and postretirement plan (benefits) costs, for which our obligations are under plans that are frozen. Also included in this amount are adjustments to eliminate the benefit realized in cost of goods sold of the allocation of a portion of the contract manufacturing payments under the five-year agreement with the buyer of the Performance Chemicals business to the financing obligation under the failed sale-leaseback. Included in this line-item are rounding discrepancies that may arise from rounding from dollars (in thousands) to dollars (in millions).
Operating Income
•    Operating income decreased by $8.1$7.7 million to $147.5$96.7 million. OurThe decrease in operating income was primarily due to athe decrease in gross profit, for the year ended December 31, 2019.offset by lower selling, general and administrative expenses and other operating expenses.
Equity in Net Income from Affiliated Companies
•    Equity in net income of affiliated companies for the year ended December 31, 2019 was $46.0increased $2.9 million compared with net income of $37.6 million for the year ended December 31, 2018.to $30.6 million. The increase was primarily due to higher earnings of $9.3 million generated bysales within the Zeolyst Joint Venture duringpartially offset by the year ended December 31, 2019 as compared to the year ended December 31, 2018.impact of unfavorable fixed cost absorption.
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The following is our consolidated statement of income and a summary of financial results for the years ended December 31, 20192023 and 2018.2022.
Years ended
December 31,
Change
20192018$%
(in millions, except percentages)
Sales$1,199.9 $1,228.9 $(29.0)(2.4)%
Cost of goods sold901.5 925.5 (24.0)(2.6)%
Gross profit298.4 303.4 (5.0)(1.6)%
Gross profit margin24.9 %24.7 %
Selling, general and administrative expenses129.5 131.4 (1.9)(1.4)%
Other operating expense, net21.4 16.4 5.0 30.5 %
Operating income147.5 155.6 (8.1)(5.2)%
Operating income margin12.3 %12.7 %
Equity in net income from affiliated companies(46.0)(37.6)(8.4)22.3 %
Interest expense, net87.1 90.8 (3.7)(4.1)%
Debt extinguishment costs3.4 7.8 (4.4)(56.4)%
Other (income) expense, net(2.4)10.6 (13.0)(122.6)%
Income from continuing operations before income taxes and noncontrolling interest105.4 84.0 21.4 25.5 %
Provision for income taxes39.7 33.6 6.1 18.2 %
Effective tax rate37.6 %40.0 %
Net income from continuing operations65.7 50.4 15.3 30.4 %
Net income from discontinued operations, net of tax14.6 9.2 5.4 58.7 %
Net income80.3 59.6 20.7 34.7 %
Less: Net income attributable to the noncontrolling interest - continuing operations0.6 1.1 (0.5)(45.5)%
Less: Net income attributable to the noncontrolling interest - discontinued operations$0.2 $0.2 $— — %
Net income attributable to PQ Group Holdings Inc.$79.5 $58.3 $21.2 36.4 %
Sales
Years ended
December 31,
Change
20192018$%
(in millions, except percentages)
Sales:
Refining Services$447.1 $455.6 $(8.5)(1.9)%
Catalysts85.7 72.1 13.6 18.9 %
Performance Chemicals670.5 704.4 (33.9)(4.8)%
Eliminations(3.4)(3.2)(0.2)
Total sales$1,199.9 $1,228.9 $(29.0)(2.4)%
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales$691.1 $820.2 $(129.1)(15.7)%
Cost of goods sold493.2 595.5 (102.3)(17.2)%
Gross profit197.9 224.7 (26.8)(11.9)%
Gross profit margin28.6 %27.4 %
Selling, general and administrative expenses79.2 85.3 (6.1)(7.2)%
Other operating expense, net22.0 35.0 (13.0)(37.1)%
Operating income96.7 104.4 (7.7)(7.4)%
Operating income margin14.0 %12.7 %
Equity in net income from affiliated companies(30.6)(27.7)(2.9)10.5 %
Interest expense, net44.7 37.2 7.5 20.2 %
Other expense, net0.6 0.2 0.4 200.0 %
Income from continuing operations before income taxes82.0 94.7 (12.7)(13.4)%
Provision for income taxes10.8 24.9 (14.1)(56.6)%
Effective tax rate13.2 %26.3 %
Net income from continuing operations71.2 69.8 1.4 2.0 %
Net income from discontinued operations, net of tax— 3.9 (3.9)(100.0)%
Net income$71.2 $73.7 $(2.5)(3.4)%

Sales
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Table of Contents
Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Sales:
Ecoservices$584.8 $702.5 $(117.7)(16.8)%
Advanced Materials & Catalysts106.3 117.7 (11.4)(9.7)%
Total sales$691.1 $820.2 $(129.1)(15.7)%
Refining ServicesEcoservices: Sales in Refining ServicesEcoservices for the year ended December 31, 20192023 were $447.1$584.8 million, a decrease of $8.5$117.7 million, or 1.9%16.8%, compared towith sales of $455.6$702.5 million for the year ended December 31, 2018.2022. The decrease in sales reflects lower sales volume of $52.1 million and the negative impact associated with the pass-through of lower sulfur costs of approximately $86 million, offset by higher average selling pricing of $20.4 million, after adjusting for the impact of the pass-through of lower sulfur costs.
Sales volume was lower primarily due to lower virgin sulfuric acid sales associated with the adverse impact of Winter Storm Elliott earlier in the year, extended maintenance turnaround activity at our facilities and lower end use demand of virgin sulfuric acid, primarily in the production of nylon intermediates. Favorable pricing continued to benefit Ecoservices, driven by higher contractual and index pricing within regeneration services, as well as the pass-through of higher freight costs.


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Advanced Materials & Catalysts: Sales in Advanced Materials & Catalysts for the year ended December 31, 2023 were $106.3 million, a decrease of $11.4 million, or 9.7%, compared with sales of $117.7 million for the year ended December 31, 2022. The decrease in sales was primarily due to lower sales volumesvolume of $30.4$24.2 million, which was partially offset by favorable customer mix driving higher average selling prices of $21.9 million.
The decrease in volumes was due to lower demand for virgin sulfuric acid and unexpected customer plant outages. The favorable customer mix was driven by the roll-off of a below-market contract and other contract renewals in our regenerated sulfuric acid and virgin sulfuric acid product lines.
Catalysts: Sales in Catalysts for the year ended December 31, 2019 were $85.7 million, an increase of $13.6 million, or 18.9%, compared to sales of $72.1 million for the year ended December 31, 2018. The increase in sales was primarily due to higher sales volumes of $11.6$12.4 million and higher average selling price from product mix of $3.3 million.
The increase in sales was due to the timing of customer orders for methyl methacrylate catalyst and higher customer demand and pricing within our polyolefin catalysts product line.
Performance Chemicals: Sales in Performance Chemicals for the year ended December 31, 2019 were $670.5 million, a decrease of $33.9 million, or 4.8%, compared to sales of $704.4 million for the year ended December 31, 2018. The decrease in sales was primarily due to lower sales volumes of $36.4 million and the unfavorable effects of foreign currency translation of $17.5 million, which was partially offset by higher average selling price and favorable mix of $20.0$0.4 million.
The decrease in sales volume was a result of lower volumes sold to the consumer products and industrial and process chemicals industries and the unfavorable effects of foreign currency translationprimarily driven by lower end use demand for polyethylene catalysts and niche custom catalysts during the stronger U.S. dollar, which was partially offsetyear ended December 31, 2023. The higher average selling prices were primarily driven by higher pricing to cover raw material costimplemented price increases.
Gross Profit
Gross profit for the year ended December 31, 20192023 was $298.4$197.9 million, a decrease of $5.0$26.8 million, or 1.6%11.9%, compared with $303.4$224.7 million for the year ended December 31, 2018.2022. The decrease in gross profit was due tois primarily driven by lower volumessales volume of $31.7$30.1 million as well as unfavorable manufacturing costs of $22.0$29.5 million, and unfavorable foreign currency translation of $5.2 million, which was partially offset by favorable customer pricingaverage selling prices of $45.1$32.8 million, and favorable product mixexclusive of $8.3 million. the pass-through of sulfur costs.
The decrease in volumesSales volume was lower primarily due to a decline inlower virgin sulfuric acid sales and lower sales to the consumer and industrial products industries.polyethylene catalysts sales. The unfavorable change in manufacturing costs was primarily driven by costs related to the extended maintenance turnaround activity, planned turnaround activity, and higher labor costs, timing of plantunplanned repair and maintenance projects and increased transportation costs during the year ended December 31, 2019. The unfavorable effects of foreign currency were driven by the stronger U.S. dollar. Favorable customer pricing was primarily a result of a roll-off of a below-market contract in our virgin sulfuric acid product line. Favorable product mix was driven by increased volumes of higher-margin Silica Catalysts products.costs.
Selling, General and Administrative Expenses
Selling, general and administrative expenses for the year ended December 31, 20192023 were $129.5$79.2 million, a decrease of $1.9$6.1 million or 1.4%, compared with $131.4$85.3 million for the year ended December 31, 2018.2022. The decrease in selling, general and administrative expenses was mainly due to lower research and development expendituresa decrease in compensation related costs of $6.3 million and a decrease in professional fees, whichstock-based compensation expense of $4.6 million driven by fewer overall awards granted and outstanding for the year ended December 31, 2023. This was partiallypartly offset by an increase in compensation-related costs.professional fees of $3.4 million primarily related to consulting and recruiting charges.
Other Operating Expense, Net
Other operating expense, net for the year ended December 31, 20192023 was $21.4$22.0 million, an increasea decrease of $5.0$13.0 million, or 30.5%37.1%, compared with $16.4$35.0 million for the year ended December 31, 2018.2022. The increasedecrease in other operating expense, net was primarily due to the impact of non-recurring gainsmainly driven by severance charges incurred in the current year as compared toprior period from contracts associated with former executives and residual costs from the prior year. Duringsale of the Performance Chemicals business and other transactions costs for the year ended December 31, 2019 we realized a gain of $11.0 million on the disposition of assets related to a non-core product line as well as a gain of $7.1 million on the sale of property. During the year ended December 31, 2018, we recognized non-recurring gains on the termination of a customer supply contract of $20.6 million and insurance recoveries totaling $6.5 million related to losses sustained as a result of Hurricane Harvey in August 2017 (of which $5.5 million was recorded in other operating expense, net)2022.
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Equity in Net Income offrom Affiliated Companies
Equity in net income offrom affiliated companies for the year ended December 31, 20192023 was $46.0$30.6 million, an increase of $8.4$2.9 million or 10.5%, compared with income of $37.6$27.7 million for the year ended December 31, 2018.2022. The increase was primarily due to $52.2 million of earnings generated byhigher sales for hydrocracking, sustainable fuels and emission control catalysts within the Zeolyst Joint Venture partially offset by the impact of unfavorable fixed cost absorption during the year ended December 31, 20192023 as compared to $42.9 million for the year ended December 31, 2018 which was a result of higher year-over-year growth in hydrocracking catalyst and specialty chemical event-driven sales.2022.
Interest Expense, Net
Interest expense, net for the year ended December 31, 20192023 was $87.1$44.7 million, a decreasean increase of $3.7$7.5 million, as compared with $90.8$37.2 million for the year ended December 31, 2018. 2022. The decreaseincrease in interest expense was due to year over year increase in variable rates, which was partially offset by lower averageoutstanding debt balances.
Debt Extinguishment Costs
Debt extinguishment costs for the yearsyear ended December 31, 2019 and 2018 were $3.4 million and $7.8 million, respectively.
During 2023, as compared to the year ended December 31, 2019, we prepaid $210.0 million of outstanding principal balance on2022. This was offset by the Term Loan Facility (as defined below). In connection with this prepayment, we wrote off $1.0 million of previously unamortized deferred financing costs and original issue discount of $2.4 million as debt extinguishment costs.
During the year ended December 31, 2018, we prepaid $100.0 million of outstanding principal balance on the Term Loan Facility (as defined below). In connection with this prepayment, we wrote off $0.6 million of previously unamortized deferred financing costs and original issue discount of $1.3 million as debt extinguishment costs.
On February 8, 2018 we refinanced our existing senior secured term loan facility with a $1,267.0 million senior secured term loan facility to reduce the applicable interest rates. We recorded $2.1 million of new creditor and third-party financing fees as debt extinguishment costs. In addition, previously unamortized deferred financing costs of $1.4 million and original issue discount of $2.4 millionbenefits associated with the existing senior secured term loan facility were written off as debt extinguishment costs.our interest rate caps, which included an adjustment related to prior year interest rate amortization.
Other (Income) Expense, Net
Other (income) expense, net was income of $2.4$0.6 million for the year ended December 31, 2019, a favorable change2023, an increase of $13.0$0.4 million, compared with expense of $10.6$0.2 million for the year ended December 31, 2018. 2022. The change primarily consistedrelated to a $1.6 million change in net gains in foreign currency translation in the current year and a change of $2.3$1.1 million in sales and use tax refunds received during the year ended December 31, 2019 and $10.1 million of lower foreign currency losses primarily related to the non-permanent intercompany debt denominated in local currency and translated to U.S. dollars.pension plan costs.

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Provision for Income Taxes
The provision for income taxes for the year ended December 31, 20192023 was $39.7$10.8 million compared to a $33.6with $24.9 million provision for the year ended December 31, 2018.2022. The effective income tax rate for the year ended December 31, 20192023 was 37.6%13.2% compared to 40.0%26.3% for the year ended December 31, 2018.2022. The difference between the U.S. federal statutory income tax rate and our effective income tax rate for the year ended December 31, 20192023 was mainly due to the impact of a valuation allowance release connected to our state investment tax credit carryovers, foreign tax credit benefit, the GILTI provisionsSection 162(m) deduction limitation for “covered” employees with compensation in excess of U.S.$1 million, along with the tax reform, the effectdeductibility of permanent differences related to foreign currency exchange gain or loss, differing tax rates in foreign jurisdictions compared to the U.S. statutory tax rate, tax rate changes and state taxes.stock compensation. The difference between the U.S. federal statutory income tax rate and oureffective income tax rate for the year ended December 31, 20182022 was mainly due to the impact of the GILTI provisionsSection 162(m) deduction limitation for “covered” employees with compensation in excess of U.S.$1 million, along with the tax reform, the effectdeductibility of permanent differences related to foreign currency exchange gain or loss, changes in valuation allowances, differing tax rates in foreign jurisdictions as compared to the U.S. statutory tax rate and tax rate changes.stock compensation.
Net Income Attributable to PQ Group Holdings
For the foregoing reasons, and after the effect of the non-controlling interest in earnings of subsidiaries for each period presented, net income attributable to PQ Group Holdings was $79.5$71.2 million for the year ended December 31, 20192023 as compared to a net income of $58.3$73.7 million for the year ended December 31, 2018.
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2022.
Adjusted EBITDA
Summarized SegmentEBITDA and Adjusted EBITDA information is shown below in the following table:
Years ended
December 31,
Change
20192018$%
(in millions, except percentages)
Segment Adjusted EBITDA(1):
Refining Services$175.6 $176.5 $(0.9)(0.5)%
Catalysts(2)
107.8 81.1 26.7 32.9 %
Performance Chemicals151.5 168.2 (16.7)(9.9)%
Total Segment Adjusted EBITDA(3)
434.9 425.8 9.1 2.1 %
Unallocated corporate expenses(41.0)(37.8)(3.2)8.5 %
Adjusted EBITDA$393.9 $388.0 $5.9 1.5 %

Years ended
December 31,
Change
20232022$%
(in millions, except percentages)
Adjusted EBITDA(1):
Ecoservices$200.0 $227.8 $(27.8)(12.2)%
Advanced Materials & Catalysts(2)
81.9 78.0 3.9 5.0 %
Unallocated corporate expenses(22.0)(29.0)7.0 (24.1)%
Total$259.9 $276.8 $(16.9)(6.1)%
(1)We define Segment Adjusted EBITDA as EBITDA adjusted for certain items as noted in the reconciliation below. Our management evaluates the performance of our segments and allocates resources based primarily on Segment Adjusted EBITDA. Segment Adjusted EBITDA does not represent cash flow for periods presented and should not be considered as an alternative to net income as an indicator of our operating performance or as an alternative to cash flows as a source of liquidity. Segment Adjusted EBITDA may not be comparable with EBITDA or Adjusted EBITDA as defined by other companies.
(2)The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $68.1was $50.5 million for the year ended December 31, 2019,2023, which includes $45.9$30.7 million of equity in net income, excluding $7.5$6.4 million of amortization of investment in affiliate step-up plus $14.7$13.4 million of joint venture depreciation, amortization and interest. The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $56.7was $50.3 million for the year ended December 31, 2018,2022, which includes $37.5$27.9 million of equity in net income, excluding $6.6$6.4 million of amortization of investment in affiliate step-up plus $12.6$16.0 million of joint venture depreciation, amortization and interest.
(3)EcoservicesOur total Segment Adjusted EBITDA differs from our total consolidated Adjusted EBITDA due to unallocated corporate expenses.
Refining Services:: Adjusted EBITDA for the year ended December 31, 20192023 was $175.6$200.0 million, a decrease of $0.9$27.8 million, or 0.5%12.2%, compared with $176.5to $227.8 million for the year ended December 31, 2018. Refining Services adjusted2022. The decrease in Ecoservices’ Adjusted EBITDA was consistentthe result of lower sales volumes for virgin sulfuric acid, as well as higher unplanned repair and maintenance costs associated with production downtime at several of our manufacturing sites and the prior year,associated impact from Winter Storm Elliott, partially offset by higher average selling prices, excluding the pass-through of lower sulfur costs.
Favorable pricing continued to benefit Ecoservices driven by higher contractual pricing and negatively impactedindex pricing within regeneration services as well as the pass through of higher freight costs. The Winter Storm Elliott and unplanned production downtime drove both lower sales of virgin sulfuric acid as well as higher maintenance costs during the year.
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In addition, the lower volume was driven by decreaseda decrease in demand for virgin sulfuric acid unexpected customer plant outages, timingused in the production of plant turnaround costs and the absence of a gain from insurance proceeds related to Hurricane Harvey, which was offset by the roll-off of a below-market contract and other contract renewals in our regenerated sulfuric acid and virgin sulfuric acid product lines.nylon intermediates.
Advanced Materials & Catalysts:Adjusted EBITDA for the year ended December 31, 2019 was $107.8 million, an increase of $26.7 million, or 32.9%, compared with $81.1 million for the year ended December 31, 2018. Adjusted EBITDA increased due to favorable costs from building inventories to meet future sales commitments, higher polyolefin catalysts product group sales and increased sales of chemical synthesis catalysts sold to the methyl methacrylate end market.
Performance Chemicals: Adjusted EBITDA for the year ended December 31, 20192023 was $151.5$81.9 million, a decreasean increase of $16.7$3.9 million, or 9.9%5.0%, compared with $168.2$78.0 million for the year ended December 31, 2018. The decrease in2022. Adjusted EBITDA wasincreased due to lower volumes of product sold to the industrial and consumer product industries and the strengthening of the U.S. dollar, which washigher average selling prices from implemented price increases, partially offset by favorable product mix.
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Tablelower volume from decreased demand for polyethylene catalysts and the timing of Contentsniche custom catalyst sales. In addition, within the Zeolyst Joint Venture, strong pricing and higher sales of hydrocracking catalyst, emission control catalyst and catalyst used in the production of sustainable fuels was offset by higher manufacturing costs and the year-over-year impact of prior year unfavorable fixed cost absorption.
A reconciliation of net income attributable to PQ Group HoldingsEcovyst Inc. to Segment Adjusted EBITDA is as follows:
Years ended
December 31,
20192018
(in millions)
Reconciliation of net income attributable to PQ Group Holdings Inc. to Segment Adjusted EBITDA
Net income from continuing operations$65.1 $49.3 
Provision for income taxes39.7 33.6 
Interest expense, net87.1 90.8 
Depreciation and amortization151.8 153.9 
EBITDA343.7 327.6 
Joint venture depreciation, amortization and interest(a)
14.7 12.6 
Amortization of investment in affiliate step-up(b)
7.5 6.6 
Debt extinguishment costs3.4 7.8 
Net (gain) loss on asset disposals(c)
(13.2)4.2 
Foreign currency exchange loss(d)
2.4 12.5 
LIFO expense(e)
9.7 3.0 
Transaction and other related costs(f)
0.4 0.5 
Equity-based compensation16.2 18.4 
Restructuring, integration and business optimization expenses(g)
3.6 8.7 
Defined benefit plan pension cost(h)
3.0 0.4 
Gain on contract termination(i)
— (20.6)
Other(j)
2.5 6.2 
Adjusted EBITDA393.9 387.9 
Unallocated corporate expenses41.0 37.8 
Segment Adjusted EBITDA$434.9 $425.7 

Years ended
December 31,
20232022
(in millions)
Reconciliation of net income to Adjusted EBITDA
Net income from continuing operations$71.2 $69.8 
Provision for income taxes10.8 24.9 
Interest expense, net44.7 37.2 
Depreciation and amortization84.6 79.2 
EBITDA211.3 211.1 
Joint venture depreciation, amortization and interest(a)
13.4 16.0 
Amortization of investment in affiliate step-up(b)
6.4 6.4 
Net loss on asset disposals(c)
4.1 3.6 
Foreign currency exchange (gain) loss(d)
(1.3)1.4 
LIFO expense (benefit)(e)
3.5 (0.2)
Transaction and other related costs(f)
3.0 7.0 
Equity-based compensation16.0 20.6 
Restructuring, integration and business optimization expenses(g)
2.7 11.6 
Other(h)
0.8 (0.7)
Adjusted EBITDA$259.9 $276.8 
(a)We use Adjusted EBITDA as a performance measure to evaluate our financial results. Because our Advanced Materials & Catalysts segment includes our 50% interest in the Zeolyst Joint Venture, we include an adjustment for our 50% proportionate share of depreciation, amortization and interest expense of the Zeolyst Joint Venture.
(b)Represents the amortization of the fair value adjustments associated with the equity affiliate investment in the Zeolyst Joint Venture as a result of the Business Combination.combination of the businesses of PQ Holdings Inc. and Eco Services Operations LLC in May 2016. We determined the fair value of the equity affiliate investment and the fair value step-up was then attributed to the underlying assets of the Zeolyst Joint Venture. Amortization is primarily related to the fair value adjustments associated with inventory, fixed assets and intangible assets, including customer relationships and technical know-how.
(c)When asset disposals occur, we remove the impact of net gain/loss of the disposed asset because such impact primarily reflects the non-cash write-off of long-lived assets no longer in use. During the year ended December 31, 2019, the net gain on asset disposals includes the gains related to the sale of a non-core product line and sale of property.
(d)Reflects the exclusion of the foreign currency transaction gains and losses in the statements of income primarily related to the Euro-denominated term loan (which was settled as part of the February 2018 term loan refinancing) and the non-permanent intercompany debt denominated in local currency translated to U.S. dollars.
(e)Represents non-cash adjustments to the Company’s LIFO reserves for certain inventories in the U.S. that are valued using the LIFO method, effectively reflecting the results as if these inventories were valued using the FIFO
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method, which we believe provides a means of comparison to other companies that may not use the same basis of accounting for inventories.
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(f)Represents theRelates to certain transaction costs, including debt financing, due diligence and other costs related to several transactions that are completed, pending or abandoned, and that we believe are not representative of our ongoing business operations.
(g)Includes the impact of restructuring, integration and business optimization expenses, which are incremental costs that are not representative of our ongoing business operations.
(h)RepresentsOther consists of adjustments for defined benefit pension plan costs in our statement of income. More than two-thirds of our defined benefit pension plan obligations are under defined benefit pension plans that are frozen, and the remaining obligations primarily relate to plans operated in certain of our non-U.S. locations that, pursuant to jurisdictional requirements, cannot be frozen. As such, we do not view such expenses as core to our ongoing business operations.
(i)Represents a non-cash gain on the write-off of the remaining liability under a contractual supply arrangement. As part of Eco’s acquisition of substantially all of the assets of Solvay USA Inc’ sulfuric acid refining services business unit on December 1, 2014, we recognized a liability as part of business combination accounting related to our obligation to serve a customer under a pre-existing unfavorable supply agreement. In December 2018, the customer who was party to the agreement closed its facility, and as a result, we were relieved from our obligation to continue to supply the customer on the below market contract. Because the fair value of the unfavorable contract liability was recognized as part of the application of business combination accounting, and since the write-off of the remaining liability was non-cash in nature, we believe this gain is a special item that is not representative of our ongoing business operations.
(j)Other costs consist of certain expensesitems that are not core to our ongoing business operations, includingoperations. These adjustments include environmental remediation-relatedremediation and other legal costs, associated with the legacy operations of our business prior to the Business Combination,expenses for capital and franchise taxes, non-cash asset retirement obligation accretion and defined benefit pension and postretirement plan (benefits) costs, for which our obligations are under plans that are frozen. Also included in this amount are adjustments to eliminate the initial implementationbenefit realized in cost of procedures to comply with Section 404goods sold of the Sarbanes-Oxley Act.allocation of a portion of the contract manufacturing payments under the five-year agreement with the buyer of the Performance Chemicals business to the financing obligation under the failed sale-leaseback. Included in this line-item are rounding discrepancies that may arise from rounding from dollars (in thousands) to dollars (in millions).
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Adjusted Net Income
Summarized adjusted net income information is shown below in the following table:
Years ended December 31,
20192018
Pre-taxTax expense (benefit)After-taxPre-taxTax expense (benefit)After-tax
(in millions)
Reconciliation of net income attributable to PQ Group Holdings Inc. to Adjusted Net Income (1)(2)
Net income from continuing operations$105.4 $39.7 $65.7 $84.0 $33.6 $50.4 
Less: Net income attributable to the non-controlling interest - continuing operations0.6 — 0.6 1.1 — 1.1 
Net income attributable to PQ Group Holdings Inc.104.8 39.7 65.1 82.9 33.6 49.3 
Amortization of investment in affiliate step-up(b)
7.5 1.9 5.6 6.6 1.7 4.9 
Debt extinguishment costs3.4 0.9 2.5 7.8 2.0 5.8 
Net (gain) loss on asset disposals(d)
(13.2)(3.3)(9.9)4.2 1.0 3.2 
Foreign currency exchange loss(e)
2.4 1.4 1.0 12.5 3.6 8.9 
LIFO expense(f)
9.7 2.4 7.3 3.0 0.8 2.2 
Transaction and other related costs(h)
0.4 0.1 0.3 0.5 0.1 0.4 
Equity-based compensation16.2 3.7 12.5 18.4 4.2 14.2 
Restructuring, integration and business optimization expenses(i)
3.6 0.9 2.7 8.7 2.2 6.5 
Defined benefit plan pension cost(j)
3.0 0.7 2.3 0.4 0.1 0.3 
Gain on contract termination(k)
— — — (20.6)(5.2)(15.4)
Other(l)
2.5 0.5 2.0 6.2 1.6 4.6 
Adjusted Net Income, including non-cash GILTI tax and tax reform140.3 48.9 91.4 130.6 45.7 84.9 
Impact of non-cash GILTI tax(3)
— (9.4)9.4 — (14.5)14.5 
Impact of tax reform(4)
— (2.3)2.3 — 2.6 (2.6)
Adjusted Net Income$140.3 $37.2 $103.1 $130.6 $33.8 $96.8 

Years ended December 31,
20232022
Pre-taxTax expense (benefit)After-taxPre-taxTax expense (benefit)After-tax
(in millions)
Reconciliation of net income to Adjusted Net Income (1)(2)
Net income from continuing operations$82.0 $10.8 $71.2 $94.7 $24.9 $69.8 
Amortization of investment in affiliate step-up(b)
6.4 1.6 4.8 6.4 1.5 4.9 
Net loss on asset disposals(c)
4.1 1.0 3.1 3.6 0.9 2.7 
Foreign currency exchange (gain) loss(d)
(1.3)(0.3)(1.0)1.4 0.4 1.0 
LIFO expense (benefit)(e)
3.5 0.9 2.6 (0.2)(0.1)(0.1)
Transaction and other related costs(f)
3.0 0.8 2.2 7.0 1.1 5.9 
Equity-based compensation16.0 1.5 14.5 20.6 (0.1)20.7 
Restructuring, integration and business optimization expenses(g)
2.7 0.7 2.0 11.6 2.8 8.8 
Other(h)
0.8 0.2 0.6 (0.7)(0.2)(0.5)
Adjusted Net Income, including Impact valuation allowance release117.2 17.2 100.0 144.4 31.2 113.2 
Impact of valuation allowance release(3)
— 10.2 (10.2)— — — 
Adjusted Net Income$117.2 $27.4 $89.8 $144.4 $31.2 $113.2 
(1)We define adjusted net incomeincome as net income attributable to PQ Group HoldingsEcovyst Inc. adjusted for non-operating income or expense and the impact of certain non-cash or other items that are included in net income that we do not consider indicative of our ongoing operating performance. Adjusted net income is presented as a key performance indicator as we believe it will enhance a prospective investor’s understanding of our results of operations and financial
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condition. Adjusted net income may not be comparable with net income or adjusted net income as defined by other companies.
(2)ReferRefer to the Adjusted EBITDA notes above for more information with respect to each adjustment.
(3)Amount represents the impact to tax expense in net income before non-controlling interest and the related adjustments to net income associated with the GILTI provisions of the TCJA. We were required to record incremental tax provision impact with respect to GILTI even though we had historical NOL amounts to offset the GILTI taxable income inclusion. This NOL utilization precluded us from recognizing GILTI credits which would otherwise help offset the tax impacts of GILTI. No GILTI credits will be recognized with respect to GILTI until the cumulative NOL balance had been exhausted. Because the GILTI provision did not impact our cash taxes (given available U.S. NOLs), we do not view this item as a component of core operations.
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(4)Represents the transaction tax adjustment for the impact of the TCJA and the rate change in the Netherlands relatedstate tax credit valuation allowance release. Item is not expected to the Dutch Tax Plan 2019 recorded in net income.be recurring.
The adjustments to net income attributable to PQ Group HoldingsEcovyst Inc. are shown net of each applicable statutory tax rates.rates of 25.4% and 23.9% for the year ended December 31, 2023 and 2022, respectively, except for equity-based compensation. The tax effect on equity-based compensation is derived by removing the tax effect of any equity-based compensation expense disallowed as a result of its inclusion within IRC Sec. 162(m), and adding the tax effect of equity-based stock compensation shortfall recorded as a discrete item.
Results of Operations
Year Ended December 31, 2022 Compared to the Year Ended December 31, 2021
A discussion of our performance for the year ended December 31, 2022 compared to the year ended December 31, 2021 is set forth in Part II, Item 7 of our Form 10-K for the year ended December 31, 2022 under the caption “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”
Financial Condition, Liquidity and Capital Resources
Our primary sources of liquidity consist of cash flowflows from operations, existing cash balances as well as funds available under our asset based lending revolving credit facility.facility (“ABL Facility”). We expect that ongoing requirements for debt service and capital expenditures will be funded from these sources of funds. Our primary liquidity requirements include funding working capital requirements (primarily inventory and accounts receivable, net of accounts payable and other accrued liabilities), debt service requirements and capital expenditures. Our capital expenditures include both maintenance of business, which includesinclude spending on maintenance and health, safety and environmentalHSE initiatives as well as growth, which includes spending to drive organic sales growth and cost savings initiatives.
We believe that our existing cash, cash equivalents and cash flows from operations, combined with availability under our asset based lending revolving credit facility,ABL Facility, will be sufficient to meet our presently anticipated future cash needs for at least the next 12twelve months. We may also pursue strategic acquisition or divestiture opportunities, which may impact our future cash requirements. We may, from time to time, increase borrowings under our asset based lending revolving credit facilityABL Facility to meet our future cash needs. As of December 31, 2020,2023, we had cash and cash equivalents of $135.5$88.4 million and availability of $102.5$63.8 million under our asset based lending revolving credit facility,ABL Facility, after giving effect to $18.2$4.0 million of outstanding letters of credit, and no revolving credit facility borrowings, for a total available liquidity of $238.0$152.2 million. As of December 31, 2020,2023, we did not have any revolving credit facility borrowings and were in compliance with all covenants under our debt agreements.
Our ABL Facility has one financial covenant with two ratios to maintain. The first ratio compares the total ABL availability against a threshold: the greater of 10% of the line cap (which is defined as the lesser of our revolving loan commitments and the value of our assets) or $20.0 million. The greater of this threshold cannot be greater than the total availability of the ABL Facility. The second ratio compares the ABL Facility availability of the U.S. revolving credit facility against a $15.0 million threshold. As of December 31, 2023, we were in compliance with the financial covenant under the ABL Facility.
The 2021 Term Loan Facility and the ABL Facility contain various restrictive covenants. Each limits the ability of the Company and its restricted subsidiaries to incur certain indebtedness or liens, merge, consolidate or liquidate, dispose of certain property, make investments or declare or pay dividends, make optional payments, modify certain debt instruments, enter into certain transactions with affiliates, enter into certain sales and leasebacks, and certain other non-financial restrictive covenants. The ABL Facility also contains one financial covenant which applies when minimum availability under the ABL Facility exceeds a certain threshold. During such time, the Company is required to maintain a fixed-charge coverage ratio of at least 1.0 to 1.0. The Company was in compliance with all debt covenants under the 2021 Term Loan Facility and the ABL Facility as of December 31, 2023 and 2022, respectively.
Included in our cash and cash equivalents balance as of December 31, 20202023 was $33.4$10.7 million of cash and cash equivalents held in foreign jurisdictions. We repatriate cash held outside of the United States from certain foreign subsidiaries in order to meet domestic liquidity needs. Depending on domestic and foreign cash balances, we have certain flexibility to repatriate funds should the need arise. Should the need arise, we would repatriate the funds in order to meet domestic liquidity needs. In certain cases, the repatriationmost tax efficient manner from those subsidiaries. Repatriation of foreign cash under previous U.S. tax law hadis generally been subject to U.S. income taxes at the time of cash distribution. Due to the enactment of the TCJA in December 2017, our overseas earnings repatriation will generally no longer benot subject to U.S. federal income taxes at the time of cash
52


distribution. However, futureforeign earnings may still be taxed for foreign and state income tax purposes.purposes, as well as subject to certain foreign withholding tax obligations, when cash amounts are distributed back to the U.S.
Over the course of the next twelve months and beyond, we anticipate making significant cash payments for known contractual and other obligations, including:
Principal and interest on long-term debt
As of December 31, 2020,2023, our total indebtedness was $1,426.4$877.5 million, with up to $102.5$63.8 million of available borrowings under our asset based lending revolving credit facility.ABL. Our liquidity requirements are significant, primarily due to debt service requirements. As reported, our cash interest expense for the years ended December 31, 2020, 20192023, 2022 and 20182021 was approximately $90.3$42.1 million, $117.8$35.4 million and $110.8$59.0 million, respectively. Before any impact of hedges, a one percent change in assumed interest rates for our variable interest credit facilities would have an annual impact of approximately $11.3$8.8 million on interest expense. None of theThe principal balances on our debt arebalance due in the next twelve months.months is $9.0 million.
Interest payments due within the next twelve months are $54.2$70.7 million using the interest rate effective as of December 31, 20202023 on our variable interest credit facilities. Interest on long-term debt excludes amortization of deferred financing fees and original issue discount. The actual interest payments may differ materially based on actual amounts of long-term debt outstanding and actual interest rates in future periods.periods, as well as the hedging impact from our interest rate cap agreements.
Subject to approval by our board of directors, we may raise additional capital or borrowings from time to time or seek to refinance our existing debt. There can be no assurances that future capital or borrowings will be available to us, and the cost and availability of new capital or borrowings could be materially impacted by market conditions. Further, the decision to refinance our existing debt is based on a number of factors, including general market conditions and our ability to refinance on attractive terms at any given point in time. Any attempts to raise additional capital or borrowings or refinance our existing debt could cause us to incur significant charges. Such charges could have a material impact on our financial position, results of operations, or cash flows.
67Lease obligations

TableThe Company has operating and finance lease agreements for land, buildings, railcars, vehicles, manufacturing equipment and general office equipment, as well as a financing obligation in connection with a failed-sale-leaseback. We utilize an incremental borrowing rate over the relevant operating and finance lease terms, which is the rate of Contentsinterest that it would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. We utilize a fixed borrowing rate for the financing obligation.
Purchase commitments
We have entered into short and long-term purchase commitments for various key raw materials and energy requirements. The purchase obligations include agreements with various suppliers to purchase goods that are enforceable and legally binding, and that specify all significant terms, including fixed and minimum quantities to be purchased, fixed, minimum or variable provisions, and the approximate timing of the transaction. As of December 31, 2020, we had $22.02023, our total operating lease liabilities was $24.2 million, in purchase commitments, excluding agreements that are cancellable without penalty,with $10.8 million of which $13.7principal and interest payments made during the year. Operating lease payments due within the next twelve months is $9.5 million.
As of December 31, 2023, our total finance lease liabilities was $0.1 million as of December 31, 2023, with $0.1 million of principal and interest payments made during the year. Finance lease payments due withing the next twelve months is expected to be incurred in 2021.$0.1 million.
As of December 31, 2023, our total finance obligation was $7.9 million as of December 31, 2023, with $3.1 million of principal and interest payments made during the year. Finance obligation due withing the next twelve months is $3.2 million.

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Cash Flow
Years ended
December 31,
202020192018
(in millions)
Years ended
December 31,
Years ended
December 31,
2023202320222021
(in millions)(in millions)
Continuing OperationsContinuing Operations
Net cash provided by (used in)Net cash provided by (used in)
Net cash provided by (used in)
Net cash provided by (used in)
Operating activities
Operating activities
Operating activitiesOperating activities$205.3 $227.7 $213.2 
Investing activitiesInvesting activities562.3 (18.8)(98.7)
Financing activitiesFinancing activities(721.1)(214.9)(135.3)
Discontinued OperationsDiscontinued Operations
Net cash provided by (used in)Net cash provided by (used in)
Net cash provided by (used in)
Net cash provided by (used in)
Operating activities
Operating activities
Operating activitiesOperating activities18.1 40.0 35.5 
Investing activitiesInvesting activities(10.8)(16.5)(20.6)
Financing activitiesFinancing activities(1.6)(1.2)(1.9)
Effect of exchange rate changes on cash, cash equivalents and restricted cash11.1 (2.1)0.4 
Net change in cash, cash equivalents and restricted cash63.3 14.2 (7.4)
Cash, cash equivalents and restricted cash at beginning of period73.9 59.7 67.2 
Cash, cash equivalents and restricted cash at end of period$137.2 $73.9 $59.8 
Effect of exchange rate changes on cash and cash equivalents
Net change in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period

Years ended
December 31,
202020192018
(in millions)
Continuing Operations
Net (loss) income$(179.5)$65.8 $50.4 
Non-cash and non-operating activities(1)
385.2 160.2 175.5 
Changes in working capital9.2 7.0 (12.0)
Other operating activities(9.6)(5.3)(0.7)
Net cash provided by operating activities, continuing operations$205.3 $227.7 $213.2 

Years ended
December 31,
202320222021
(in millions)
Continuing Operations
Net income$71.2 $69.8 $1.8 
Non-cash and non-working capital related activities(1)
86.6 114.3 156.6 
Changes in working capital(20.8)(2.2)(18.1)
Other operating activities0.6 (1.5)(3.0)
Net cash provided by operating activities, continuing operations$137.6 $180.4 $137.3 
(1)Includes depreciation, amortization, changes related to purchase accounting fair value adjustments, amortization of deferred financing costs and original issue discount, goodwill impairment charges, debt extinguishment costs, foreign currency exchange gains and losses,(gain) loss, pension and postretirement healthcare benefit(benefit) expense, and funding, deferred income tax benefit,provision (benefit), net losses(gain) loss on asset disposals, stock compensation expense, equity in net income and dividends received from affiliated companies, and net interest income on swaps designated as net investment hedges.companies.
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Years ended
December 31,
202020192018
(in millions)
Years ended
December 31,
Years ended
December 31,
2023202320222021
(in millions)(in millions)
Continuing OperationsContinuing Operations
Working capital changes that provided (used) cash:Working capital changes that provided (used) cash:
Working capital changes that provided (used) cash:
Working capital changes that provided (used) cash:
Receivables
Receivables
ReceivablesReceivables$7.0 $11.4 $(4.2)
InventoriesInventories9.4 (10.0)(7.2)
Prepaids and other current assetsPrepaids and other current assets2.0 2.3 (7.0)
Accounts payableAccounts payable4.2 (0.6)(3.5)
Accrued liabilitiesAccrued liabilities(13.4)3.9 9.9 
$
$9.2 $7.0 $(12.0)
Years ended
December 31,
202320222021
(in millions)
Continuing Operations
Purchases of property, plant and equipment$(65.3)$(58.9)$(60.0)
Proceeds from business divestitures, net of cash— — 978.4 
Payments for business divestiture, net of cash— (3.7)— 
Business combinations, net of cash acquired— (0.5)(42.6)
Other, net— 0.1 (0.1)
Net cash (used in) provided by investing activities, continuing operations$(65.3)$(63.0)$875.7 
Years ended
December 31,
202320222021
(in millions)
Continuing Operations
Cash repayments on debt obligations$(9.0)$(9.0)$(542.9)
Dividends paid to stockholders— — (435.6)
Repurchases of common shares(78.7)(136.7)— 
Tax withholdings on equity award vesting(3.4)(0.3)— 
Repayment of financing obligation(2.8)(2.7)— 
Other financing activities0.4 0.6 15.4 
Net cash used in financing activities, continuing operations$(93.5)$(148.1)$(963.1)

Years ended
December 31,
202020192018
(in millions)
Continuing Operations
Purchases of property, plant and equipment$(97.1)$(111.1)$(111.8)
Investment in affiliated companies— — (5.0)
Proceeds from business divestiture, net of cash and indebtedness624.3 — — 
Proceeds from sale of assets9.4 17.6 12.4 
Proceeds from sale of product line18.0 27.7 — 
Proceeds from sale of investment1.8 — — 
Proceeds from settlement of swaps designated as net investment hedges— 38.1 — 
Net interest proceeds on swaps designated as net investment hedges5.0 8.5 4.9 
Other, net0.9 0.4 0.8 
Net cash provided by (used in) investing activities, continuing operations$562.3 $(18.8)$(98.7)

Years ended
December 31,
202020192018
(in millions)
Continuing Operations
Net revolver borrowings$— $— $(25.0)
Net cash repayments on debt obligations(470.3)(215.0)(107.5)
Dividends paid to stockholders(243.7)— — 
Other financing activities(7.1)0.1 (2.8)
Net cash used in financing activities, continuing operations$(721.1)$(214.9)$(135.3)

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The following discussions related to our cash flows are presented on a continuing operations basis, which excludes the cash flows from our former Performance Chemicals and Performance Materials businessbusinesses, which are accounted for as a discontinued operation.operations.
55


Year Ended December 31, 20202023 Compared to the Year Ended December 31, 20192022
Net cash provided by operating activities was $205.3$137.6 million for the year ended December 31, 2020,2023, compared to $227.7with $180.4 million provided for the year ended December 31, 2019.2022. Cash generated by net income and non-workingoperating activities, other than changes in working capital related activities was lower by $24.1 million during the year ended December 31, 2020 by $24.4 million2023, as compared to the prior year. Cash providedyear was primarily driven bylower earnings, lower dividends from affiliates, higher cash taxes and cash interest, and unfavorable change in working capital. The decrease in cash from working capital during the year ended December 31, 20202023 of $18.6 million was favorableunfavorable compared to the year ended December 31, 2019. Working capital for the year ended December 31, 2020 provided cash of $9.2 million, compared2022 primarily due to cash provided of $7.0 million for the year ended December 31, 2019.unfavorable changes in receivables, inventories, prepaids and other current assets and accrued liabilities, which were offset by favorable change in accounts payable.
The decreaseunfavorable change in cash generatedreceivables was driven by net incomethe timing of sales orders and non-working capital related activities of $24.4 million as compared to the prior year periodcollections. The unfavorable change in inventory was primarily due to a decreasethe timing of sales orders and inventory build. The unfavorable change in gross profit driven by lower sales volumesprepaid and higher transaction related costs.
The $2.2 million increase in cash from working capital as comparedother current assets primarily relates to the prior year was primarily due to favorable changes in inventorytiming of interest receivable and accounts payable, which were partially offset bynon-trade receivables from related parties. The unfavorable changeschange in accrued liabilities accounts receivable and prepaid andprimarily relates to changes in payments for other assets balances.
The favorable change in inventory balances is due to a reduction in inventory in 2020 compared to an inventory build in 2019. We increased inventory levels at the end of the 2019 period within our polyolefin catalyst product group to meet sales demandcompensation-related liabilities in the 2020current period. The favorable change in accounts payable is due to timing of payments. The unfavorable change in accrued liabilities was primarily due to the timing of interestvendor payments. The reduced cash flow contribution from accounts receivable was driven by the timing of collections on our receivable balances during the current year period versus prior year periods. The prior year period began with a higher receivable balances due to increased sales volumes at the end of December 31, 2018, of which those receivables were collected early in the 2019 period.
Net cash provided byused in investing activities was $562.3$65.3 million for the year ended December 31, 2020,2023, compared to net cash used of $18.8$63.0 million during the year ended December 31, 2019.2022. Cash used in investing activities primarily consisted of $97.1$65.3 million and $111.1$58.9 million to fund capital expenditures during the years ended December 31, 20202023 and 2019,2022, respectively. During the year ended December 31, 2020, 2022, we sold our Performance Materials business for net cash proceedsmade an additional payment of $624.3$3.7 million sold a product line which resulted in proceeds of $18.0 million, sold additional assets which generated proceeds of $9.4 million, received $5.0 million in interest proceeds related to our cross currency swaps and solddivestiture of our investment in a joint venture of $1.8 million. DuringPerformance Chemicals business representing the year ended December 31, 2019, we settled our cross currency swaps and received cash proceeds of $38.1 million, sold a product line which resulted in proceeds of $27.7 million, sold additional assets which generated proceeds of $17.6 million and received $8.5 million in interest proceeds relatedfinal adjustments to our cross currency swaps.the sale price.
Net cash used in financing activities was $721.1$93.5 million for the year ended December 31, 2020,2023, compared to net cashwith $148.1 million used of $214.9 million during the year ended December 31, 2019.2022. Net cash used in financing activities was primarily driven by $470.3 million and $215.0fewer repurchases of common stock of $58.0 million in net repayments of our debt and revolving credit facility made during the years ended December 31, 2020 and 2019, respectively. During the year ended2023 compared to December 31, 2020, we paid a dividend of $1.80 per common share, which resulted in a cash outflow of $243.7 million.2022.

Year Ended December 31, 20192022 Compared to the Year Ended December 31, 20182021
NetA discussion of our cash provided by operating activities was $227.7 millionflows for the year ended December 31, 2019, compared to $213.2 million provided for the year ended December 31, 2018. Cash generated by net income and non-working capital related activities was lower during the year ended December 31, 2019 by $4.5 million compared to the prior year. Cash used by working capital during the year ended December 31, 2019 was favorable2022 compared to the year ended December 31, 2018. Working capital2021 is set forth in Part II, Item 7 of our Form 10-K for the year ended December 31, 2019 provided cash2022 under the caption “Management’s Discussion and Analysis of $7.0 million, compared to cash usedFinancial Condition and Results of $12.0 million for the year ended December 31, 2018.
The decrease in cash generated by net income and non-working capital related activities of $4.5 million as compared to the prior year period was primarily due to a decrease in gross profit driven by lower customer volumes and higher labor costs.
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The $19.0 million increase in cash from working capital as compared to the prior year was primarily due to favorable changes in accounts receivable, prepaid and other current assets and accounts payable, which were partially offset by unfavorable changes in accrued liabilities and inventory balances.
The increase in cash flow related to accounts receivable was due the timing of collections on our receivable balances during the current year period. We had higher receivables at the end of the 2018 period, of which those receivables were collected early in the 2019 period. The favorable change in prepaid and other current assets was due to lower receivable balances with our joint ventures and other related parties as well as the receipt of insurance proceeds during the year ended December 31, 2019. The favorable change in accounts payable was due to decrease in capital spending. The unfavorable change in accrued liabilities was primarily due to the timing of wage and interest payments. The unfavorable change in inventory was due to higher inventory build to meet future sales commitments.
Net cash used in investing activities was $18.8 million for the year ended December 31, 2019, compared to net cash used of $98.7 million during the year ended December 31, 2018. Cash used in investing activities primarily consisted of $111.1 million and $111.8 million to fund capital expenditures during the years ended December 31, 2019 and 2018, respectively. During the year ended December 31, 2019, we settled our cross currency swaps and received proceeds of $38.1 million, sold a product line which resulted in proceeds of $27.7 million, sold additional assets which generated proceeds of $17.6 million and received $8.5 million in interest proceeds related to our cross currency swaps. During the year ended December 31, 2018, we sold assets which generated proceeds of $12.4 million and received $4.9 million in interest proceeds related to our cross currency swaps.
Net cash used in financing activities was $214.9 million for the year ended December 31, 2019, compared to net cash used of $135.3 million during the year ended December 31, 2018. Net cash used in financing activities was primarily driven by $215.0 million and $107.5 million in repayments of our term debt and revolving credit facility made during the years ended December 31, 2019 and 2018, respectively.Operations.”
Debt
December 31,
20202019
(in millions)
Senior Secured Term Loan Facility due February 2027$671.7 $947.5 
New Senior Secured Term Loan Facility due February 2027459.7 — 
6.75% Senior Secured Notes due 2022— 625.0 
5.75% Senior Unsecured Notes due 2025295.0 295.0 
December 31,December 31,
202320232022
(in millions)(in millions)
Senior Secured Term Loan Facility due June 2028
ABL FacilityABL Facility— — 
Total debt
Total debt
Total debtTotal debt1,426.4 1,867.5 
Original issue discountOriginal issue discount(15.6)(13.4)
Deferred financing costsDeferred financing costs(10.4)(10.8)
Total debt, net of original issue discount and deferred financing costsTotal debt, net of original issue discount and deferred financing costs1,400.4 1,843.3 
Less: current portionLess: current portion— — 
Total long-term debt, excluding current portionTotal long-term debt, excluding current portion$1,400.4 $1,843.3 
As of December 31, 20202023 our total debt was $1,426.4$877.5 million excluding the original issue discount of $15.6$6.2 million and deferred financing fees of $10.4$3.4 million for our senior secured credit facilities and notes.facilities. Our net debt was $1,290.9$789.1 million, including cash and cash equivalents of $135.5$88.4 million. Our total available liquidity as of December 31, 20202023 was $238.0$152.2 million, which represents our cash on hand of $135.5$88.4 million plus our excess availability under our asset based lending revolving credit facilityABL of $102.5$63.8 million, after giving effect to $18.2$4.0 million of outstanding letters of credit and no revolving credit facility borrowings. We may seek, subject to market conditions and other factors, opportunities to repurchase, refinance or otherwise reprice our debt.

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Senior Secured Credit FacilitiesABL Facility
On May 4, 2016, we entered into senior secured credit facilities (collectively, the “Senior Secured Credit Facilities”) that were comprised of a $1,200.0 million term loan facility consisting of a $900.0 million U.S. dollar-denominated tranche and a $300.0 million Euro-denominated (or €265.0 million) tranche (the “2016 Term Loan Facility”), and a $200.0 million asset-based revolving credit facility (the “ABL Facility”).
On February 8, 2018, we refinanced the 2016 Term Loan Facility with a new $1,267.0 million senior secured term loanABL facility, (the “Term Loan Facility”) by entering into the Third Amendment Agreement to the 2016 Term Loan Facility, which amended and restated the 2016 Term Loan Facility. Pursuant to the Third Amendment Agreement, the Term Loan Facility accrued interest at a floating rate of LIBOR (with a zero percent minimum LIBOR floor) plus 2.50% per annum and was scheduled to mature in February 2025.
In February 2020, we re-priced the $459.7 million Term Loan Facility to reduce the applicable interest rate and extend the maturity of the facility to February 2027. The terms of the facility were substantially consistent following the re-pricing, except that borrowings under the term loan will bear interest at a rate equal to a floating rate of LIBOR plus 2.25% per annum.
The ABL Facility providesprovided for up to $200.0 million in revolving credit borrowings consisting of up to $150.0 million in U.S. available borrowings, up to $10.0 million in Canadian available borrowings and up to $40.0 million of European available borrowings. Borrowings under the ABL Facility bear interest at a rate equal to the LIBOR rate or the base rate elected by us at the time of the borrowing plus a margin of between 1.50%-2.00% or 0.50%-1.00%, respectively, depending on availability under the ABL Facility. In addition, there is an annual commitment fee equal to 0.375%, with a step-down to 0.25% based on the average usage of the revolving credit borrowings available. As of December 31, 2020, there were no revolving credit borrowings under the ABL Facility. Revolving credit borrowings are payable at our option throughout the term of the ABL Facility with the balance due May 4, 2021. We were in compliance with all debt covenants as of December 31, 2020 and 2019, respectively. commitments.
On March 20, 2020, we amended our existingthe ABL facilityFacility to increase the aggregate amount of the revolving loan commitments available by $50.0 million to $250.0 million, consisting of up to $195.0 million in U.S. commitments, up to $15.0 million in Canadian commitments and up to $40.0 million in European commitments. The maturity of the facility has beenwas extended to March 20, 2025. In addition, there was an annual commitment fee equal to 0.375%, with a step-down to 0.25% based on average usage of the revolving credit borrowings available.
Following the amendment, the borrowings under the amended ABL Facility bearbore interest at a rate equal to the LIBOR rate or the base rate plus a margin of between 1.25% to 1.75% or 0.25% to 0.75%, respectively.
On June 9, 2021, we amended the ABL Facility a third time to decrease the aggregate amount of revolving loan commitments available to $100.0 million, consisting of $90.0 million in U.S. commitments and $10.0 million in European commitments and extended the maturity date to August 2, 2026.
On February 17, 2023, we amended the ABL Facility to replace LIBOR with a secured overnight financing rate (“SOFR”) as the benchmark interest rate with respect to U.S. dollar-denominated borrowings. Following this amendment, U.S. dollar-denominated borrowings under the ABL Facility bear interest at a rate equal to an adjusted SOFR rate or the base rate plus a margin of between 1.25% and 1.75% or 0.25% to 0.75%, respectively.
The Company hasAs of December 31, 2023, there were no revolving credit borrowings under the abilityABL Facility. Revolving credit borrowings are payable at our option throughout the term of the ABL Facility with the balance due August 2, 2026. We have the availability to request letters of credit under the ABL Facility. The CompanyWe had $18.2$4.0 million of letters of credit outstanding as of December 31, 2020,2023, which reduce available borrowings under the ABL Facility by such amounts.
6.75% Senior Secured Notes dueWe were in compliance with all debt covenants as of December 31, 2023 and 2022, - Redeemed in 2020respectively.
Concurrent with the Business Combination, we issued $625.0 million of 6.750% Senior Secured Notes due November 2022 (the “6.75% Senior Secured Notes”) in transactions exempt from or not subject to registration under the Securities Act pursuant to Rule 144A and Regulation S under the Securities Act of 1933. Interest on the 6.75% Senior Secured Notes was payable on May 15 and November 15 of each year, commencing November 15, 2016. No principal payments were required with respect to the 6.75% Senior Secured Notes prior to their final maturity. The 6.75% Senior Secured Notes were to mature on November 15, 2022.2021 Term Loan Facility
In July 2020,On June 9, 2021, we entered into an agreement for a new senior secured term loan facility. The proceeds were used to redeem the 6.75% Senior Secured Notes. Refer to the New Senior Secured Term Loan Facility section of this note for further discussion.
New Senior Secured Term Loan Facility due February 2027
In July 2020, we entered into an agreement for a new senior secured term loan facility (the “2021 Term Loan Facility”) in an aggregate principal amount of $650.0$900.0 million, with an original issue discount of 1.5%0.25% and interest at a floating rate of LIBOR (with a 1.0%0.50% minimum LIBOR floor) plus 3.0%2.75% per annum.annum (or, depending on the Borrower’s first lien net leverage ratio, 2.50%), with a maturity date of June 9, 2028. The proceeds were used to redeem our existing $625.0 million of 6.75% Senior Secured Notes due 2022 and pay the associated early redemption premiums. The new senior secured term loan facility2021 Term Loan Facility requires scheduled quarterly amortization payments, each equal to 0.25% of the original principal amount of the loans under the new senior secured term loan facility.
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5.75% Senior Unsecured Notes due 2025
On December 11, 2017, we issued $300.0 million aggregate principal amount of 5.75% Senior Unsecured Notes due 2025 (the “5.75% Senior Unsecured Notes”) in a private placement exempt2021 Term Loan Facility. The proceeds from the registration requirements of2021 Term Loan Facility were used to repay the Securities Act. The 5.75% Senior Unsecured Notes mature on December 15, 2025. Interest2020 Term Loan Facility in full and partially repay the 2018 Term Loan Facility.
On February 9, 2023, we amended the 2021 Term Loan Facility to replace LIBOR with SOFR as the benchmark interest rate.Following this amendment, the 2021 Term Loan Facility bears interest at an adjusted SOFR rate (with a 0.50% minimum floor) plus 2.75% per annum (or, depending on the 5.75% Senior Unsecured Notes is to be paid semi-annually on February 15 and August 15, commencing August 15, 2018, at an annual rate of 5.75% per year.first lien net leverage ratio, 2.50%).

Capital Expenditures
Maintenance capital expenditures include spending on maintenance of business, health, safety and environmental initiatives. Growth capital expenditures include spending to drive organic sales growth and cost savings initiatives. These capital expenditures represent our “book” capital expenditures for which the company has recorded, but not necessarily paid for the capital expenditures.
Years ended
December 31,
202020192018
(in millions)
Years ended
December 31,
Years ended
December 31,
2023202320222021
(in millions)(in millions)
Maintenance capital expendituresMaintenance capital expenditures$68.3 $81.7 $82.1 
Growth capital expendituresGrowth capital expenditures18.8 26.2 32.1 
Total capital expendituresTotal capital expenditures$87.1 $107.9 $114.2 
57


Capital expenditures remained at a level sufficient for required maintenance and certain expansion growth initiatives during these periods. Maintenance capital expenditures were higher in the year ended December 31, 2023 as compared to December 31, 2022 due to extended turnaround activities and additional expenditures incurred related to Winter Storm Elliott impacting our manufacturing facilities earlier in the year. Growth capital expenditures are slightly lower in the year ended December 31, 20202023 as compared to December 31, 20192022 due to delayedthe completion of several expansion capital to align with market conditions. Maintenance capital expenditures are lowerprojects in the year ended December 31, 2019 as compared to December 31, 2018 due to lower plant maintenance costs and the timing of turnaround projects.2022.
Pension Funding
We paid $9.1 million, $8.8 million and $6.8 millionan immaterial amount in cash contributions into our defined benefit pension plans and other postretirement plans during the years endedin December 31, 2020, 20192023, 2022, and 2018, respectively.2021. The net periodic pension and postretirement expense (benefit) was $0.9$0.1 million, $3.5$(1.0) million, and $2.3$(0.3) million for those same periods, respectively.
As of December 31, 20202023 and 2019,2022, our pension plans and other post-retirement benefit plans were underfunded by $44.0$5.4 million and $55.3$6.7 million, respectively. In addition, our supplemental retirement plan had a liability balance of $12.4 million and $11.7 million as of December 31, 2020 and 2019, respectively, which is funded by our general assets including assets held in a Rabbi trust, or restoration plan assets, of $3.7 million and $4.2 million as of December 31, 2020 and 2019, respectively.
Off-Balance Sheet Arrangements
We had $18.2 million and $19.9$4.0 million of outstanding letters of credit on our revolver facility as of December 31, 20202023 and 2019,2022, respectively.
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Critical Accounting Policies and Estimates
We prepare our consolidated financial statements in conformity with GAAP and our significant accounting policies are described in Note 2 to our consolidated financial statements. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect reported amounts and related disclosures. We base our estimates and judgments on historical experience and other relevant factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. We review these matters and reflect changes in estimates as appropriate. We have identified below the accounting policies, estimates and critical judgment areas that we believe could have a material effect on our financial position, liquidity or results of operations.
Revenue Recognition
In determining the appropriate amount of revenue to be recognized as we fulfill our obligations under our agreements, we perform the following steps: (i) identify the contract with the customer; (ii) determine whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measure the transaction price; (iv) allocate the transaction price to the performance obligations based on estimated selling prices; and (v) recognize revenue when (or as) we satisfy each performance obligation.
We identify a contract when an agreement with a customer creates legally enforceable rights and obligations, which occurs when a contract has been approved by both parties, the parties are committed to perform their respective obligations, each party’s rights and payment terms are clearly identified, commercial substance exists and it is probable that we will collect the consideration to which we are entitled.
Evidence of a contract with a customer may take the form of a master service agreement (“MSA”), a MSA in combination with an underlying purchase order, a combination of a pricing quote with an underlying purchase order or an individual purchase order received from a customer. Certain of our customers enter into MSAs that establish the terms, including prices, under which orders to purchase goods may be placed. In cases where the MSA contains a distinct order for goods or contains an enforceable minimum quantity to be purchased by the customer, we consider the MSA to be evidence of a contract with a customer as the MSA creates enforceable rights and obligations. In cases where the MSA does not contain a distinct order for goods, evidence of a contract with a customer is the purchase order issued under the MSA. Our customers may also negotiate orders via pricing quotes, which typically detail product pricing, delivery terms and payment information. When a customer procures goods under this method, we consider the combination of the pricing quote and the purchase order to create enforceable rights and obligations. Absent either a MSA or pricing quote, we consider an individual purchase order to create enforceable rights and obligations.

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We identify a performance obligation in a contract for each promised good that is separately identifiable from other promises in the contract and for which the customer can benefit from the good. The majority of our contracts have a single performance obligation, which is the promise to transfer individual goods to the customer. Certain of our contracts include multiple performance obligations under which the purchase price for each distinct performance obligation is defined in the contract. These distinct performance obligations may include stand-ready provisions, which are arrangements to provide a customer assurance that they will have access to output from our manufacturing facilities, or monthly reservations of capacity fees. We consider stand-ready provisions and reservation of capacity fees to be performance obligations satisfied over time. Revenues related to stand-ready provisions and reservation of capacity fees are recognized on a ratable basis throughout the contract term and billed to the customer on a monthly basis.
As described above, our MSAs with our customers may outline prices for individual products or contract provisions. MSAs in the our Performance Chemicals and Refining Services segmentsEcoservices segment may contain provisions whereby raw materials costs are passed-through to the customer per the terms of their contract. Our exposure to fluctuations in raw materials prices is limited, as the majority of pass-through contract provisions reset based on fluctuations in the underlying raw material price. MSAs in our Refining ServicesEcoservices segment also contain take-or-pay arrangements, whereby the customer would incur a penalty in the form of a shortfall volume fee. Currently there is no history in which customers fail to meet the contractual minimum. Revenue from product sales are recorded at the sales price, which includes estimates of variable consideration for which reserves are established and which result from discounts, returns or other allowances that are offered within contracts with our customers.
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We recognize revenues when performance obligations under the terms of a contract with our customer are satisfied, which generally occurs at a point in time by transferring control of a product to the customer. We determine the point in time when a customer obtains control of a product and we satisfy the performance obligation by considering factors including when we have a right to payment for the product, the customer has legal title to the product, we have transferred possession of the product, the customer has assumed the risks and rewards of ownership of the product and the customer has accepted the product. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods. We do not have any significant payment terms as payment is received at, or shortly after, the point of sale.
Goodwill and Intangible Assets
Assets and liabilities of acquired businesses are measured at their estimated fair values at the dates of acquisition. The excess of the purchase price over the estimated fair value of the net assets acquired, including identified intangibles, is recorded as goodwill. The determination and allocation of fair value to the assets acquired and liabilities assumed is based on various assumptions and valuation methodologies requiring considerable management judgment, including estimates based on historical information, current market data and future expectations.
Goodwill and intangible assets with indefinite lives are not amortized, but are tested for impairment annually or more frequently if events or circumstances exist that would more likely than not reduce the fair value of the reporting unit below its carrying amount.
Goodwill is tested for impairment at the reporting unit level. In performing tests for goodwill impairment, we are able to use our discretion to first perform an optional qualitative assessment about the likelihood of the carrying value of a reporting unit exceeding its fair value. The qualitative assessment need not be applied to all reporting units. If we determine that it is more likely than not that the fair value of a reporting unit is less than its carrying amount based on the qualitative assessment, we perform a quantitative goodwill impairment test to identify the potential goodwill impairment and measure the amount of the goodwill impairment loss, if any, to be recognized for that reporting unit. For the annual assessments in 20202023 and 2019,2022, we bypassed the option to perform the qualitative assessment and proceeded directly to performing the quantitative goodwill impairment test for each of our reporting units. The quantitative test identifies both the potential existence of impairment and the amount of impairment loss. In performing our annual impairment test on goodwill as of October 1, 2020, we determined that an impairment existed with respect to our Performance Chemicals segment. As a result, we recorded a non-cash goodwill impairment charge of $260.0 million.
In applying the quantitative test, the Company calculates and compares the reporting unit’s estimated fair value to its carrying value, including goodwill. If the fair value of a reporting unit exceeds its carrying value, goodwill is not impaired. If the carrying value of a reporting unit exceeds its implied fair value, an impairment chargeloss is recognized requiring recognition of a goodwill impairment charge for the differential up toamount by which the carrying value of goodwill.exceeds the reporting unit’s fair value. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit and the loss establishes a new basis in the goodwill. Subsequent reversal of an impairment loss is not permitted.
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For the purposes of the quantitative goodwill impairment test, we determine the fair value of our reporting units using a combination of a market approach and an income, or discounted cash flow, approach. Estimating the fair value of a reporting unit requires various assumptions including the use of projections of future cash flows and discount rates that reflect the risks associated with achieving those cash flows. The key assumptions used in estimating the fair value are operating margin growth rates, revenue growth rates, the weighted average cost of capital, the perpetual growth rate, and the estimated earnings market multiples of each reporting unit. The market value is estimated using publicly traded comparable company values by applying their most recent annual adjustedAdjusted EBITDA multiples to the reporting unit’s adjustedAdjusted EBITDA for the trailing twelve months. The income approach value is estimated using a discounted cash flow approach. The assumptions about future cash flows and growth rates are based on our assessment of a number of factors including the reporting unit’s recent performance against budget as well as management’s ability to execute planned future strategic initiatives. Discount rate assumptions are based on an assessment of the risk inherent in those future cash flows.
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For intangible assets other than goodwill, definite-lived intangible assets are amortized over their respective estimated useful lives. Intangible assets with indefinite lives are not amortized, but rather are tested for impairment at least annually or more frequently if events occur or circumstances change that would more likely than not reduce the fair value of the intangible asset below its carrying amount. Our indefinite-lived intangible assets include trade names and certain trademarks. Similar to the goodwill impairment test, we may first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test. If we choose to bypass the qualitative assessment, or if the qualitative assessment indicates that the indefinite-lived intangible asset is more likely than not impaired, a quantitative impairment test must be performed. Unlike the goodwill impairment test, theThe quantitative test for indefinite-lived intangible assets is a one-step test comparing the fair value of the asset to its carrying amount. If the fair value of the indefinite-lived intangible asset is less than the carrying amount, an impairment loss is recognized in an amount equal to the difference.
The unit of accounting used to test our indefinite-lived intangible assets for impairment is at the reporting unit level. The fair values of our indefinite-lived trade names and trademarks are determined for impairment testing purposes based on an income approach using a discounted cash flow valuation model under a relief from royalty methodology. Significant assumptions under the relief from royalty method include the royalty rate a market participant may assume, projected sales and the discount rate applied to the estimated cash flows.
For definite-lived intangible assets, we amortize technical know-how over periods that range from fourteen to twenty years, customer relationships over periods that range from seven to fifteen years, trademarks over a fifteen year period, contracts over periods that range from two to sixteen years, and permits over five years. We perform an impairment review of definite-lived intangible assets when facts and circumstances indicate that the carrying value of an asset may not be recoverable from its undiscounted future cash flows. The impairment test for definite-lived intangible assets is consistent with the test applied to property, plant and equipment as described in our policy.
Assessment of the potential impairment of goodwill and intangible assets is an integral part of our normal ongoing review of operations. Testing for potential impairment of these assets is significantly dependent on numerous assumptions and reflects management's best estimates at a particular point in time. Estimates based on these assumptions may differ significantly from actual results. Changes in factors and assumptions used in assessing potential impairments can have a significant impact on the existence and magnitude of impairments, as well as the time in which such impairments are recognized.
In addition, we continually review our diverse portfolio of assets to ensure they are achieving their greatest potential and are aligned with our growth strategy. Strategic decisions involving a particular group of assets may trigger an assessment of the recoverability of the related assets. Such an assessment could result in impairment losses.
For further information, see Note 15 Goodwill and Other Intangible Assets.14 to these consolidated financial statements.

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Income Taxes
We operate within multiple taxing jurisdictions and are subject to tax filing requirements and potential audits within these jurisdictions. Our operations and the global complexity of tax regulations require assessments of uncertainties and judgments in estimating taxes we will ultimately pay. The final taxes paid are dependent upon many factors, including negotiations with taxing authorities in various jurisdictions, outcomes of tax litigation and resolution of disputes arising from federal, state and international tax audits in the normal course of business. The resolution of these uncertainties may result in adjustments to our tax assets and tax liabilities. We use the asset and liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, using statutory tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the results of operations in the period that includes the enactment date. We evaluate our deferred tax assets each period to ensure that estimated future taxable income will be sufficient in character (e.g., capital gain versus ordinary income treatment), amount and timing, to result in their realizability. A valuation allowance is recorded to reduce the carrying amounts of deferred tax assets, unless it is more likely than not that those assets will be realized. Considerable judgments are required in establishing deferred tax valuation allowances. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences and carryforward deferred tax assets become deductible or utilized. We consider the scheduled reversal of taxable temporary differences, projected future taxable income and tax-planning strategies in making this assessment. As events and circumstances change, valuation allowances are adjusted within results from operations when applicable.
Generally, APB 23 of ASC Topic 740, Income Taxes (“ASC 740”), provides guidance with respect to establishing deferred income taxes on earnings from foreign subsidiaries, to the extent that these earnings are considered to be available for repatriation. Further, ASC 740-30 requires that deferred taxes be established with respect to the earnings of a foreign subsidiary, unless existing tax law provides a means by which the investment in a subsidiary can be recovered tax-free. We have determined that we are able repatriate the non-permanently reinvested earnings of our foreign subsidiaries in a tax-free manner. As such, we are able to assert for purposes of ASC 740-30 that no deferred income taxes are needed with respect to earnings from foreign subsidiaries.
We recognize net tax benefits under the recognition and measurement criteria of ASC 740, which prescribes requirements and other guidance for financial statement recognition and measurement of positions taken or expected to be taken on tax returns. We recognize a financial statement benefit for positions taken for tax return purposes when it will be more likely than not (i.e. greater than 50%) that the positions will be sustained upon tax examination, based solely on the technical merits of the tax positions. Otherwise, no tax benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. We recognize potential accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. Tax examinations are often complex as tax authorities may disagree with the treatment of items reported by us and may require several years to resolve. These accrued liabilities represent a provision for taxes that are reasonably expected to be incurred on the basis of available information but which are not certain.
On December 22, 2017, the TCJA was enacted into law. The TCJA provided for several significant tax law changes and modifications, including the reduction of the U.S. federal corporate income tax rate from 35% to 21%, the requirement for companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred, as well as the creation of new taxes on certain foreign-sourced earnings. At December 31, 2018 we had completed our accounting for the impacts of the enactment of the Act.
The 2020 U.S. federal impact to tax expense with respect to GILTI is $7.8 million. Based on FASB guidance, we are permitted to make an accounting policy election to either (1) treat the taxes incurred as a result of the GILTI provision as a current-period expense when incurred or (2) factor such amounts into our measurement of deferred taxes. We have elected to treat any expense incurred as a current-period expense.

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Stock-Based Compensation
We grant stock-based compensation awards in connection with our stock incentive plans. Under the terms of the incentive plans, we are authorized to issue equity awards to our employees, directors and affiliates. The grants have taken the form of restricted stock awards, restricted stock units, performance stock units and stock options. Restricted stock awards provide the recipient with shares of our stock subject to certain vesting requirements. Restricted stock units and performance stock units provide the recipient with the right to receive shares of our stock at a future date if certain vesting conditions are met. Stock option awards provide the recipient the ability to purchase shares of our stock at a given strike price upon the satisfaction of certain vesting requirements.
The vesting requirements associated with the awards include a mix of both service and/or performance conditions. Depending on the award and recipient, the service condition may reflect a cliff vesting provision (e.g., 100% vested upon four years of service) or a graded vesting provision (e.g., 33.3% vested each year over a period of three years). RestrictedPrior to the Company’s IPO, the Company issued restricted stock awards and stock options issued with performance conditions vestthat were based on the occurrence of a defined liquidity event upon which certain investment funds affiliated with CCMP receive proceeds exceeding certaindefined thresholds. Although achievement of the performance condition is subject to continued service with us, the terms of awards issued with performance conditions stipulate that the performance vesting
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condition can be attained for a period of six months following separation from service under certain circumstances, depending on the means of separation from the Company and subject to other factors such as individual separation agreements. The same performance vesting condition for our restricted stock awards also governs the achievement of the performance vesting condition for our stock options. The value of the restricted stock awards granted was based on the average of the high and low trading prices of our common stock on the NYSE on the preceding trading day, in accordance with our policy for valuing such awards.
In addition to restricted stock awards, we have granted restricted stock units and performance stock units as part of our equity incentive compensation program. Each restricted stock unit provides the recipient with the right to receive a share of common stock subject to graded vesting terms based on service, which generally requires one year of service for members of our board of directors and three years of service for employees. Performance stock units vest upon the achievement of Company-specific financial performance targets and the provision of service through the vesting date.
We recognize compensation expense related to our equity awards with service conditions on a straight-line basis over the stated vesting period for each award. Expense related to our equity awards with performance conditions is recognized in the period in which it becomes probable that the performance target will be achieved. No compensation expense has been recognized to-date on any of our restricted stock awards and stock options subject to vesting based on performance conditions, since a liquidity event triggering vesting of the awards has not occurred, nor is it considered probable.
The grant date fair value of restricted stock awards, restricted stock units and performance stock units is based on the value of our common stock as traded on the New York Stock Exchange. The grant date fair value of stock option awards is estimated using a Black-Scholes option pricing model. Determining the fair value of stock option awards at the grant date requires judgment, including estimates of the average risk-free interest rate, dividend yield, volatility and expected term. Since we have limited experience with respect to historical exercise and forfeiture rates or patterns, we have estimated certain assumptions using acceptable simplified methods and through benchmarking to our peer group of companies.
Recently Issued Accounting Standards
See Note 3 to our consolidated financial statements for a discussion of recently issued accounting standards and their effect on us.
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ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
Our major market risk exposure is potential losses arising from changing rates and prices regarding foreign currency exchange rate risk, interest rate risk commodity price risk and credit risk. The audit committee of our board of directorsCompany regularly reviews foreign exchange and interest rate and commodity hedging activity, and monitors compliance with our hedging policy. We do not use financial instruments for speculative purposes, and we limit our hedging activity to the underlying economic exposure.
Foreign Exchange Risk
Our financial results are subject to the impact of gains and losses on currency translations, which occur when the financial statements of foreign operations are translated into U.S. dollars. We operate a geographically diverse business with approximately 40%6% of our sales during the years ended December 31, 20202023 and 20192022, respectively, coming from our international operations in currencies other than the U.S. dollar. Because consolidated financial results are reported in U.S. dollars, sales or earnings generated in currencies other than the U.S. dollar can result in a significant increase or decrease in the amount of those sales and earnings when translated to U.S. dollars. The financial statements of our operations outside the United States, where the local currency is considered to be the functional currency, are translated into U.S. dollars using the exchange rate in effect at each balance sheet date for assets and liabilities and the average exchange rate for each period for sales, expenses, gains, losses and cash flows. The exchange rates between these currencies and the U.S. dollar in recent years have fluctuated significantly and may continue to do so in the future. The foreign currenciescurrency to which we have the most significant exchange rate exposure includeis the euro, British pound, Canadian dollar, Brazilian real and the Mexican peso.pound. Sales in these top five currenciesthis currency represented approximately 34%5% of our sales during the year ended December 31, 2020.2023. A 10% change in these currenciesthe average British pound to U.S. dollar exchange rate during the year ended December 31, 2023 would have impacted sales by approximately $37.5$3.3 million over the same period, or 3%0.5% of our total sales, assuming product pricing remained constant. The effect of translating foreign subsidiaries’ balance sheets into U.S. dollars is included in other comprehensive income. The impact of gains and losses on transactions denominated in currencies other than the
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functional currency of the relevant operations are included in other non-operating expense.expense (income), net in the consolidated statements of income. Income and expense items are translated at average exchange rates during the year. Net foreign currency exchange gains and losses included in other expense (income), net was a $4.2$0.6 million gainincome for the year ended December 31, 2020.2023. The foreign currency gainloss realized in the year ended December 31, 20202023 was primarily driven by the Euro-denominated term loan and the non-permanent intercompany debt denominated in local currency and translated to U.S. dollars, and was principally non-cash in nature.
On February 8, 2018, we refinanced our existing senior secured term loan facility whereby the Term Loan Facility was used to repay the then-existing U.S. dollar denominated and Euro denominated Term Loan Facilities, thus reducing our exposure to fluctuations in the euro. Concurrent with the term loan refinancing, we entered into multiple cross currency swap arrangements to hedge foreign currency risk. The swaps are intended to enable us to effectively hedge our exposure on the net investments of certain of our Euro denominated subsidiaries.
As described in Note 3 to the consolidated financial statements included in this Form 10-K, the Financial Accounting Standards Board (“FASB”) issued guidance in August 2017 with the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements. As a result of our early adoption of the FASB guidance, and because the swap agreements are designated as net investment hedges, changes in the fair value of the cross-currency swap agreements will be recognized as a component of “Foreign currency translation, net of tax” within “Other comprehensive income (loss), net of tax” in the consolidated statement of comprehensive income. In this regard, a favorable foreign currency change in the designated investment value of our foreign subsidiaries that use the Euro as their functional currency generally will be offset by an unfavorable foreign currency change in the cross-currency swap agreements, and vice versa. At December 31, 2020, a 10% fluctuation in the U.S. dollar-to-Euro currency exchange rate would have an approximately $34.4 million impact on the fair value of the notional amount of the cross-currency swap agreements and an offsetting $34.4 million impact on the designated net investment value of the foreign subsidiaries. In addition, in the event of a significant decline in the U.S. dollar-to-Euro exchange rate, our payment obligations to the counterparties could have a material adverse effect on our cash flows. In this regard, if, at the expiration or earlier termination of the swap agreements, the U.S. dollar-to-Euro currency exchange rate has declined by 10% from the rate in effect at December 31, 2020, we would be required to pay approximately $34.4 million to the counterparties. The swap agreements entail risk that the counterparties will not fulfill their obligations under the agreements. However, we believe the risk is reduced because we have entered into separate agreements with three different counterparties, all of whom are large, well-established financial institutions.
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Interest Rate Risk
We are exposed to fluctuations in interest rates on our Senior Secured Credit Facilities. Changes in interest rates will not affect the market value of such debt but will affect the amount of our interest payments over the term of the loans. Likewise, an increase in interest rates could have a material impact on our cash flow. As of December 31, 2020,2023, a 100 basis point increase in assumed interest rates for our variable interest credit facilities, before impact of any hedges, would have an annual impact of approximately $11.3$8.8 million on interest expense.
We hedge the interest rate fluctuations on debt obligations through interest rate cap agreements. We record the fair value of these hedges as assets or liabilities and the related unrealized gains or losses are deferred in stockholders’ equity as a component of other comprehensive income (loss), net of tax. The interest rate caps had a fair value net asset of $3.7$16.5 million and $3.2$32.3 million at December 31, 20202023 and 2019,2022, respectively. Fair value is determined based on estimated amounts that would be received or paid to terminate the contracts at the reporting date based on quoted market prices.
In July 2016, we entered intoFor more information about our interest rate cap agreements, paying a premium of $1.6 millionrefer to mitigate interest rate volatility from July 2016 through July 2020 by employing varying cap rates ranging from 1.50% to 3.00% on $1.0 billion of notional variable debt. In November 2018, the Company entered into additional interest rate cap agreements to mitigate interest rate volatility from July 2020 through July 2022, with a cap rate of 3.50% on $500.0 million of notional variable-rate debt and a $0.5 million premium annuitized during the effective period.
In February 2020, we restructured our $500.0 million notional interest rate cap agreements from July 31, 2020 through July 31, 2022 to lower the interest cap rate to 2.50% with a $0.1 million premium annuitized during the effective period. In March 2020, we further restructured our $500.0 million notional interest rate cap agreements from July 31, 2020 through July 31, 2022 to lower the interest rate cap to 0.84% with a $0.9 million premium annuitized during the effective period. Including premiums on the original November 2018 agreement and the February and March 2020 restructurings, the total cumulative annuitized premium of $4.4 million will be paid through July 31, 2022 on our interest rate cap agreements.
In July 2020, we entered into additional interest rate cap agreements to mitigate interest rate volatility from August 2020 to August 2023, with a cap rate of 1.00% on $400.0 million of notional variable-rate debt.
Commodity Risk
We purchase significant amounts of natural gas to supply the energy required in our production processes for our products in eachNote 18 — Financial Instrument of our segments. Since we are a producer of inorganic chemicals, natural gas provides an energy source for us but is not a direct feedstock for our products. Therefore, exposure to the volatilityconsolidated financials statements included in energy prices is less than that of producers of organic petrochemicals. We purchase approximately 8.8 million MMBtu’s of natural gas in a given year. Thus, a $1 increase in the cost of natural gas would impact our cost of goods sold by approximately $8.8 million absent hedging. Our purchase agreements with our customers typically provide for the pass through of natural gas price increases; however, there is no guarantee that we will continue to be able to pass through future price increases without loss of existing customers. We also make forward purchases of natural gas related to our production at certain subsidiary locations.Part II, Item 8 — Financial Statements and Supplementary Data.
Credit Risk
We are exposed to credit risk on financial instruments to the extent our counterparty fails to perform certain duties as required under the provisions of an agreement. We only transact with counterparties having an appropriate credit rating for the risk involved. Credit exposure is managed through credit approval and monitoring procedures.
Concentration of credit risk can result primarily from trade receivables, for example, with certain customers operating in the same industry or customer groups located in the same geographic region. Credit risk related to these types of receivables is managed through credit approval and monitoring procedures. InFor the year ended December 31, 2020,2023, we wrote off a nominal amount of bad debt on total sales of $1,107.4$691.1 million.
ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.
The consolidated financial statements, supplementary information and financial statement schedules of the Company are set forth beginning on page F-1 of this report.
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ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.
None.
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ITEM 9A.    CONTROLS AND PROCEDURES.
Evaluation of Disclosure Controls and Procedures
Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2020.2023. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at a reasonable assurance level.
Management’s Annual Report on Internal Control over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act as a process, designed by, or under the supervision of the Company’s principal executive and principal financial officers and effected by the Company’s board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Internal control over financial reporting includes maintaining records that in reasonable detail accurately and fairly reflect our transactions and dispositions of assets; providing reasonable assurance that transactions are recorded as necessary for preparation of our financial statements; providing reasonable assurance that receipts and expenditures are made only in accordance with management and board authorizations; and providing reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on our financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2020.2023. In making this assessment, management used the criteria for effective internal control over financial reporting described in the “Internal Control-Integrated Framework” (2013) set forth by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). Based on the assessment, management concluded that, as of December 31, 2020,2023, our internal control over financial reporting was effective based on those criteria.
The effectiveness of our internal control over financial reporting as of December 31, 20202023 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included in Item 8.

Changes in Internal Control Over Financial Reporting
No changes in our internal control over financial reporting occurred during the quarter ended December 31, 20202023 that materially affected, or which are reasonably likely to materially affect, our internal control over financial reporting.
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ITEM 9B.    OTHER INFORMATION.
None.Trading Arrangements
During the year ended December 31, 2023, none of the Company’s directors or executive officers adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each item is defined in Item 408(a) of Regulation S-K.

ITEM 9C.    DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS.
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PART III
ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.
The information required by this Item 10 will be included in our 20212024 Proxy Statement, which we intend to file with the SEC within 120 days of our December 31, 20202023 fiscal year end, and is incorporated herein by reference.
ITEM 11.    EXECUTIVE COMPENSATION.
The information required by this Item 11 will be included in our 20212024 Proxy Statement, which we intend to file with the SEC within 120 days of our December 31, 20202023 fiscal year end, and is incorporated herein by reference.
ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.
The information required by this Item 12 will be included in our 20212024 Proxy Statement, which we intend to file with the SEC within 120 days of our December 31, 20202023 fiscal year end, and is incorporated herein by reference.
ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.
The information required by this Item 13 will be included in our 20212024 Proxy Statement, which we intend to file with the SEC within 120 days of our December 31, 20202023 fiscal year end, and is incorporated herein by reference.
ITEM 14.    PRINCIPAL ACCOUNTINGACCOUNTANT FEES AND SERVICES.
The information required by this Item 14 will be included in our 20212024 Proxy Statement, which we intend to file with the SEC within 120 days of our December 31, 20202023 fiscal year end, and is incorporated herein by reference.
8365

PART IV


ITEM 15.    EXHIBITS,EXHIBIT AND FINANCIAL STATEMENT SCHEDULES.
(a)    The following documents are filed as part of this report:
(1) and (2) The response to this portion of Item 15 is submitted as a separate section of this report beginning on page F-1. All other schedules have been omitted as inapplicable or are not required, or because the required information is included in the consolidated financial statements or accompanying notes. (3) The exhibits filed as part of this report are listed in the accompanying index.
Incorporated by Reference
Incorporated by ReferenceIncorporated by Reference
Exhibit
No.
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
2.12.18-K001-382212.110/16/20202.18-K001-382212.110/16/2020
2.22.28-K001-382212.103/04/20212.28-K001-382212.103/04/2021
2.32.38-K001-382212.16/30/2021
2.42.48-K001-382212.17/15/2021
3.13.110-Q001-382213.111/14/20173.110-Q001-382213.111/14/2017
3.23.2S-1/A333-2186503.29/1/20173.28-K001-382213.18/3/2021
3.33.310-Q001-382213.311/9/2021
3.43.48-K001-382213.28/3/2021
4.14.1S-1333-2186504.26/9/20174.1S-1333-2186504.26/9/2017
4.24.28-K001-382214.112/13/20174.28-K001-382214.112/13/2017
4.34.310-K001-382214.312/31/20194.310-K001-382214.33/1/2022
10.110.1S-1333-21865010.16/9/201710.1S-1/A333-21865010.108/14/2017
10.18-K001-3822110.17/28/2020
10.210.2S-1333-21865010.26/9/201710.2S-1/A333-21865010.118/14/2017
10.310.3S-1/A333-21865010.128/14/2017
10.410.4S-1/A333-21865010.138/14/2017
10.510.5S-1/A333-21865010.59/1/2017
8466

Table of Contents
Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
10.3S-1/A333-21865010.198/14/2017
10.48-K001-3822110.12/9/2018
10.58-K001-3822110.12/13/2020
10.6S-1333-21865010.36/9/2017
10.7S-1/A333-21865010.108/14/2017
10.8S-1/A333-21865010.118/14/2017
10.9S-1/A333-21865010.128/14/2017
10.10S-1/A333-21865010.138/14/2017
10.11S-1333-21865010.46/9/2017
Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
10.6*S-8333-2621804.11/14/2022
10.7*10-K001-3822110.73/1/2022
10.8*10-K001-3822110.83/1/2022
10.9*10-K001-3822110.93/1/2022
10.10*10-K001-3822110.13/1/2022
10.11*10-K001-3822110.113/1/2022
10.12*S-1333-21865010.66/9/2017
10.13*S-1333-21865010.76/9/2017
10.14*S-1333-21865010.86/9/2017
10.15*S-1/A333-21865010.99/1/2017
10.16*10-K001-3822110.372/27/2020
10.178-K001-3822110.16/11/2021
10.188-K001-3822110.26/11/2021
10.19*10-Q001-3822110.38/9/2021
10.20*10-Q001-3822110.48/9/2021
8567

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Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
10.12S-1/A333-21865010.59/1/2017
10.13*S-1/A333-21865010.149/19/2017
10.14*S-1/A333-21865010.159/1/2017
10.15*S-1/A333-21865010.169/1/2017
10.16*S-1/A333-21865010.179/1/2017
10.17*10-Q001-3822110.15/10/2019
10.18*S-1333-21865010.66/9/2017
10.19*S-1333-21865010.76/9/2017
10.20*S-1333-21865010.86/9/2017
10.21*S-1/A333-21865010.99/1/2017
10.22*8-K001-3822110.28/9/2018
10.23*S-1/A333-21865010.189/19/2017
10.24*8-K001-3822110.18/9/2018
10.25*8-K001-3822110.112/26/2018
10.26*S-1/A333-21865010.199/19/2017
10.27*S-1/A333-21865010.209/19/2017
10.28*S-1/A333-21865010.219/19/2017
10.29*S-1/A333-21865010.229/19/2017
10.30*10-Q001-3822110.25/10/2019
10.31*10-Q001-3822110.35/10/2019
10.32*8-K001-3822110.111/21/2019
10.33*8-K001-3822110.112/03/2019
Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
10.21*10-K001-3822110.383/1/2022
10.22 *8-K001-3822110.112/16/2022
10.23*8-K001-3822110.212/16/2022
10.24*8-K001-3822110.312/16/2022
10.2510-K001-3822110.272/28/2023
10.2610-K001-3822110.282/28/2023
10.27*10-K001-3822110.32/28/2023
10.28*10-K001-3822110.312/28/2023
21.1X
23.1X
23.2X
31.1X
31.2X
32.1X
32.2X
97.1X
8668

Table of Contents
Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
10.34*8-K001-3822110.212/03/2019
10.35*10-K001-3822110.352/27/2020
10.36*10-K001-3822110.362/27/2020
10.37*10-K001-3822110.372/27/2020
10.38*8-K001-3822110.112/18/2020
10.39*8-K001-3822110.105/05/2020
10.40*8-K001-3822110.105/11/2020
10.41*10-Q001-3822110.205/11/2020
21.1X
23.1X
23.2X
31.1X
31.2X
32.1X
32.2X
87

Table of Contents
Incorporated by Reference
Exhibit
No.
Exhibit
Description
Filed
Herewith
FormFile
No.
ExhibitFiling
Date
101The following financial statements from the Annual Report on Form 10-K of PQ Group HoldingsEcovyst Inc. for the year ended December 31, 2020,2023, formatted in Inline XBRL: (i) Consolidated Statements of Income, (ii) Consolidated Statements of Comprehensive Income, (iii) Consolidated Balance Sheets, (iv) Consolidated Statements of Stockholders’ Equity, (v) Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements, tagged as blocks of text and including detailed tagsX
104The cover page from the Annual Report on Form 10-K of PQ Group HoldingsEcovyst Inc. for the year ended December 31, 2020,2023, formatted in Inline XBRLX
* Management contract or compensatory plan
ITEM 16.    FORM 10-K SUMMARY.
None.
8869

Table of Contents
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

PQ GROUP HOLDINGSECOVYST INC.
Date:March 17, 2021February 29, 2024By:/s/ MICHAEL CREWSFEEHAN
Michael CrewsFeehan
Executive Vice President and Chief Financial Officer
(Duly Authorized Officer and Principal Financial and Accounting Officer)

8970

Table of Contents
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
SignatureTitleDate
/s/ BELGACEM CHARIAGKURT J. BITTINGChairman of the Board, President and Chief Executive Officer and DirectorMarch 17, 2021February 29, 2024
Belgacem ChariagKurt J. Bitting(Principal Executive Officer)
/s/ MICHAEL CREWSFEEHANExecutive Vice President and Chief Financial OfficerMarch 17, 2021February 29, 2024
Michael CrewsFeehan(Principal Financial and Accounting Officer)
/s/ GREG BRENNEMANKEVIN M. FOGARTYDirectorChairperson of the BoardMarch 17, 2021February 29, 2024
Greg BrennemanKevin M. Fogarty
/s/ TIMOTHY WALSHDAVID A. BRADLEYDirectorMarch 17, 2021February 29, 2024
Timothy WalshDavid A. Bradley
/s/ MARK McFADDENBRYAN K. BROWNDirectorMarch 17, 2021February 29, 2024
Mark McFaddenBryan K. Brown
/s/ CHRISTOPHER BEHRENSANNA CATALANODirectorMarch 17, 2021February 29, 2024
Christopher BehrensAnna Catalano
/s/ ROBERT COXONDirectorMarch 17, 2021February 29, 2024
Robert Coxon
/s/ ANDREW CURRIEDirectorMarch 17, 2021
Andrew Currie
/s/ JONNY GINNSDirectorMarch 17, 2021
Jonny Ginns
/s/ KYLE VANNDirectorMarch 17, 2021February 29, 2024
Kyle Vann
/s/ MARTIN S. CRAIGHEADDirectorMarch 17, 2021
Martin S. Craighead
/s/ SUSAN F. WARDDirectorMarch 17, 2021February 29, 2024
Susan F. Ward


9071

Table of Contents

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
Audited Consolidated Financial Statements
F-2
F-5
F-6
F-7
F-8
F-9
F-11
ZEOLYST INTERNATIONAL
Audited Financial Statements
F-87
F-77

F-1

Table of Contents

Report of Independent Registered Public Accounting Firm
To the Board of Directors and Stockholders of PQ Group HoldingsEcovyst Inc.
Opinions on the Financial Statements and Internal Control over Financial Reporting
We have audited the accompanying consolidated balance sheets of PQ Group HoldingsEcovyst Inc. and its subsidiaries (the “Company”) as of December 31, 20202023 and 2019,2022, and the related consolidated statements of income, of comprehensive income (loss), of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2020,2023, including the related notes and schedule of condensedI – parent company financial information as of December 31, 20202023 and 20192022 and for each of the three years in the period ended December 31, 2020 listed in2023 appearing on the accompanying index (collectively referred to as the “consolidated financial statements”). We also have audited the Company’s internal control over financial reporting as of December 31, 2020,2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).
In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 20202023 and 2019,2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 20202023 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020,2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.
Basis for Opinions
The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Annual Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.
Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

F-2

Table of Contents
Definition and Limitations of Internal Control over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Critical Audit MattersMatter
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Goodwill Impairment Assessment - Performance Chemicals— Advanced Materials & Catalysts Reporting Unit
As described in Notes 2 and 1514 to the consolidated financial statements, goodwill associated with the Company’s consolidated goodwill balanceAdvanced Materials & Catalysts reporting unit was $717.7$77.9 million as of December 31, 2020, and the goodwill associated with the Performance Chemicals reporting unit was $326.2 million.2023. Management is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. Management performs its annual goodwill impairment test as of October 1. Goodwill is tested for impairment at the reporting unit level. If the carrying value of a reporting unit exceeds its implied fair value, an impairment charge is recognized. Management applied the market approach to estimatedetermined the fair value of the Performance Chemicalsits reporting unit. The Company recordedunits using a goodwill impairment charge of $260 million in the fourth quarter of 2020 related to the Performance Chemicals reporting unit.split between a market approach and an income, or discounted cash flow, approach. In applying the market approach, management estimates the reporting unit market approach fair value using publicly traded comparable company values and applies the selected market multiples to each reporting unit’s trailing twelve months adjusted EBITDA. Management estimates reporting unit income-based fair value using the discounted cash flow approach, which requires use of significant assumptions including revenue growth rates and discount rate.
The principal considerations for our determination that performing procedures relating to the goodwill impairment assessment of the Performance ChemicalsAdvanced Materials & Catalysts reporting unit is a critical audit matter are (i) the significant judgment by management when determining the fair value estimate of the Advanced Materials & Catalysts reporting unit; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating themanagement’s significant assumptionassumptions related to market multiples;multiples, revenue growth rates, and discount rate; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

F-3

Table of Contents
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s goodwill impairment assessment, including controls over the valuation of the Performance ChemicalsAdvanced Materials & Catalysts reporting unit. These procedures also included, among others, (i) testing management’s process for determining the fair value estimate of the Performance Chemicals reporting unit; (ii) evaluating the appropriateness of the market approach method;and income approaches; (iii) evaluating the reasonableness of the significant assumptionassumptions used by management related to market multiples;multiples, revenue growth rates, and discount rate; and (iv) testing the completeness and accuracy of the underlying data used in the estimate.market and income approaches. Evaluating management’s assumptionsignificant assumptions related to market multiplesrevenue growth rates involved evaluating whether the assumption was reasonable considering (i) the current and past performance of the Advanced Materials & Catalysts reporting unit; (ii) consistency with external market and industry data,data; and (iii) whether thisthe assumption was consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating (i) the appropriateness of the market approach methodand income approaches and (ii) the reasonableness of the market multiples and discount rate significant assumption related to market multiples.assumptions.


/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
March 17, 2021February 29, 2024

We have served as the Company’s auditor since 2015.
F-4

Table of Contents
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(in thousands, except share and per share amounts)

Years ended
December 31,
202020192018
Sales$1,107,363 $1,199,914 $1,228,926 
Cost of goods sold834,007 901,512 925,534 
Gross profit273,356 298,402 303,392 
Selling, general and administrative expenses125,294 129,516 131,402 
Goodwill impairment charge260,000 
Other operating expense, net50,986 21,378 16,427 
Operating (loss) income(162,924)147,508 155,563 
Equity in net income from affiliated companies(21,237)(46,022)(37,569)
Interest expense, net66,979 87,072 90,758 
Debt extinguishment costs25,028 3,400 7,751 
Other (income) expense, net(6,109)(2,372)10,603 
(Loss) income from continuing operations before income taxes and noncontrolling interest(227,585)105,430 84,020 
(Benefit) provision for income taxes(48,122)39,677 33,641 
Net (loss) income from continuing operations(179,463)65,753 50,379 
Net (loss) income from discontinued operations, net of tax(102,241)14,557 9,242 
Net (loss) income(281,704)80,310 59,621 
Less: Net (loss) income attributable to the noncontrolling interest - continuing operations(3,198)617 1,108 
Less: Net income (loss) attributable to the noncontrolling interest - discontinued operations265 154 213 
Net (loss) income attributable to PQ Group Holdings Inc.$(278,771)$79,539 $58,300 
(Loss) income from continuing operations$(176,265)$65,136 $49,271 
(Loss) income from discontinued operations(102,506)14,403 9,029 
Net (loss) income attributable to PQ Group Holdings Inc.$(278,771)$79,539 $58,300 
Net (loss) income per share:
Basic (loss) income per share - continuing operations$(1.30)$0.48 $0.37 
Diluted (loss) income per share - continuing operations$(1.30)$0.48 $0.37 
Basic (loss) income per share - discontinued operations$(0.76)$0.11 $0.07 
Diluted (loss) income per share - discontinued operations$(0.76)$0.11 $0.07 
Basic (loss) income per share$(2.06)$0.59 $0.44 
Diluted (loss) income per share$(2.06)$0.59 $0.43 
Weighted average shares outstanding:
Basic135,528,977 134,389,667 133,380,567 
Diluted135,528,977 135,548,694 134,684,931 
Years ended
December 31,
202320222021
Sales$691,118 $820,159 $611,201 
Cost of goods sold493,153 595,529 434,540 
Gross profit197,965 224,630 176,661 
Selling, general and administrative expenses79,215 85,334 97,781 
Other operating expense, net22,100 34,911 24,273 
Operating income96,650 104,385 54,607 
Equity in net (income) from affiliated companies(30,624)(27,725)(27,737)
Interest expense, net44,730 37,217 36,990 
Debt extinguishment costs— — 26,902 
Other expense, net605 158 4,511 
Income before income taxes81,939 94,735 13,941 
Provision for income taxes10,785 24,940 12,147 
Net income from continuing operations71,154 69,795 1,794 
Net income (loss) from discontinued operations, net of tax— 3,902 (141,410)
Net income (loss)71,154 73,697 (139,616)
Less: Net income attributable to the noncontrolling interest - discontinued operations— — 333 
Net income (loss) attributable to Ecovyst Inc.$71,154 $73,697 $(139,949)
Income from continuing operations attributable to Ecovyst Inc.$71,154 $69,795 $1,794 
Income (loss) from discontinued operations attributable to Ecovyst Inc.— 3,902 (141,743)
Net income (loss) attributable to Ecovyst Inc.$71,154 $73,697 $(139,949)
Net income (loss) per share:
Basic income per share—continuing operations$0.60 $0.52 $0.01 
Diluted income per share—continuing operations$0.60 $0.52 $0.01 
Basic income (loss) per share—discontinued operations$— $0.03 $(1.04)
Diluted income (loss) per share—discontinued operations$— $0.03 $(1.03)
Basic income (loss) per share$0.60 $0.55 $(1.03)
Diluted income (loss) per share$0.60 $0.55 $(1.02)
Weighted average shares outstanding:
Basic118,367,214 133,601,322 136,167,384 
Diluted119,487,709 135,088,172 137,708,931 
See accompanying notes to consolidated financial statements.

F-5

Table of Contents
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(in thousands)

Years ended
December 31,
202020192018
Net (loss) income$(281,704)$80,310 $59,621 
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits1,938 2,430 (7,958)
Net (loss) gain from hedging activities166 (2,665)(330)
Foreign currency translation(17,519)22,889 (35,056)
Total other comprehensive income (loss)(15,415)22,654 (43,344)
Comprehensive (loss) income(297,119)102,964 16,277 
Less: Comprehensive (loss) income attributable to noncontrolling interests(3,856)1,543 1,392 
Comprehensive (loss) income attributable to PQ Group Holdings Inc.$(293,263)$101,421 $14,885 
Years ended
December 31,
202320222021
Net income (loss)$71,154 $73,697 $(139,616)
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits1,120 (2,676)9,530 
Net gain (loss) from hedging activities(12,126)24,382 2,914 
Foreign currency translation4,056 (9,922)(2,248)
Total other comprehensive income (loss)(6,950)11,784 10,196 
Comprehensive income (loss)64,204 85,481 (129,420)
Less: Comprehensive income attributable to noncontrolling interests— — 333 
Comprehensive income (loss) attributable to Ecovyst Inc.$64,204 $85,481 $(129,753)
See accompanying notes to consolidated financial statements.

F-6

Table of Contents
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share amounts)
December 31,
2020
December 31,
2019
ASSETS
Cash and cash equivalents$135,531 $53,861 
Accounts receivables, net132,619 140,044 
Inventories, net127,436 137,622 
Prepaid and other current assets32,554 31,591 
Current assets held for sale206,369 
Total current assets428,140 569,487 
Investments in affiliated companies458,452 472,814 
Property, plant and equipment, net983,235 1,011,156 
Goodwill717,738 973,578 
Other intangible assets, net526,303 555,272 
Right-of-use lease assets48,239 48,417 
Other long-term assets35,714 27,373 
Long-term assets held for sale663,644 
Total assets$3,197,821 $4,321,741 
LIABILITIES
Current maturities of long-term debt$$
Accounts payable112,333 114,994 
Operating lease liabilities—current15,194 11,857 
Accrued liabilities73,811 85,410 
Current liabilities held for sale58,103 
Total current liabilities201,338 270,364 
Long-term debt, excluding current portion1,400,369 1,843,224 
Deferred income taxes175,901 209,425 
Operating lease liabilities—noncurrent32,019 34,908 
Other long-term liabilities111,015 91,304 
Long-term liabilities of held for sale87,198 
Total liabilities1,920,642 2,536,423 
Commitments and contingencies (Note 24)00
EQUITY
Common stock ($0.01 par); authorized shares 450,000,000; issued shares 137,102,143 and 136,861,382 on December 31, 2020 and 2019, respectively; outstanding shares 136,318,557 and 136,464,961 on December 31, 2020 and 2019, respectively1,371 1,369 
Preferred stock ($0.01 par); authorized shares 50,000,000; 0 shares issued or outstanding on December 31, 2020 and 2019, respectively
Additional paid-in capital1,477,859 1,696,899 
(Accumulated deficit) retained earnings(175,758)103,013 
Treasury stock, at cost; shares 783,586 and 396,421 on December 31, 2020 and 2019, respectively(11,081)(6,483)
Accumulated other comprehensive loss(15,265)(15,348)
Total PQ Group Holdings Inc. equity1,277,126 1,779,450 
Noncontrolling interest53 5,868 
Total equity1,277,179 1,785,318 
Total liabilities and equity$3,197,821 $4,321,741 

December 31,
2023
December 31,
2022
ASSETS
Cash and cash equivalents$88,365 $110,920 
Accounts receivable, net81,314 74,758 
Inventories, net45,115 44,362 
Derivative assets13,419 18,510 
Prepaid and other current assets17,774 19,154 
Total current assets245,987 267,704 
Investments in affiliated companies440,198 436,013 
Property, plant and equipment, net576,904 584,889 
Goodwill404,470 403,163 
Other intangible assets, net116,550 129,932 
Right-of-use lease assets24,281 28,265 
Other long-term assets29,361 34,587 
Total assets$1,837,751 $1,884,553 
LIABILITIES
Current maturities of long-term debt$9,000 $9,000 
Accounts payable40,195 40,019 
Operating lease liabilities—current8,193 8,155 
Accrued liabilities61,693 72,229 
Total current liabilities119,081 129,403 
Long-term debt, excluding current portion858,946 865,870 
Deferred income taxes115,791 136,184 
Operating lease liabilities—noncurrent16,030 20,021 
Other long-term liabilities22,439 25,846 
Total liabilities1,132,287 1,177,324 
Commitments and contingencies (Note 23)
EQUITY
Common stock ($0.01 par); authorized shares 450,000,000; issued shares 140,744,045 and 139,571,272 on December 31, 2023 and 2022, respectively; outstanding shares 116,116,895 and 122,186,238 on December 31, 2023 and 2022, respectively1,407 1,396 
Preferred stock ($0.01 par); authorized shares 50,000,000; no shares issued or outstanding on December 31, 2023 and 2022, respectively— — 
Additional paid-in capital1,102,581 1,091,475 
Accumulated deficit(170,856)(242,010)
Treasury stock, at cost; shares 24,627,150 and 17,385,034 on December 31, 2023 and 2022, respectively(226,710)(149,624)
Accumulated other comprehensive (loss) income(958)5,992 
Total equity705,464 707,229 
Total liabilities and equity$1,837,751 $1,884,553 

See accompanying notes to consolidated financial statements.
F-7

Table of Contents
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands, except share data)
Shares of
Common stock
Shares of
Common stock
Common
stock
Additional
paid-in
capital

Accum.
deficit
Shares of
Treasury stock
Treasury
stock, at
cost 
Accum. other comp. income (loss)Non-control
ling interest
Total
Balance, December 31, 2020
Net (income) loss
Other comprehensive income
Shares of
Common stock
Common
stock
Additional
paid-in
capital
Retained earnings
(accum.
deficit)
Shares of
Treasury stock
Treasury
stock, at
cost 
Accum. other comp. income (loss)Non-control
ling interest
Total
December 31, 2017135,244,379 $1,352 $1,655,114 $(32,777)$$4,311 $3,919 $1,631,919 
Net income— — — 58,300 — — — 1,321 59,621 
Other comprehensive income (loss)— — — — — — (43,415)71 (43,344)
Repurchases of common shares— — — — (166,224)(2,920)— — (2,920)
Tax withholdings on equity award vesting
Tax withholdings on equity award vesting
Tax withholdings on equity award vesting
Distributions to noncontrolling interestsDistributions to noncontrolling interests— — — — — — — (726)(726)
Dividends paid on common stock ($3.20 per share)
Stock compensation expenseStock compensation expense— — 19,464 — — — — — 19,464 
Shares issued under equity incentive plan, net of forfeituresShares issued under equity incentive plan, net of forfeitures513,890 125 — — — 131 
December 31, 2018135,758,269 $1,358 $1,674,703 $25,523 (166,224)$(2,920)$(39,104)$4,585 $1,664,145 
Cumulative effect adjustment from adoption of new accounting standards— — — (2,049)— — 1,874 — (175)
December 31, 2018, as adjusted135,758,269 $1,358 $1,674,703 $23,474 (166,224)$(2,920)$(37,230)$4,585 $1,663,970 
Balance, December 31, 2021
Net incomeNet income— — — 79,539 — — — 771 80,310 
Other comprehensive income (loss)— — — — — — 21,882 772 22,654 
Other comprehensive income
Repurchases of common sharesRepurchases of common shares— — — — (230,197)(3,563)— — (3,563)
Distributions to noncontrolling interests— — — — — — — (260)(260)
Tax withholdings on equity award vesting
Stock compensation expenseStock compensation expense— — 18,225 — — — — — 18,225 
Shares issued under equity incentive plan, net of forfeituresShares issued under equity incentive plan, net of forfeitures1,103,113 11 3,971 — — — 3,982 
December 31, 2019136,861,382 $1,369 $1,696,899 $103,013 (396,421)$(6,483)$(15,348)$5,868 $1,785,318 
Net loss— — — (278,771)— — — (2,933)(281,704)
Other comprehensive income (loss)— — — — — — (14,492)(923)(15,415)
Balance, December 31, 2022
Net income
Other comprehensive loss
Repurchases of common sharesRepurchases of common shares— — — — (387,165)(4,598)— — (4,598)
Distributions to noncontrolling interests— — — — — — — (1,219)(1,219)
Dividends paid on common stock ($1.80 per share)— — (243,749)— — — — — (243,749)
Disposal of business— — — — — — 14,575 (740)13,835 
Tax withholdings on equity award vesting
Excise tax on repurchases of common shares
Stock compensation expenseStock compensation expense— — 24,366 — — — — — 24,366 
Shares issued under equity incentive plan, net of forfeituresShares issued under equity incentive plan, net of forfeitures240,761 343 — — — 345 
December 31, 2020137,102,143 $1,371 $1,477,859 $(175,758)(783,586)$(11,081)$(15,265)$53 $1,277,179 
Balance, December 31, 2023

See accompanying notes to consolidated financial statements.
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Table of Contents
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
Years ended December 31,
202020192018
Cash flows from operating activities:
Net (loss) income$(281,704)$80,310 $59,621 
Net loss (income) from discontinued operations102,241 (14,557)(9,242)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation114,641 111,032 111,491 
Amortization37,199 40,765 42,440 
Goodwill impairment charge260,000 
Amortization of deferred financing costs and original issue discount3,750 3,786 4,230 
Debt extinguishment costs22,658 3,400 5,627 
Foreign currency exchange (gain) loss(4,172)2,410 12,543 
Pension and postretirement healthcare benefit expense879 3,536 2,280 
Pension and postretirement healthcare benefit funding(9,138)(8,825)(6,805)
Deferred income tax provision (benefit)(64,693)15,489 4,072 
Net (gain) loss on asset disposals(11,392)(13,207)4,190 
Stock compensation21,527 16,212 18,419 
Equity in net income from affiliated companies(21,237)(46,022)(37,569)
Dividends received from affiliated companies40,098 40,073 40,195 
Net interest income on swaps designated as net investment hedges(4,963)(8,480)(4,859)
Gain on contract termination(20,612)
Other, net(9,479)(5,292)(907)
Working capital changes that provided (used) cash, excluding the effect of acquisitions and dispositions:
Receivables7,031 11,407 (4,191)
Inventories9,392 (9,981)(7,165)
Prepaids and other current assets2,016 2,294 (6,996)
Accounts payable4,163 (576)(3,491)
Accrued liabilities(13,435)3,886 9,855 
Net cash provided by operating activities, continuing operations205,382 227,660 213,126 
Net cash provided by operating activities, discontinued operations18,216 40,103 35,518 
Net cash provided by operating activities223,598 267,763 248,644 
Cash flows from investing activities:
Purchases of property, plant and equipment(97,135)(111,102)(111,795)
Investment in affiliated companies(5,000)
Proceeds from business divestiture, net of cash and indebtedness624,256 
Proceeds from sale of assets9,375 17,600 12,380 
Proceeds from sale of product line18,000 27,658 
Proceeds from sale of investment1,761 
Proceeds from settlement of swaps designated as net investment hedges38,070 
Net interest proceeds on swaps designated as net investment hedges4,963 8,480 4,859 
Other, net1,015 475 829 
Net cash provided by (used in) investing activities, continuing operations562,235 (18,819)(98,727)
Net cash (used in) provided by investing activities, discontinued operations(10,763)(16,540)(20,563)
Net cash (used in) provided by investing activities551,472 (35,359)(119,290)

Years ended December 31,
202320222021
Cash flows from operating activities:
Net income (loss)$71,154 $73,697 $(139,616)
Net (income) loss from discontinued operations— (3,902)141,410 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation70,551 65,121 65,955 
Amortization14,047 14,042 13,786 
Amortization of deferred financing costs and original issue discount2,076 2,031 1,907 
Debt extinguishment costs— — 21,166 
Foreign currency exchange (gain) loss(589)978 4,716 
Deferred income tax (benefit) provision(17,072)1,652 4,548 
Net loss on asset disposals4,137 3,594 5,666 
Stock compensation16,031 20,632 31,838 
Equity in net (income) from affiliated companies(30,624)(27,725)(27,737)
Dividends received from affiliated companies28,000 35,000 35,000 
Other, net647 (2,660)(3,232)
Working capital changes that provided (used) cash, excluding the effect of acquisitions and dispositions:
Receivables(6,093)5,503 (33,476)
Inventories(1,399)9,902 631 
Prepaids and other current assets(985)(7,827)
Accounts payable2,351 (10,127)10,006 
Accrued liabilities(14,635)(7,448)12,597 
Net cash provided by operating activities, continuing operations137,597 180,295 137,338 
Net cash provided by (used in) operating activities, discontinued operations— 6,311 (7,420)
Net cash provided by operating activities137,597 186,606 129,918 
Cash flows from investing activities:
Purchases of property, plant and equipment(65,335)(58,870)(60,045)
Proceeds from business divestitures, net of cash— — 978,449 
Payments for business divestiture, net of cash— (3,744)— 
Business combinations, net of cash acquired— (488)(42,639)
Other, net— 81 (12)
Net cash (used in) provided by investing activities, continuing operations(65,335)(63,021)875,753 
Net cash used in investing activities, discontinued operations— — (40,021)
Net cash (used in) provided by investing activities(65,335)(63,021)835,732 
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Table of Contents
Years ended December 31,
202020192018
Years ended December 31,Years ended December 31,
2023202320222021
Cash flows from financing activities:Cash flows from financing activities:
Draw down of revolving credit facilitiesDraw down of revolving credit facilities140,626 177,874 119,134 
Draw down of revolving credit facilities
Draw down of revolving credit facilities
Repayments of revolving credit facilitiesRepayments of revolving credit facilities(140,626)(177,874)(144,134)
Issuance of long-term debt, net of original issue discount and financing feesIssuance of long-term debt, net of original issue discount and financing fees640,340 1,267,000 
Debt issuance costsDebt issuance costs(8,987)(6,395)
Debt issuance costs
Debt issuance costs
Repayments of long-term debtRepayments of long-term debt(1,091,134)(215,000)(1,367,959)
Debt prepayment feesDebt prepayment fees(10,550)
Proceeds from financing obligation
Dividends paid to stockholdersDividends paid to stockholders(243,749)
Dividends paid to stockholders
Dividends paid to stockholders
Repurchases of common sharesRepurchases of common shares(4,598)(3,563)(2,920)
Tax withholdings on equity award vesting
Proceeds from stock options exercised373 3,975 131 
Repayments of financing obligation
Repayments of financing obligation
Repayments of financing obligation
Other, netOther, net(2,868)(317)(134)
Net cash used in financing activities, continuing operationsNet cash used in financing activities, continuing operations(721,173)(214,905)(135,277)
Net cash used in financing activities, discontinued operationsNet cash used in financing activities, discontinued operations(1,647)(1,188)(1,948)
Net cash used in financing activitiesNet cash used in financing activities(722,820)(216,093)(137,225)
Effect of exchange rate changes on cash, cash equivalents and restricted cash11,052 (2,120)354 
Net change in cash, cash equivalents and restricted cash63,302 14,191 (7,517)
Cash, cash equivalents and restricted cash at beginning of period73,917 59,726 67,243 
Cash, cash equivalents and restricted cash at end of period$137,219 $73,917 $59,726 
Less cash, cash equivalents and restricted cash of discontinued operations$$(18,725)$(21,127)
Cash, cash equivalents and restricted cash at end of period of continuing operations$137,219 $55,192 $38,599 
Effect of exchange rate changes on cash and cash equivalents
Effect of exchange rate changes on cash and cash equivalents
Effect of exchange rate changes on cash and cash equivalents
Net change in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period


For supplemental cash flow disclosures, see Note 28.25.
See accompanying notes to consolidated financial statements.
F-10

Table of Contents

PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)



1. Background and Basis of Presentation:
Description of Business
PQ Group HoldingsEcovyst Inc. and subsidiaries (the “Company” or “PQ Group Holdings”“Ecovyst”) is a leading integrated and innovative global provider of advanced materials, specialty catalysts chemicals and services. The Company supports customers globally through its strategically located network of manufacturing facilities. The Company believes that its products which are predominantly inorganic, and services contribute to improving the sustainability of the environment.
Basis of Presentation
The Company has 3 uniquely positioned specialty businesses: Refining Services provides sulfuric acid recycling to the North American refining industry; Catalysts serves the packaging and engineered plastics industry and the global refining, petrochemical and emissions control industries through its Zeolyst joint venture; and Performance Chemicals supplies diverse product end uses, including personal and industrial cleaning products, fuel-efficient tires, surface coatings, and food and beverage products.
EffectiveOn December 14, 2020, the Company completed the sale of its Performance Materials business and thefor $650,000. The financial results of operations of this business have beenare presented as discontinued operations in the consolidated financial statements for the 2021 period presented. On August 1, 2021, the Company completed the sale of incomeits Performance Chemicals business for all$1,100,000. The financial results of this business are presented as discontinued operations in the consolidated financial statements for the 2022 and 2021 periods presented. See Note 4 for more information on the assets and liabilities classified as held for sale. The notes to thethese consolidated financial statements unless otherwise indicated,for further information on these transactions.
The Company has two uniquely positioned specialty businesses: Ecoservices provides sulfuric acid recycling to the North American refining industry for the production of alkylate and provides high quality and high strength virgin sulfuric acid for industrial and mining applications; and Advanced Materials & Catalysts provides finished silica catalysts, catalyst supports and functionalized silicas necessary to produce high performing plastics and to enable sustainable chemistry, and through the Zeolyst Joint Venture, innovates and supplies zeolites used in catalysts that support the production of sustainable fuels, remove nitrogen oxides from diesel engine emissions and that are on a continuing operations basis.broadly applied in refining and petrochemical processes.
Effective November 28, 2023, the Company renamed the Catalyst Technologies segment to Advanced Materials & Catalysts. Beginning with the year ended December 31, 2023, the segment results and disclosures included in the Company’s consolidated financial statements reflect the new segment name for all periods presented. This change to the Company’s segment name does not change the Company’s consolidated balance sheets, statements of income or cash flows for the prior periods or the way the Company’s CODM evaluated the business.
The Company’s Refining Servicesregeneration services product group, which is a part of the Company’s Ecoservices segment, typically experiences seasonal fluctuations as a result of higher demand for gasoline products in the summer months and lower demand in the winter months. These demand fluctuations result in higher sales and working capital requirements in the second and third quarter.quarters.
COVID-19
In March 2020, the outbreak of a novel coronavirus (“COVID-19”) was declared a national emergency in the United States. COVID-19 continuesThe notes to spread in the United States and other parts of the world and has adversely impacted economic activity and contributed to volatility in financial markets. In response to the COVID-19 pandemic, the federal government and various state, local and foreign governments have issued decrees and orders that have disrupted many businesses and implemented social distancing, travel and other restrictions. In response to these restrictions, the Company has taken a variety of actions, including an international travel ban, distribution of personal protective equipment to employees and work-at-home requirements for many of the Company’s employees who are not an integral part of its manufacturing operations. The Company has also implemented and refined its existing business continuity plans in an effort to minimize operational disruptions. The Company’s manufacturing operations, as well as the operations of its key vendors and the majority of its key customers, have continued to operate with limited interruptions. The extent and timing of the impact of the COVID-19 pandemic on the Company’s business led to lower sales volume demand beginning in the second quarter of 2020. The Company is not aware of any specific event or circumstance that would require an update to our estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of the issuance of the consolidated financial statements. These estimates may change, as the pandemic continues to evolve and the duration remains uncertain, and may adversely impact the Company’s results ofstatements, unless otherwise indicated, are on a continuing operations financial condition or cash flow.basis.
F-11

Table of Contents

PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


2. Summary of Significant Accounting Policies:
Principles of Consolidation. The consolidated financial statements include the accounts of the Company and its controlled subsidiaries. Investments in affiliated companies are recorded at cost plus the Company’s equity in their undistributed earnings. All intercompany transactions have been eliminated. Noncontrolling interests represent third-party equity ownership in certain of the Company’s consolidated subsidiaries and are presented as a component of equity separate from the equity attributable to the Company’s shareholders. The noncontrolling interests’ share in the Company’s net earnings are included in net income attributable to the noncontrolling interest in the Company’s consolidated statements of income, and their portion of the Company’s comprehensive income is included in comprehensive income (loss) attributable to noncontrolling interests in the Company’s consolidated statements of comprehensive income (loss). The Company’s noncontrolling interests relate to third-party minority ownership interests held in certain of the Company’s foreign subsidiaries acquired as part of a former business combination.
Foreign Currency Translation. All assets and liabilities of foreign subsidiaries and affiliated companies are translated to U.S. dollars using exchange rates in effect at the balance sheet date. Income and expense items are translated at average exchange rates during the year. Adjustments resulting from translation of the balance sheets and intercompany loans, which are considered permanent,statements of income are included in stockholders’ equity as part of accumulated other comprehensive income (loss)., and are included in earnings only upon the sale or liquidation of the underlying foreign subsidiary or affiliated company.
Foreign currency transaction gains and losses are recognized in earnings based on differences between foreign currency exchange rates on the transaction date and on the settlement date. Adjustments resulting from translation of certain intercompany loans, which are not considered permanent and are denominated in foreign currencies, are included in other expense (income) expense,, net in the consolidated statements of income. The Company considers intercompany loans to be of a permanent or long-term nature if management expects and intends that the loans will not be repaid. For the years ended December 31, 2020, 20192023, 2022 and 2018,2021, all intercompany loan arrangements were determined to be non-permanent based on management’s intention as well as actual lending and repayment activity. Therefore, the foreign currency transaction gains or losses associated with the intercompanyintercompany loans were recorded in the consolidated statements of income for the years ended December 31, 2020, 20192023, 2022 and 2018.2021.
Income and expense items are translated at average exchange rates during the year. Net foreign currency exchange (gains) and losses included in other expense (income) expense,, net were $(4,172)$(589), $2,410$978 and $12,543$4,716 for the years ended December 31, 2020, December 31, 20192023, 2022 and December 31, 2018,2021, respectively. The netnet foreign currency (gains) and losses realized in 2020during these years were primarily driven by the non-permanent intercompany debt denominated in local currency and translated to U.S. dollars. The net foreign currency losses realized in 2019 and in 2018 were primarily driven by the Euro-denominated term loan (which was settled as part of the February 2018 term loan refinancing, see Note 17 to these consolidated financial statements for further information) and the non-permanent intercompany debt denominated in local currency and translated to U.S. dollars.
Cash and Cash Equivalents. Cash and cash equivalents include highly liquid investments with original terms to maturity of 90 days or less from the time of purchase.
Restricted Cash. Restricted cash, which is restricted as to withdrawal or usage, is classified separately from cash and cash equivalents on the Company’s consolidated balance sheets. The Company’s totalCompany had no restricted cash balances were $1,688 and $1,331 as of December 31, 20202023 and 2019, respectively, and are included on the Company’s consolidated balance sheets as other current assets.2022.
Accounts Receivable and Allowance for Credit Losses. Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The allowance for credit losses is the Company’s best estimate of the amount of probable credit losses in its existing accounts receivable and is reviewed during each reporting period over their contractual life. The Company recognizes an allowance for credit losses based on historical collection experience, current regional economic and market conditions, the aging of accounts receivable and assessments of current creditworthiness of customers. Account balances are charged against the allowance when the Company believes it is probable that the associated receivables will not be recovered. If the financial condition of the Company’s customers were to deteriorate resulting in an impairment of their ability to make payments, additional allowances may be required. The Company does not have any off-balance sheet credit exposure related to its customers. As of December 31, 2020 and 2019, theThe Company’s allowance for credit losses was $1,521not material as of December 31, 2023 and $2,068, respectively.2022.
Inventories. Certain domestic inventories are stated at the lower of cost or market and valued using the last-in, first-out (“LIFO”) method. All other inventories are stated at the lower of cost andor net realizable value and valued using the weighted average cost or first-in, first-out (“FIFO”) methods.
F-12

Table of Contents

PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Property, Plant and Equipment. Property, plant and equipment are carried at cost and include expenditures for new facilities, major renewals and betterments. The Company capitalizes the cost of furnace rebuilds as part of property, plant and equipment. Maintenance, repairs and minor renewals are charged to expense as incurred. The Company capitalizes certain internal costs associated with the implementation of purchased software. When property, plant and equipment is retired or otherwise disposed of, the net carrying amount is eliminated with any gain or loss on disposition recognized in earnings at that time.
F-12



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Depreciation is provided on the straight-line method based on the estimated useful lives of the assets, which generally range from 15 to 33 years for buildings and improvements and 3 to 10 years for machinery and equipment. Leasehold improvements are depreciated using the straight-line method based on the shorter of the useful life of the improvement or remaining lease term.
The Company capitalizes the interest cost associated with the development and construction of significant new plant and equipment and depreciates that amount over the lives of the related assets. Capitalized interest recorded during the years ended December 31, 2020, 20192023, 2022 and 20182021 was $1,780, $1,981$1,964, $1,442 and $3,576,$1,235, respectively.
LeasesLeases. The Company has operating and finance lease agreements with remaining lease terms as of December 31, 20202023 of up to 3018 years, including leases of land, buildings, railcars, vehicles, manufacturing equipment and general office equipment. Some leases include options to terminate or extend for one or more years. These options are incorporated in the Company’sCompany’s lease term when it is reasonably certain that the option will be exercised. Some leases include options to purchase, which the Company assesses under the guidance to determine if these leases should be classified as finance lease agreements.
When the Company enters into an arrangement, at inception, the Company determines if the arrangement contains a lease and whether that lease meets the classification criteria of a finance or operating lease. Some of the Company’s lease arrangements contain lease components (e.g. minimum rent payments) and non-lease components (e.g. maintenance). The Company accounts for the lease and non-lease components separately based on the estimated standalone price of each component. Certain of the Company’s lease agreements include rental payments that are adjusted periodically for an index or rate and these are initially measured using the index or rate in effect at the commencement date. Variable lease expense is recognized in the period in which the obligation for those payments is incurred. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.
The Company recognizes a right-of-use lease asset and lease liability at the lease commencement date based on the present value of the remaining lease payments over the lease term. The Company assesses its leasing arrangements to determine the rate implicit in the lease arrangement. Historically, the Company’s leasing arrangements do not contain the information necessary to determine the rate implicit in the lease. As such, the Company utilizes its incremental borrowing rate over the relevant lease term, which is the rate of interest that it would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. The incremental borrowing rate is determined at the lease commencement date and is developed utilizing a readily available market interest rate curve adjusted for the Company’s credit quality. The Company has elected to use a portfolio approach to apply its incremental borrowing rate to individual leases based on lease term and geographic jurisdiction. Short-term leases, which have an initial term of twelve months or less, are not recorded on the Company’s balance sheet.
Lease expense for operating leases is recognized on a straight-line basis over the lease term. Lease expense for financing leases is bifurcated into two components, with the amortization expense component of the right-of-use asset recognized on a straight-line basis and the interest expense component recognized using the effective interest method over the lease term. The amortization expense component of the right-of-use lease asset is included in cost of goods sold and in selling, general and administrative expenses and the interest expense component is included in interest expense, net on the consolidated statements of income.
Spare Parts. Spare parts are maintained by the Company’s facilities to keep machinery and equipment in working order. Spare parts are capitalized and included in other long-term assets. Spare parts are measured at cost and are not depreciated or expensed until utilized; however, reserves may be provided on aged spare parts. When a spare part is utilized as part of an improvement to property, plant and equipment, the carrying value is depreciated over the applicable life once placed in service. Otherwise, the spare part is expensed and charged as a cost of production when utilized.
F-13

Table of Contents

PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Investments in Affiliated Companies. Investments in affiliated companies are accounted for using the equity method of accounting if the investment provides the Company with the ability to exercise significant influence, but not control, over the investee. Significant influence is generally deemed to exist if the Company’s ownership interest in the voting stock of the investee ranges between 20% and 50%, although other factors, such as representation on the investee’s board of directors and the impact of commercial arrangements, are considered in determining whether the equity method of accounting is appropriate. Under the equity method of accounting, the investments in equity-method investees are
F-13



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


recorded in the consolidated balance sheets as investments in affiliated companies, and the Company’s share of the investees’ earnings or losses, together with other than temporary impairments in value, is recorded as equity in net income from affiliated companies in the consolidated statements of income. Any differences between the Company’s cost of an equity method investment and the underlying equity in the net assets of the investment, such as fair value step-ups resulting from acquisitions, are accounted for according to their nature and impact the amounts recognized as equity in net income from affiliated companies in the consolidated statements of income.
The Company evaluates all distributions received from its equity method investments using the nature of distribution approach. Under this approach, the Company evaluates the nature of activities of the investee that generated the distribution. The distributions received are either classified as a return on investment, which is presented as a component of operating activities on the Company’s consolidated statements of cash flows, or as a return of investment, which is presented as a component of investing activities on the Company’s consolidated statements of cash flows.
The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may be impaired. If a decline in the value of an equity method investment is determined to be other than temporary, a loss is recorded in earnings in the current period.
Goodwill and Intangible Assets. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a former business combination that are not individually identified and separately recognized. The Company is required to test goodwill associated with each of its reporting units for impairment at least annually and whenever events or circumstances indicate that it is more likely than not that goodwill may be impaired. The Company performs its annual goodwill impairment test as of October 1.
Goodwill is tested for impairment at the reporting unit level. In performing tests for goodwill impairment, the Company is able to use its discretion to first perform an optional qualitative assessment about the likelihood of the carrying value of a reporting unit exceeding its fair value. The qualitative assessment need not be applied to all reporting units. If the Company determines that it is more likely than not that the fair value of a reporting unit is less than its carrying amount based on the qualitative assessment, the Company will perform a quantitative goodwill impairment test to identify the potential goodwill impairment and measure the amount of the goodwill impairment loss, if any, to be recognized for that reporting unit. For the annual assessments in 20202023 and 2019,2022, the Company bypassed the option to perform the qualitative assessment and proceeded directly to performing the quantitative goodwill impairment test for each of ourits reporting units. The quantitative test identifies both the potential existence of impairment and the amount of impairment loss.
In applying the quantitative test, the Company calculates and compares the reporting unit’s estimated fair value to its carrying value, including goodwill. If the fair value of a reporting unit exceeds its carrying value, goodwill is not impaired. If the carrying value of a reporting unit exceeds its implied fair value, an impairment chargeloss is recognized requiring recognition of a goodwill impairment charge for the differential up toamount by which the carrying value of goodwill.exceeds the reporting unit’s fair value. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit and the loss establishes a new basis in the goodwill. Subsequent reversal of an impairment loss is not permitted.
For intangible assets other than goodwill, definite-lived intangible assets are amortized over their respective estimated useful lives. Intangible assets with indefinite lives are not amortized, but rather are tested for impairment at least annually or more frequently if events occur or circumstances change that would more likely than not reduce the fair value of the intangible asset below its carrying amount. The Company tests its indefinite-lived intangible assets as of October 1 of each year in conjunction with its annual goodwill impairment test.
Impairment Assessment of Long-Lived Assets. The Company performs an impairment review of property, plant and equipment and definite-lived intangible assets when facts and circumstances indicate that the carrying value of an asset or asset group may not be recoverable from its undiscounted future cash flows. When evaluating long-lived assets for
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


impairment, if the carrying amount of an asset or asset group is found not to be recoverable, a potential impairment loss may be recognized. An impairment loss is measured by comparing the carrying amount of the asset or asset group to its fair value. Fair value is determined using quoted market prices when available, or other techniques including discounted cash flows. The Company’s estimates of future cash flows involve assumptions concerning future operating performance, economic conditions and technological changes that may affect the future useful lives of the assets.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Derivative Financial Instruments. The Company utilizes certain derivative financial instruments to enhance its ability to manage risk, including exposure to interest rate commodity price and foreign currency fluctuations that exist as part of ongoing business operations. Derivative instruments are entered into for periods consistent with the related underlying exposures and do not constitute positions independent of those exposures.
All derivatives designated as hedges are recognized on the consolidated balance sheets at fair value. The Company may designate a derivative as a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge), a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge), a foreign currency fair-value or cash-flow hedge (foreign currency hedge), or a hedge of a net investment in a foreign operation (net investment hedge). The Company’s hedging strategies include derivatives designated as cash flow hedges and net investment hedges.
Changes in the fair value of a derivative that is highly effective and that is designated and qualifies as a cash flow hedge are recorded in other comprehensive income and subsequently reclassified into earnings in the same period(s) in which the hedged transaction affects earnings. Changes in the fair value of a derivative that is highly effective and that is designated and qualifies as a hedge of a net investment in a foreign operation are recorded in the foreign currency translation adjustment account within accumulated other comprehensive income, where the associated gains and losses will remain until such time that the hedged net investment (foreign subsidiary) is sold or liquidated.
Changes in the fair value of a derivative that is not designated or does not qualify as a hedge are recorded in the consolidated statements of income. Cash flows from derivative instruments are reported in the same cash flow category as the cash flows from the items being hedged.
The Company formally documents all relationships between hedging instruments and hedged items, as well as its risk-management objective and strategy for undertaking various hedge transactions. The Company also formally assesses whether each hedging relationship is highly effective in achieving offsetting changes in fair values or cash flows of the hedged item during the period, both at the inception of the hedge and on an ongoing basis. If it is determined that a derivative is not highly effective as a hedge, or if a derivative ceases to be a highly-effective hedge, hedge accounting is discontinued with respect to that derivative prospectively.
Fair Value Measurements. The Company measures fair value using the guidelines under U.S. generally accepted accounting principles (“GAAP”). An asset’s fair value is defined as the price at which the asset could be exchanged in a current transaction between market participants. A liability’s fair value is defined as the amount that would be paid to transfer the liability to a market participant, not the amount that would be paid to settle the liability with the creditor. See Note 6 to these consolidated financial statements regarding the application of fair value measurements.
The carrying values of cash, accounts receivable, accounts payable and accrued liabilities approximate fair value due to the short-term nature of these items. See Note 176 to these consolidated financial statements for further information regarding the application of fair value measurements and Note 16 regarding the fair value of debt.
Treasury Stock. The Company records repurchases of its common stock for treasury at cost. Upon the reissuance of the Company’s common stock from treasury, differences between the proceeds from reissuance and the average cost of the treasury stock are credited or charged to capital in excess of par value to the extent of prior credits related to the reissuance of treasury stock. If no such credits exist, the differences are charged to retained earnings. See Note 7 of these consolidated financial statements for further information regarding the Company’s treasury stock repurchases.
Revenue Recognition. In determining the appropriate amount of revenue to be recognized as the Company fulfills its obligations under its agreements, the Company performs the following steps: (i) identification of the contract with the customer; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price; (iv) allocation of the transaction price to the performance obligations based on estimated selling prices; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation.
The Company identifies a contract when an agreement with a customer creates legally enforceable rights and obligations, which occurs when a contract has been approved by both parties, the parties are committed to perform their respective obligations, each party’s rights and payment terms are clearly identified, commercial substance exists and it is probable that the Company will collect the consideration to which it is entitled.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The Company may offer rebates to customers who have reached a specified volume of optional purchases. The Company recognizes rebates given to customers as a reduction of revenue based on an allocation of the cost of honoring rebates earned and claimed to each of the underlying revenue transactions that result in progress by the customer toward earning the rebate. Rebates are recognized at the time revenue is recorded. The Company measures the rebate obligation based on the estimated amount of sales that will result in a rebate at the adjusted sales price per the respective sales agreement.
Shipping and Handling Costs.Handling. Amounts billed to a customer in a sale transaction related to shipping and handling, if any, represent revenues earned for the goods provided and are classified as revenue. Costs related to shipping and handling of products shipped to customers are classified as cost of goods sold. Refer toSee Note 5 of these consolidated financial statements for disclosures regarding the recognition of revenue for shipping and handling costs that are billed to customers.
Research and Development. Research and development costs of $11,597, $12,514$7,797, $7,232 and $13,719$7,499 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively, were expensed as incurred and reported in selling, general and administrative expenses in the consolidated statements of income.
Income Taxes. The Company operates within multiple taxing jurisdictions and is subject to tax filing requirements and potential audits within these jurisdictions. The Company uses the asset and liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, using statutory tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the results of operations in the period that includes the enactment date. The Company evaluates its deferred tax assets each period to ensure that estimated future taxable income will be sufficient in character (e.g., capital gain versus ordinary income treatment), amount and timing, to result in their realizability. A valuation allowance is recorded to reduce the carrying amounts of deferred tax assets, unless it is more likely than not that those assets will be realized.
Generally, APB 23 of ASC Topic 740, Income Taxes (“ASC 740”), provides guidance with respect to establishing deferred income taxes on earnings from foreign subsidiaries, to the extent that these earnings are considered to be available for repatriation. Further, ASC 740-30 requires that deferred taxes be established with respect to the earnings of a foreign subsidiary, unless existing tax law provides a means by which the investment in a subsidiary can be recovered tax-free. The Company has determined that it is able to repatriate the non-permanently reinvested earnings of its foreign subsidiaries in a tax-free manner. As such, the Company is able to asset,assert, for purposes of ASC 740-30, that no deferred income taxes are needed with respect to earnings from foreign subsidiaries.
The Company recognizes a financial statement benefit for positions taken for tax return purposes when it will be more likely than not (i.e. greater than 50%) that the positions will be sustained upon tax examination, based solely on the technical merits of the tax positions. Otherwise, no tax benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. The Company recognizes potential accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. Tax examinations are often complex as tax authorities may disagree with the treatment of items reported by the Company and may require several years to resolve. These accrued liabilities represent a provision for taxes that are reasonably expected to be incurred on the basis of available information but which are not certain.
Pursuant to the Securities and Exchange Commission (“SEC”) Staff Accounting Bulletin No.118 (“SAB 118”), the Company was allowed a measurement period of up to one year after the enactment date of the Tax Cuts and Jobs Act (“TCJA”) to finalize the recording of any related tax impacts with respect to its transition tax liability. In accordance with SAB 118, the Company finalized the impacts of the transition tax as of December 31, 2018 and recorded a measurement period adjustment of $2,102 as a benefit to tax expense. There was no cash tax outlay associated with the final transition tax amount, as the Company elected to utilize net operating loss (“NOL”) carryforwards to offset the associated taxable income.
Based on FASB guidance, the Company is permitted to make an accounting policy election to either (1) treat the taxes incurred as a result of the Global Intangible Low Taxed Income (“GILTI”) provision as a current-period expense when incurred or (2) factor such amounts into its measurement of deferred taxes. The Company has elected to treat any expense incurred as a current-period expense.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Asset Retirement Obligations. The Company records a liability when the fair value of any future obligation to retire a long-lived asset as a result of an existing or enacted law, statute, ordinance or contract is reasonably estimable. The Company also records a liability for the fair value of a conditional asset retirement obligation if the fair value can be reasonably estimated. When the liability is initially recorded, the Company capitalizes the cost by increasing the amount of the related long-lived asset. Over time, the Company adjusts the liability to its present value by recognizing accretion expense as an operating expense in the consolidated statements of income each period, and the capitalized cost is depreciated over the useful life of the related asset. Upon settlement of the liability, the Company records a gain or loss if the actual costs differ from the accrued amount.
The Company has recorded asset retirement obligations (“AROs”) in other long-term liabilities in order to recognize legal obligations associated with the retirement of tangible long-lived assets. The Company has assessed whether an ARO is required at each manufacturing facility and has recorded an obligation for those locations for which an obligation exists. The most significant of these are primarily attributable to environmental remediation liabilities associated with current operations that were incurred during the course of normal operations. The Company has AROs that are conditional in nature. The Company identified certain conditional AROs upon which it was able to reasonably estimate their fair value and recorded a liability. These AROs were triggered upon commitments by the Company to comply with local, state and national laws to remove environmentally hazardous materials. The AROs have been recognized on a discounted basis using a credit adjusted risk free rate. Accretion of the AROs is recorded in other operating expense, net in the Company’s consolidated statements of income.
The following table includes the changes in the Company’s ARO liability during the years ended December 31, 2020 and 2019:
Years ended
December 31,
20202019
Beginning balance$4,555 $4,224 
Accretion expense342 311 
Foreign exchange impact46 20 
Ending balance$4,943 $4,555 
Environmental Expenditures. Environmental expenditures that pertain to current operations or to future revenues are expensed or capitalized consistent with the Company’s capitalization policy for property, plant and equipment. Expenditures that result from the remediation of an existing condition caused by past operations and that do not contribute to current or future revenues are expensed. Liabilities are recognized for remedial activities when the remediation is probable and the cost can be reasonably estimated. Recoveries of expenditures for environmental remediation are recognized as assets only when recovery is deemed probable. See Note 2423 to these consolidated financial statements for further information regarding commitments and contingencies and Note 16 regarding the accrued environmental reserve.contingencies.
Deferred Financing Costs. Financing costs incurred in connection with the issuance of long-term debt are deferred and presented as a direct reduction from the related debt instruments on the Company’s consolidated balance sheets. Deferred financing costs are amortized as interest expense using the effective interest method over the respective terms of the associated debt instruments.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Stock-Based Compensation. The Company applies the fair value based method to account for stock options, restricted stock awards, restricted stock units and performance stock units issued in connection with its equity incentive plans. Stock-based compensation expense is recognized on a straight-line basis over the vesting periods of the respective awards, and the Company accounts for forfeitures of equity incentive awards as they occur. In connection with the vesting of restricted stock awards, restricted stock units and performance stock units, shares of common stock may be delivered to the Company by employees to satisfy withholding tax obligations at the instruction of the employee award holders. These transactions when they occur are accounted for as stock repurchases by the Company, with the shares returned to treasury stock at a cost representing the payment by the Company of the tax obligations on behalf of the employees in lieu of shares for the vesting event. See Note 2221 to these consolidated financial statements regarding compensation expense associated with the Company’s equity incentive awards.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Pensions and Postretirement Benefits. The Company maintains qualified and non-qualifiedsponsors two funded defined benefit pension plans that cover employees in the United States and Canada, as well as certain employees in other international locations.employees. Benefits for a majority of the plans are generally based on average final pay and years of service. OurThe Company’s funding policy is to fund the minimum required contributions consistent with statutory requirements is based on actuarial computations utilizing the projected unit credit method of calculation. Not all defined benefit pension plans are funded. In the United States and Canada, theThe pension plans’ assets include equity and fixed income securities. In our other international locations, the pension plans’ assets include equity and fixed income securities, as well as insurance contracts. Certain assumptions are made regarding the occurrence of future events affecting pension costs, such as mortality, withdrawal, disablementdisablement and retirement, changes in compensation and benefits, and discount rates to reflect the time value of money.
The major elements in determining pension income and expense are pension liability discount rates and the expected return on plan assets. The Company references rates of return on high-quality,high quality, fixed income investments when estimating the discount rate, and the expected period over which payments will be made based upon historical experience. The long-term rate of return used to calculate the expected return on plan assets is the average rate of return estimated to be earned on invested funds for providing pension benefits.
In addition to pension benefits, the Company provides certain health care benefits for employees who meet age, participation and length of service requirements at retirement. The Company uses explicit assumptions using the best estimates available of the plan’s future experience. Principal actuarial assumptions include: discount rates, present value factors, retirement age, participation rates, mortality rates, cost trend rates, Medicare reimbursement rates and per capita claims cost by age. Current interest rates as of the measurement date are used for discount rates in present value calculations.
The Company also has defined contribution plans covering domestic employees of the Company and certain subsidiaries.
Contingencies. Certain conditions may exist as of the date the financial statements are issued, which may result in a loss to the Company but which will only be resolved when one or more future events occur or fail to occur. The Company’s management and its legal counsel assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. In assessing loss contingencies related to legal proceedings that are pending against the Company or unasserted claims that may result in such proceedings, the Company and legal counsel evaluate the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein. If the assessment of a contingency indicates that it is probable that a loss has been incurred and the amount of the liability can be estimated, then the estimated liability is accrued in the Company’s financial statements. If the assessment indicates that a loss contingency is not probable, but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, would be disclosed. Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case the nature of the guarantee would be disclosed, including the approximate term, how the guarantee arose, and the events or circumstances that would require the guarantor to perform under the guarantee.
Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Correction of Errors. Correction of errors have been made to the historical presentation of the consolidated financial statements and the notes accompanying the consolidated financial statements.
During the preparation of the condensed consolidated financial statements for the period ended June 30, 2023, the Company identified a presentation error in the components of accumulated other comprehensive income (loss) that originated in the year ended December 31, 2021 and remained uncorrected through the quarter ended March 31, 2023. As a result, the presentation of accumulated other comprehensive income (loss) in Note 7 was corrected by revising the opening balances as follows:
Defined benefit and other postretirement plansNet gain (loss) from hedging activitiesForeign currency translation
As reported, December 31, 2021$14,808 $2,254 $(22,854)
Correction to opening balances(12,640)(1,964)14,604 
Revised, December 31, 2021$2,168 $290 $(8,250)
As reported, December 31, 2022$12,132 $26,636 $(32,776)
Correction to opening balances(12,640)(1,964)14,604 
Revised, December 31, 2022$(508)$24,672 $(18,172)

This classification error within accumulated other comprehensive income (loss) did not impact total accumulated other comprehensive income (loss) for the periods included in these consolidated financial statements. Additionally, there was no impact on the consolidated statements of income and other comprehensive income (loss), consolidated balance sheets and consolidated statements of cash flows for the periods included in these consolidated financial statements. The Company assessed the materiality of this presentation error and concluded it was not material to the Company’s previously issued financial statements.
Net income for the year ended December 31, 2023 increased by $1,390 from adjustments for the Company’s interest rate cap agreements related to prior year interest expense amortization, $840 from adjustments related to prior year sales rebate reserves and $2,776 from adjustments for the Company’s equity in net income of affiliated companies related to revised Zeolyst International historical results offset by $1,301 from other adjustments. The $3,705 total net impact of these adjustment was not material to the consolidated financial statements for any prior quarterly or annual periods or the current annual period.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


3. New Accounting Standards:
Recently Adopted Accounting Standards Not Yet Adopted
In June 2016,December 2023, the Financial Accounting Standards Board (“FASB”) issued guidance that affects loans, trade receivables and any other financial assets that have the contractual right to receive cash. Under theimprove disclosures related to incomes taxes. This new guidance an entity isrequires public business entities to disaggregate information on the effective tax rate reconciliation and income taxes paid to provide greater transparency. Public business entities will be required to recognize expected credit losses rather than incurred losses for financial assets.provide additional information in specified categories related to effective tax rate reconciliation in tabular form and provide income taxes paid by jurisdictions, with further disaggregation needed if amounts exceed 5% of the total. The new guidance is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years.2024. The Company adoptedwill adopt the new guidance effective January 1, 2020, with no material impact to the Company’s consolidated financial position, results of operations or cash flows.2025 as required.
In August 2018,November 2023, the FASB issued guidance which modifies certain disclosure requirements over fair value measurements.to improve the disclosures related to public business entities reportable segments. This new guidance requires entities to provide information regarding significant segment expenses, especially those segment expenses that are regularly reported to the Company’s chief operating decision maker (the Company’s Chief Executive Officer), or CODM. The guidance is effective for fiscal years beginning after December 15, 2019, includingalso require public entities to disclose the nature, type and amounts of other segment items by reportable segment. Public business entities will also have to report all interim periods within that fiscal year. The Company adopted the new guidance effective January 1, 2020. The Company does not currently classify any of its derivative contractsannual disclosures about segments profits or restoration plan assets as Level 3 assets or liabilities, nor did the Company have any transfers amongst fair value levels during the year ended December 31, 2020. As a result, the guidance did not have an impact on Company’s the fair value measurement disclosures upon adoption.
In January 2017, the FASB issued guidance which eliminates the second step from the traditional two-step goodwill impairment test. Under current guidance, an entity performed the first step of the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount; if an impairment loss was indicated, the entity computed the implied fair value of goodwill to determine whether an impairment loss existed, and if so, the amount to recognize. Under the new guidance, an impairment loss is recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value (the Step 1 test), with no further testing required. Any impairment loss recognized is limited to the amount of goodwill allocated to the reporting unit. The new guidance is effective for public companieslosses that are Securitiesrequired by ASC 280 on an interim basis, including the significant segment expenses and Exchange Commission (“SEC”) registrants for fiscal years beginning after December 15, 2019. The Company adopted the new guidance on January 1, 2020, and applied the guidance prospectively to its goodwill impairment tests.
Accounting Standards Not Yet Adopted as of December 31, 2020
In December 2019, the FASB issued new guidance to simplify the accounting for income taxes by removing certain exceptions to the general principles and also simplification of areas such as franchise taxes, step-up in tax basis goodwill, separate entity financial statements and interim recognition of enactment of tax laws or rate changes.other segment items. The new guidance is effective for fiscal years beginning after December 15, 20202023, including interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company will adopt the new guidance effective January 1, 2024 as required.
In October 2023, the FASB issued guidance to amend either presentation or disclosure requirements related to fourteen subtopics in the FASB Accounting Standards Codification, that are currently in the SEC Regulation S-X or Regulation S-K. The new guidance was issued in response to the SEC’s ruling on disclosure simplification. For entities subject to existing SEC disclosure requirements, the effective date of each amendment of the topics will be the date that the SEC removes the related disclosure from Regulation S-X or Regulation S-K. The guidance must be applied prospectively, with no early adoption permitted for entities subject to those existing SEC disclosures. The Company is currently evaluating the impact of the new guidance as it pertains to the fourteen subtopics that would impact the business and will apply prospectively once in effect.
In August 2023, the FASB issued guidance for entities that meet the definition of a joint venture or a corporate joint venture, to adopt a new basis of accounting upon the formation of the joint venture. The new guidance requires the initial measurement of contributed net assets and liabilities at fair value on the formation date, recognition of goodwill for the difference between the fair value of the joint venture’s equity and net assets, and disclosures about the nature and financial impact of the transaction. The new guidance requires prospective application and is effective for all joint ventures that are formed on or after January 1, 2025, with early adoption permitted. Joint ventures that formed before January 1, 2025 may elect to retrospectively apply the new guidance. The Company will apply the guidance to any new joint ventures formed after the effective date.
Accounting Standards Recently Adopted
In October 2021, the FASB issued guidance that requires contract assets and contract liabilities acquired in a business combination to be recognized and measured by the acquirer on the acquisition date in accordance with revenue recognition guidance. Under current GAAP, contract assets and contract liabilities acquired in a business combination are recorded by the acquirer at fair value. The new guidance creates an exception to the general recognition and measurement principles related to business combinations, and is expected to result in the acquirer recognizing contract assets and liabilities at the same amounts recorded by the acquiree. The new guidance is effective for business combinations occurring during fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluatingadopted the impact of this new guidance on its consolidated financial statements.effective January 1, 2023 as required, and will apply the guidance prospectively to business combinations that occur after the adoption date.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


In March 2020 and January 2021, the FASB issued guidance to address certain accounting consequences from the anticipated transition from the use of the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. The new guidance contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance is optional and may be elected over time as reference rate reform activities occur. The time period through which the practical expedients provided in the guidance is available was set to expire on December 31, 2022, but was extended through December 31, 2024 by the FASB in December 2022. During the year ended December 31, 2020, the Company elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based on matches the index of the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. In February 2023, the Company amended the 2021 Term Loan Facility (as defined below), the ABL Facility (as defined below) and all existing interest rate caps agreements to replace LIBOR with a secured overnight financing rate (“SOFR”) as the benchmark interest rate. See Note 16 and Note 18 to these consolidated financial statements for further information. The Company continues to evaluateutilized the impact ofpractical expedients under the guidance with respect to the transition of its debt facilities and may apply other elections as applicable as additional changes in the market occur.interest rate hedging arrangements to SOFR, with no impact to its consolidated financial statements.

4. Divestitures:
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


4. Performance Materials Divestiture:
On December 14, 2020, the Company completed the sale of its Performance Materials business to Potters Buyer, LLC (the “Purchaser”), an affiliate of The Jordan Company, L.P., for a purchase price of $650,000. The net cash proceeds to the Company from the sale were $624,256 after certain customary adjustments for indebtedness, working capital and cash at the closing of the transaction. The Company classified the proceeds within net cash provided by (used in) investing activities – continuing operations in the consolidated statements of cash flows and used the net proceeds from the sale as well as cash on hand to pay down debt and issue a special cash dividend of $1.80/$1.80 per share to stockholders.
InDuring the year ended December 31, 2021, the Company incurred transaction costs of $2,054 and stock-based compensation expense of $1,970, and an associated tax benefit of $988 related to the Performance Materials divestiture, as well as a provision to return benefit of $5,429 related to the filing of the 2020 tax returns filed in the fourth quarter of 2020, the Performance Materials business met the criteria set forth in Accounting Standards Codification 205-20, Presentation of Financial Statements – Discontinued Operations (“ASC 205-20”), as the sale represents a strategic shift that will have a major effect on the Company’s operations and financial results. As a result, the Company’s consolidated financial statements for all periods presented reflect the Performance Materials business as a discontinued operation. The divested business was historically reported in the Performance Materials reportable segment, with the exception of certain Australian operations that were historically reported in the Performance Chemicals reportable segment.
The total transaction costs incurred in connection with the sale were approximately $13,161 for the year ended December 31, 2020. The Company recorded a pre-tax loss on sale of $70,878,2021, which is included in (loss) incomeloss from discontinued operations, net of tax in the Company’s consolidated statements of income for the year ended December 31, 2020. The following is a reconciliation of the loss recorded on the sale:

Net proceeds received from the sale of Performance Materials$624,256 
Transaction costs(13,161)
Net assets derecognized(681,973)
Loss on sale of Performance Materials$(70,878)

tax.
In connection withUpon the saleclose of Performance Materials and the related loss, as noted above, the Company has recognized a tax expense of $58,008 within discontinued operations.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table summarizes the results of discontinued operations for the periods presented:
Years ended
December 31,
202020192018
Sales$342,738 $373,686 $386,921 
Cost of goods sold251,917 281,566 308,679 
Selling, general and administrative expenses33,195 37,364 37,226 
Other operating expense, net18,289 14,462 13,023 
Operating income39,337 40,294 27,993 
Equity in net income from affiliated companies(37)(12)(42)
Interest expense, net (1)
16,210 24,453 22,965 
Other (income) expense, net(3,481)274 474 
Loss on sale of Performance Materials70,878 
(Loss) Income from discontinued operations before income tax(44,233)15,579 4,596 
Provision (benefit) for income taxes58,008 1,022 (4,646)
(Loss) income from discontinued operations, net of tax$(102,241)$14,557 $9,242 

(1)    The closing of the transaction triggered the Company’s obligation to provide partial repayment under both its Amended and Restated Term Loan Credit Agreement, dated May 4, 2016, and its New Term Loan Credit Agreement, dated as of July 22, 2020. As such, interest expense has been allocated to discontinued operations on the basis of the Company’s mandatory repayment of $275,787 of the Senior Secured Term Loan Facility due February 2027 and its mandatory payment of $188,722 of the New Senior Secured Term Loan Facility due February 2027.

Net income attributable to the noncontrolling interest related to the Performance Materials business, net of tax was $265, $154, and $213 for the years ended December 31, 2020, 2019, and 2018, respectively.

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table summarizes the assets and liabilities of discontinued operations at December 31, 2019:
December 31,
2019
ASSETS
Cash and cash equivalents$18,423 
Accounts receivables, net40,484 
Inventories, net143,323 
Prepaid and other current assets4,139 
Investments in affiliated companies115 
Property, plant and equipment, net175,614 
Goodwill286,227 
Other intangible assets, net121,113 
Right-of-use lease assets8,878 
Other long-term assets71,697 
Total assets held for sale$870,013 
LIABILITIES
Notes payable and current maturities of long-term debt$7,766 
Accounts payable30,267 
Operating lease liabilities—current3,326 
Accrued liabilities16,744 
Long-term debt, excluding current portion55,972 
Deferred income taxes8,612 
Operating lease liabilities—noncurrent5,248 
Other long-term liabilities17,366 
Total liabilities held for sale$145,301 

In connection with the transaction, the Company entered into a Transition Services Agreement with the Purchaser pursuant to which the Purchaser iswas receiving certain services to provide for the orderly transition of various functions and processes after the closing of the transaction. The services under the Transition Services Agreement include information technology, accounting, tax, financial services, human resources, facilities, and other administrative support services. These services are beingwere provided at cost for a period of 9nine months with 3 30-day extensions available.
following the close of the transaction.
The Company billed $3,314 under the Transition Services Agreement to the Purchaser during the year ended December 31, 2021. Those billings are included in selling, general and administrative expenses on the consolidated financial statements.
Additionally, in connection with the transaction, the Company entered into various supply agreements with the Purchaser. Cash flows associated with these transition services and supply agreements arewere not expected to be material to the Company’s results of operations.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Performance Chemicals
On February 28, 2021, the Company entered into a definitive agreement to sell its Performance Chemicals business to Sparta Aggregator L.P. (the “Buyer”), a partnership established by Koch Minerals & Trading, LLC and Cerberus Capital Management, L.P. for a purchase price of $1,100,000 subject to certain adjustments including indebtedness, cash, working capital and transaction expenses. The Company completed the sale of its Performance Chemicals business effective on August 1, 2021. The net cash proceeds to the Company from the sale were $978,449 after certain customary adjustments for indebtedness, working capital and cash at the closing of the transaction. The Company classified the proceeds within net cash provided by (used in) investing activities – continuing operations in the consolidated statements of cash flows and used the net proceeds from the sale as well as cash on hand to pay down debt and issue a special cash dividend of $3.20 per share to stockholders.
Prior to the closing of the transaction, the disposal group was tested for recoverability as of each of the balance sheet dates since meeting the discontinued operations criteria, and the Company recognized an estimated disposal loss of $109,584 during the year ended December 31, 2021, which was included in net loss from discontinued operations, net of tax on the consolidated statements of income for the respective periods.
During the year ended December 31, 2021, the Company incurred transaction costs of $35,402 and stock-based compensation expense of $5,691 in connection with the sale, which is included in loss from discontinued operations, net of tax. The final pre-tax loss on the sale of the Performance Chemicals business was $150,230, which is included in net (loss) income from discontinued operations, net of tax in the Company’s consolidated statements of income for the year ended December 31, 2021. The following is a reconciliation of the loss recorded on the sale:

Net proceeds received from the sale of the Performance Chemicals business$978,449 
Transaction costs(35,402)
Net assets derecognized(1,093,277)
Loss on sale of the Performance Chemicals business$(150,230)
In connection with the sale of the Performance Chemicals business and the related loss, as noted above, the Company has recognized a tax benefit of $37,255 within net loss from discontinued operations, net of tax on the consolidated statement of income for the year ended December 31, 2021. In March 2022, the Company made a payment to the buyer for $3,744, representing the final adjustments to the sale price. The Company classified the payment within net cash used in investing activities – continuing operations in the consolidated statements of cash flows.
During the year ended December 31, 2022, the Company recognized $3,902 of net income from discontinued operations, net of tax, related to the sale of the Performance Chemicals business for an income tax benefit upon the finalization of the Company’s U.S. income tax returns, partially offset by a tax indemnity claim resulting from the transaction.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table summarizes the results of discontinued operations related to Performance Chemicals for the periods presented:
Years ended
December 31,
20222021
Sales$— $389,870 
Cost of goods sold— 284,220 
Selling, general and administrative expenses— 29,856 
Goodwill impairment charge— 75,080 
Other operating expense, net(1)
2,409 14,765 
Loss on sale of the Performance Chemicals business— 150,230 
Operating loss(2,409)(164,281)
Equity in net income from affiliated companies— (111)
Interest expense, net (2)
— 10,730 
Other income, net— (6,210)
Loss from discontinued operations before income tax(2,409)(168,690)
Benefit for income taxes(6,311)(24,886)
Loss from discontinued operations, net of tax$3,902 $(143,804)
(1)     The Company reclassified transaction costs that were previously recorded to this line item and included those charges in the line item Loss on sale of the Performance Chemicals business during the year ended December 31, 2021.
(2)     Upon the close of the transaction, the Company used a portion of the net proceeds to repay a portion of its outstanding debt amounting to $526,363. Refer to Note 16 for additional details on the repayment of outstanding debt. Prior to the Company’s debt refinancing in June 2021, the Company’s outstanding term loan facilities had required refinancing of debt with repayment provisions. As a result, interest expense has been allocated to discontinued operations on the basis of the Company’s total repayment of $526,363.
Net income attributable to the noncontrolling interest related to the Performance Chemicals business, net of tax was $333 for the year ended December 31, 2021. Net loss attributable to Ecovyst Inc., related to the Performance Chemicals business, net of tax was $(144,137) for the year ended December 31, 2021.
Financing Obligation
In connection with the divestiture of the Performance Chemicals business, the Company entered into a five-year contract manufacturing agreement effective on August 2, 2021 with PQ Silicas UK Ltd., a subsidiary of the Buyer, related to a facility in Warrington, United Kingdom. Pursuant to this agreement, the Buyer will manufacture and sell advanced silica finished good products to the Company, which are finished good products sold within the Company’s Advanced Materials & Catalysts segment. Additionally, certain machinery, equipment, and other tangible personal property assets identified in the Agreement (“Catalyst Production Assets”) owned by the Buyer will be used exclusively in the manufacture of advanced silica products for the Company. The Company did not meet the requirements for a sale-leaseback transaction as described in Accounting Standards Codification 842-40, Leases - Sale-Leaseback Transactions. Under the failed sale-leaseback accounting model, the Company is deemed under GAAP to still own the Catalyst Production Assets, which the Company must continue to reflect in its consolidated balance sheet and depreciate over the
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


assets’ remaining useful lives. For the year ended December 31, 2021, the Company recorded a financing obligation of £11,648 (equivalent $16,005).
The table below presents the financing obligation assets and liabilities recognized on the consolidated balance sheet as of December 31, 2023 and 2022:
ClassificationDecember 31,
2023
December 31,
2022
Assets
Financing obligationProperty, plant and equipment, net$19,878 $20,084 
Total$19,878 $20,084 
Liabilities
Current:
Financing obligationAccrued liabilities$2,999 $2,770 
Noncurrent:
Financing obligationOther long-term liabilities4,927 7,532 
Total$7,926 $10,302 
Based on the estimated fair market value of the Catalyst Production Assets, the failed sale-leaseback accounting treatment resulted in an allocation of $16,005 of the cash proceeds from the sale to cash flows from financing activities in the consolidated statement of cash flows for the year ended December 31, 2021, due to the requirement to treat this portion of the proceeds as though it were the result of a financing obligation. The agreement has an initial term of five years, with an option to renew, as well as an “Option Bill of Sale” which provides for the transfer from the Buyer to the Company of the Catalyst Production Assets upon the Company’s exercise of a one-dollar purchase option.
Payments made to the Buyer under the contact manufacturing agreement were $8,416, $7,872 and $3,395 for the years ended December 31, 2023, 2022 and 2021, respectively. Included in these payments were $2,847, $2,692 and $1,435 of principal on the financing obligation for the years ended December 31, 2023, 2022 and 2021, respectively, and $266, $336 and $185 of interest on the financing obligation for the years ended December 31, 2023, 2022 and 2021, respectively. Principal payments are included in financing activities and interest payments are included in operating activities on the Company’s consolidated statement of cash flows.
The remaining lease term is 2.6 years with a weighted average discount rate of 2.86% as of December 31, 2023.

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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Maturities of the financing obligation as of December 31, 2023 are as follows:
YearFinance
Obligation
2024$3,186 
20253,186 
20261,860 
2027— 
2028— 
Thereafter— 
Total lease payments8,232 
Less: Interest306 
Total lease liabilities (1)
$7,926 
(1)     Refer to the table above regarding the Company’s classification of financing obligation in the Company’s consolidated balance sheet as of December 31, 2023.

In addition to the contract manufacturing agreement noted above, the Company also entered into certain supply agreements with the Buyer, as well as a Transition Services Agreement, pursuant to which the Buyer was receiving and performing certain services to provide for the orderly transition of various functions and processes after the closing of the transaction. The services under the Transition Services Agreement include information technology, accounting, tax, financial services, human resources, facilities, and other administrative support services. These services were provided for a period of six months, which ended in January 2022. Billings under the Transition Services Agreement to the Buyer during the years ended December 31, 2022 and 2021 were immaterial. Those billings are included in selling, general and administrative expenses on the consolidated financial statements for the years ended December 31, 2022 and 2021.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


5. Revenue from Contracts with Customers:
Revenue Recognition Model
As described in Note 2, the Company applies the five-step revenue recognition model to each contract with its customers.
Evidence of a contract between the Company and its customers may take the form of a master service agreement (“MSA”), a MSA in combination with an underlying purchase order, a combination of a pricing quote with an underlying purchase order or an individual purchase order received from a customer. The Company and certain of its customers enter into MSAs that establish the terms, including prices, under which orders to purchase goods may be placed. In cases where the MSA contains a distinct order for goods or contains an enforceable minimum quantity to be purchased by the customer, the Company considers the MSA to be evidence of a contract between the Company and its customer as the MSA creates enforceable rights and obligations. In cases where the MSA does not contain a distinct order for goods, the Company’s contract with a customer is the purchase order issued under the MSA. Customers of the Company may also negotiate orders via pricing quotes, which typically detail product pricing, delivery terms and payment information. When a customer procures goods under this method, the Company considers the combination of the pricing quote and the purchase order to create enforceable rights and obligations. Absent either a MSA or pricing quote, the Company considers an individual purchase order remitted by a customer to create enforceable rights and obligations.
The Company identifies a performance obligation in a contract for each promised good that is separately identifiable from other promises in the contract and for which the customer can benefit from the good. The majority of the Company’s contracts have a single performance obligation, which is the promise to transfer individual goods to the customer. Single performance obligations are satisfied according to the shipping terms noted within the MSA or purchase order. The Company has certain contracts that include multiple performance obligations under which the purchase price for each distinct performance obligation is defined in the contract. These distinct performance obligations may include stand-ready provisions, which are arrangements to provide a customer assurance that they will have access to output from the Company’s manufacturing facilities, or monthly reservations of capacity fees. The Company considers stand-ready provisions and reservation of capacity fees to be performance obligations satisfied over time. Revenues related to stand-ready provisions and reservation of capacity fees are recognized on a ratable basis throughout the contract term and billed to the customer on a monthly basis.
As described above, the Company’s MSAs with its customers may outline prices for individual products or contract provisions. MSAs in the Company’s Performance Chemicals and Refining Services segments may contain provisions whereby raw material costs are passed-through to the customer per the terms of their contract. The Company’s exposure to fluctuations in raw material prices is limited, as the majority of pass-through contract provisions reset based on fluctuations in the underlying raw material price. MSAs in the Company’s Refining Services segment also contain take-or-pay arrangements, whereby the customer would incur a penalty in the form of a volume shortfall fee. During the year ended December 31, 2020, some customers fell short of monthly orders due to the pandemic and take-or-pay were acted upon. In 2019, there have been no issues in which Refining Services customers failed to meet their contractual obligations. Revenue from product sales are recorded at the sales price, which includes estimates of variable consideration for which reserves are established and which result from discounts, returns or other allowances that are offered within contracts between the Company and its customers.
The Company recognizes revenues when performance obligations under the terms of a contract with its customer are satisfied, which generally occurs at a point in time by transferring control of a product to the customer. The Company determines the point in time when a customer obtains control of a product and the Company satisfies the performance obligation by considering factors including when the Company has a right to payment for the product, the customer has legal title to the product, the Company has transferred possession of the product, the customer has assumed the risks and rewards of ownership of the product and the customer has accepted the product. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. The Company does not have any significant payment terms as payment is received at, or shortly after, the point of sale.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Refining ServicesEcoservices
Contracts between the Company’s Refining ServicesEcoservices segment and its customers are typically evidenced by entering into a MSA which generally has a term in excess of one year. Though each MSA is unique, the terms may include performance obligations such as stand-ready provisions and minimum purchase requirements. Stand-ready provisions within these contracts are billed on a monthly basis, as the performance obligation resets on a monthly basis and does not carry-over to the following month. Certain of the Company’s Refining Services
MSAs contain minimum purchase requirements that expire within the calendar year. The Company reviews each contract with minimum purchase requirements to determine if the customer will meet the provisions within the current calendar year. During the years ended December 31, 2020 and 2019, there have been no issues in which Refining Services customers failed to meet their contractual obligations. Contracts within Refining ServicesEcoservices segment may also contain raw material pricing adjustments which are typically based on a commodity index or Refining Services’Ecoservices’ cost to acquire the commodity. The Company’s exposure to fluctuations in raw material prices is limited, as the majority of pass-through contract provisions reset based on fluctuations in the underlying raw material price. These raw material pass-through provisions reset on a periodic basis and prospectively adjust the raw material cost component of the goods sold to the customer. The Company accounts for the raw material costs on a prospective basis, as the price changes affect the future consideration of the sale of goods.
Stand-ready provisions within these contracts are billed on a monthly basis, as the performance obligation resets on a monthly basis and does not carry-over to the following month. Certain of the Company’s Ecoservices MSAs contain minimum purchase requirements that expire within the calendar year. The Company reviews each contract with minimum purchase requirements to determine if the customer will meet the provisions within the current calendar year. During the years ended December 31, 2023, 2022 and 2021, there have been no material issues in which Ecoservices customers failed to meet their contractual obligations.
Advanced Materials & Catalysts
The Company’s Advanced Materials & Catalysts segment sells customized products to its customers.customers through its Advanced Silicas product group. These customized products are reformulations of existing Advanced Materials & Catalysts products, tailored to meet individual customer specifications. Prior to entering into an arrangement, the Company will allow a customer to obtain a sample of goods to ensure that it meets their needs. The customer will enter into a long-term supply arrangement that outlines the specification of the products to be sold and contains terms and conditions under which purchase orders are issued. These supply arrangements typically have a duration from one to ten years. Although the duration of these supply arrangements are in excess of one year, a contract is formed between the Company and its customer upon receipt of a purchase order.
Performance Chemicals
Contracts between the Company’s Performance Chemicals segment and its customers are typically evidenced by entering into a supply arrangement that outlines the specification of the products to be sold and contains terms and conditions under which purchase orders are issued. Certain Performance Chemicals supply arrangements may contain raw material pricing adjustments which are typically based on a commodity index. These raw material pass-through provisions reset on a periodic basis and prospectively adjust the raw material cost component of the goods sold to the customer. The Company accounts for the raw material pass-through costs on a prospective basis, as the price changes affect the future consideration of the sale of goods.
Contract Assets and Liabilities
A contract asset is a right to consideration in exchange for goods that the Company has transferred to a customer when that right is conditional on something other than the passage of time. A contract liability exists when the Company receives consideration in advance of the fulfillment of its performance obligations. The Company has 0no contract assets or material contract liabilities recorded on its consolidated balance sheets as of December 31, 20202023 and 2019,2022, respectively.
The Company recognized a €10,216 ($11,486) contract liability associated with the sale of its magnesium silicate product line in July 2020, of which €9,202 ($11,318) of deferred revenue remained as of December 31, 2020. The Company recognized revenue of €1,014 ($1,197) related to this contract liability during the year ended December 31, 2020. Refer to Note 8 of these condensed consolidated financial statements for additional information related to the sale of the product line.
The Company recognized a $9,000 contract liability associated with the sale of a portion of its sulfate salts product line in June 2019, of which $2,070 and $6,450 of deferred revenue remained as of December 31, 2020 and 2019, respectively. The Company recognized revenue of $4,374 and $2,550 related to this contract liability during the year ended December 31, 2020 and 2019, respectively. Refer to Note 8 of these consolidated financial statements for additional information related to the sale of the product line.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Practical Expedients and Accounting Policy Elections
The Company has elected to use certain practical expedients and has made certain accounting policy elections as permitted under the new revenue recognition guidance. The majority of the Company’s contracts with customers are based on an individual purchase order or a MSA in combination with an individual purchase order; thus, the duration of these contracts are for one year or less. As described above, the Company’s performance obligations reset either monthly or at the end of the calendar year. The Company has made an accounting policy election to omit certain disclosures related to these performance obligations, as the initial term of the Company’s performance obligations are for a term of one year or less.
The Company uses an output method to recognize revenues related to performance obligations satisfied over time. These performance obligations, as described above, are satisfied within a calendar year. As such, the Company has elected to utilize the “as-invoiced” practical expedient, which permits the Company to recognize revenue in the amount to which it has a right to invoice the customer, provided that the amount corresponds directly with the value provided by the performance obligation as completed to date.
When the Company performs shipping and handling activities after the transfer of control to the customer (e.g. when control transfers prior to delivery), they are considered fulfillment activities as opposed to separate performance obligations, and the Company recognizes revenue upon the transfer of control to the customer. Accordingly, the costs
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


associated with these shipping and handling activities are accrued when the related revenue is recognized under the Company’s policy election. The Company does not utilize sales-based commissions plans, and as a result, the Company does not capitalize any costs which could be considered incremental costs of obtaining a contract. Sales, value added and other taxes the Company collects concurrent with revenue producing activities are excluded from revenues.
Disaggregated Revenue
The Company’s primary means of disaggregating revenues is by reportable segment,segments, which can be found in Note 1413 to these consolidated financial statements.
The Company’s portfolio of products areis integrated into a variety of end uses, which are described in the table below:below.
Key End UsesKey Products
IndustrialClean fuels, emission control & process chemicalsotherSilicate precursors for the tire industry
• Silica gels for surface coatings
Fuels & emission control• RefineryRefining hydrocracking catalysts
• Emission control catalystscatalyst supports
• Catalyst recycling servicessupports used in production of sustainable fuels such as renewable diesel
• Catalyst used in the production of sustainable aviation fuels
• Catalyst activation
• Aluminum sulfate solution
• Ammonium bisulfite solution
PackagingPolyethylene, polymers & engineered plastics• Catalysts for high-density polyethlenepolyethylene and chemicals syntheses
AntiblocksAntiblock for film packaging
• Catalyst for advanced recycling
Regeneration and treatment services• Sulfuric acid regeneration services
• Treatment services
Industrial, mining & automotive• Sulfuric acid for mining
• Sulfur derivatives for nylonindustrial production
Silicate precursorsSulfuric derivatives for catalysts used in plastics manufacturing
• Silicate for catalyst manufacturing
Consumer products• Silica gels for edible oil and beer clarification
• Precipitated silicas, silicates and zeolites for the dentifrice and dishwasher and
laundry detergent applications
Natural resources• Silicates for drilling muds
• Silicates and alum for water treatment mining
• Bleaching aids for papernylon production
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table disaggregatestables disaggregate the Company’s sales, by segment and end use,uses, for the years ended December 31, 2020, 20192023, 2022 and 2018:2021, respectively:
Year ended December 31, 2020
Refining ServicesCatalystsPerformance ChemicalsTotal
Industrial & process chemicals$70,648 $125 $279,296 $350,069 
Fuels & emission control(1)
225,042 225,042 
Packaging & engineered plastics38,772 93,882 47,451 180,105 
Consumer products235,792 235,792 
Natural resources67,451 52,165 119,616 
Total segment sales401,913 94,007 614,704 1,110,624 
Inter-segment sales eliminations(3,256)(5)(3,261)
Total$398,657 $94,002 $614,704 $1,107,363 
Year ended December 31, 2019
Refining ServicesCatalystsPerformance ChemicalsTotal
Industrial & process chemicals$80,661 $96 $299,651 $380,408 
Fuels & emission control(1)
252,294 252,294 
Packaging & engineered plastics48,056 85,571 51,725 185,352 
Consumer products260,495 260,495 
Natural resources66,070 58,692 124,762 
Total segment sales447,081 85,667 670,563 1,203,311 
Inter-segment sales eliminations(3,397)(3,397)
Total$443,684 $85,667 $670,563 $1,199,914 
Year ended December 31, 2018
Refining ServicesCatalystsPerformance ChemicalsTotal
Industrial & process chemicals$77,866 $86 $315,827 $393,779 
Fuels & emission control(1)
246,452 246,452 
Packaging & engineered plastics59,168 72,013 53,623 184,804 
Consumer products272,187 272,187 
Natural resources72,076 62,865 134,941 
Total segment sales455,562 72,099 704,502 1,232,163 
Inter-segment sales eliminations(3,237)(3,237)
Total$452,325 $72,099 $704,502 $1,228,926 

Year ended December 31, 2023
Ecoservices
Advanced Materials & Catalysts(2)
Total
Clean fuels, emission control & other$29,850 $— $29,850 
Polyethylene, polymers & engineered plastics— 106,273 106,273 
Regeneration and treatment services(1)
354,606 — 354,606 
Industrial, mining & automotive200,388 — 200,388 
Total segment sales$584,844 $106,273 $691,117 
Year ended December 31, 2022
Ecoservices
Advanced Materials & Catalysts(2)
Total
Clean fuels, emission control & other$28,966 $— $28,966 
Polyethylene, polymers & engineered plastics— 117,687 117,687 
Regeneration and treatment services(1)
342,645 — 342,645 
Industrial, mining & automotive330,861 — 330,861 
Total segment sales$702,472 $117,687 $820,159 
Year ended December 31, 2021
Ecoservices
Advanced Materials & Catalysts(2)
Total
Clean fuels, emission control & other$25,673 $— $25,673 
Polyethylene, polymers & engineered plastics— 110,688 110,688 
Regeneration and treatment services(1)
262,026 — 262,026 
Industrial, mining & automotive212,814 — 212,814 
Total segment sales$500,513 $110,688 $611,201 
(1)    As described in Note 1 to these consolidated financial statements, the Company experiences seasonal sales fluctuations to customers in the fuels & emission control end use.regeneration services product group.
(2)     Excludes the Company’s proportionate share of sales from the Zeolyst International and Zeolyst C.V. joint ventures (collectively, the “Zeolyst Joint Venture”) accounted for using the equity method (see Note 10 to these consolidated financial statements for further information).
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


6. Fair Value Measurements:
Fair values are based on quoted market prices when available. When market prices are not available, fair values are generally estimated using discounted cash flow analyses, incorporating current market inputs for similar financial instruments with comparable terms and credit quality. In instances where there is little or no market activity for the same or similar instruments, the Company estimates fair values using methods, models and assumptions that management believes a hypothetical market participant would use to determine a current transaction price. These valuation techniques involve some level of management estimation and judgment that becomes significant with increasingly complex instruments or pricing models. Where appropriate, adjustments are included to reflect the risk inherent in a particular methodology, model or input used.
The Company’s financial assets and liabilities carried at fair value have been classified based upon a fair value hierarchy. The hierarchy gives the highest ranking to fair values determined using unadjusted quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest ranking to fair values determined using methodologies and models with unobservable inputs (Level 3). The classification of an asset or a liability is based on the lowest level input that is significant to its measurement. For example, a Level 3 fair value measurement may include inputs that are both observable (Levels 1 and 2) and unobservable (Level 3). The levels of the fair value hierarchy are as follows:
•     Level 1—Values are unadjusted quoted prices for identical assets and liabilities in active markets accessible at the measurement date. Active markets provide pricing data for trades occurring at least weekly and include exchanges and dealer markets.
•    Level 2—Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices from those willing to trade in markets that are not active, or other inputs that are observable or can be corroborated by market data for the term of the instrument. Such inputs include market interest rates and volatilities, spreads and yield curves.
•    Level 3—Certain inputs are unobservable (supported by little or no market activity) and significant to the fair value measurement. Unobservable inputs reflect the Company’s best estimate of what hypothetical market participants would use to determine a transaction price for the asset or liability at the reporting date.
The following tables present information about the Company’s assets and liabilities that were measured at fair value on a recurring basis as of December 31, 2023 and 2022, and indicates the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value.
December 31,
2023
Quoted Prices in
Active Markets
(Level 1)
Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Derivative assets:
Interest rate caps (Note 18)$19,021 $— $19,021 $— 
Derivative liabilities:
Interest rate caps (Note 18)$2,496 $— $2,496 $— 
December 31,
2022
Quoted Prices in
Active Markets
(Level 1)
Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Derivative assets:
Interest rate caps (Note 18)$34,374 $— $34,374 $— 
Derivative liabilities:
Interest rate caps (Note 18)$2,071 $— $2,071 $— 

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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table presents information about the Company’s assets and liabilities that were measured at fair value on a recurring basis as of December 31, 2020 and 2019, and indicates the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value.
December 31,
2020
Quoted Prices in
Active Markets
(Level 1)
Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Assets:
Derivative contracts (Note 19)$3,249 $$3,249 $
Restoration plan assets3,724 3,724 00
Total$6,973 $3,724 $3,249 $
Liabilities:
Derivative contracts (Note 19)$34,466 $$34,466 $

December 31,
2019
Quoted Prices in
Active Markets
(Level 1)
Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Assets:
Derivative contracts (Note 19)$3,928 $$3,928 $
Restoration plan assets4,199 4,199 00
Total$8,127 $4,199 $3,928 $
Liabilities:
Derivative contracts (Note 19)$11,376 $$11,376 $
The following table presents information about the Company’s assets and liabilities that were measured at fair value on a non-recurring basis as of December 31, 2020 (there were no such assets or liabilities measured during the year ended December 31, 2019). The Company performed its annual impairment test on its goodwill on October 1, 2020, and determined that an impairment existed with respect to the Performance Chemicals segment. As a result, the Company recorded a non cash goodwill impairment charge of $260,000. Refer to Note 15 to these consolidated financial statements for a description of the valuation techniques the Company utilized to determine such fair value and for the results of the impairment testing procedures performed.
As of
December 31,
2020
Quoted Prices in
Active Markets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Total
Losses 
Assets:
Goodwill(1)
$717,738 $$717,738 $$(260,000)

(1) Goodwill with a carrying amount of $973,578 was written down to $717,738 as part of the Company’s annual impairment assessment on October 1, 2020. This resulted in an impairment charge of $260,000 on the consolidated statements of income.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Restoration plan assets
The fair values of the Company’s restoration plan assets are determined through quoted prices in active markets. Restoration plan assets are assets held in a Rabbi trust to fund the obligations of the Company’s defined benefit supplementary retirement plans and include various stock and fixed income mutual funds. See Note 21 to these consolidated financial statements regarding defined benefit supplementary retirement plans. The Company’s restoration plan assets are included in other long-term assets on its consolidated balance sheets. Gains and losses related to these investments are included in other expense, net in the Company’s consolidated statements of income. Unrealized gains associated with the underlying stock and fixed income mutual funds were $545 and $944 as of December 31, 2020 and 2019, respectively and an unrealized loss of $346 as of December 31, 2018.
Derivative contracts
Derivative assets and liabilities can be exchange-traded or traded over-the-counter (“OTC”). The Company generally values exchange-traded derivatives using models that calibrate to market transactions and eliminate timing differences between the closing price of the exchange-traded derivatives and their underlying instruments. OTC derivatives are valued using market transactions and other market evidence whenever possible, including market-based inputs to models, model calibration to market transactions, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency. When models are used, the selection of a particular model to value an OTC derivative depends on the contractual terms of, and specific risks inherent in, the instrument as well as the availability of pricing information in the market. The Company generally uses similar models to value similar instruments. Valuation models require a variety of inputs, including contractual terms, market prices and rates, forward curves, measures of volatility, and correlations of such inputs. For OTC derivatives that trade in liquid markets, such as forward contracts, swaps and options, model inputs can generally be corroborated by observable market data by correlation or other means, and model selection does not involve significant management judgment.
TheAs of December 31, 2023, the Company hashad interest rate caps and cross currency swaps that arewere fair valued using Level 2 inputs. In addition, the Company applies a credit valuation adjustment to reflect credit risk which is calculated based on credit default swaps. To the extent that the Company’s net exposure under a specific master agreement is an asset, the Company utilizes the counterparty’s default swap rate. If the net exposure under a specific master agreement is a liability, the Company utilizes a default swap rate comparable to PQ Group Holdings.Ecovyst. The credit valuation adjustment is added to the discounted fair value to reflect the exit price that a market participant would be willing to receive to assume the Company’s liabilities or that a market participant would be willing to pay for the Company’s assets.
7. Stockholders' Equity:
Accumulated Other Comprehensive Income (Loss)
The stockholders’ equity footnote disclosures have been revised to correct a presentation error in the components of accumulated other comprehensive income (loss) for the years ended December 31, 2022 and 2021. See Note 2 to these consolidated financial statements for further information on the reclassification and correction of errors in historical presentation.
The following table presents the components of accumulated other comprehensive income (loss), net of tax, as of December 31, 20202023 and 2019:2022:
December 31,
20202019
Amortization and unrealized gains (losses) on pension and postretirement plans, net of tax of $(1,649) and $(994)$5,278 $3,568 
Net changes in fair values of derivatives, net of tax of $549 and $604(660)(1,838)
Foreign currency translation adjustments, net of tax of $1,223 and $7,474(19,883)(17,078)
Accumulated other comprehensive loss$(15,265)$(15,348)
December 31,
20232022
Amortization and unrealized gains on pension and postretirement plans, net of tax of $(4,344) and $(4,078)$612 $(508)
Net changes in fair values of derivatives, net of tax of $(4,385) and $(9,057)12,546 24,672 
Foreign currency translation adjustments, net of tax of $8,177 and $8,177(14,116)(18,172)
Accumulated other comprehensive (loss) income$(958)$5,992 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table presents the tax effects of each component of other comprehensive income (loss) for the years ended December 31, 2020, 20192023, 2022 and 2018:2021:
Years ended
December 31,
202020192018
Pre-tax amountTax benefit/
(expense)
After-tax amountPre-tax amountTax benefit/
(expense)
After-tax amountPre-tax amountTax benefit/
(expense)
After-tax amount
Defined benefit and other postretirement plans:
Amortization of net gains and (losses)$2,824 $(712)$2,112 $2,970 $(423)$2,547 $(10,279)$2,380 $(7,899)
Amortization of prior service cost(232)58 (174)(156)39 (117)(78)19 (59)
Benefit plans, net2,592 (654)1,938 2,814 (384)2,430 (10,357)2,399 (7,958)
Net (loss) gain from hedging activities221 (55)166 (3,553)888 (2,665)(441)110 (331)
Foreign currency translation(1)
(11,268)(6,251)(17,519)20,539 2,350 22,889 (39,419)4,364 (35,055)
Other comprehensive income (loss)$(8,455)$(6,960)$(15,415)$19,800 $2,854 $22,654 $(50,217)$6,873 $(43,344)

Years ended
December 31,
202320222021
Pre-tax amountTax benefit/
(expense)
After-tax amountPre-tax amountTax benefit/
(expense)
After-tax amountPre-tax amountTax benefit/
(expense)
After-tax amount
Defined benefit and other postretirement plans:
Net gain (loss)$1,511 $(297)$1,214 $(3,344)$826 $(2,518)$12,976 $(3,272)$9,704 
Net prior service cost(125)31 (94)(210)52 (158)(232)58 (174)
Benefit plans, net1,386 (266)1,120 (3,554)878 (2,676)12,744 (3,214)9,530 
Net (loss) gain from hedging activities(17,312)5,186 (12,126)33,194 (8,812)24,382 3,885 (971)2,914 
Foreign currency translation(1)
4,056 — 4,056 (9,922)— (9,922)(9,202)6,954 (2,248)
Other comprehensive (loss) income$(11,870)$4,920 $(6,950)$19,718 $(7,934)$11,784 $7,427 $2,769 $10,196 
(1)     The income tax benefit or expense included in other comprehensive income for the year ended December 31, 2021 is attributed to the portion of foreign currency translation associated with the Company’s cross-currency interest rate swaps, for which the tax effect iswas based on the applicable U.S. deferred income tax rate. See Note 19 to these consolidated financial statements for information regardingIn March 2021, as a result of the Company’s cross currency interest ratePerformance Materials and Performance Chemicals divestitures, the Company settled its cross-currency swaps.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table presents the changechanges in accumulated other comprehensive income (loss), net of tax, by component for the years ended December 31, 20202023 and 2019:2022:
Defined benefit
and other
postretirement
plans 
Net gain (loss) from hedging activitiesForeign
currency
translation 
Total 
December 31, 2018$(546)$637 $(39,195)$(39,104)
Other comprehensive income (loss) before reclassifications2,497 (3,388)22,117 21,226 
Amounts reclassified from accumulated other comprehensive income(1)
(67)723 0656 
Net current period other comprehensive loss2,430 (2,665)22,117 21,882 
Tax Cuts and Jobs Act, reclassification from AOCI to retained earnings1,684 190 1,874 
December 31, 20193,568 (1,838)(17,078)(15,348)
Other comprehensive income (loss) before reclassifications1,850 125 (16,596)(14,621)
Amounts reclassified from accumulated other comprehensive income(1)
88 41 0129 
 Disposal of business(228)1,012 13,79114,575 
Net current period other comprehensive income (loss)1,7101,178 (2,805)83
December 31, 2020$5,278 $(660)$(19,883)$(15,265)

Defined benefit
and other
postretirement
plans 
Net gain (loss) from hedging activitiesForeign
currency
translation 
Total 
December 31, 2021$2,168 $290 $(8,250)$(5,792)
Other comprehensive income (loss) before reclassifications(2,832)23,868 (9,922)11,114 
Amounts reclassified from accumulated other comprehensive income(1)
156 514 — 670 
Net current period other comprehensive income (loss)(2,676)24,382 (9,922)11,784 
December 31, 2022(508)24,672 (18,172)5,992 
Other comprehensive income (loss) before reclassifications1,085 5,031 4,056 10,172 
Amounts reclassified from accumulated other comprehensive income(1)
35 (17,157)(17,122)
Net current period other comprehensive income (loss)1,120 (12,126)4,056 (6,950)
December 31, 2023$612 $12,546 $(14,116)$(958)
(1)    See the following table for details about these reclassifications. Amounts in parentheses indicate debits.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table presents the reclassifications out of accumulated other comprehensive income for the years ended December 31, 20202023 and 2019.2022.
Details about Accumulated Other
Comprehensive Income Components
Amount Reclassified from Accumulated Other Comprehensive Income(1)
Affected Line Item in the
Statements of Income
Years ended
December 31,
20202019
Amortization of defined benefit and other postretirement plans:
Prior service credit (cost)$119 $133 
Other income (expense)(2)
Actuarial gains (losses)(232)(21)
Other income (expense)(2)
(113)112 Total before tax
25 (45)Tax benefit (expense)
$(88)$67 Net of tax
Gains and losses on cash flow hedges:
Interest rate caps$(54)$(625)Interest expense
Natural gas swaps(335)Cost of goods sold
(54)(960)Total before tax
13 237 Tax benefit
$(41)$(723)Net of tax
Total reclassifications for the period$(129)$(656)Net of tax

Details about Accumulated Other
Comprehensive Income Components
Amount Reclassified from Accumulated Other Comprehensive Income(1)
Affected Line Item in the
Statements of Income
Years ended
December 31,
20232022
Amortization of defined benefit and other postretirement plans:
Net prior service credit$(125)$(210)
Other (expense) income(2)
Net loss59 
Other (expense) income(2)
(66)(207)Total before tax
31 51 Tax benefit
$(35)$(156)Net of tax
Gains and losses on cash flow hedges:
Interest rate caps$22,731 $(683)Interest expense
(5,574)169 Tax benefit (expense)
17,157 (514)Net of tax
Total reclassifications for the period$17,122 $(670)Net of tax
(1)    Amounts in parentheses indicate debits to profit/loss.
(2)    These accumulated other comprehensive income (loss) components are components of net periodic pension and other postretirement cost (see Note 2120 to these consolidated financial statements for additional details)further information).
Treasury Stock Repurchases
2020 Stock Repurchase Program
The Company records repurchases of its common stock for treasury at cost. Upon the reissuance of the Company’s common stock from treasury, differences between the proceeds from reissuance and the average cost of the treasury stock are credited or charged to capital in excess of par value to the extent of prior credits related to the reissuance of treasury stock. If no such credits exist, the differences are charged to retained earnings.
On March 12, 2020, the Company announced plansCompany’s Board of Directors (the “Board”) approved a plan to purchase up to $50,000 of PQ Group Holdings Inc.the Company’s common stock under a stock repurchase program approved by the Company’s Board of Directors. TheBoard. Under the plan, the Company maycould repurchase shares from time to time for cash in open market transactions or in privately negotiated transactions in accordance with applicable federal securities laws. The Company will determinedetermined the timing and the amount of any repurchases based on its evaluation of market conditions, share price and other factors. The stock repurchase program is valid untilexpired in March 2022.
From2022, with no repurchases made in 2022 through the announcement dateexpiration of the program, throughnor during the year ended December 31, 2020,2021.
2022 Stock Repurchase Program
On April 27, 2022, the Board approved a stock repurchase program that authorized the Company to purchase up to $450,000 of the Company’s common stock over the four-year period from the date of approval. Under the plan, the Company is permitted to repurchase shares from time to time for cash in open market transactions or in privately negotiated transactions in accordance with applicable federal securities laws, with the Company determining the timing and the amount of any repurchases based on its evaluation of market conditions, share price and other factors.
During the year ended December 31, 2023, the Company repurchased 211,700541,494 shares on the open market at an average price of $9.73$9.85 per share, for a total of $2,059. $5,333, excluding brokerage commissions and accrued excise tax. Additionally, in connection with secondary offerings of the Company’s common stock in March and May 2023, the Company repurchased 7,000,000 shares of its common stock sold in the offerings from the underwriters at a weighted average price of $10.48 per share concurrently with the closing of the offerings, for a total of $73,373, excluding accrued excise tax. As of December 31, 2020, $47,9412023, $234,592 was available for additional share repurchases under the program.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The Company accrued excise tax of $638 related to these repurchases, net of shares issued under the Company’s equity incentive program during the year ended December 31, 2023 (see Note 19 to these consolidated financial statements for further information). This amount is included in accrued liabilities in the consolidated balance sheet and is treated by the Company as a cost of the treasury stock transactions in equity.
During the year ended December 31, 2022, the Company repurchased 1,970,763 shares on the open market at an average price of $9.82 per share, for a total of $19,356, excluding brokerage commissions. Additionally, in connection with secondary offerings of the Company’s common stock in August and November 2022, the Company repurchased 14,500,000 shares of its common stock sold in the offerings from underwriters at a weighted average price of $8.09 per share concurrently with the closing of the offerings, for a total of $117,346.
Tax Withholdings on Equity Award Vesting
In connection with the vesting of restricted stock awards, restricted stock units and performance stock units, shares of common stock may be delivered to the Company by employees to satisfy withholding tax obligations at the instruction of the employee award holders. These transactions, when they occur, are accounted for as stock repurchases by the Company, with the shares returned to treasury stock at a cost representing the payment by the Company of the tax obligations on behalf of the employees in lieu of shares for the vesting unit. There were 315,635 and 32,058 shares delivered to the Company to cover tax payments for the year ended December 31, 2023 and2022, respectively and the fair value of those shares withheld to cover tax payments were $3,372 and $332 for the years ended December 31, 2023 and 2022, respectively.
Dividends Paid
On December 14, 2020,August 4, 2021, the Company���sCompany’s Board of Directors declared a special cash dividend of $1.80$3.20 per share, using after tax cash proceeds and cash on hand from the sale of the Performance MaterialsChemicals business. The dividend was paid on August 23, 2021 to ourthe Company’s stockholders of record at the close of business on December 21, 2020. Refer toAugust 12, 2021. See Note 4 of these consolidated financial statements for additional details.further information.
8. Dispositions:Other Operating Expense, Net:
Magnesium Silicate Product Line Sale
On July 1, 2020, the Company completed the saleA summary of its magnesium silicate product line within its Performance Chemicals segment for $18,000 and recorded a pre-tax gain on sale of $4,958. The transaction was recorded as an asset sale, with the gain on disposition included in the other operating expense, net line item in the Company’s condensed consolidated statement of income foris as follows:
Years ended
December 31,
202320222021
Amortization expense$10,565 $10,562 $10,321 
Transaction and other related costs2,954 6,988 2,268 
Restructuring, integration and business optimization costs (1)
2,655 11,566 3,866 
Net loss on asset disposals4,137 3,594 5,666 
Other, net1,789 2,201 2,152 
$22,100 $34,911 $24,273 
(1)    During the year ended December 31, 2020 (see Note 92022, the Company’s results were impacted by costs associated with severance charges for certain former executives and employees. The severance charges were not related to these condensed consolidated financial statements for additional details). At the time of disposition, the carrying valuea specific restructuring plan of the Company’s inventory related to this non-core product line was $1,556. The Company, allocated $11,486 of the consideration received to a contract liability for deferred revenue.
Concurrentbut rather were incurred primarily in connection with the product line sale, the Company entered into a tolling arrangement with the buyerleadership transition in which the Company agreed to manufacture the product for the buyer through June 2025. The Company deferred $11,486 of the $18,000 consideration received as a liability, to be recognized as the Company executes its performance obligations over the term of the contractual agreement with the buyer.
Sulfate Salts Product Line Sale
On June 28, 2019, the Company completed the sale of a portion of its sulfate salts product line within its Performance Chemicals segment for $28,000, with net cash consideration of $27,658 and a pre-tax gain on sale of $11,518. The transaction was recorded as an asset sale, with the gain on disposition included in the other operating expense, net line item in the Company’s consolidated statement of income for the year ended December 31, 2019 (see Note 9 to these consolidated financial statements for additional details). At the time of disposition, the carrying value of the Company’s net working capital related to this non-core product line was $4,215. In addition to the net working capital sold as part of the transaction, the Company also derecognized $3,276 of property, plant and equipment related to the product line and allocated $9,000 of the consideration received to a liability for deferred revenue.
Concurrent with the product line sale, the Company entered into a tolling arrangement with the buyer in which the Company will use its existing manufacturing facilities for the product line to manufacture the product for the buyer, the majority of which runs until June 2021. The Company deferred $9,000 of the consideration received as a liability, to be recognized as the Company executes its performance obligations over the term of the contractual agreement with the buyer. Additionally, the Company concluded that an embedded lease arrangement exists as a result of the combination of the sale and tolling agreements. Given the ability of the buyer to control substantially all of the output of the facilitiesApril 2022 and the existenceretirement of bargain purchase options on the manufacturing assets, the Company determined that the buyer is effectively leasing the assets from the Company and derecognized the associated property, plant and equipment under a sales-type leasing arrangement. The gain on the sale of fixed assets is included as part of the Company’s overall gain on sale related to the transaction, with the Company’s net investment in the leased assets having been settled as part of the consideration received in the transaction with no additional future cash flows to be recognized on the lease.
Sale of Assets
On December 19, 2019, the Company completed the sale of real property for $19,100, with net cash consideration of $17,100 and a holdback receivable to be settled by December 2021 of $1,000, and recorded a pre-tax gain on sale of $7,150. On December 30, 2019, the Company entered into a leaseback arrangement with the buyer-lessor which expires in December 2021. The Company recorded the asset sale separately from the leaseback, with the gain on disposition included in the other operating expense, net line item in the Company’s consolidated statement of income for the year ended December 31, 2019 (see Note 9 to these consolidated financial statements for additional details).several executives.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


At the time of disposition, the Company derecognized $10,735 of property, plant and equipment and accounted for the leased asset as an operating lease. A right-of-use lease asset of $3,588 and lease liability of $3,524 was recorded at December 31, 2020, based on the present value of the lease payments and future demolition costs associated with the lease.
9. Other Operating Expense, Net:
A summary of other operating expense, net is as follows:
Years ended
December 31,
202020192018
Amortization expense$26,923 $26,888 $27,258 
Transaction and other related costs(1)
8,274 407 491 
Restructuring, integration and business optimization costs(2)
13,028 2,692 5,819 
Net (gain) loss on asset disposals(3)
(134)(13,207)4,190 
Insurance recoveries(4)
(5,480)
Write-off of long-term supply contract obligation (Note 25)(20,612)
Environmental related costs1,092 2,522 638 
Other, net1,803 2,076 4,123 
$50,986 $21,378 $16,427 

(1)Transaction and other related costs during the year ended December 31, 2020 primarily related to costs incurred from the strategic review of the Company’s Performance Chemicals business. Refer to Note 29 of these consolidated financial statements for additional details.
(2)During the year ended December 31, 2020, the Company’s results were impacted by costs associated with the execution of the Company’s strategic initiatives. The costs incurred during the year ended December 31, 2020 primarily relate to demolition and decommissioning costs related to various asset sales. The costs incurred during the years ended December 31, 2019 and 2018 relate to severance charges for certain executives and employees, transition/duplicate staffing, professional fees and other expenses related to the Company’s organization changes.
(3)During the year ended December 31, 2020, the Company recognized a gain of $4,958 related to the sale of a product line and a gain of $672 related to the sale of its interest in the Quaker Holdings joint venture, which were offset by fixed asset write-offs. During the year ended December 31, 2019, the Company recognized a gain of $11,518 related to the sale of a product line and a gain of $7,150 related to a property sale, which were partially offset by fixed asset write-offs. Refer to Note 8 of these consolidated financial statements for additional details.
(4)During the year ended December 31, 2018, the Company recognized $6,450 of insurance recoveries in its consolidated statement of income related to the Company’s claim for losses sustained during Hurricane Harvey in August 2017. For the year ended December 31, 2018, $5,480 was recorded as a gain in other operating expense, net, as reimbursement of expenses, $207 was recorded as a gain in net loss on asset disposals within other operating expense, net, for the Company’s previously recognized property losses, and $763 represented recoveries in excess of the Company’s property losses which was recorded as a non-operating gain in other expense, net, in the Company’s consolidated statement of income.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


10. Inventories, Net:
Inventories, net are classified and valued as follows:
December 31,
20202019
December 31,December 31,
202320232022
Finished products and work in processFinished products and work in process$102,388 $106,980 
Raw materialsRaw materials25,04830,642 
$127,436 $137,622 
$
Valued at lower of cost or market:Valued at lower of cost or market:
Valued at lower of cost or market:
Valued at lower of cost or market:
LIFO basis
LIFO basis
LIFO basisLIFO basis$55,283 $60,190 
Valued at lower of cost and net realizable value:Valued at lower of cost and net realizable value:
FIFO or average cost basisFIFO or average cost basis72,153 77,432 
FIFO or average cost basis
FIFO or average cost basis
$
$127,436 $137,622 
The domestic inventory acquired as part of a previous business combination is valued based on the LIFO method. Therefore, the fair value allocated to the acquired LIFO inventory was treated as the new base inventory value. If inventories valued under the LIFO basis had been valued using the FIFO method, inventories would have been $4,255$3,529 and $7,002 lower and $974 higher than reported as of December 31, 20202023 and 2019,2022, respectively, driven primarily by the purchase accounting fair value step-up of the LIFO inventory base value associated with the business combination.
11.10. Investments in Affiliated Companies:
The Company accounts for investments in affiliated companies under the equity method. Affiliated companies accounted for on the equity methodbasis as of December 31, 20202023 are as follows:
Company Country Percent
Ownership 
PQ Silicates Ltd.Taiwan50%
Zeolyst InternationalUSA50%
Zeolyst C.V.Netherlands50%
Following is summarized information of the combined investments(1):
December 31, December 31,
20202019 20232022
Current assetsCurrent assets$219,002 $248,685 
Noncurrent assetsNoncurrent assets254,416 256,104 
Current liabilitiesCurrent liabilities66,423 52,638 
Noncurrent liabilitiesNoncurrent liabilities36,788 5,950 

Years ended
December 31,
202020192018
Sales$278,414 $380,381 $351,839 
Gross profit89,471 144,828 126,505 
Operating income54,010 106,195 88,294 
Net income55,722 107,112 88,411 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)



December 31,
202320222021
Sales$345,002 $306,511 $296,416 
Gross profit107,865 105,693 101,069 
Operating income70,783 67,169 66,978 
Net income74,053 68,255 68,433 
(1)    Summarized information of the combined investments is presented at 100%; the Company’s share of the net assets and net income of affiliates is calculated based on the percent ownership specified in the table above.
In March 2020, the Company sold its 49% interest in the Quaker Holdings joint venture to a third party. Prior to the Company’s disposition of its shares in the joint venture, the Company received a liquidating dividend of $729 as well as $1,032 for the sale of the joint venture shares, which was included in the proceeds from sale of investment within the investing activities section of the Company’s consolidated statement of cash flows.
The Company’s investments in affiliated companies balance as of December 31, 20202023 and 20192022 includes net purchase accounting fair value adjustments of $243,899$224,614 and $250,532,$231,017, respectively, related to a prior business combination, consisting primarily of goodwill and intangible assets such as customer relationships, technical know-how and trade names. Consolidated equity in net income from affiliates is net of $6,634, $7,534$6,403, $6,402 and $6,634$6,480 of amortization expense related to purchase accounting fair value adjustments for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
The following table summarizes the activity related to the Company’s investments in affiliated companies balance on the consolidated balance sheets:
Years ended
December 31,
20202019
Balance at beginning of period$472,814 $468,055 
Equity in net income of affiliated companies27,871 53,556 
Charges related to purchase accounting fair value adjustments(6,634)(7,534)
Dividends received(40,989)(40,073)
Foreign currency translation adjustments5,390 (1,190)
Balance at end of period$458,452 $472,814 

December 31,
20232022
Balance at beginning of period$436,013 $446,074 
Equity in net income of affiliated companies37,027 34,128 
Charges related to purchase accounting fair value adjustments(6,403)(6,402)
Dividends received(28,000)(35,000)
Foreign currency translation adjustments1,561 (2,787)
Balance at end of period$440,198 $436,013 
The Company had net receivables due from affiliates of $3,814$3,231 and $3,586$3,861 as of December 31, 20202023 and 2019,2022, respectively, which are included in prepaid and other current assets. Net receivablesThe Company had payables from affiliates of $1,351 and $322 as of December 31, 2023 and 2022, respectively, which is included in accrued liabilities. Receivables and payables due from affiliates are generally non-trade receivables. non-trade.
Sales to affiliates were $9,144, $4,181$2,457, $5,915 and $2,823$3,643 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. The Company did 0t purchase goodsPurchases from affiliates were immaterial during the years ended December 31, 2020, 20192023, 2022 and 2018.2021.
On December 18, 2013, PQ Holdingsthe Company and its joint venture, Zeolyst International, entered into a ten year real estate tax abatement agreement with the Unified Government of Wyandotte County in Kansas City, Kansas. The agreement utilizes an Industrial Revenue Bond (“IRB”) financing structure to achieve a 75% real estate tax abatement on the value of the improvements that were constructed during the expansion of PQ Holdingsthe Company and Zeolyst International’s facilities at the jointly-operated Kansas City, Kansas plant. A similar tax abatement agreement has been executed on an annual basis since December 18, 2013 with respect to additional plant expansions during those years.
During the year ended December 31, 2019, the original IRB financing structure from December 2013 was exhausted. In order to fund future plant expansions, the Company entered into an additional IRB financing structure on December 19, 2019 with similar terms and conditions, which also provides for 75% real estate tax abatement on the value of future improvements. The financing obligations and the industrial bonds receivable have been presented net, as the financing obligations and the industrial bonds meet the criteria for right of set off conditions under GAAP.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


12.11. Property, Plant and Equipment:
A summary of property, plant and equipment, at cost, and related accumulated depreciation is as follows:
December 31,
20202019
December 31,December 31,
202320232022
LandLand$158,517 $160,321 
Buildings168,204 160,653 
Buildings and improvements
Machinery and equipmentMachinery and equipment1,097,949 1,027,775 
Construction in progressConstruction in progress78,641 76,242 
1,044,202
Less: accumulated depreciation
$
1,503,311 1,424,991 
Less: accumulated depreciation(520,076)(413,835)
$983,235 $1,011,156 
Depreciation expense was $114,641, $111,032$70,551, $65,121 and $111,491$65,955 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
13.12. Leases:
Operating lease costs of $16,817$10,828, $10,318 and $15,125$9,825 are included in cost of goods sold and in selling, general and administrative expenses on the consolidated statements of income for the years ended December 31, 2023, 2022 and 2021, respectively. Finance lease costs of $77, $36 and $37 are included in cost of goods sold and in selling, general, and administrative expenses on the consolidated statement of income for the year ended December 31, 2020 and 2019, respectively. Finance lease, short-term lease and variable lease costs for the years ended December 31, 20202023 2022 and 2019 were not material.2021, respectively. Lease income is not material to the results of operations for the years ended December 31, 20202023, 2022 and 2019.
The Company entered into a sale-leaseback transaction during the year ended December 31, 2019. Disclosures related to this transaction can be found within Note 8 to these consolidated financial statements.2021, respectively.
The table below presents the operating and finance leases right-of-use lease assets and lease liabilities recognized on the consolidated balance sheet as of December 31, 20202023 and 2019:2022:
ClassificationDecember 31,
2020
December 31,
2019
Assets
Operating lease assetsRight-of-use lease assets$48,239 $48,417 
Finance lease assetsProperty, plant and equipment, net1,752 1,556 
Total leased assets$49,991 $49,973 
Liabilities
Current:
Operating lease liabilitiesOperating lease liabilities—current$15,194 $11,857 
Finance lease liabilitiesAccrued liabilities262 185 
Noncurrent:
Operating lease liabilitiesOperating lease liabilities—noncurrent32,019 34,908 
Finance lease liabilitiesOther long-term liabilities366 315 
Total lease liabilities$47,841 $47,265 
ClassificationDecember 31,
2023
December 31,
2022
Assets
Operating leaseRight-of-use lease assets$24,281 $28,265 
Finance leaseProperty, plant and equipment, net1,269 1,422 
Total leased assets$25,550 $29,687 
Liabilities
Current:
Operating leaseOperating lease liabilities—current$8,193 $8,155 
Finance leaseAccrued liabilities70 86 
Noncurrent:
Operating leaseOperating lease liabilities—noncurrent16,030 20,021 
Finance leaseOther long-term liabilities28 101 
Total leased liabilities$24,321 $28,363 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The Company’s weighted average remaining lease term and weighted average discount rate for operating and financing leases as of December 31, 20202023 and 2022 are as follows:
December 31,
2020
December 31,
2019
December 31,
2023
December 31,
2023
December 31,
2022
Weighted average remaining lease term (in years):Weighted average remaining lease term (in years):
Operating leases
Operating leases
Operating leasesOperating leases5.185.513.964.45
Finance leasesFinance leases2.452.65Finance leases1.332.29
Weighted average discount rate:Weighted average discount rate:
Weighted average discount rate:
Weighted average discount rate:
Operating leases
Operating leases
Operating leasesOperating leases5.55 %5.66 %5.95 %5.24 %
Finance leasesFinance leases4.67 %4.67 %Finance leases3.91 %3.10 %
Maturities of lease liabilities as of December 31, 20202023 are as follows:
YearOperating
Leases
Finance
Leases
2021$17,363 $406 
202210,707 161 
20238,655 40 
20246,404 35 
20253,917 
Thereafter7,785 
Total lease payments54,831 650 
Less: Interest(7,618)(22)
Total lease liabilities$47,213 $628 

YearOperating
Leases
Finance
Leases
2024$9,539 $78 
20256,916 23 
20265,068 — 
20273,672 — 
20281,154 — 
Thereafter1,014 — 
Total lease payments27,363 101 
Less: Interest(3,140)(3)
Total lease liabilities (1)
$24,223 $98 
(1)     Refer to the above table regarding the Company’s right-of-use lease assets and lease liabilities for the presentationclassification of the lease liabilities in the Company’s consolidated balance sheet atas of December 31, 2020.2023.
The following table presents other information related to the Company’s operating and finance leases and the impact on the Company’s consolidated statement of cash flows:
Years ended
December 31,
Years ended
December 31,
202320232022
Cash paid for amounts included in the measurement of lease liabilities:
Payments on operating leases included in operating cash flows
Payments on operating leases included in operating cash flows
Payments on operating leases included in operating cash flows
Interest payments under finance leases included in operating cash flows
Principal payments under finance leases included in financing cash flows
Right-of-use assets obtained in exchange for new lease liabilities (non-cash):
Right-of-use assets obtained in exchange for new lease liabilities (non-cash):
Right-of-use assets obtained in exchange for new lease liabilities (non-cash):
Operating leases
Operating leases
Operating leases
Years ended
December 31,
20202019
Cash paid for amounts included in the measurement of lease liabilities:
Payments on operating leases included in operating cash flows$16,135 $14,814 
Interest payments under finance lease obligations included in operating cash flows21 26 
Principal payments under finance lease obligations included in financing cash flows209 177 
Right-of-use assets obtained in exchange for new lease liabilities (non-cash):
Operating leases14,439 8,798 
Finance leases353 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Under prior lease guidance, total rent expense related to the Company’s various leasing arrangements was $20,594 for the year ended December 31, 2018. Rent expense for the year ended December 31, 2018 included both lease and non-lease costs related to leasing arrangements in place during those years.
14.13. Reportable Segments:
The Company has organized its business around 3two operating segments based on the review of discrete financial results for each of the operating segments by the Company’s chief operating decision maker (the Company’s Chairman of the Board, President and Chief Executive Officer), or CODM, for performance assessment and resource allocation purposes. Each of the Company’s operating segments represents a reportable segment under GAAP. The Company’s reportable segments are organized based on the nature and economic characteristics of the Company’s products. The Company’s 3two reportable segments are as follows: (1) Refining ServicesEcoservices provides sulfuric acid recycling to the North American refining industry;industry for the production of alkylate and provides on-purpose virgin sulfuric acid for water treatment, mining, and industrial applications; and (2) Advanced Materials & Catalysts serves the packagingpolymers and engineered plastics and the global refining, petrochemical and emissions control industries; and (3) Performance Chemicals supplies diverse product end uses, including personal and industrial cleaning products, fuel-efficient tires, surface coatings, and food and beverage products.industries.
The Advanced Materials & Catalysts segment includes equity in net income from Zeolyst International and Zeolyst C.V. (collectively, the “Zeolyst Joint Venture”), each of which are 50/50 joint ventures with CRI Zeolites Inc. (a wholly-owned subsidiary of Royal Dutch Shell). The Zeolyst Joint Venture is accounted for using the equity method in the Company’s consolidated financial statements (see Note 1110 to these consolidated financial statements for further information). Company management evaluates the Advanced Materials & Catalysts segment’s performance, including the Zeolyst Joint Venture, on a proportionate consolidation basis. Accordingly, the revenues and expenses used to compute the Advanced Materials & Catalysts segment’s adjusted earnings before interest, income taxes, depreciation and amortization (“Adjusted EBITDA”) include the Zeolyst Joint Venture’s results of operations on a proportionate basis based on the Company’s 50% ownership level. Since the Company uses the equity method of accounting for the Zeolyst Joint Venture, these items are eliminated when reconciling to the Company’s consolidated results of operations.
The Company’s management evaluates the operating results of each reportable segment based upon Adjusted EBITDA. Adjusted EBITDA consists of EBITDA, which is a measure defined as net income before interest, income taxes, depreciation and amortization (each of which is included in the Company’s consolidated statements of income), and adjusted for certain items as discussed below. Corporate overhead costs are not included in segment results as they relate to corporate-based responsibilities and decisions and are not included in the internal measures of segment operating performance used by the Company to measure the underlying performance of the operating segments.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Summarized financial information for the Company’s reportable segments is shown in the following table:
Years ended
December 31,
202020192018
Sales:
Refining Services$401,913 $447,081 $455,562 
Catalysts(1)
94,007 85,667 72,099 
Performance Chemicals614,704 670,563 704,502 
Eliminations(2)
(3,261)(3,397)(3,237)
Total$1,107,363 $1,199,914 $1,228,926 
Segment Adjusted EBITDA:(3)
Refining Services$157,198 $175,640 $176,499 
Catalysts(4)
74,504 107,808 81,067 
Performance Chemicals142,372 151,547 168,196 
Total Segment Adjusted EBITDA(5)
$374,074 $434,995 $425,762 

Years ended
December 31,
202320222021
Sales:
Ecoservices$584,845 $702,472 $500,513 
Advanced Materials & Catalysts(1)
106,273 117,687 110,688 
Total$691,118 $820,159 $611,201 
Adjusted EBITDA:(2)
Ecoservices$199,966 $227,760 $177,672 
Advanced Materials & Catalysts(3)
81,892 77,978 88,028 
Adjusted EBITDA from reportable segments$281,858 $305,738 $265,700 
(1)Excludes the Company’s proportionate share of sales from the Zeolyst Joint Venture accounted for using the equity method. The proportionate share of sales excluded is $128,623, $170,338$156,481, $132,588 and $156,687$131,332 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
(2)The Company eliminates intersegment sales when reconciling to the Company’s consolidated statements of income.
(3)The Company defines Adjusted EBITDA as EBITDA adjusted for certain items as noted in the reconciliation below. Management evaluates the performance of its segments and allocates resources based on several factors, of which the primary measure is Adjusted EBITDA. Adjusted EBITDA should not be considered as an alternative to net income as an indicator of the Company’s operating performance. Adjusted EBITDA as defined by the Company may not be comparable with EBITDA or Adjusted EBITDA as defined by other companies.
(4)(3)     The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $42,515$50,490 for the year ended December 31, 2020,2023, which includes $21,157$30,695 of equity in net income plus $6,634$6,403 of amortization of investment in affiliate step-up plus $14,724$13,392 of joint venture depreciation, amortization and interest.
The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $68,138$50,331 for the year ended December 31, 2019,2022, which includes $45,899$27,931 of equity in net income plus $7,534$6,403 of amortization of investment in affiliate step-up plus $14,705$15,997 of joint venture depreciation, amortization and interest.
The Adjusted EBITDA from the Zeolyst Joint Venture included in the Advanced Materials & Catalysts segment is $56,663$49,872 for the year ended December 31, 2018,2021, which includes $37,437$27,827 of equity in net income plus $6,634$6,480 of amortization of investment in affiliate step-up plus $12,592$15,565 of joint venture depreciation, amortization and interest.
(5)    Total Segment Adjusted EBITDA differs from the Company’s consolidated Adjusted EBITDA due to unallocated corporate expenses.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


A reconciliation of net income attributablefrom continuing operations before income taxes to PQ Group Holdings to Segment Adjusted EBITDA from reportable segments is as follows:
Years ended
December 31,
202020192018
Reconciliation of net (loss) income attributable to PQ Group Holdings Inc. to Segment Adjusted EBITDA
Net (loss) income from continuing operations$(176,265)$65,136 $49,271 
(Benefit) provision for income taxes(48,122)39,677 33,641 
Interest expense, net66,979 87,072 90,758 
Depreciation and amortization151,840 151,797 153,931 
Segment EBITDA(5,568)343,682 327,601 
Joint venture depreciation, amortization and interest14,724 14,705 12,592 
Amortization of investment in affiliate step-up6,634 7,534 6,634 
Goodwill impairment charge260,000 
Debt extinguishment costs25,028 3,400 7,751 
Net (gain) loss on asset disposals(134)(13,207)4,190 
Foreign currency exchange (gain) loss(4,172)2,410 12,543 
LIFO (benefit) expense(5,229)9,700 3,039 
Transaction and other related costs8,618 415 490 
Equity-based compensation21,527 16,212 18,419 
Restructuring, integration and business optimization expenses15,596 3,554 8,707 
Defined benefit pension plan cost12 2,960 411 
Gain on contract termination(1)
(20,612)
Other959 2,597 6,155 
Adjusted EBITDA337,995 393,962 387,920 
Unallocated corporate expenses36,079 41,033 37,842 
Segment Adjusted EBITDA$374,074 $434,995 $425,762 

(1)    Includes the non-cash write-off of a long-term supply contract obligation (see Note 25), which was recorded as a reduction in other operating expense, net in the consolidated statement of income for the year ended December 31, 2018.
Years ended
December 31,
202320222021
Reconciliation of income from continuing operations before income taxes to Adjusted EBITDA from reportable segments
Income from continuing operations before income taxes$81,939 $94,735 $13,941 
Interest expense, net44,730 37,217 36,990 
Depreciation and amortization84,598 79,163 79,741 
Unallocated corporate expenses21,990 29,042 38,089 
Joint venture depreciation, amortization and interest13,392 15,997 15,565 
Amortization of investment in affiliate step-up6,403 6,402 6,480 
Debt extinguishment costs— — 26,902 
Net loss on asset disposals4,137 3,594 5,666 
Foreign currency exchange loss (gain)(1,340)1,388 4,716 
LIFO benefit3,473 (165)(1,931)
Transaction and other related costs2,954 6,988 2,009 
Equity-based compensation16,031 20,632 31,838 
Restructuring, integration and business optimization expenses2,655 11,566 3,866 
Other896 (821)1,828 
Adjusted EBITDA from reportable segments$281,858 $305,738 $265,700 
The Company’s consolidated results include equity in net income from affiliated companies of $21,237, $46,022$30,624, $27,725 and $37,569$27,737 for the years ended December 31, 2020, 2019,2023, 2022, and 2018,2021, respectively. This is primarily comprised of equity in net income of $21,157, $45,899$30,695, $27,931 and $37,437$27,827 in the Advanced Materials & Catalysts segment from the Zeolyst Joint Venture for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. The remaining equity in net income for the Company is included in the Performance Chemicals segment, which was attributed to smaller investments and was not material. The Company’s equity in net income from affiliated companies in the consolidated results includes amortization expense related to purchase accounting fair value adjustments associated with the Zeolyst Joint Venture as a result of a prior business combination.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Capital expenditures for the Company’s reportable segments are shown in the following table:
 Years ended
December 31,
 202020192018
Capital expenditures:  
Refining Services$31,799 $42,310 $46,617 
Catalysts(1)
11,177 8,984 8,390 
Performance Chemicals40,864 53,910 56,759 
Corporate(2)
13,295 5,898 29 
Capital expenditures per the consolidated statements of cash flows$97,135 $111,102 $111,795 

 Years ended
December 31,
 202320222021
Capital expenditures:  
Ecoservices$53,705 $47,770 $43,561 
Advanced Materials & Catalysts(1)
8,441 8,194 15,997 
Corporate(2)
3,189 2,906 487 
Capital expenditures per the consolidated statements of cash flows$65,335 $58,870 $60,045 
(1)    Excludes the Company’s proportionate share of capital expenditures from the Zeolyst Joint Venture.
(2)    Includes corporate capital expenditures, the cash impact from changes in capital expenditures in accounts payable and capitalized interest.

F-40



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Total assets by segment are not disclosed by the Company because the information is not prepared or used by the CODM to assess performance and to allocate resources.
Sales and long-lived assets by geographic area are presented in the following tables.table. Sales are attributed to countries based upon location of products shipped.
Years ended
December 31,
202020192018
Sales(1):
  
United States$655,015 $735,752 $740,190 
Netherlands108,338 117,211 127,803 
United Kingdom107,539 99,048 101,277 
Other foreign countries236,471 247,903 259,656 
Total$1,107,363 $1,199,914 $1,228,926 

Years ended
December 31,
202320222021
Sales(1):
  
United States$649,652 $774,119 $571,587 
Foreign countries41,466 46,040 39,614 
Total$691,118 $820,159 $611,201 
(1)    Except for the United States, no sales in an individual country exceeded 10% of the Company’s total sales.
The Company sold products through its Ecoservices and Advanced Materials & Catalysts segments to single customer, which accounted for 13.2%, 12.3% and 12.6% of the Company’s total sales as of December 31, 2023, 2022, and 2021 respectively.
Long-lived assets by geographic area is presented in the following table. Long-lived assets includes property, plant and equipment, net and right-of-use lease assets.

December 31,
20232022
Long-lived assets:  
United States$575,536 $587,726 
Foreign countries25,649 25,428 
Total$601,185 $613,154 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)



December 31,
20202019
Long-lived assets(1):
  
United States$749,635 $784,699 
Netherlands53,006 49,559 
United Kingdom100,392 92,229 
Other foreign countries128,441 133,086 
Total$1,031,474 $1,059,573 

(1)    Long-lived assets includes property, plant and equipment, net and right-of-use lease assets.
15.14. Goodwill and Other Intangible Assets:
The changes in the carrying amount of goodwill for the years ended December 31, 20202023 and 20192022 is summarized as follows:
Refining ServicesCatalystsPerformance
Chemicals
Total
Balance as of December 31, 2018$311,892 $77,759 $580,023 $969,674 
Foreign exchange impact852 3,052 3,904 
Balance as of December 31, 2019311,892 78,611 583,075 973,578 
Goodwill impairment(260,000)(260,000)
Foreign exchange impact1,062 3,098 4,160 
Balance as of December 31, 2020$311,892 $79,673 $326,173 $717,738 
EcoservicesAdvanced Materials & CatalystsTotal
Balance as of December 31, 2021$326,670 $79,469 $406,139 
Goodwill adjustments (1)
(81)— (81)
Foreign exchange impact— (2,895)(2,895)
Balance as of December 31, 2022326,589 76,574 403,163 
Foreign exchange impact— 1,307 1,307 
Balance as of December 31, 2023$326,589 $77,881 $404,470 

(1)
The carrying amounts of goodwill at     During the year ended December 31, 2020, 20192022, the Company recorded an adjustment of $81 between goodwill and 2018 are net ofdeferred tax liabilities related to the following accumulated impairment losses:
Refining ServicesCatalystsPerformance
Chemicals
Total
Accumulated impairment losses as of December 31, 2018
Accumulated impairment losses as of December 31, 2019
Accumulated impairment losses as of December 31, 2020(260,000)(260,000)

final tax purchase price allocation for the Chem32 LLC acquisition.
The Company completed its annual goodwill impairment assessments as of October 1, 20202023 and 2019.2022. For the annual assessments, the Company bypassed the option to perform the qualitative assessment and proceeded directly to performing the quantitative goodwill impairment test for each of its reporting units. The quantitative test identifies both the potential existence of impairment and the amount of impairment loss. For each of the October 1, 20202023 and 20192022 assessments, the Company identified 3two reporting units, which align with the Company’s operating segments.
The Company determined the fair value of its reporting units using a split between a market approach and an income, or discounted cash flow, approach. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The Company estimates reporting unit market approach fair value using publicly traded comparable company values and applies the selected market multiples to each reporting unit’s trailing twelve months adjusted EBITDA. The Company estimates reporting unit income-based fair value using the discounted cash flow approach. This approach requires use of significant assumptions about future cash flows and based on management’s assessment of a number of factors. Such factors include reporting unit revenue growth rates from implementation of strategic plans, operating margin growth rates, the perpetual growth rate, and the weighted average cost of capital, as well as the reporting unit’s recent performance and management’s ability to execute on planned future strategic initiatives. Discount rate assumptions are based on an assessment of the risk inherent in those future cash flows.
Based on the Company’s announced strategic review of the Performance Chemicals reporting unit in the fourth quarter, the Company concluded the market approach was more appropriate to estimate the fair value of the reporting unit for the annual impairment test. The Company reviewed the recent reporting unit performance and peer company performance under current market conditions. As a result, the Company recorded a goodwill impairment charge of $260,000 in the fourth quarter of 2020, included in goodwill impairment charge in the consolidated statements of income related to the Performance Chemicals reporting unit. The carrying value of the Performance Chemicals reporting unit's goodwill was $326,173 at December 31, 2020. No other goodwill impairments were identified as a result of the 2020 testing.
As of October 1, 2019,2023, the fair values of each of the Company’s reporting units exceeded their respective carrying values and therefore, no goodwill impairment exists for the year ended December 31, 2019.2023.
In addition to the annual goodwill impairment assessment, the Company also performed the annual impairment test over its other indefinite-lived intangible assets as of October 1, 20202023 and 2019.2022. The fair values of the Company’s indefinite-lived trade names and trademarks were in excess of their carrying amounts as of the respective testing dates, and as such, there was no further impairment of the Company’s indefinite-lived intangible assets for the years ended December 31, 20202023 and 2019.2022.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Gross carrying amounts and accumulated amortization for intangible assets other than goodwill are as follows:
December 31, 2023
December 31, 2023
December 31, 2023December 31, 2022
Gross
Carrying
Amount
Gross
Carrying
Amount
Accumulated
Amortization
Net
Balance
Gross
Carrying
Amount
Accumulated
Amortization
Net
Balance
Technical know-how
Customer relationships
Non-compete agreements
Trademarks
Trade names
December 31, 2020December 31, 2019
Total definite-lived intangible assets
Gross
Carrying
Amount
Accumulated
Amortization
Net
Balance
Gross
Carrying
Amount
Accumulated
Amortization
Net
Balance
Technical know-how$180,768 $(47,207)$133,561 $177,873 $(37,102)$140,771 
Customer relationships325,773 (134,842)190,931 321,434 (106,627)214,807 
Contracts16,200 (15,258)942 
Trademarks7,709 (2,399)5,310 7,600 (1,858)5,742 
Permits9,100 (9,100)9,100 (9,100)
Total definite-lived intangible assets
Total definite-lived intangible assets
Indefinite-lived trade names
Indefinite-lived trade names
Indefinite-lived trade names
In-process research and developmentIn-process research and development500 (25)475 
Total definite-lived intangible assets523,850 (193,573)330,277 532,207 (169,945)362,262 
Indefinite-lived trade names108,713 — 108,713 106,811 — 106,811 
Indefinite-lived trademarks82,613 — 82,613 80,999 — 80,999 
In-process research and development
In-process research and developmentIn-process research and development4,700 — 4,700 5,200 — 5,200 
Total intangible assetsTotal intangible assets$719,876 $(193,573)$526,303 $725,217 $(169,945)$555,272 
The Company amortizes technical know-how over periods that range from eleventen years to twenty years, customer relationships over periods that range from seventen years to fifteen years, non-compete agreements over five years, trademarks over periods that range from eleven years to fifteen years, contractsand trade names over periods that range from two years to sixteen years, and permits over fiveten years. In-process research and development intangible assets are considered indefinite-lived until such time as the associated projects are completed, at which time amortization commences on the assets, or abandoned, which results in the impairment of the assets.
Amortization expense related to technical know-how is included in cost of goods sold in the consolidated statements of income and was $3,482, $3,480 and $3,465 for the years ended December 31, 2023, 2022 and 2021, respectively. Amortization expense related to customer relationships, non-compete agreements, trademarks, and trade names is included in other operating expense, net in the consolidated statements of income and was $10,565, $10,562 and $10,321 for the years ended December 31, 2023, 2022 and 2021, respectively.
Estimated future aggregate amortization expense of intangible assets is as follows:
Year 
Amount 
2024$14,068 
202514,068 
202612,912 
202712,370 
202812,222 
Thereafter21,643 
Total estimated future aggregate amortization expense$87,283 
  

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Amortization expense related to technical know-how, contracts and permits is included in cost of goods sold in the consolidated statements of income and was $9,369, $13,877 and $13,579 for the years ended December 31, 2020, 2019 and 2018, respectively. Amortization expense related to customer relationships and trademarks is included in other operating expense, net in the consolidated statements of income and was $26,923, $26,888 and $27,258 for the years ended December 31, 2020, 2019 and 2018, respectively.
Estimated future aggregate amortization expense of intangible assets is as follows:
Year 
Amount 
2021$36,292 
202236,292 
202336,292 
202436,292 
202536,292 
Thereafter148,817 
Total estimated future aggregate amortization expense$330,277 
  

16.15. Accrued Liabilities:
The following table summarizes the components of accrued liabilities as follows:
December 31,
20202019
Compensation and bonus$35,251 $40,374 
Interest11,573 19,110 
Property tax2,656 2,250 
Environmental reserves (Note 24)4,309 4,548 
Income taxes869 4,900 
Commissions and rebates854 1,459 
Pension, postretirement and supplemental retirement plans (Note 21)1,852 1,825 
Derivative liabilities1,954 420 
Other14,493 10,524 
$73,811 $85,410 

F-45
December 31,
20232022
Compensation and bonus$16,594 $30,890 
Interest11,976 10,493 
Property tax3,657 2,123 
Income taxes7,708 4,412 
Finance lease and financing obligation liabilities3,069 2,855 
Dividends payable641 4,062 
Other18,048 17,394 
$61,693 $72,229 

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


17.16. Long-term Debt:
The summary of long-term debt is as follows:
December 31,
20202019
Senior Secured Term Loan Facility due February 2027$671,710 $947,497 
New Senior Secured Term Loan Facility due February 2027459,653 
6.75% Senior Secured Notes due 2022625,000 
5.75% Senior Unsecured Notes due 2025295,000295,000 
December 31,December 31,
202320232022
Senior Secured Term Loan Facility due June 2028 (the "2021 Term Loan Facility")
ABL FacilityABL Facility
Total debtTotal debt1,426,363 1,867,497 
Original issue discountOriginal issue discount(15,641)(13,434)
Deferred financing costsDeferred financing costs(10,353)(10,839)
Total debt, net of original issue discount and deferred financing costsTotal debt, net of original issue discount and deferred financing costs1,400,369 1,843,224 
Less: current portionLess: current portion
Total long-term debt, excluding current portionTotal long-term debt, excluding current portion$1,400,369 $1,843,224 
Senior Secured Credit Facilities
ABL Facility
On May 4, 2016, the Company entered into senior secured credit facilities (collectively, the “2016 Senior Secured Credit Facilities”) comprised of a $1,200,000 term loan facility, which consisted of a $900,000 U.S. dollar-denominated tranche and a $300,000 Euro-denominated (or €265,000) tranche (the “2016 Term Loan Facility”), and a $200,000 asset-based revolving credit facility (the “ABL Facility”).
On February 8, 2018 (the “Third Amendment Closing Date”), PQ Corporation (the “Borrower”(“PQ Corp”), an indirect, wholly owned subsidiary of the Company refinanced its existing U.S. Dollar and Euro denominated senior secured term loan facilities with a new $1,267,000 senior secured term loan facility (the “ Senior Secured Term Loan Facility”) by entering into the Third Amendment Agreement to the 2016 Term Loan Facility (the “Third Amendment”), which amended and restated the Term Loan Credit Agreement dated as of May 4, 2016, among the Borrower, CPQ Midco I Corporation, Credit Suisse AG, Cayman Island Branch, as administrative agent and collateral agent, and the lenders and the other parties party thereto from time to time (as amended prior to the Third Amendment,closing of the “Existing Credit Agreement” and as amended and restated bysale of the Amendment, the “New Credit Agreement”Performance Chemical business entered into a $200,000 senior secured asset-based revolving credit facility (the “ABL Facility”)., which provided for $200,000 revolving credit commitments.
On February 7,March 20, 2020, the CompanyPQ Corp amended its Senior Secured Term Loanexisting ABL Facility to among other things, (a) reduceincrease the aggregate amount of the revolving loan commitments available by $50,000 to $250,000, consisting of up to $195,000 in U.S. commitments, up to $15,000 in Canadian commitments and up to $40,000 in European commitments. The maturity of the facility was extended to March 20, 2025. In addition, there was an annual commitment fee equal to 0.375%, with a step-down to 0.25% based on average usage of the revolving credit borrowings available
Following the amendment, the borrowings under the amended ABL Facility bore interest at a rate applicableequal to allthe LIBOR rate tranche B-1 term loans to LIBOR plus 2.25% per annum, (b) reduceor the interest rate applicable to all base rate tranche B-1 term loans to the alternate base rate plus a margin of between 1.25% per annum and (c) extend the maturity date of all tranche B-1 term loans to February 7, 2027.
On July 22, 2020, the Company entered into an agreement for a new senior secured term loan facility (the “New Senior Secured Term Loan Facility”1.75% or 0.25% to 0.75%, collectively with the Senior Secured Term Loan Facility, the “Term Loan Facilities”) in an aggregate principal amount of $650,000 with an original issue discount of 1.5% and interest at a floating rate of LIBOR (with a 1.0% minimum LIBOR floor) plus 3.0% per annum. The proceeds were used to redeem its existing $625,000 of 6.75% Senior Secured Notes due 2022 and pay the associated early redemption premiums. The New Senior Secured Term Loan Facility requires scheduled quarterly amortization payments, each equal to 0.25% of the original principal amount of the loans under the New Senior Secured Term Loan Facility.
As of December 31, 2020, the Senior Secured Term Loan Facility accrued interest at a floating rate of LIBOR plus 2.50% per annum and is scheduled to mature in February 2027. The Term Loan Facility requires scheduled quarterly amortization payments, each equal to 0.25% of the original principal amount of the loans under the Term Loan Facility.

respectively.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


On June 9, 2021, PQ Corp and Ecovyst LLC (as defined below) entered into a third amendment agreement (the “ABL Amendment”), which amended its ABL Credit Agreement, dated as of May 4, 2016 (the “ABL Credit Agreement” and, as amended by the ThirdABL Amendment, Closing Date,the “Amended ABL Credit Agreement”). The ABL Amendment, among other things, following the sale of Performance Chemicals, decreased the aggregate amount of revolving loan commitments available to the borrowers thereunder by an aggregate amount of $150,000 to $100,000, consisting of $90,000 in U.S. commitments and $10,000 in European commitments and extended the maturity date with respect to borrowings under the Amended ABL Credit Agreement to August 2, 2026.
On February 17, 2023, the Company also entered into multiple cross currency swap arrangementsamended the ABL Facility to hedge foreign currency risk.replace LIBOR with SOFR as the benchmark interest rate. Following this amendment, the borrowings under the ABL Facility bear interest at a rate equal to an adjusted term SOFR rate or the base rate, which includes a credit spread adjustment of 10 basis points, plus a margin of between 1.25% to 1.75% or 0.25% to 0.75%, respectively. The swaps were designed to enable the Company to effectively convert a portion of its fixed-rate U.S. dollar denominated debt obligations into approximately €280,000. The swaps were to mature in February 2023. In October 2019, the Company settled all of its cross-currency interest rate swap arrangements (the “February 2018 swaps”) and concurrently entered into new cross-currency interest rate swap arrangements (the “October 2019 swaps”) withon the same notional amount of €280,000 equivalent ($344,403ABL Facility was 8.75% as of December 31, 2020) and same maturity2023.
As of February 2023. ConsistentDecember 31, 2023, there were no revolving credit borrowings outstanding under the ABL Facility. Revolving credit borrowings are payable at the option of the Borrower throughout the term of the ABL Facility with the February 2018 swaps,balance due August 2, 2026. The Company has the October 2019 swapsability to request letters of credit under the ABL Facility. The Company had $4,043 of letters of credit outstanding as of December 31, 2023, which reduce available borrowings under the ABL Facility by such amounts.
The obligations of the Borrower under the ABL Facility are designed to enableguaranteed by the Company to effectively convert a portion of its fixed-ratesame U.S. dollar-denominated debt obligations undersubsidiary guarantors that guarantee the 2021 Term Loan Facility into a Euro-denominated equivalent. The October 2019 swaps have been designated(as described below) and qualify as net investment hedgesthe obligations of the Company’sEuropean Borrowers under the ABL Facility are guaranteed by a certain European subsidiary of the Borrower. The obligations of the borrowers and guarantors under the ABL Facility are secured (i) by a first-priority security interest in, among other things, substantially all of their receivables, inventory, deposit accounts and other collateral securing the ABL Facility on a first-priority basis and (ii) by a second-priority security interest in the property and assets of the Borrower and the U.S. subsidiary guarantors that secure the 2021 Term Loan Facility. In addition, the ABL Facility is secured by the equity interests in, and substantially all of the assets of, certain foreign currency exchangeguarantors in connection with the Euro-denominated availability.
The ABL Facility and the 2021 Term Loan Facility contain various restrictive covenants. Each limits the ability of the Borrower and its restricted subsidiaries to incur certain indebtedness or liens, merge, consolidate or liquidate, dispose of certain property, make investments or declare or pay dividends, make optional payments, modify certain debt instruments, enter into certain transactions with affiliates, enter into certain sales and leasebacks, and certain other non-financial restrictive covenants. The ABL Facility also contains one financial covenant which applies when minimum availability under the ABL Facility exceeds a certain threshold. During such time, the Company is required to maintain a fixed-charge coverage ratio of at least 1.0 to 1.0. The Company was in compliance with all debt covenants as of December 31, 2023 and 2022, respectively.
2021 Term Loan Facility
On June 9, 2021, PQ Corp and Ecovyst Catalyst Technologies LLC (“Ecovyst LLC” and, following the closing of the sale of the Performance Chemicals business, the “Borrower”), an indirect, wholly owned subsidiary of the Company, entered into an agreement (the “2021 Credit Agreement”) for the 2021 Term Loan Facility in an aggregate principal amount of $900,000 with an original issue discount of 0.25% and interest at a floating rate exposureof LIBOR (with a 0.50% minimum LIBOR floor) plus 2.75% per annum (or, depending on the Borrower’s first lien net investments of certain of its Euro-denominated subsidiaries.leverage ratio, 2.50%). The settlement2021 Term Loan Facility requires scheduled quarterly amortization payments, each equal to 0.25% of the original principal amount of the loans under the 2021 Term Loan Facility. The proceeds of the 2021 Term Loan Facility were used to pay in full the 2020 Term Loan Facility, partially pay the 2018 Term Loan Facility and pay the associated fees and expenses.
On February 2018 swaps resulted in cash proceeds to9, 2023, the Company of $38,070, whichamended the Company used for additional debt repayment2021 Term Loan Facility to replace LIBOR with SOFR as the benchmark interest rate. Following this amendments, the 2021 Term Loan Facility bears interest at an adjusted SOFR rate (with a 0.50% minimum floor) plus 2.75% per annum (or, depending on the Company’s Senior SecuredBorrower’s first lien net leverage ratio, 2.50%). The interest rate on the 2021 Term Loan Facility.Facility was 7.98% as of December 31, 2023.
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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


As of December 31, 2023, the 2021 Term Loan Facility accrued interest at a floating rate of SOFR plus 2.50% per annum and is scheduled to mature in June 2028.
The Company may at any time or from time to time voluntarily prepay loans under the 2021 Term Loan FacilitiesFacility in whole or in part without premium or penalty.
The 2021 Term Loan FacilitiesFacility requires mandatory prepayments from (i) 50% of “Excess Cash Flow” (as defined in the New2021 Credit Agreement) on an annual basis with step downs to lower percentages based on the Borrower’s leverage ratio, if applicable, (ii) net cash proceeds from the issuance or incurrence of certain indebtedness and (iii) net cash proceeds received from certain non-ordinary course disposition of assets and casualty events to the extent such net cash proceeds were not reinvested in the Company’s business within a certain specified time period. Prepayments are applied to remaining amortization installments in direct order of maturity. The remaining principal balance of the term loans are due upon maturity.
In addition, the New Credit Agreement contains customary affirmativeThe 2021 Term Loan Facility is guaranteed by Ecovyst Catalyst Technologies LLC and negative covenants and events of default, all of which are substantially the same as under the Existing Credit Agreement.
The Borrower and certain Canadian and EuropeanEcoservices Operations Corp, subsidiaries of the Borrower also have a $200,000 asset-based revolving credit facility (the “ABL Facility”) which provides for $150,000 in U.S. available borrowings, up to $10,000 in Canadian available borrowings and up to $40,000 of European available borrowings. Borrowings under the ABL Facility bear interest at a rate equal to the LIBOR rate or the base rate elected by the Company at the time of the borrowing plus a margin of between 1.50%-2.00% or 0.50%-1.00%, respectively, depending on availability under the ABL Facility. In addition, there is an annual commitment fee equal to 0.375%, with a step-down to 0.25% based on the average usage of the revolving credit borrowings available. As of December 31, 2020, there were 0 revolving credit borrowings under the ABL Facility. Revolving credit borrowings are payable at the option of the Company throughout the term of the ABL Facility with the balance due May 4, 2021.
On March 20, 2020, the Company amended its existing ABL Facility to increase the aggregate amount of the revolving loan commitments available by $50,000 to $250,000, consisting of up to $195,000 in U.S. commitments, up to $15,000 in Canadian commitments and up to $40,000 in European commitments. The maturity of the facility has been extended to March 20, 2025. Following the amendment, the borrowings under the amended ABL Facility bear interest at a rate equal to the LIBOR rate or the base rate plus a margin of between 1.25% to 1.75% or 0.25% to 0.75% respectively.
The Company has the ability to request letters of credit under the ABL Facility. The Company had $18,190 of letters of credit outstanding as of December 31, 2020, which reduce available borrowings under the ABL Facility by such amounts.
The Term Loan Facilities are guaranteed by CPQ Midco I Corporation, a subsidiary of the Company and the direct parent of the Borrower (“Holdings”) and substantially all of the Borrower’s wholly owned U.S. subsidiaries.Company. The obligations under the Term Facility are secured (i) by a first-priority security interest in, among other things, a pledge of substantially all of the Borrower’s and the guarantors’ assets (other than collateral securing the ABL Facility on a first-priority basis) and (ii) by a second-priority security interest in receivables, inventory, deposit accounts and other collateral of the Borrower and the U.S. subsidiary guarantors securing the ABL Facility. The liens securing the Term Loan Facilities and the guarantees are pari passu with the liens securing the Senior Secured Notes subject to the pari passu intercreditor agreement.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The obligations of the Borrower under the ABL Facility are guaranteed by Holdings and the same U.S. subsidiary guarantors that guarantee the Term Loan Facilities, the obligations of the Canadian Borrowers under the ABL Facility are guaranteed by a Canadian subsidiary of the Borrower and the obligations of the European Borrowers under the ABL Facility are guaranteed by certain other European subsidiaries of the Borrower. The obligations of the borrowers and guarantors under the ABL Facility are secured (i) by a first-priority security interest in, among other things, substantially all of their receivables, inventory, deposit accounts and other collateral securing the ABL Facility on a first-priority basis and (ii) by a second-priority security interest in the property and assets of Holdings, the Borrower and the U.S. subsidiary guarantors that secure the Term Loan Facilities. In addition, the ABL Facility is secured by the equity interests in, and substantially all of the assets of, certain foreign guarantors in connection with the Canadian dollar-denominated and Euro-denominated availability.
The Term Loan Facilities and the ABL Facility contain various non-financial restrictive covenants. Each limits the ability of PQ Corporation and its restricted subsidiaries to incur certain indebtedness or liens, merge, consolidate or liquidate, dispose of certain property, make investments or declare or pay dividends, make optional payments, modify certain debt instruments, enter into certain transactions with affiliates, enter into certain sales and leasebacks, and certain other non-financial restrictive covenants. The ABL Facility also contains one financial covenant which applies when minimum availability under the ABL Facility exceeds a certain threshold. During such time, the Company is required to maintain a fixed-charge coverage ratio of at least 1.0 to 1.0. The Company is in compliance with all debt covenants as of December 31, 2020 and 2019, respectively.
During the year ended December 31, 2020, the Company prepaid $466,134 of outstanding principal balance on its Term Loan Facilities. The Company wrote off $162 of previously unamortized deferred financing costs and original issue discount of $12,781 as debt extinguishment costs. The prepayments were applied against the remaining scheduled installments of principal due in respect of the loans under the Term Loan Facilities in direct order of maturity.
During the year ended December 31, 2019, the Company prepaid $210,000 of outstanding principal balance on the Senior Secured Term Loan Facility. The Company wrote off $1,027 of previously unamortized deferred financing costs and original issue discount of $2,414 as debt extinguishment costs. The prepayments were applied against the remaining scheduled installments of principal due in respect of the loans under the Senior Secured Term Loan Facility in direct order of maturity.
Debt extinguishment costs resulting from Term Loan amendments
As a result of amending the Term Loan Facilities during the year ended December 31, 2020, the Company recorded $2,188 of new creditor and third-party financing costs as debt extinguishment costs. In addition, previous unamortized deferred financing costs of $97 and original issue discount of $228 associated with the previously outstanding debt were written off as debt extinguishment costs.
As a result of amending the Term Loan Facilities during the year ended December 31, 2018, the Company recorded $2,124 of new creditor and third-party financing costs as debt extinguishment costs. In addition, previous unamortized deferred financing costs of $1,403 and original issue discount of $2,352 associated with the previously outstanding debt were written off as debt extinguishment costs.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


6.75% Senior Secured Notes - Redeemed in 2020
On May 4, 2016, the Borrower issued $625,000 of 6.750% Senior Secured Notes due November 2022 (the “6.75% Senior Secured Notes”) in transactions exempt from or not subject to registration under the Securities Act pursuant to Rule 144A and Regulation S under the Securities Act of 1933. The 6.75% Senior Secured Notes were guaranteed by guaranteed by PQ Holdings Inc. and by the U.S. subsidiary guarantors that guarantee the Term Loan Facility and were secured by liens on the assets of the Borrower and the U.S. subsidiary guarantors on a pari passu with the liens securing the Term Loan Facility subject to the pari passu intercreditor agreement. The guarantee by PQ Holdings Inc. was unsecured. The indenture relating to the 6.75% Senior Secured Notes contains various limitations on the Company’s and its restricted subsidiaries’ ability to incur additional indebtedness, pay dividends or repay certain debt, make loans and investments, sell assets, create liens, enter into transactions with affiliates, enter into agreements restricting the Borrower’s subsidiaries ability to pay dividends, and merge and consolidate with other companies, among other things. Interest on the 6.75% Senior Secured Notes was payable on May 15 and November 15 of each year, commencing November 15, 2016. No principal payments were required with respect to the 6.75% Senior Secured Notes prior to their final maturity. Prior to redeeming the notes, the 6.75% Senior Secured Notes had mature on date of November 15, 2022.
The 6.75% Senior Secured Notes were redeemable, in whole or in part, at the redemption prices (expressed as percentages of principal amount of the 6.75% Senior Secured Notes to be redeemed) set forth below, plus accrued and unpaid interest, if any, to, but not including, the redemption date, if redeemed on or after any of the dates below until the subsequent date below:
YearPercentage
May 15, 2020101.688%
May 15, 2021 and thereafter100.000%

As a result of redeeming the 6.75% Senior Secured Notes due 2022, the Company paid a redemption premium of $10,550 which was recorded as debt extinguishment costs during the year ended December 31, 2020. In addition, previous unamortized deferred financing costs of $2,085 and original issue discount of $1,186 associated with the previously outstanding debt were written off as debt extinguishment costs for the year ended December 31, 2020.
New Senior Secured Term Loan Facility due February 2027
In July 2020, the Company entered into an agreement for a new senior secured term loan facility in an aggregate principal amount of $650,000 with an original issue discount of 1.5% and interest at a floating rate of LIBOR (with a 1.0% minimum LIBOR floor) plus 3.0% per annum. The proceeds were used to redeem its existing $625,000 of 6.75% Senior Secured Notes due 2022 and pay the associated early redemption premiums. The new senior secured term loan facility requires scheduled quarterly amortization payments, each equal to 0.25% of the original principal amount of the loans under the new senior secured term loan facility.
5.75% Senior Unsecured Notes due 2025
On December 11, 2017, the Borrower issued $300,000 aggregate principal amount of 5.75% Senior Unsecured Notes due 2025 (the “5.75% Senior Unsecured Notes”) in a private placement exempt from the registration requirements of the Securities Act. The 5.75% Senior Unsecured Notes mature on December 15, 2025. Interest on the 5.75% Senior Unsecured Notes is to be paid semi-annually on February 15 and August 15, commencing August 15, 2018, at an annual rate of 5.75%. The indenture relating to the 5.75% Senior Unsecured Notes contained various limitations on the Borrower’s and its restricted subsidiaries’ ability to incur additional indebtedness, pay dividends or repay certain debt, make loans and investments, sell assets, create liens, enter into transactions with affiliates, enter into agreements restricting the Borrower’s subsidiaries ability to pay dividends, and merge and consolidate with other companies, among other things. No principal payments are required with respect to the Senior Secured Notes prior to their final maturity.
The obligations of the Borrower under the 5.75% Senior Unsecured Notes and the related indenture are guaranteed by its U.S. subsidiary guarantors that guarantee the Term Loan Facility. The obligations of the Company under the 5.75% Senior Unsecured Notes and the indenture are unsecured.
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


If any Event of Default (other than a default relating to certain events of bankruptcy or insolvency of PQ Corporation or certain of its subsidiaries) occurs and is continuing under the Indenture, the Trustee or the Holders of at least 30% in principal amount of the then total outstanding notes by notice to the Company may declare the principal, premium, if any, interest and any other monetary obligations on all the then outstanding notes to be due and payable immediately. If an event of default arising from certain events of bankruptcy or insolvency of the Company occurs, the principal of, premium, if any, and interest on all the Senior Secured Notes shall become immediately due and payable without any declaration or other act on the part of the trustee or any holders.
At any time prior to December 15, 2020, the Borrower may, at its option and on one more occasions, redeem (a) up to 40% of the aggregate principal amount of the 5.75% Senior Unsecured Notes with the cash proceeds from certain equity offerings at a redemption price equal to the sum of 105.75% of the aggregate principal amount thereof plus accrued and unpaid interest thereon, and (b) all or part of the 5.75% Senior Unsecured Notes at 100.00% of the aggregate principal amount redeemed plus accrued and unpaid interest thereon and a make-whole premium (the “Applicable Premium”). The Applicable Premium is equal to the greater of: (a) 1% of the principal amount of notes redeemed, or (b) the excess, if any, of: (1) the present value at the redemption date of (i) the redemption price of such notes at December 15, 2020 (as set forth in the table below), plus (ii) all required remaining scheduled interest payments due on such notes through December 15, 2020 (excluding accrued but unpaid interest to, but excluding, the redemption date), computed using a discount rate equal to the applicable United States Treasury rate as of such redemption date plus 50 basis points; over (2) the outstanding principal amount of such notes on the redemption date.
On or after December 15, 2020, the 5.75% Senior Unsecured Notes are redeemable, in whole or in part, at the redemption prices (expressed as percentages of principal amount of the 5.75% Senior Unsecured Notes to be redeemed) set forth below, plus accrued and unpaid interest, if any, to, but not including, the redemption date, if redeemed on or after any of the dates below until the subsequent date below:
YearPercentage
December 15, 2020102.875%
December 15, 2021101.438%
December 15, 2022 and thereafter100.000%

Upon the occurrence of a change of control, as defined, each holder will have the right to require the Company to purchase all or any part of such holder’s Senior Secured Notes at a purchase price in cash equal to 101% of the principal amount, plus accrued and unpaid interest.
Fair Value of Debt
The fair value of a financial instrument is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. As of December 31, 20202023 and 2019,2022, the fair value of the senior secured term loansloan was $876,403 and senior secured and unsecured notes was $1,427,123 and $1,905,822,$870,986, respectively. The fair value is classified as Level 2 based upon the fair value hierarchy (see Note 6 to these consolidated financial statements for further information on fair value measurements).
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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Aggregate Long-term Debt Maturities
The aggregate long-term debt maturities are:
YearAmount
2021$
2022
2023
2024
2025295,000 
Thereafter1,131,363 
$1,426,363 
YearAmount
2024$9,000 
20259,000 
20269,000 
20279,000 
2028841,500 
$877,500 

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18.



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


17. Other Long-term Liabilities:
The following table summarizes the components of other long-term liabilities as follows:
December 31,
20202019
Pension benefits$40,812 $52,060 
Other postretirement benefits3,644 1,668 
Supplemental retirement plans11,376 10,632 
Derivative liabilities32,512 10,956 
Deferred revenue13,388 6,450 
Reserve for uncertain tax positions345 873 
Asset retirement obligation4,943 4,555 
Other3,995 4,110 
$111,015 $91,304 

December 31,
20232022
Pension plan liabilities$4,937 $6,250 
Other postretirement benefit plan liabilities457 428 
Derivative liabilities2,496 2,071 
Finance lease and financing obligation liabilities4,955 7,633 
Reserve for uncertain tax positions9,523 8,215 
Other71 1,249 
$22,439 $25,846 
19.18. Financial Instruments:
The Company uses (1) interest rate related derivative instruments to manage its exposure related to changes in interest rates on its variable-rate debt instruments and (2) foreign currency related derivative instruments to manage its foreign currency exposure to its net investments in certain foreign operations.instruments. The Company does not speculate using derivative instruments.
By using derivative financial instruments to hedge exposures to changes in interest rates, and foreign currency, the Company exposes itself to credit risk and market risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is an asset, the counterparty owes the Company, which creates credit risk for the Company. When the fair value of a derivative contract is a liability, the Company owes the counterparty and therefore, the Company is not exposed to the counterparty’s credit risk in those circumstances. The Company minimizes counterparty credit risk in derivative instruments by entering into transactions with high quality counterparties. The derivative instruments entered into by the Company do not contain credit-risk-related contingent features.
Market risk is the adverse effect on the value of a derivative instrument that results from a change in interest rates or currency exchange rates. The market risk associated with interest rate contractsthe Company’s derivative instruments is managed by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Use of Derivative Financial Instruments to Manage Interest Rate Risk. The Company is exposed to fluctuations in interest rates on its senior secured credit facilities. Changes in interest rates will not affect the market value of such debt but will affect the amount of the Company’s interest payments over the term of the loans. Likewise, an increase in interest rates could have a material impact on the Company’s consolidated statements of cash flow.flows. The Company hedges the interest rate fluctuations on debt obligations through interest rate cap agreements. The Company records these agreements at fair value as assets or liabilities in its consolidated balance sheet.sheets. As the derivatives are designated and qualify as cash flow hedges, the gains or losses on the interest rate cap agreements are recorded in stockholders’ equity as a component of OCI,other comprehensive income, net of tax. Reclassifications of the gains and losses on the interest rate cap agreements into earnings are recorded as part of interest expense in the consolidated statements of income as the Company makes its interest payments on the hedged portion of its senior secured credit facilities. Fair value is determined based on estimated amounts that would be received or paid to terminate the contracts at the reporting date based on quoted market prices.
In July 2016,The following table provides a summary of the Company entered intoCompany’s interest rate cap agreements, paying a premium of $1,551 to mitigate interest rate volatility from July 2016 through July 2020 by employing varying cap rates, ranging from 1.50% to 3.00% on $1,000,000 of notional variable-rate debt.agreements:
In November 2018, the Company entered into additional interest rate cap agreements to mitigate interest rate volatility from July 2020 through July 2022, with a cap rate of 3.50% on $500,000 of notional variable-rate debt and a $3,380 premium annuitized during the effective period. During the year ended December 31, 2020, the Company restructured its $500,000 of notional variable-rate debt interest rate cap agreements from July 2020 through July 2022, to lower the interest cap rate to 2.50% with an incremental $130 premium annuitized during the effective period. In March 2020, the Company again amended such interest rate cap agreements to lower the cap rate to 0.84% from 2.50% on $500,000 of notional variable-rate debt and paid an additional incremental $900 premium annuitized during the effective period. The term remains unchanged from July 2020 through July 2022. The total cumulative annuitized premium on the $500,000 of notional variable-rate debt is $4,410. The cap rate in effect at December 31, 2020 was 0.84% associated with the $500,000 of notional variable-rate debt.
In July 2020, the Company entered into additional interest rate cap agreements to mitigate interest rate volatility from August 2020 to August 2023, with a cap rate of 1.00% on $400,000 of notional variable-rate debt.
With the Company’s prepayments on its Term Loan Facility during 2019 (see Note 17 to these consolidated financial statements for additional information), the original forecasted interest rate payments associated with the dedesginated portion of the interest rate cap agreement are no longer probable of occurring. As a result of the discontinuance of cash flow hedge accounting on this portion of the interest rate cap agreement, the Company immediately reclassified into earnings the loss deferred in AOCI related to the dedesignated portion of the hedge, which was not material. Any future gains and losses associated with the dedesignated portion of the interest rate cap agreement through its maturity in July 2020 was recognized in earnings.
Use of Derivative Financial Instruments to Manage Foreign Currency Risk. The Company is exposed to risks related to its net investments in foreign operations due to fluctuations in foreign currency exchange rates, particularly between the United States dollar and the Euro. In connection with the February 2018 term loan refinancing (see Note 17 to these consolidated financial statements), the Company entered into multiple cross currency interest rate swap arrangements with an aggregate notional amount of €280,000 to hedge this exposure on the net investments of certain of its Euro-denominated subsidiaries. The Company records these swap agreements at fair value as assets or liabilities in its consolidated balance sheet.
In October 2019, the Company settled all of its February 2018 swaps and concurrently entered into the October 2019 swaps with the same notional amount of €280,000 ($344,403 as of December 31, 2020) and same maturity date of February 2023, which resulted in cash proceeds to the Company of $38,070. Consistent with the February 2018 swaps, the October 2019 swaps are designed to enable the Company to effectively convert a portion of its fixed-rate U.S. dollar-denominated debt obligations under the Term Loan Facility into a Euro-denominated equivalent. The October 2019 swaps have been designated and qualify as net investment hedges of the Company’s foreign currency exchange rate exposure on the net investments of certain of its Euro-denominated subsidiaries.
As the derivatives are designated and qualify as net investment hedges, changes in the fair value of the swaps attributable to changes in the spot exchange rates are recognized in cumulative translation adjustment (“CTA”) within
Financial instrumentNumber of instrumentsIn effect as of December 31, 2023Current notional amount of instruments in effectAnnuitized premium of instruments in effect
Interest rate cap43$650,000 $24,817 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


OCI and are held there until the hedged net investments are sold or substantially liquidated. Changes in the fair valueThe current notional amounts of the swaps attributablethree interest rate cap agreements in effect at December 31, 2023 are $250,000, $150,000 and $250,000. The Company entered into a $250,000 interest rate cap to mitigate interest rate volatility from August 2022 to October 2024, a $150,000 interest rate cap agreement to mitigate interest rate volatility from August 2023 to July 2026, and a $250,000 interest rate cap agreement to mitigate interest rate volatility from September 2023 to October 2025. The $150,000 interest rate cap agreement will increase to $175,000 to mitigate interest rate volatility from August 2024 to July 2026. The cap rates in effect at December 31, 2023 was 1.00%.
The Company has also entered into a forward starting interest rate cap agreements to mitigate interest volatility from November 2024 to October 2026.
In February 2023, the cross currency basis spread are excluded from the assessment of hedge effectiveness and are recorded in current period earnings. Upon such sale or liquidation, the amount recognized in CTA is reclassifiedCompany amended all existing interest rate cap agreements to earnings and reported in the same line itemreplace LIBOR with SOFR as the gain or lossbenchmark interest rate, with all other terms of the agreements remaining the same. This amendment changed the previously annuitized premiums on the liquidation of the net investments.existing interest rate cap agreements.
The fair values of derivative instruments held as of December 31, 20202023 and 20192022, respectively are shown below:
December 31,
Balance sheet location20202019
Derivative assets:
Derivatives designed as net investment hedges:
Cross currency swapsPrepaid and other current assets3,249 3,928 
Total derivative assets$3,249 $3,928 
Derivative liabilities:
Derivatives designated as cash flow hedges:
Interest rate capsAccrued liabilities1,954 420 
Interest rate capsOther long-term liabilities1,750 2,822 
3,704 3,242 
Derivatives designated as net investment hedges:
Cross currency swapsOther long-term liabilities30,762 8,134 
Total derivative liabilities$34,466 $11,376 

December 31,
Balance sheet location20232022
Derivative assets
Derivatives designated as cash flow hedges:
Interest rate capsPrepaid and other current assets$13,419 $18,510 
Interest rate capsOther long-term assets5,602 15,864 
Total derivative assets$19,021 $34,374 
Derivative liabilities
Derivatives designated as cash flow hedges:
Interest rate capsOther long-term liabilities$2,496 $2,071 
Total derivative liabilities$2,496 $2,071 

The following table shows the effect of the Company’s derivative instruments designated as cash flow hedges on accumulated other comprehensive income (loss) and the consolidated statements of income for the years ended December 31, 2023, 2022 and 2021, respectively:
Years ended December 31,
202320222021
Location of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into income
Interest rate capsInterest (expense) income$5,419 $22,731 $32,510 $(683)$3,441 $(444)
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following table shows the effect of the Company’s derivative instruments designated as hedges on accumulated other comprehensive income (loss) (“AOCI”) and the statements of income for the years ended December 31, 2020, 2019 and 2018:
Years ended December 31,
202020192018
Location of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) recognized in OCI on derivativesAmount of gain (loss) reclassified from AOCI into income
Interest rate capsInterest (expense) income$(167)$(54)$(3,304)$(625)$(981)$(256)
The following table shows the effect of the Company’s cash flow hedge accounting on the consolidated statements of income for the years ended December 31, 2020, 20192023, 2022 and 2018:2021, respectively:
Location and amount of gain (loss) recognized in income on cash flow hedging relationships
Years ended December 31,
202020192018
Cost of goods soldInterest (expense) incomeCost of goods soldInterest (expense) incomeCost of goods soldInterest (expense) income
Total amounts of income and expense line items presented in the statement of income in which the effects of cash flow hedges are recorded$(834,007)$(66,979)$(901,512)$(87,072)$(925,534)$(90,758)
Location and amount of gain (loss) recognized in income on cash flow hedging relationships
Location and amount of gain (loss) recognized in income on cash flow hedging relationships
Location and amount of gain (loss) recognized in income on cash flow hedging relationships
Years ended December 31,Years ended December 31,
2023202320222021
Total amounts of income and expense line items presented in the statement of income in which the effects of cash flow hedges are recorded in interest (expense) income
The effects of cash flow hedging:The effects of cash flow hedging:
Gain (loss) on cash flow hedging relationships:Gain (loss) on cash flow hedging relationships:
Gain (loss) on cash flow hedging relationships:
Gain (loss) on cash flow hedging relationships:
Interest contracts:Interest contracts:
Interest contracts:
Interest contracts:
Amount of gain (loss) reclassified from AOCI into income
Amount of gain (loss) reclassified from AOCI into income
Amount of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) reclassified from AOCI into income— (54)— (625)— (256)
The following table shows the effect of the Company’s net investment hedges on AOCI and the consolidated statements of income for the years ended December 31, 2020, 2019 and 2018:
Amount of gain (loss) recognized in OCI on derivativeLocation of gain (loss) reclassified from AOCI into incomeAmount of gain (loss) reclassified from AOCI into incomeLocation of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing)Amount of gain (loss) recognized in income on derivative (amount excluded from effectiveness testing)
Years ended
December 31,
Years ended
December 31,
Years ended
December 31,
202020192018202020192018202020192018
Cross currency swaps$(23,622)$17,077 $18,843 Net (loss) income from discontinued operations, net of tax$1,967 $$Interest (expense) income$5,090 $7,320 $6,752 
There are $281 amountsamount of unrealized losses in AOCI related to the Company’s cash flow hedges that areis expected to be reclassified to the consolidated statement of income over the next twelve months is $9,712 as of December 31, 2020.2023.

19. Income Taxes:
Income before income taxes within or outside the United States are shown below:
Years ended
December 31,
202320222021
Domestic$73,774 $86,695 $6,185 
Foreign8,165 8,040 7,756 
Total$81,939 $94,735 $13,941 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


20. Income Taxes:
Income (loss) before income taxes and noncontrolling interest within or outside the United States are shown below:
Years ended
December 31,
202020192018
Domestic$(175,143)$41,019 $(1,559)
Foreign(52,442)64,411 85,579 
Total$(227,585)$105,430 $84,020 
The provision (benefit) for income taxes as shown in the accompanying consolidated statements of income consists of the following:
Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
Current:Current: 
Federal
Federal
FederalFederal$$(3)$
StateState1,087 1,381 2,507 
ForeignForeign15,484 22,810 27,062 
16,571 24,188 29,569 
27,857
Deferred:Deferred:
Deferred:
Deferred:
Federal
Federal
FederalFederal(58,744)11,824 10,875 
StateState(2,910)3,175 67 
ForeignForeign(3,039)490 (6,870)
(17,072)
(64,693)15,489 4,072 
Provision for income taxes
Provision for income taxes
Provision for income taxes
Provision (benefit) for income taxes$(48,122)$39,677 $33,641 


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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


A reconciliation of income tax expense (benefit) at the U.S. federal statutory income tax rate to actual income tax expense is as follows:
Years ended
December 31,
202020192018
Tax at statutory rate$(47,793)$22,140 $17,644 
State income taxes, net of federal income tax benefit(2,324)6,802 2,541 
Tax on global intangible low-taxed income7,820 8,741 14,465 
Change in valuation allowances135 1,415 5,070 
Rate changes4,274 1,054 (4,016)
Foreign withholding taxes258 (6,116)142 
Foreign tax rate differential1,240 3,278 6,439 
Non-taxable interest(5,353)
Non-deductible goodwill53,342 
Foreign tax credits(56,359)
Permanent difference created by foreign exchange gain or loss(1,324)1,852 (4,839)
Other, net(2,038)511 (3,805)
Provision (benefit) for income taxes$(48,122)$39,677 $33,641 
Years ended
December 31,
202320222021
Tax at statutory rate$17,207 $19,894 $2,928 
State income taxes, net of federal income tax benefit748 248 3,942 
Changes in uncertain tax positions985 558 877 
State credit - valuation allowance release(10,203)— — 
Rate changes(101)— 5,209 
Stock compensation1,803 1,876 197 
Compensation disallowance under 162(m)2,344 3,146 466 
Foreign tax credits(848)— (759)
Research and development tax credits(400)(366)(620)
Other, net(750)(416)(93)
Provision for income taxes$10,785 $24,940 $12,147 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Deferred tax assets (liabilities) are comprised of the following:
December 31,
20202019
December 31,December 31,
202320232022
Deferred tax assets:Deferred tax assets:
Net operating loss carryforwardsNet operating loss carryforwards$28,145 $77,062 
Section 163(j) interest disallowance carryforward266 16,535 
Net operating loss carryforwards
Net operating loss carryforwards
Interest disallowance carryforward
PensionPension12,701 14,359 
Operating lease liabilityOperating lease liability11,803 14,455 
Operating lease liability
Operating lease liability
OtherOther36,545 29,298 
State creditsState credits12,733 12,280 
Foreign tax credit62,752 
Foreign withholding tax credits
Valuation allowanceValuation allowance(37,880)(39,379)
$127,065 $124,610 
Valuation allowance
Valuation allowance
38,581
Deferred tax liabilities:Deferred tax liabilities:
Depreciation
Depreciation
DepreciationDepreciation$(107,805)$(103,796)
InventoryInventory(4,946)(11,481)
Inventory
Intangible assets(162,301)(184,764)
Inventory
Intangibles
Intangibles
Intangibles
Operating lease right-of-use assets
Operating lease right-of-use assets
Operating lease right-of-use assetsOperating lease right-of-use assets(12,060)(14,278)
OtherOther(15,348)(22,619)
$(302,460)$(336,938)
Other
Other
(152,122)
Net deferred tax liabilitiesNet deferred tax liabilities$(175,395)$(212,328)
Net deferred tax liabilities
Net deferred tax liabilities

Under the tax laws of various jurisdictions in which we operate, deductions or credits that cannot be fully utilized for tax purposes during the year may be carried forward, subject to statutory limitations, to reduce taxable income or taxes payable in a future year. As of December 31, 2023, the Company has indefinite carryforwards of $9,083 foreign withholding tax credits. The Company has recorded a full valuation allowance against the foreign withholding tax credits as it is more likely than not that the benefit from these foreign tax credits will never be realized. The Company has $14,659 of deferred tax assets related to state tax credits, which are subject to a 16-year carryforward period. The Company expects to fully utilize its state tax credits before each expiration, as a result the Company has released the valuation allowance associated with its state tax credits. As of December 31, 2023, the valuation allowance associated with its state tax credits is $0. The Company has $14,680 of deferred tax assets related to state net operating losses and foreign losses, which are subject to various carryforward periods of 5 to 20 years or an indefinite carryforward period. A partial valuation allowance of $9,242 has been recorded due to the expected expiration of these state net operating losses before they are able to be utilized.
The change in net deferred tax liabilities for the years ended December 31, 20202023 and 20192022 was primarily related to the usagerelease of U.S. federala state tax credit valuation allowance, differences between book and state net operating losses reducing those deferred tax assets,basis depreciation, activity relatedconnected to book amortization of intangible assets with no corresponding tax basis reducing those deferred tax liabilities, activity with respect to tax deductible goodwill, as well as the election for full expensing on certain assets creating additional deferred tax liabilities for depreciable property. Further, the increase of the foreign tax credits on the deferred tax assetsactivity with respect to interest rate caps recorded against other comprehensive income, and the decrease of the Section 163(j) interest disallowance carryforward accounted for the changeactivity with respect to stock compensation.

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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in net deferred tax liabilities for year ended December 31, 2020.thousands, except share and per share amounts)


The net change in the total valuation allowance was a decrease of $1,499$12,290 in 2020.2023. The valuation allowance at December 31, 20202023 was primarily related to foreignstate and stateforeign net operating loss carryforwards and foreign withholding tax credits that, in the judgment of management, are not more likely than not to be realized. In assessing the ability to realize deferred tax assets, management considered whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considered the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income, and tax-planning strategies that are prudent in making this assessment. In order to fully realize deferred tax assets, the Company will need to generate future taxable income prior to the expiration of the net operating loss and credit carryforwards. The amount of the deferred tax assets considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The cumulative unremitted earnings of foreign subsidiaries outside the United States are considered permanently reinvested, for which no withholding taxes have been provided. Such earnings are expected to be reinvested indefinitely and, as a result, no deferred tax liability has been recognized with regard to such earnings. Determination of the deferred withholding tax liability on these unremitted earnings is not practicable. Undistributed earnings of foreign subsidiaries and related companies that are deemed to be indefinitely reinvested amounted to $198,580 at December 31, 2023.
The following table summarizes the activity related to the Company’s gross unrecognized tax benefits:
Years ended
December 31,
20202019
Balance at beginning of period$8,310 $9,434 
Increases related to prior year tax positions22 
Decreases related to prior year tax positions(14)(1,046)
Increases related to current year tax positions164 
Decreases related to settlements with taxing authorities(626)(100)
Balance at end of period$7,834 $8,310 
benefits. The amounts listed in the below table also represents the total unrecognized tax benefits of $7,834 and $8,310that, if recognized, would impact the effective tax rate as of December 31, 20202023 and 2019, respectively. If these amounts are recognized in future periods, it would affect the effective tax rate on income from continuing operations for the years in which they are recognized.2022, respectively:
Interest and penalties released related to uncertain tax positions amounted to $35 and $701 for the years ended December 31, 2020 and 2019, respectively.
Years ended
December 31,
20232022
Balance at beginning of period$7,787 $7,787 
Increases related to prior year tax positions323 — 
Balance at end of period$8,110 $7,787 
To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be reduced and reflected as a reduction of the overall income tax provision in the period for which the event occurs requiring the adjustment. The $112total amount of interest and $181penalties recognized in provision for income taxes on continuing operations was $855 and $558 for the years ended December 31, 2023 and 2022, respectively. The Company recorded cumulative accrued interest and penalties amounting to $1,413 as of December 31, 2020 and 2019, respectively, is recorded2023 in other long-term liabilities on theits consolidated balance sheets.
The Company files numerous consolidated and separate income tax returns in the U.S. federal jurisdiction and in many state and foreign jurisdictions. The following describes the open tax years, by significant tax jurisdiction, as of December 31, 2020:2023:
JurisdictionPeriod
United States-Federal2007-Present2007-2023
United States-State2007-Present2007-2023
Canada(1)
2012-Present
Netherlands2014-Present
Mexico2016-Present
United Kingdom2014-Present
Brazil2016-Present

(1)     Includes federal as well as local jurisdictions
Given that the Company has utilized U.S. and state net operating loss in the current and prior years, the statute for examination by the U.S. and state taxing authorities will typically remain open for a period following the use of such net operating loss carryforwards, extending the period for examination beyond the years indicated above.
The Company has subsidiaries in various states, provinces and countries that are currently under audit for years ranging from 2014 through 2018. To date, no material adjustments have been proposed as a result of these audits. As of December 31, 2020, the Company does not believe that there are any positions for which it is reasonably possible that the total amount of unrecognized tax benefits will significantly increase or decrease within the next 12 months.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


As of December 31, 2020,2023, it is reasonably possible that the Company may recognize approximately $8,023 of previously net unrecognized tax benefits, excluding interest and penalties, related to various U.S. federal tax positions, primarily due to the expiration of statutes of limitations within the next twelve months.
As of December 31, 2023 and 2022, the Company no longer has a federal NOL carryforward. As of December 31, 2020, the Company hasnet operating loss or foreign tax credit carryforwards of $62,752, which are net of $7,658 of uncertain tax position balances, which is permissible per ASU 2013-11. These carryforwards have a ten year carryforward, of which $13,241 are set to expire in 2021.
Cumulative state net operating losses carrying forward into December 31, 2020 are $24,467. A valuation allowance of $14,344 has been applied against the total state net operating loss deferred tax assets, leaving losses of $10,123 that have been recognized for financial accounting purposes for the portion of those losses that the Company believes, on a more likely than not basis, will be realized.
Foreign net operating losses of $3,678, of which $68 will begin to expire in 2028, $160 will begin to expire in 2036, with the remaining $3,450 carrying forward indefinitely, are available to reduce future foreign income taxes payable. A valuation allowance of $3,531 has been applied to deferred tax assets related to foreign net operating loss carry-forwards, leaving a net deferred tax asset relating to foreign net operating losses of $147 that has been recognized for financial accounting purposes.carryforward.
Cash payments for income taxes, net of refunds, are as follows:
Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
DomesticDomestic$2,198 $1,879 $2,154 
ForeignForeign20,810 12,354 17,654 
$
$23,008 $14,233 $19,808 

On August 16, 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA imposes a 15% corporate alternative minimum tax for certain large corporations with average annual adjusted financial statement income in excess of $1 billion for tax years beginning after December 31, 2022, levies a 1% excise tax on net stock repurchases after December 31, 2022, and provides tax incentives to promote clean energy. Historically the Company has made discretionary share repurchases under its share repurchase programs. Beginning in 2023, these transactions will be subject to the excise tax of the IRA. See Note 7 for information on the accrued excise tax related to these stock repurchases.
21.20. Benefit Plans:
The Company sponsors two funded defined benefit pension plans covering employees in the United States andthat cover certain employees at its foreign subsidiaries.employees. Benefits for a majority of the plans are generally based on average final pay and years of service. The Company’s funding policy is to fund the minimum required contribution under localcontributions consistent with statutory requirements.requirements based on actuarial computations utilizing the projected unit credit method of calculation.
The Company sponsors an unfunded plansplan to provide certain health care benefits to certain retired employees in the United States and Canada.employees. The plans payplan pays a stated percentage of medical expenses reduced by deductibles and other coverage. The plans are unfundedcoverage and obligations are paid out of the Company’s operations.
The Company also has defined benefit supplementary retirement plans which provide benefits for certain U.S. employees in excess of qualified plan limitations. The obligations are paid out of the Company’s general assets, including assets held in a Rabbi trust, or restoration plan assets.
The Company uses a December 31 measurement date for all of its defined benefit pension and postretirement medical and supplementary retirement plans. The following discussion includes information forOf the Eco Services benefit plans for all periods presented, and the acquired PQ Holdings benefit plans beginning on the date of a former business combination.
The Eco Services benefit plans include 2Company’s two defined benefit pension plans, the Eco Services Hourly Pension Plan was frozen to future accruals as of December 31, 2020, and the Eco Services Pension Equity Plan was frozen to future accruals as of December 31, 2016. The retiree healthcare plan was closed to new retirees effective July 1, retiree health plan, all based in the U.S.2017. The PQ Holdings benefit plans includeCompany no longer has a U.S. defined benefit pension plan as wellcovering its employees at a foreign subsidiary, as the plan was converted to a defined benefit pension plans for all ofcontribution plan during the Company’s foreign subsidiaries, 2 retiree health plans (1 each in the U.S and Canada), and the Company’s defined benefit supplementary retirement plans.

year ended December 31, 2021.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Of the Company’s 3 defined benefit pension plans covering employees in the U.S., only the Eco Services Hourly Pension Plan continues to accrue benefits for certain participants; however, this plan will be frozen to future accruals as of December 31, 2020. All future accruals were frozen for the PQ Corporation Retirement Plan as of December 31, 2006 and for the Eco Services Pension Equity Plan as of December 31, 2016. With respect to the Company’s three retiree health plans, the PQ Holdings plans in the U.S. and Canada were closed to new retirees as of December 31, 2006. The Eco Services Postretirement Life and Dental Plan was closed to new retirees effective July 1, 2017. The Company’s defined benefit supplementary retirement plans were frozen to future accruals as of December 31, 2006.
Defined Benefit Pension Plans
The following tables summarize changes in the benefit obligation, plan assets and funded status of the Company’s significant defined benefit pension plans as well as the components of net periodic benefit cost, including key assumptions:
December 31,December 31,
202320232022
Change in benefit obligation:
Benefit obligation at beginning of period
Benefit obligation at beginning of period
Benefit obligation at beginning of period
Interest cost
Interest cost
Interest cost
Plan settlements
Plan settlements
Plan settlements
Benefits paid
U.S.Foreign
December 31,December 31,
2020201920202019
Change in benefit obligation:
Benefit obligation at beginning of period$267,392 $246,311 $101,192 $84,435 
Service cost769 978 3,895 3,210 
Interest cost8,595 10,281 2,193 2,627 
Participant contributions574 550 
Plan curtailments(2,795)(1,603)
Plan settlements(1,455)(1,669)(105)(102)
Benefits paid(12,713)(10,862)(1,759)(1,833)
Expenses paid(353)(328)
Actuarial losses/(gains)
Actuarial (gains) losses25,894 25,148 4,664 13,459 
Translation adjustment6,191 (826)
Actuarial losses/(gains)
Actuarial losses/(gains)
Benefit obligation at end of the period
Benefit obligation at end of the period
Benefit obligation at end of the periodBenefit obligation at end of the period$288,482 $267,392 $114,889 $101,192 
Change in plan assets:Change in plan assets:
Change in plan assets:
Change in plan assets:
Fair value of plan assets at beginning of period
Fair value of plan assets at beginning of period
Fair value of plan assets at beginning of periodFair value of plan assets at beginning of period$231,413 $195,755 $85,308 $74,050 
Actual return on plan assetsActual return on plan assets41,405 43,116 6,646 10,564 
Employer contributions5,187 5,073 3,348 3,084 
Employee contributions574 550 
Plan settlements
Plan settlements
Plan settlementsPlan settlements(1,455)(1,669)(105)(102)
Benefits paidBenefits paid(12,713)(10,862)(1,759)(1,833)
Expenses paid(353)(328)
Translation adjustment5,209 (677)
Fair value of plan assets at end of the period
Fair value of plan assets at end of the period
Fair value of plan assets at end of the periodFair value of plan assets at end of the period$263,837 $231,413 $98,868 $85,308 
Funded status of the plans (underfunded)Funded status of the plans (underfunded)$(24,645)$(35,979)$(16,021)$(15,884)
Funded status of the plans (underfunded)
Funded status of the plans (underfunded)
The total actuarial losses for the year ended December 31, 2023 was $1,565, which was driven by decreases in the discount rates of $1,365 and declines in general demographic experience of $200. The total actuarial gains for the year ended December 31, 2022 was $18,741, which was driven by increases in the discount rates of $18,641 and increase in general demographic experience of $100.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The total actuarial losses for the year ended December 31, 2020 across the Company’s U.S. plans was $25,894, which was driven by declines in the discount rates of $26,642 and declines in general demographic experience of $1,261, which was offset by favorable changes in mortality assumptions of $2,009. The total actuarial losses for the year ended December 31, 2020 across the Company’s foreign plans was $4,664, which was driven by declines in the discount rates of $5,981 and declines in general demographic experience of $56 and favorable changes in mortality assumptions of $1,372.
The total actuarial losses for the year ended December 31, 2019 across the Company’s U.S. was $25,148, which was driven by declines in the discount rates of $26,604 and declines in general demographic experience of $2,953, which was offset by favorable changes in mortality assumptions of $4,409. The total actuarial losses for the year ended December 31, 2019 across the Company’s foreign plans was $13,459, which was driven by declines in the discount rates of $13,837, which was offset by favorable changes in general demographic experience of $312 and favorable changes in mortality assumptions of $66.
Amounts recognized in the consolidated balance sheets consist of:
December 31,December 31,
202320232022
U.S.Foreign
Noncurrent liability
December 31,December 31,
Noncurrent liability
2020201920202019
Current liability(46)(6)
Noncurrent liabilityNoncurrent liability(24,645)(35,979)(15,975)(15,878)
Accumulated other comprehensive income (loss)(4,463)8,687 1,075 (4,988)
Accumulated other comprehensive income (loss), net of tax
Net amount recognizedNet amount recognized$(29,108)$(27,292)$(14,946)$(20,872)
Amounts recognized in accumulated other comprehensive income (loss) consist of:
December 31,
December 31,
December 31,
2023
2023
2023
U.S.Foreign
Net (loss) gain
December 31,December 31,
Net (loss) gain
2020201920202019
Net gain (loss)13,964 10,922 (6,550)(7,634)
Net (loss) gain
Gross amount recognized
Gross amount recognized
Gross amount recognizedGross amount recognized13,964 10,922 (6,550)(7,634)
Deferred income taxesDeferred income taxes(18,427)(2,235)7,625 2,646 
Deferred income taxes
Deferred income taxes
Net amount recognized
Net amount recognized
Net amount recognizedNet amount recognized$(4,463)$8,687 $1,075 $(4,988)
Components of net periodic benefit cost consist of:
U.S.Foreign
Years ended
December 31,
Years ended
December 31,
202020192018202020192018
Service cost$769 $978 $1,019 $3,895 $3,210 $3,104 
Interest cost8,595 10,281 9,599 2,193 2,627 2,637 
Expected return on plan assets(12,547)(11,508)(12,851)(2,270)(2,427)(2,490)
Amortization of prior service cost24 
Amortization of net (gain) loss148 (29)49 
Curtailment gain recognized(576)
Settlement (gain) loss recognized78 49 (14)(1)
Net periodic expense (benefit)$(3,105)$(200)$(2,809)$3,952 $3,404 $3,300 
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


U.S.Foreign
Years ended
December 31,
Year ended
December 31,
2023202220212021
Interest cost$3,453 $2,569 $2,210 $255 
Expected return on plan assets(3,305)(3,433)(4,360)(255)
Settlement loss (gain) recognized61 38 (26)2,084 
Net periodic expense (benefit)$209 $(826)$(2,176)$2,084 
All components of net periodic benefit cost other than service cost are presented within other expense (income), net in the Company’s consolidated statements of income.
Components of other changes in plan assets and benefit obligations recognized in other comprehensive income consists of:
December 31,
20232022
Net (gain) loss$(1,461)$3,563 
Amortization or settlement recognition of net loss(61)(38)
Total recognized in other comprehensive (income) loss(1,522)3,525 
Total recognized in net periodic benefit cost and other comprehensive (income) loss$(1,313)$2,699 
The net amount of projected benefit obligation and plan assets for all underfunded and unfunded plans was $53,081$4,938 and $63,514$6,250 as of December 31, 20202023 and 2019,2022, respectively, and was classified as noncurrent liabilities. The total accumulated benefit obligation as of December 31, 2020

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ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and 2019 for the Company’s U.S. pension plans was $288,482 and $266,992, respectively. The total accumulated benefit obligation as of December 31, 2020 and 2019 for the Company’s foreign pension plans was $110,605 and $96,891, respectively.per share amounts)
The following table presents selected information about the Company’s pension plans with accumulated benefit obligations in excess of plan assets:
U.S.Foreign
December 31,December 31,
2020201920202019
Projected benefit obligation$288,482 $267,392 $92,679 82,662 
Accumulated benefit obligation288,482 266,992 88,394 80,021 
Fair value of plan assets263,837 231,413 76,658 68,104 

The following table presents selected information about the Company’s pension plans with projected benefit obligations and accumulated benefit obligations in excess of plan assets:
U.S.Foreign
December 31,December 31,
2020201920202019
December 31,December 31,
202320232022
Projected benefit obligationProjected benefit obligation$288,482 $267,392 $92,679 101,192 
Accumulated benefit obligation
Fair value of plan assetsFair value of plan assets263,837 231,413 76,658 85,308 
Significant weighted average assumptions used in determining the pension obligations include the following:
U.S.Foreign
December 31,December 31,
2020201920202019
December 31,December 31,
202320232022
Discount rateDiscount rate2.42 %3.32 %1.78 %2.34 %Discount rate5.17 %5.40 %
Rate of compensation increase(1)
Rate of compensation increase(1)
N/A3.00 %2.05 %2.07 %
Rate of compensation increase(1)
N/A
Significant weighted average assumptions used in determining net periodic benefit cost include the following:
U.S.Foreign
Years ended
December 31,
Years ended
December 31,
202020192018202020192018
Discount rate3.32 %4.32 %3.74 %2.34 %3.19 %3.11 %
Rate of compensation increase(1)
3.00 %3.00 %3.00 %2.07 %2.08 %2.22 %
Expected return on assets5.55 %6.00 %6.00 %2.82 %3.30 %3.37 %

U.S.Foreign
Years ended
December 31,
Year ended
December 31,
2023202220212021
Discount rate5.39 %2.90 %2.50 %1.20 %
Expected return on assets5.74 %4.90 %5.60 %1.20 %
Rate of compensation increase(1)
N/AN/AN/A1.75 %
(1)    Includes only plans not frozen to benefit accruals for the respective periods.
The discount rate for each of the U.S. plans was determined by utilizing a yield curve model. The model develops a spot rate curve based on the yields available from a broad-based universe of high quality corporate bonds. The discount rate is then set as the weighted average spot rate, using the respective plan’s expected benefit cash flows as the weights.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The investment objective for the U.S. plans is to generate returns sufficient to meet future obligations. The strategy to meet the objective includes generating attractive returns using higher returning assets such as equity securities and balancing risk using less volatile assets such as fixed income securities. The U.S. plans invest in an allocation of assets across the two broadly-defined financial asset categories of equity and fixed income securities. The target allocations for the plan assets across the 3two U.S. plans are as follows: 45%35% equity securities and 55% fixed income investments for the PQ Corporation Retirement Plan; 40% equity securities and 60%65% fixed income investments for the Eco Services Pension Equity Plan; and 60%30% equity securities and 40%70% fixed income investments for the Eco Services Hourly Pension Plan.
Similar considerations are applied to the investment objectives of the non-U.S. plans as well as the asset classes available in each location and any legal restrictions on plan investments.
The Company classifies plan assets based upon a fair value hierarchy (see Note 6 to these consolidated financial statements for further information). The classification ofwhere each asset within the hierarchy is based on the lowest level input that is significant to its measurement. The fair value hierarchy consists of three levels as follows:
Level 1—Values are unadjusted quoted prices for identical assets and liabilities in active markets accessible at the measurement date. Active markets provide pricing data for trades occurring at least weekly and include exchanges and dealer markets. Level 1 assets primarily include investments in publicly traded equity securities and mutual funds. These securities (or the underlying investments of the funds) are actively traded and valued using quoted prices for identical securities from the market exchanges.
Level 2—Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices from those willing to trade in markets that are not active, or other inputs that are observable or can be corroborated by market data for the term of the instrument. Such inputs include market interest rates and volatilities,
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


spreads and yield curves. Level 2 assets primarily consist of fixed-income securities and commingled funds that are not actively traded or whose underlying investments are valued using observable marketplace inputs. The fair value of plan assets invested in fixed-income securities is generally determined using valuation models that use observable inputs such as interest rates, bond yields, low-volume market quotes and quoted prices for similar assets. Plan assets that are invested in commingled funds are valued using a unit price or net asset value (“NAV”) that is based on the underlying investments of the fund.
Level 3—Certain inputs are unobservable (supported by little or no market activity) and significant to the fair value measurement. Unobservable inputs reflect the Company’s best estimate of what hypothetical market participants would use to determine a transaction price for the asset or liability at the reporting date. Level 3 assets include investments covered by insurance contracts and real estate funds valued using significant unobservable inputs.












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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following tables set forth by level, within the fair value hierarchy, plan assets at fair value:
December 31, 2020
TotalLevel 1Level 2Level 3
December 31, 2023December 31, 2023
TotalTotalLevel 1Level 2Level 3
Cash and cash equivalentsCash and cash equivalents$787 $787 $$
Equity securities:Equity securities:
U.S. investment funds
U.S. investment funds
U.S. investment fundsU.S. investment funds79,777 79,777 
International investment fundsInternational investment funds64,986 53,792 11,194 
Fixed income securities:Fixed income securities:
Government securitiesGovernment securities39,541 33,505 6,036 
Government securities
Government securities
Corporate bondsCorporate bonds16,771 16,668 103 
Investment fund bonds112,024 112,024 
Other:
Insurance contracts48,819 42,983 5,836 
TotalTotal$362,705 $184,529 $172,340 $5,836 
December 31, 2019
Total
TotalLevel 1Level 2Level 3
Total
December 31, 2022
December 31, 2022
December 31, 2022
TotalTotalLevel 1Level 2Level 3
Cash and cash equivalentsCash and cash equivalents$950 $950 $$
Equity securities:Equity securities:
U.S. investment funds
U.S. investment funds
U.S. investment fundsU.S. investment funds67,374 67,374 
International investment fundsInternational investment funds54,908 44,905 10,003 
Fixed income securities:Fixed income securities:
Government securitiesGovernment securities31,040 23,500 7,540 
Government securities
Government securities
Corporate bondsCorporate bonds14,900 14,782 118 
Investment fund bonds106,198 1,170 105,028 
Other:
Insurance contracts41,351 36,637 4,714 
TotalTotal$316,721 $152,681 $159,326 $4,714 
Total
Total

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The changes in the Level 3 pension plan assets are as follows for the years ended December 31:
Insurance Contracts
20202019
Beginning balance$4,714 $4,322 
Actual return on plan assets113 111 
Benefits paid(78)(69)
Contributions577 441 
Exchange rate changes and other510 (91)
Ending balance$5,836 $4,714 
The Company expects to contribute $446 to the U.S. pension plans and $3,559 to the foreign pension plans in 2021.
The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:
YearU.S.Foreign
2021$17,138 $2,204 
202216,200 2,384 
202316,278 2,610 
202416,254 2,898 
202515,968 3,144 
Years 2026-203078,910 19,027 
Certain of the Company’s foreign subsidiaries maintain other defined benefit plans that are consistent with statutory practices. These plans are not included in the disclosures above as they are not significant to the Company’s consolidated financial statements.
Supplemental Retirement Plans
The following tables summarize changes in the benefit obligation, plan assets and funded status of the Company’s defined benefit supplementary retirement plans, as well as the components of net periodic benefit cost, including key assumptions:
December 31,
20202019
Change in benefit obligation:
Benefit obligation at beginning of period$11,652 $11,868 
Interest cost352 465 
Benefits paid(1,001)(1,045)
Actuarial (gains) losses1,412 364 
Benefit obligation at end of period$12,415 $11,652 
Change in plan assets:
Fair value of plan assets at beginning of period$$
Employer contributions1,001 1,045 
Benefits paid(1,001)(1,045)
Fair value of plan assets at end of period$$
Funded status of the plans (underfunded)$(12,415)$(11,652)
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The total actuarial losses for the year ended December 31, 2020 across the Company’s supplemental retirement plans was $1,412, which was driven by declines in the discount rates of $871, declines in general demographic experience of $234 and declines in mortality assumptions of $307.
The total actuarial losses for the year ended December 31, 2019 across the Company’s supplemental retirement plans was $364, which was driven by declines in the discount rates of $971, which was offset by favorable changes in general demographic experience of $281 and favorable changes in mortality assumptions of $326.
Amounts recognized in the consolidated balance sheets consist of:
December 31,
20202019
Current liability$(1,039)$(1,019)
Noncurrent liability(11,376)(10,633)
Accumulated other comprehensive income633 253 
Net amount recognized$(11,782)$(11,399)
Amounts recognized in accumulated other comprehensive income consist of:
December 31,
20202019
Net gain$(731)$681 
Gross amount recognized(731)681 
Deferred income taxes1,364 (428)
Net amount recognized$633 $253 
Components of net periodic benefit cost consist of:
Years ended
December 31,
202020192018
Interest cost$352 $465 $450 
Amortization of net (gain) loss(10)
Net periodic expense$352 $455 $450 
Interest cost is presented within other expense (income), net in the Company’s consolidated statements of income.
The accumulated benefit obligation of the Company’s defined benefit supplemental retirement plans as of December 31, 2020 and 2019 was $12,415 and $11,652, respectively. The discount rate used in determining the defined benefit supplemental retirement plan obligation was 2.20% and 3.10% as of December 31, 2020 and 2019, respectively. The discount rate used in determining net periodic benefit cost was 3.10%, 4.20% and 3.60% for the years ended December 31, 2020, 2019 and 2018, respectively. There was no rate of compensation increase for any of the periods presented, as all future accruals were frozen for the defined benefit supplementary retirement plans as of December 31, 2006. There was no rate of interest crediting rate, as there are no cash balance accounts associated with these plans.
The Company expects to contribute $1,039 to the defined benefit supplementary retirement plans in 2021.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:
YearAmount
2021$1,039 
20221,010 
2023977 
2024944 
2025908 
Years 2025-20293,944 
YearAmount
2024$8,156 
20254,434 
20264,505 
20274,523 
20284,714 
Years 2029-203322,815 
The Company expects to contribute $1,680 to its pension plans in 2024.

Other Postretirement Benefit PlansPlan
The following tables summarize changes in the benefit obligation, plan assets and funded status of the Company’s other postretirement benefit plansplan as well as the components of net periodic benefit cost, including key assumptions:
December 31,December 31,
202320232022
Change in benefit obligation:
Benefit obligation at beginning of period
Benefit obligation at beginning of period
Benefit obligation at beginning of period
Interest cost
Interest cost
Interest cost
December 31,
Benefits paid
20202019
Change in benefit obligation:
Benefit obligation at beginning of period$3,452 $3,814 
Service cost10 
Interest cost99 152 
Employee contributions241 253 
Plan amendments(460)
Benefits paid
Benefits paidBenefits paid(658)(751)
Premiums paidPremiums paid(7)(7)
Premiums paid
Premiums paid
Actuarial (gains) losses225 412 
Translation adjustment15 29 
Actuarial loss/(gain)
Actuarial loss/(gain)
Actuarial loss/(gain)
Benefit obligation at end of period
Benefit obligation at end of period
Benefit obligation at end of periodBenefit obligation at end of period$3,367 $3,452 
Change in plan assets:Change in plan assets:
Fair value of plan assets at beginning of period
Change in plan assets:
Change in plan assets:
Employer contributionsEmployer contributions424 505 
Employee contributions241 253 
Employer contributions
Employer contributions
Benefits paid
Benefits paid
Benefits paidBenefits paid(658)(751)
Premiums paidPremiums paid(7)(7)
Premiums paid
Premiums paid
Fair value of plan assets at end of periodFair value of plan assets at end of period$$
Funded status of the plans (underfunded)$(3,367)$(3,452)
Funded status of the plan (underfunded)
Funded status of the plan (underfunded)
Funded status of the plan (underfunded)
The total actuarial lossesloss for the year ended December 31, 2020 across the Company’s U.S. plans2023 was $225,$9, which was driven by declinesdecreases in the discount rates of $235, and offset by favorable declines in general demographic experience of $1, which was offset by favorable changes in mortality assumptions of $8.
rates. The total actuarial lossesgain for the year ended December 31, 2019 across the Company’s U.S. plans2022 was $412,$192, which was driven by declinesincreases in the discount rates of $334 and declinesrates.
Amounts recognized in general demographic experience of $172, which was offset by favorable changes in mortality assumptions of $94.the consolidated balance sheets consist of:

December 31,
20232022
Current liability$(18)$(18)
Noncurrent liability(457)(428)
Accumulated other comprehensive income (loss), net of tax79 (299)
Net amount recognized$(396)$(745)
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Amounts recognized in the consolidated balance sheets consist of:
December 31,
20202019
Current liability$(443)$(537)
Noncurrent liability(2,924)(2,915)
Accumulated other comprehensive income680 524 
Net amount recognized$(2,687)$(2,928)
Amounts recognized in accumulated other comprehensive income consist of:
December 31,
20202019
December 31,December 31,
202320232022
Prior service creditPrior service credit$596 $828 
Net gain(182)67 
Net gain (loss)
Gross amount recognizedGross amount recognized414 895 
Deferred income taxesDeferred income taxes266 (371)
Net amount recognizedNet amount recognized$680 $524 
Components of net periodic benefit cost consist of:
Years ended
December 31,
202020192018
Service cost$$10 $16 
Interest cost99 152 150 
Amortization of prior service credit(232)(157)(112)
Amortization of net gain(29)(33)(26)
Net periodic expense (benefit)$(162)$(28)$28 
Years ended
December 31,
202320222021
Interest cost$24 $18 $17 
Amortization of prior service credit(125)(210)(232)
Amortization of net (gain) loss(2)
Net periodic benefit$(103)$(189)$(210)
All components of net periodic benefit cost other than service cost are presented within other expense (income), net in the Company’s consolidated statements of income.
Components of other changes in plan assets and benefit obligations recognized in other comprehensive income consists of:
December 31,
20232022
Net loss (gain)$$(192)
Amortization of prior service credit125 210 
Amortization or settlement recognition of net gain (loss)(3)
Total recognized in other comprehensive income136 15 
Total recognized in net periodic benefit cost and other comprehensive loss (income)$33 $(174)
The discount rate used in determining the other postretirement benefit plan obligation was 2.18%5.20% and 3.06%5.50% as of December 31, 20202023 and 2019,2022, respectively. The discount rate used in determining net periodic benefit cost was 3.06%5.50%, 4.09%2.90% and 3.53%2.60% for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. There was no rate of interest crediting rate, as there are no cash balance accounts associated with these plans.this plan.
Assumed health care cost trend rates were as follows:
December 31,
20202019
Immediate trend rate5.67%5.91%
Ultimate trend rate4.38%4.39%
Year that the rate reaches ultimate trend rate20382038
The Company expects to contribute $443 to the retiree health plans in 2021.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:
YearAmount
2021$443 
2022372 
2023297 
2024281 
2025163 
Years 2025-2029816 
YearAmount
2024$19 
202520 
202621 
202723 
202824 
Years 2028-2032150 
The Company expects to contribute $18 to the retiree health plan in 2024. There are no expected Medicare subsidy receipts expected in future periods.
Certain of the Company’s foreign subsidiaries maintain other postretirement benefit plans that are consistent with statutory practices. These plans are not included in the disclosures above as they are not significant to the Company’s consolidated financial statements.
Defined Contribution Plans
The Company also has defined contribution plans covering domestic employees of the Company and certain subsidiaries.a foreign subsidiary. The Company recorded expenses of $11,490, $11,366$7,015, $7,113 and $11,253$7,097 related to these plans for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
22.21. Stock-Based Compensation:
In May 2016, theThe Company adoptedhas an equity incentive plan namely the PQ Group Holdings Inc. Stock Incentive Plan (“2016 Plan”). Under the terms of the 2016 Plan, the Company was authorized to issue a total of 8,017,038 shares forunder which it grants common stock awards to employees, directors and affiliates of the Company. Immediately preceding the Company’s initial public offering (“IPO”) asAs of September 30, 2017, awards with respect to 7,644,518 shares of common stock had been issued under the 2016 Plan.
In connection with the IPO, the Company’s board of directors adopted the PQ Group Holdings Inc. 2017 Omnibus Incentive Plan (the “2017 Plan”). Subsequent to the IPO, all equity incentive awards have been granted under the 2017 Plan. The number of shares of common stock reserved for issuance under the 2017 Plan is 7,344,000 shares, which amount was increased by the 372,520 shares remaining available for grant under the 2016 Plan as of the 2017 Plan adoption. Shares that become available for issuance pursuant to the 2016 Plan as a result of forfeiture, cancellation or termination for no consideration will be available for future awards under the 2017 Plan. Shares underlying awards granted under the 2017 Plan that are forfeited, canceled, terminated for no consideration, settled in cash or are withheld for exercise, taxes, etc. will not be deemed as delivered and will also be available for future issuance under the 2017 Plan.
On April 30, 2020, the Company’s stockholders approved an amendment and restatement of the 2017 Plan to increase the number of shares available under it by an additional 9,000,000 shares and include more limited share recycling provisions, resulting in fewer shares recycled subsequent to the change. At December 31, 2020, 12,405,3152023, 9,498,538 shares of common stock were available for issuance under the 2017 Plan, after giving effect toplan. The Company historically has settled these awards through the issuance of new grants, forfeitures and other activity duringshares. Beginning on July 1, 2023, the year ended December 31, 2020.Company commenced reissuing shares from treasury in connection with the settlement of awards under its equity incentive plan.
2020 Modifications
Sale of Performance Chemicals
As more fully described in Note 7 to these consolidated financial statements, the Company’s Board of Directors declared a special cash dividend of $1.80$3.20 per share to stockholders of record as of the close of business on December 21, 2020.August 12, 2021. The dividend declaration also included a dividend equivalent for all unvested restricted stock units, performance stock units and restricted stock awards (collectively, the “awards”) as of December 21, 2020August 23, 2021 equal to $1.80$3.20 per award. Additionally, the Company’s Board of Directors approved a reduction in the strike price on all outstanding vested and unvested stock options by the amount of the dividend payment.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Further, with respect to stock options and awards held by employees of Performance MaterialsChemicals at the time of the sale (see Note 4 to these consolidated financial statements)statements for further information), the Company’s Board of Directors approved modifications to the post-termination stock option exercise, and stock option and award vesting periods. The modifications provideprovided that all stock options held by Performance MaterialsChemicals employees that were vested as of the date of the sale are eligible to be exercised for a period of one year from the date of the sale, through December 14, 2021.sale. Additionally, modifications to unvested stock options and awards allowallowed holders to continue to vest in those instruments under the original terms of the instruments for a period of up to one year from the date of sale, through December 14 ,2021.depending on the award. The terms of the modifications to the Performance MaterialsChemicals awards are contingent upon the employee providing continued service to the Purchaser.Buyer.
The modifications impacted all holders of the Company’s stock optionoptions and awards, and along with modifications for a retired executive during the same period, resulted in additionalincremental stock-based compensation expense recognized at the time of $2,144 forthe modifications of $6,667 during the year ended December 31, 2020.2021. Of this amount, $654$2,635 was included in loss from discontinued operations, net of tax on the Company’s consolidated statements of income.


F-60



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Stock Options
Under both the 2016 and 2017 Plans, theThe Company has issued stock options to purchase PQ Group HoldingsEcovyst Inc. common stock as part of its equity incentive compensation program. There are various vesting conditions associated with the stock options issued underprior to the 2016 Plan,launch of the Company’s initial public offering (“IPO”) in September 2017, including satisfaction of certain service and/or performance based conditions. UnderSubsequent to the 2017 Plan,IPO, the Company’s stock option grants have been subject to graded vesting conditions based on service. The maximum contractual term of the Company’s stock options is ten years.
The following table summarizes the activity of common stock options for the period from December 31, 20172020 through the year ended December 31, 2020:2023:
Number of OptionsWeighted Average Exercise PriceWeighted Average Remaining Contractual Term (in years)Aggregate Intrinsic Value
(in thousands)
Outstanding at December 31, 20172,715,170 $10.18 
Granted241,316 $17.50 
Exercised(15,332)$8.51 
Outstanding at December 31, 20182,941,154 $10.79 
Exercised(492,498)$8.07 
Forfeited(74,299)$8.16 
Outstanding at December 31, 20192,374,357 $11.44 
Exercised(43,250)$8.64 
Forfeited(157,776)$9.23 
Outstanding at December 31, 20202,173,331 $9.84 (1)5.94$10,452 
Exercisable at December 31, 20201,796,519 $10.50 (1)6.00$7,611 

Number of OptionsWeighted Average Exercise PriceWeighted Average Remaining Contractual Term (in years)Aggregate Intrinsic Value
(in thousands)
Outstanding at December 31, 20202,173,331 $9.84 (1)
Exercised(208,500)$3.56 
Forfeited(39,996)$3.53 
Expired(40,484)$14.52 
Outstanding at December 31, 20211,884,351 $6.99 (2)
Exercised(199,970)$3.06 
Forfeited(51,860)$3.98 
Expired(111,524)$11.97 
Outstanding at December 31, 20221,520,997 $7.24 
Exercised(197,941)$2.58 
Forfeited(284,956)$3.39 
Expired(328,677)$12.36 
Outstanding at December 31, 2023709,423 $7.73 3.14$2,322 
Exercisable at December 31, 2023709,423 $7.73 3.14$2,322 
(1)    ReflectsOn December 14, 2020, the Company’s Board of Directors declared a special cash dividend of $1.80 per share to the stockholders of record at the close of business on December 31, 2020, using after tax cash proceeds and cash on hand from the sale of the Performance Materials business. This reflects the impact of the reduction in the strike price on all outstanding vested and unvested stock options by $1.80 per share.
(2)Reflects the impact of the reduction in the strike price on all outstanding vested and unvested stock options by $3.20 per share as described above.

The aggregate intrinsic value per the above table represents the difference between the fair value the Company’s common stock on the last trading day of the reporting period (determined in accordance with the plan terms) and the exercise price of in-the-money stock options multiplied by the respective number of stock options as of that date. The total intrinsic value of stock options exercised during the year ended December 31, 2019were $1,693, $1,306, and the resulting tax benefits recognized by the Company were $3,615; the total intrinsic value of stock options exercised$1,767 during the years ended December 31, 20202023, 2022 and 2018 was not material for either year.2021 respectively. Additionally, cash proceeds received by the Company from the exercise of stock options were $3,975 during the year ended December 31, 2019 and were not material for the years ended December 31, 20202023, 2022 and 2018.2021 respectively.
There were no stock option awards granted during the years ended December 31, 2023, 2022 and 2021. The Company uses the Black-Scholes option pricing model to determine the fair value of its stock option grants.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


There were no stock option awards granted during the years ended December 31, 2020 and 2019. The fair values of PQ Group Holdings common stock options granted during the year ended December 31, 2018 were determined on the respective grant dates using a Black-Scholes option pricing model with the following weighted-average assumptions:
2018
Expected term (in years)5.75
Expected volatility26.38 %
Risk-free interest rate2.86 %
Expected dividend yield0.00 %
Weighted average grant date fair value of options granted$5.47 
With respect to the stock option awards granted during the year ended December 31, 2018, the Company used the simplified method for plain vanilla stock options to estimate the expected term assumption, since the Company lacked sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term due to the limited period of time its common stock has been publicly traded. The application of the simplified method involves calculating the average of the time-to-vesting period and the total contractual life of the options. The expected volatility assumption was compared to a range of the actual stock price volatility of a peer group of companies. The risk-free interest rate was based on U.S. Treasury rates in effect at the time of the grant commensurate with the expected term.
Restricted Stock Awards, Restricted Stock Units and Performance Stock Units
Restricted Stock Awards
The Company has granted restricted stock awards subject to vesting conditions based on (1) service only, (2) performance only, or (3) a combination of service and performance conditions, dependent on which event occurs first. The vesting requirements for the majority of these awards were based upon the achievement of a performance condition. As defined in the award agreements, each award subject to the performance condition fully vests upon the occurrence of a defined liquidity event upon which certain investment funds affiliated with CCMP receive proceeds exceeding certain thresholds. Although achievement of the performance condition is subject to continued service with the Company, the terms of awards issued with performance conditions stipulate that the performance vesting condition can be attained for a period of six months following separation from service under certain circumstances, depending on the means of separation from the Company and subject to other factors such as individual separation agreements. The same performance vesting condition for the Company’s restricted stock awards also governs the achievement of the performance vesting condition for the Company’s stock options. As of December 31, 2020,2023, all of the Company’s outstanding unvested restricted stock awards were subject to the performance vesting condition.
In addition to restricted stock awards, the Company has granted restricted stock units and performance stock units as part of its equity incentive compensation program.
Restricted Stock Units
Each restricted stock unit provides the recipient with the right to receive a share of common stock subject to graded vesting terms based on service, which generally requires one year of service for members of the Company’s board of directors and three years of service for employees. The value of the restricted stock units granted by the Company is based on the average of the high and low trading prices of the Company’s common stock on the NYSE on the preceding trading day, in accordance with the Company’s policy for valuing such awards. Compensation expense related to the restricted stock units is recognized on a straight-line basis over the respective vesting period.
ThePerformance Stock Units
2023 Grants
During the year ended December 31, 2023, the Company granted 721,537 performance stock units (at target) under its equity incentive plan. The performance stock units granted during the year ended December 31, 2019, which2023 provide the recipients with the right to receive shares of common stock dependent on the achievement of two Company-specific financial performance targetsa TSR goal, and are generally subject to the provision of service through the vesting date. Attainmentdate of the metricsaward. The performance period for the TSR goal is measured based on the average levels of achievement across the three-yeara three-year performance period from January 1, 20192023 through December 31, 2021.2025. The TSR goal is based on the Company’s actual TSR percentage increase over the performance period. Depending on the Company’s performance againstrelative to the pre-determined thresholds for achievement,TSR goal, each performance stock unit award holderrecipient is eligible to earnreceive a percentage of the target number of shares granted to the holder,recipient, ranging from 0zero to 200%. The performance stock units, to the extent earned, will vest on the date the Company’s compensation and governance committeeCompensation Committee certifies the achievement of the performance metricsmetric for the three-year period ending December 31, 2021,2025 which will occur subsequent to the end of the performance period but beforeand after the Company files its annual consolidated financial statements for the year then ended.ending December 31, 2025. The Company used a Monte Carlo simulation to estimate the $12.27 weighted average fair value of the awards for the year ended December 31, 2023.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


The2022 Grants
During the year ended December 31, 2022, the Company also granted 295,132 performance stock units (at target) under its equity incentive plan. The performance stock units granted during the year ended December 31, 2020. The performance stock units granted in 20202022 provide the recipients with the right to receive shares of common stock dependent 50% on the achievement of a Company-specific financial performance target and 50% on a total shareholder return (“TSR”)TSR goal, and are generally subject to the provision of service through the vesting date of the award. The Company-specific financial performance target andperiod for the TSR goal are measured independently of each other, but achievement of both of the metrics is measured based on the samea three-year performance period from January 1, 20202022 through December 31, 2022.2024. The TSR goal is based on the Company’s relativeactual TSR performance against the companies included in the Russell 2000 Indexpercentage increase over the performance period. Achievement of the Company-specific financial performance target is measured based on the average levels of achievement across the performance period. Depending on the Company’s performance againstrelative to the predetermined thresholdsTSR goal, each performance stock unit award recipient is eligible to receive a percentage of the target number of shares granted to the recipient, ranging from zero to 200%. The performance stock units, to the extent earned, will vest on the date the Compensation Committee certifies the achievement of the performance metric for the three-year period ending December 31, 2024, which will occur subsequent to the end of the performance period and after the Company files its annual consolidated financial statements for the year ending December 31, 2024. The Company used a Monte Carlo simulation to estimate the $8.82 weighted average fair value of the awards.
2021 Grants
The Company granted 211,985 performance stock units (at target) during the year ended December 31, 2021 that provide the recipients with the right to receive shares of common stock dependent on the achievement of a TSR goal, and are generally subject to the provision of service through the vesting date of the award. The performance period for the TSR goal is measured based on a three-year performance period from January 1, 2021 through December 31, 2023. The TSR goal is based on the Company’s actual TSR percentage increase over the performance period. Depending on the Company’s performance relative to the TSR goal, each performance stock unit award recipient is eligible to earn a percentage of the target number of shares granted to the recipient, ranging from zero to 200%. The performance stock units, to the extent earned, will vest on the date the Company’s compensationCompensation Committee certifies the achievement of the performance metric for the three-year period ending December 31, 2023, which will occur subsequent to the end of the performance period and governance committee certifiesafter the Company files its annual consolidated financial statements for the year ending December 31, 2023. The Company used a Monte Carlo simulation to estimate the $13.21 weighted average fair value of the awards.
2020 Grants
In March 2023, the Compensation Committee certified the achievement of the performance metrics for the three-year period ending December 31, 2022, which will occur subsequentrelated to the end of the performance period but before the Company files its annual consolidated financial statements for the year then ended.
The value of the portions of the performance stock units (“PSUs”) granted during the yearsyear ended December 31, 2020 and 2019 eligible to2020. Fifty percent of the target number of such PSUs could be earned baseddepending on the achievement of theperformance against a Company-specific financial performance targets was measured on the same basis as thattarget, and 50% of the restricted stock units,target number of such PSUs could be earned depending on performance against a TSR goal, subject to the provision of service through the vesting date of the awards. The Company-specific financial performance target and based onthe TSR goal were measured independently of each other, and each PSU award recipient was eligible to earn a percentage of the target number of shares granted; becausegranted to the performance vesting conditions affectrecipient, ranging from zero to 200%. The awards vested during the abilityyear ended December 31, 2023 as follows: 53.3% of the recipientstarget with respect to vest in the awards, they are not factored into the fair value measure of the award. Compensation expense related to such performance stock units is recognized ratably over the requisite service period, and the Company must assess the probability that the performance conditions will be met each reporting period and the level at which they are estimated to be attained. Should the probability assessment change during a given reporting period, the total compensation cost (both recognized and unrecognized) will be adjusted to reflect the revised assessment.
The TSR goal, which determines how much of the 50% of the performance stock units granted during 2020 may be earned, is considered a market condition as opposed to a vesting condition. Because a market condition is not considered a vesting condition, it is reflected in the grant date fair value of an award and the associated compensation cost based on the fair value of the award is recognized over the performance period, regardless of whether the Company actually achieves the market condition or the level of achievement, as long as service is provided by the recipient. The Company used a Monte Carlo simulation to estimate the fair value of the portion of the awardsPSU award subject to the Company-specific financial measure, and 56.0% of target with respect to the portion of the PSU award subject to the TSR goal.
Weighted Average Assumptions
The following table providesshows the weighted average assumptions used to determine the grant date fair valuefor each of the market condition-dependent / TSR goal-based portion of the Company’s performance stock units granted during 2020 using a Monte Carlo simulation:unvested grants:

Expected dividend yield%
Risk-free interest rate1.56 %
Expected volatility28.57 %
Expected term (in years)2.95
Grant date fair value$24.11 

2023 Grants2022 Grants2021 Grants
Expected dividend yield— %— %— %
Risk-free interest rate3.80 %1.51 %0.20 %
Expected volatility48.82 %44.51 %41.70 %
Expected term (in years)2.962.912.95
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Award Activity
The following table summarizes the activity of restricted stock awards, restricted stock units and performance stock units for the period from December 31, 20172020 through the year ended December 31, 2020:2023:
Restricted Stock AwardsRestricted Stock UnitsPerformance Stock Units
Number of
Shares
Weighted Average Grant Date Fair Value (per share)Number of
Units
Weighted Average Grant Date Fair Value (per share)Number of
Units
Weighted Average Grant Date Fair Value (per share)
Nonvested as of December 31, 20172,096,637 $8.87 1,654,690 $16.97 $
Granted14,498 $13.80 161,598 $16.12 $
Vested(223,298)$12.18 (797,859)$16.97 $
Forfeited(117,177)$8.04 (19,643)$16.97 $
Nonvested as of December 31, 20181,770,660 $8.39 998,786 $16.83 $
Granted$1,245,628 $15.42 550,676 $15.41 
Vested(97,140)$12.32 (541,383)$16.68 $
Forfeited(127,390)$8.04 (74,595)$16.09 $
Nonvested as of December 31, 20191,546,130 $8.17 1,628,436 $15.83 550,676 $15.41 
Granted$1,158,605 $16.60 456,311 $20.29 
Vested(29,760)$12.32 (816,866)$16.17 $
Forfeited(619,355)$8.04 (129,036)$16.28 (41,251)$15.95 
Nonvested as of December 31, 2020897,015 $13.80 (1)1,841,139 $16.14 965,736 $17.69 

Restricted Stock AwardsRestricted Stock UnitsPerformance Stock Units
Number of
Shares
Weighted Average Grant Date Fair Value (per share)Number of
Units
Weighted Average Grant Date Fair Value (per share)Number of
Units
Weighted Average Grant Date Fair Value (per share)
Nonvested as of December 31, 2020897,015 $13.80 (1)1,841,139 $16.14 965,736 (2)$17.69 
Granted— $— 1,697,623 $15.39 211,985 $13.21 
Vested— $— (773,619)$16.00 — $— 
Forfeited(263,291)$15.31 (1)(257,722)$16.03 (60,166)$17.11 
Nonvested as of December 31, 2021633,724 $15.84 (1)2,507,421 $15.68 1,117,555 (2)$16.91 
Granted— $— 2,779,690 $10.28 295,132 $8.82 
Vested(84,903)$8.83 (1,550,969)$15.08 (496,442)$15.41 
Forfeited(271,765)$15.84 (1,271,424)$12.27 (276,713)$12.33 
Nonvested as of December 31, 2022277,056 $15.66 2,464,718 $11.73 639,532 (2)$16.32 
Granted5,081 $9.84 1,195,835 $9.84 721,537 $12.28 
Vested(5,081)$9.84 (1,436,301)$11.84 (200,204)$20.16 
Forfeited(277,056)$15.66 (261,424)$11.27 (201,648)$18.57 
Nonvested as of December 31, 2023— $— 1,962,828 $10.55 959,217 (2)$11.84 
(1)    Reflects the impact of the modification on all unvested restricted stock awards as described above.
(2)    Based on target.
The total fair value of restricted stock awards that vested during the years ended December 31, 2020, 20192023, 2022 and 20182021 was $510, $1,543$50, $749 and $3,493,zero, respectively. The total fair value of restricted stock units that vested during the years ended December 31, 2020, 20192023, 2022 and 20182021 was $11,269, $8,493$17,008, $15,579 and $13,628,$11,507, respectively. NoneThe total fair value of the Company’s performance stock units that vested during the years ended December 31, 2020, 20192023, 2022 and 2018.2021 was $4,035, $5,277 and zero, respectively.
Total Stock-Based Compensation Expense
For the years ended December 31, 2020, 20192023, 2022 and 2018,2021, total stock-based compensation expense for the Company on a continuing operations basis was $21,527, $16,212$16,031, $20,632 and $18,419,$31,838, respectively. The associated income tax benefit recognized in the consolidated statements of income for the years ended December 31, 2020, 20192023, 2022 and 20182021 was $5,664, $3,543$1,826, $2,799 and $4,671.$7,735, respectively.
As of December 31, 2020,2023, there was no unrecognized compensation cost related to nonvested stock options or nonvested restricted stock awards subject to service vesting conditions. As of December 31, 2020, there was $20,511 of total2023, unrecognized compensation cost related to nonvestedwas $9,760 for restricted stock units and $10,982 of total unrecognized compensation cost related to nonvested$6,360 for performance stock units considered probable of vesting.units. The weighted-average period over which these costs are expected to be recognized at December 31, 20202023 is 1.591.69 years for the restricted stock units and 1.632.08 years for the performance stock units. NaNNo expense has been recognized for any restricted stock awards or stock options subject to the performance condition for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, and no expense has been recognized for any restricted stock awards subject to the performance condition for the years ended December 31, 2023 and 2022, as the performance-based criteria was not achieved nor considered probable of achievement.

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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


RestrictedPrior to the Company’s IPO, the Company issued restricted stock awards and stock options issued with performance conditions vestthat were based on the occurrence of a defined liquidity event upon which certain investment funds affiliated with CCMP receive proceeds exceeding certaindefined thresholds. All of the Company’s equity incentive awards with performance-based vesting, whether in the form of stock options or restricted stock awards, are subject to achievement of the same performance condition. If an exit event occurs that exceedsexceeded the defined threshold, then all performance-basedof these restricted stock awards and stock options of the Company vest 100%, with no potential for partial vesting or excess achievement. If an exit event or events occuroccurs with no further possibility of meeting the defined threshold, then all of the Company’s restricted stock awards and stock options subject to the performance vesting condition will be forfeited. In addition to the defined liquidity event, subsequent to the Company’s IPO, the performance vesting condition can also be achieved if the average closing trading price of the Company’s common stock on the NYSE over any consecutive ten-day trading period equals or exceeds a price that would be equivalent to the achievement of the threshold proceeds to CCMP.CCMP, a former stockholder. When a liquidity event occurred on March 7, 2023, the investment funds affiliated with CCMP received proceeds that did not exceed the defined thresholds. As a result, all of the Company’s restricted stock awards and stock options subject to the performance condition were forfeited and cancelled. See Note 2322 to these consolidated financial statements for further information on the number of restricted stock awards and stock options outstanding subject to performance-based vesting.
23.22. Earnings per Share:
Basic earnings per share is calculated as income (loss) available to common stockholders, divided by the weighted average number of common shares outstanding during the period. The weighted average number of common shares outstanding during the period for the computation of basic earnings per share excludes restricted stock awards that have legally been issued but are nonvested during the period, as the sale of these shares is prohibited pending satisfaction of certain vesting conditions by the award recipients in order to earn the rights to the shares (see Note 2221 to these consolidated financial statements for further information regarding outstanding nonvested restricted stock awards).
Diluted earnings per share is calculated as income (loss) available to common stockholders, divided by the weighted average number of common and potential common shares outstanding during the period, if dilutive. Potential common shares reflect (1) unvested restricted stock awards and restricted stock units with service vesting conditions, (2) performance stock units with vesting conditions considered probable of achievement and (3) options to purchase common stock, all of which have been included in the diluted earnings per share calculation using the treasury stock method.
The reconciliation from basic to diluted weighted average shares outstanding is as follows:
Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
Weighted average shares outstanding – BasicWeighted average shares outstanding – Basic135,528,977 134,389,667 133,380,567 
Dilutive effect of unvested common shares and restricted stock units with service conditions, performance stock units considered probable of vesting and assumed stock option exercises and conversionsDilutive effect of unvested common shares and restricted stock units with service conditions, performance stock units considered probable of vesting and assumed stock option exercises and conversions01,159,0271,304,364Dilutive effect of unvested common shares and restricted stock units with service conditions, performance stock units considered probable of vesting and assumed stock option exercises and conversions1,120,4951,486,8501,541,547
Weighted average shares outstanding – DilutedWeighted average shares outstanding – Diluted135,528,977 135,548,694 134,684,931 
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Basic and diluted earningsincome (loss) per share are calculated as follows:
Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
Numerator:Numerator:
Net (loss) income attributable to PQ Group Holdings Inc.$(278,771)$79,539 $58,300 
Income from continuing operations attributable to Ecovyst Inc.
Income from continuing operations attributable to Ecovyst Inc.
Income from continuing operations attributable to Ecovyst Inc.
Income (loss) from discontinued operations attributable to Ecovyst Inc.
Net income (loss) attributable to Ecovyst Inc.
Denominator:Denominator:
Denominator:
Denominator:
Weighted average shares outstanding – Basic
Weighted average shares outstanding – Basic
Weighted average shares outstanding – BasicWeighted average shares outstanding – Basic135,528,977 134,389,667 133,380,567 
Weighted average shares outstanding – DilutedWeighted average shares outstanding – Diluted135,528,977 135,548,694 134,684,931 
Net (loss) income per share:
Basic (loss) income per share$(2.06)$0.59 $0.44 
Diluted (loss) income per share$(2.06)$0.59 $0.43 
Net income (loss) per share:
Net income (loss) per share:
Net income (loss) per share:
Basic income per share - continuing operations
Basic income per share - continuing operations
Basic income per share - continuing operations
Diluted income per share - continuing operations
Basic income (loss) per share - discontinued operations
Diluted income (loss) per share - discontinued operations
Basic income (loss) per share
Diluted income (loss) per share
The table below presents the details of the Company’s weighted average equity-based awards outstanding during each respective year that were excluded from the calculation of diluted earnings per share:
Years ended
December 31,
202020192018
Restricted stock awards with performance only targets not yet achieved1,225,8551,584,980 1,643,760 
Stock options with performance only targets not yet achieved507,461558,283 586,253 
Anti-dilutive restricted stock awards, restricted stock units and performance stock units1,453,12005,162 
Anti-dilutive stock options846,049863,063 717,612 

Years ended
December 31,
202320222021
Restricted stock awards with performance only targets not yet achieved— 539,688 839,432 
Stock options with performance only targets not yet achieved51,526 309,984 373,105 
Anti-dilutive restricted stock units and performance stock units286,729 20,497 6,214 
Anti-dilutive stock options508,623 776,594 244,473 
Restricted stock awards and stock options with performance only vesting conditions arewere not included in the dilution calculation, as the performance targets have not been achieved nor were probable of achievement as of the end of the respective periods. These awards and stock options were canceled on March 7, 2023 (see Note 21 of these consolidated financial statements for further information). Certain stock options to purchase shares of common stock were excluded from the computation of diluted earnings per share for the respective periods because the combination of the options’ exercise price and remaining unamortized stock-based compensation expense was greater than the average market price of the common shares. Anti-dilutiveThese stock options and anti-dilutive awards are not included in the dilution calculation, as their inclusion would have the effect of increasing diluted income per share or reducing diluted loss per share.
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24.



ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


23. Commitments and Contingent Liabilities:
Environmental Contingencies
There is a risk of environmental impact in chemicalthe Company’s manufacturing operations. The Company’s environmental policies and practices are designed to comply with existing laws and regulations and to minimize the possibility of significant environmental impact. The Company is also subject to various other lawsuits and claims with respect to matters such as governmental regulations, labor and other actions arising out of the normal course of business. While management believesAll claims that the liabilities resulting from such lawsuitsare probable and claims are not probable or reasonably estimable certain accruals have been reflectedaccrued for in the Company’s consolidated financial statements, some of whichstatements. When these matters are described in detail within this note.

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except shareultimately concluded and per share amounts)


In 2008,determined, the Company sold property located in Tacoma, Washington to the local port authority. In 2009, the port authority commissioned an environmental investigationbelieves that there will be no material adverse effect on its consolidated financial position, results of portions of the property. In 2010, the port authority advised the Company of alleged soil and groundwater contamination on the property and alleged the Company liable for certain conditions. The Company received and reviewed the environmental investigation documentation and determined it may have liability with respect to some, but not all, of the alleged contamination. At this time, remedial plans are in the feasibility study stage and have not been agreed uponoperations or presented to Washington State for consideration. As of December 31, 2020 and 2019, the Company has recorded reserves of $1,278 and $1,045, respectively, for costs related to this potential liability.liquidity.
The Company has recorded a reserve of $510$313 and $770$306 as of December 31, 20202023 and 2019,2022, respectively, to address remaining subsurface remedial and wetlands/marsh management activities at the Company’s Martinez, CA site. Although currently a sulfuric acid regeneration plant, the site originally was operated by Mountain Copper Company (“Mococo”) as a copper smelter. Also, the site sold iron pyrite to various customers and allowed their customers to deposit waste iron pyrite cinder and slag on the site. The property is adjacent to Peyton Slough, where Mococo had a permitted discharge point from its process. In 1997, the San Francisco Bay Regional Water Quality Control Board (“RWQCB”) required characterization and remediation of Peyton Slough for Copper, Zinc and Acidic Soils. Various remediation activities were undertaken and completed, and the site has received final concurrence from the Army Corps with respect to the completed work. The RWQCB has agreed that Eco ServicesEcoservices, has achieved the goals for vegetative cover. The current marsh condition is being sustained by the opening and subsequent closing of the tide gates on a once per yearperiodic basis. The Company is continuing to indicate to the RWQCB that a plan to involve Contra Costa Countyimpacted stakeholders and to work towards development of an alliance for operating, maintaining and funding the tide gates is appropriate. The Company is currently in the process of obtainingapplying for modified permits for the long-term maintenance of Peyton Slough.
As of December 31, 20202023 and 2019,2022, the Company has recorded a reserve of $427$121 and $709,$102, respectively, for subsurface remediation, andincluding the Soil Vapor Extraction Project, at the Company’s Dominguez, CA site. In the 1980s and 1990s, the EPA and the Los Angeles Regional Water Quality Control Board conducted investigations of the site due to historic chlorinated pesticide and chlorinated solvent use. Soil and groundwater beneath the site were impacted by chlorinated solvents and associated breakdown products, petroleum hydrocarbons, chlorinated pesticides and metals. A Corrective Measures Plan approved in October 2011 requires (1) soil vapor extraction (“SVE”) in affected areas, (2) covering of unpaved areas containing pesticide impacted soil, and (3) annual groundwater monitoring of the perched water-bearing zone. Annual groundwater sampling and soil vapor monitoring indicates that the SVE system has been effective in reducing subsurface contaminant levels. The Company is moving in the direction of rendering the SVE system dormant and potentially closing this matter within the next few years following rebound testing, including the preparation of an updated long-term Operations and Maintenance Plancleanup goals as requested by the California Department of Toxic Substances Control.
Purchase Commitments
The Company has entered into short and long-term purchase commitments for various key raw materials and energy requirements. The purchase obligations include agreements with various suppliers to purchase goods that are enforceable and legally binding, and that specify all significant terms. Purchases under these agreements are expected to be as follows:
YearAmount
2021$13,695 
20223,263 
20231,654 
20241,186 
20251,183 
Thereafter995 
$21,976 

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Letters of Credit
At December 31, 2020,2023, the Company had outstanding letters of credit of $18,190.$4,043. Letters of credit are guarantees of payment to third parties. The Company’s letters of credit are used primarily as collateral for various items, including environmental, energy and insurance payments. The letters of credit are supported by the Company’s ABL facility.
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25. Long-term Supply Contract:
As part of Solvay’s 2004 sale of its Specialty Phosphates business, Solvay agreed to continue to supply sulfuric acid to a customer in support of the phosphoric acid production for its specialty phosphates business under a preexisting supply agreement. This non-cancelable agreement extends to 2031, and was assumed by the Company in connection with the 2014 Acquisition.
The liability associated with this unfavorable supply agreement was recorded at a fair value of $27,300 in connection with the 2014 Acquisition. The fair value was determined using the income method based on the differential of the estimated margin over the cost of the sulfuric acid per the market as compared to the below market margin included in the supply agreement, and the application of this excess differential to the anticipated volumes over the term of the agreement using a commensurate discount rate. In December 2018, the customer to the supply agreement ceased production and closed the facility which utilized the Company’s sulfuric acid under the agreement. As such, all orders for sulfuric acid under the agreement were discontinued in December 2018. Although the agreement is not cancelable, the likelihood is remote that the Company will be further obligated to supply the customer under the agreement since this is the only facility subject to the agreement, and there are no transfer or substitution rights under the agreement to another facility. As a result, the Company wrote-off the remaining supply contract liability of $20,612 at December 31, 2018 and recorded a corresponding gain to other operating expense, net for the year ended December 31, 2018.

26.


ECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


24. Related Party Transactions:
The Company maintains certain policies and procedures for the review, approval and ratification of related party transactions to ensure that all transactions with selected parties are fair, reasonable and in the Company’s best interests. All significant relationships and transactions are separately identified by management if they meet the definition of a related party or a related party transaction. Related party transactions include transactions that occurred during the year, or are currently proposed, in which the Company was or will be a participant, and for which any related person had or will have a direct or indirect material interest. All related party transactions are reviewed, approved and documented by the appropriate level of the Company’s management in accordance with these policies and procedures.
Joint Venture Agreement
The Company entered into a joint venture agreement (the “ZI Partnership Agreement”) in 1988 with Shell Catalysts & Technologies, an affiliate of Royal Dutch Shell plc, to form Zeolyst International, a 50/50 joint venture partnership (the “Partnership”). Under the terms of the ZI Partnership Agreement, the Partnership leases certain land used in its Kansas City production facilities from PQ Corporation.Ecovyst. This lease, which has been recorded as an operating lease, provided for rental payments to the Company of $310, $305$310 and $295$310 during the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. The terms of this lease are evergreen as long as the ZI Partnership Agreement is in place. The Partnership recognizedhad $236 sales to the Company’s former Performance Materials business of $861, $803 and $645Company during the year ended December 31, 2023, while no sales were made to the Company during the years ended December 31, 2020, 20192022 and 2018,2021, respectively.
The Partnership purchases certain of its raw materials from the Company and is charged for various manufacturing costs incurred at the Company’s Kansas City production facility. The amount of these costs charged to the Partnership were $16,065, $19,976$20,594, $23,699 and $16,869$21,778 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. Certain administrative, marketing, engineering, management-related, and research and development services are provided to the Partnership by the Company. During the years ended December 31, 2020, 20192023, 2022 and 2018,2021, the Partnership was charged $12,229, $12,871$14,758, $13,908 and $12,727,$11,406, respectively, for these services. In addition, the Partnership was charged certain product demonstration costs of $1,853, $2,204$1,819, $1,621 and $1,768$924 during the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. These charges to the Partnership are recorded as reductions in either cost of goods sold or selling, general and administrative expenses in the consolidated statements of income, depending on the nature of the expenditures.
As of December 31, 2023 and 2022, the Company had an accounts receivable from the Partnership of $3,164 and $2,636. As of December 31, 2023 and 2022, there were no accounts payable with the Partnership.
Other
From time to time, the Company makes sales to and purchases raw materials from portfolio companies of funds that are affiliated with INEOS Capital Partners. The Company had sales of $3,395, $10,880 and $3,923 to companies affiliated with INEOS Capital Partners during the years ended December 31, 2023, 2022, and December 31, 2021, respectively.
Purchases of raw materials from companies affiliated with INEOS Capital Partners were immaterial for the years ended December 31, 2023, 2022 and 2021.
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PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


Other
From time to time, the Company makes sales to and purchases raw materials from portfolio companies of funds that are affiliated with CCMP and companies that are affiliated with INEOS Capital Partners. The Company had sales of $12,672, $4,841 and $5,587 to companies affiliated with INEOS Capital Partners during the years ended December 31, 2020, 2019, and December 31, 2018 respectively. The Company purchased raw materials of $1,222, $1,203 and $1,495 to companies affiliated with INEOS Capital Partners during the years ended December 31, 2020, 2019, and December 31, 2018 respectively.

27. Quarterly Financial Summary (Unaudited):
The following tables summarize the Company’s quarterly financial results during the years ended December 31, 2020 and 2019:
2020
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
Sales$295,813 $254,896 $275,149 $281,505 
Gross profit72,295 63,662 70,172 67,227 
Operating income29,214 20,175 33,310 (245,623)
Net income (loss) from continuing operations6,299 7,896 (6,956)(186,702)
Net income (loss) from discontinued operations, net of tax(5,790)8,351 11,392 (116,194)
Net (loss) income509 16,247 4,436 (302,896)
Less: Net (loss) income attributable to the noncontrolling interest - continuing operations234 250 201 (3,883)
Less: Net income (loss) attributable to the noncontrolling interest - discontinued operations51 71 97 46 
Net income (loss) attributable to PQ Group Holdings Inc.224 15,926 4,138 (299,059)
Earnings (loss) per common share - basic
Continuing operations$0.04 $0.06 $(0.05)$(1.35)
Discontinued operations$(0.04)$0.06 $0.08 $(0.86)
Net earnings (loss) per share - basic$$0.12 $0.03 $(2.21)
Earnings (loss) per common share - diluted:
Continuing operations$0.04 $0.06 $(0.05)$(1.35)
Discontinued operations$(0.04)$0.06 $0.08 $(0.86)
Net earnings (loss) per share - diluted$$0.12 $0.03 $(2.21)
Weighted average shares outstanding:
Basic135,240,897 135,083,126 135,106,969 135,406,081 
Diluted136,086,082 135,671,830 135,979,118 135,406,081 

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


2019
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
Sales$297,468 $311,641 $307,271 $283,535 
Gross profit67,728 81,863 82,913 65,898 
Operating income28,995 48,840 41,191 28,482 
Net income from continuing operations6,055 19,404 11,888 28,406 
Net income (loss) from discontinued operations, net of tax(2,614)11,315 6,863 (1,007)
Net income3,441 30,719 18,751 27,399 
Less: Net income attributable to the noncontrolling interest - continuing operations231 101 82 203 
Less: Net income attributable to the noncontrolling interest - discontinued operations59 44 24 27 
Net income attributable to PQ Group Holdings Inc.3,151 30,574 18,645 27,169 
Earnings (loss) per common share - basic:
Continuing operations$0.04 $0.14 $0.09 $0.21 
Discontinued operations$(0.02)$0.08 $0.05 $(0.01)
Net earnings per share - basic$0.02 $0.23 $0.14 $0.20 
Earnings (loss) per common share - diluted:
Continuing operations$0.04 $0.14 $0.09 $0.21 
Discontinued operations$(0.02)$0.08 $0.05 $(0.01)
Net earnings per share - diluted$0.02 $0.23 $0.14 $0.20 
Weighted average shares outstanding:
Basic133,946,308 134,142,552 134,511,819 134,912,212 
Diluted134,894,354 135,323,024 135,649,710 136,151,739 

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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


28.25. Supplemental Cash Flow Information:
The following table presents supplemental cash flow information for the Company:Company, which includes activity from both continuing and discontinued operations:
Years ended
December 31,
202020192018
Cash paid during the year for:
Income taxes, net of refunds$35,013 $17,406 $23,842 
Interest(1)
90,291 117,775 110,834 
Non-cash investing activity(2):
Capital expenditures acquired on account but unpaid as of the year end11,630 22,562 23,498 

Years ended
December 31,
202320222021
Cash paid during the year for:
Income taxes, net of refunds$22,437 $25,556 $11,843 
Interest(1)
42,081 35,370 59,040 
Non-cash investing activity:
Capital expenditures acquired on account but unpaid as of the year end3,427 4,653 6,116 
Non-cash financing activities(2):
Accrued excise tax on share repurchases (Note 7)638 — — 
(1)Cash paid for interest is shown net of capitalized interest and includes the cash received or paid on the Company’s interest rate cap agreements designated as cash flow hedges for the periods presented andpresented. Cash paid for interest also excludes $4,963 and $8,480$2,307 of net interest proceeds on swaps designated as net investment hedges for the yearsyear ended December 31, 2020 and 2019, respectively,2021, which arewas included within cash flows from investing activities, discontinued operations in the Company’s consolidated statements of cash flows.
(2)For the supplemental non-cash information on lease liabilities arising from obtaining right-of-use lease assets, see Note 1312 to these consolidated financial statements for additional details.
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets as of December 31, 2020, 2019 and 2018 to the total of the same amounts shown in the consolidated statements of cash flows for the years then ended:
December 31,
202020192018
Cash and cash equivalents$135,531 $53,861 $37,164 
Restricted cash included in prepaid and other current assets1,688 1,331 1,435 
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows$137,219 $55,192 $38,599 

further information.


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PQ GROUP HOLDINGS INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in thousands, except share and per share amounts)


29.26. Subsequent Events:
Definitive Agreement to Sell the Company’s Performance Chemicals Business
On March 1, 2021, the Company announced that it entered into a definitive agreement to sell its Performance Chemicals business for a purchase price of $1,100,000, subject to customary purchase price adjustments as set forth in the agreement. The planned sale of the Performance Chemicals business reflects continued advancement by the Company on its ‘Simpler + Stronger’ strategic path.
The Company expects to use the after-tax cash proceeds from the sale to reduce debt and return capital to its shareholders, subject to board approval and declaration. The transaction is expected to close by the end of 2021, subject to regulatory approvals and customary closing conditions. The Company is currently evaluating the impact of this transaction.
This transaction met the held for sale criteria in March 2021, and consequently the financial results of the Performance Chemicals business will be reported in discontinued operations beginning in the first quarter of 2021.
Chem32 Acquisition
On February 24, 2021, the Company completed the acquisition of Chem32, a leading supplier of catalyst pre-activation services, for a purchase price of $44,000, subject to customary purchase price adjustments as set forth in the agreement.
Other than these items, the Company has evaluated subsequent events since the balance sheet date and determined that there are no additional matters to disclose.
F-81F-69


SCHEDULE I
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES (PARENT)
CONDENSED FINANCIAL INFORMATION
CONDENSED STATEMENTS OF INCOME
(in thousands)



Years ended
December 31,
202020192018
Stock compensation expense$25,200 $16,212 $18,419 
Equity in net loss (income) from subsidiaries253,571 (95,751)(76,719)
Net (loss) income(278,771)79,539 58,300 
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits1,938 2,430 (7,958)
Net (loss) gain from hedging activities166 (2,665)(330)
Foreign currency translation(16,596)22,117 (35,127)
Total other comprehensive income (loss)(14,492)21,882 (43,415)
Comprehensive (loss) income$(293,263)$101,421 $14,885 
Years ended
December 31,
202320222021
Stock compensation expense$16,031 $20,632 $39,523 
Equity in net (income) loss from subsidiaries(87,185)(94,329)100,426 
Net income (loss)71,154 73,697 (139,949)
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits1,120 (2,676)9,530 
Net gain (loss) from hedging activities(12,126)24,382 2,914 
Foreign currency translation4,056 (9,922)(2,248)
Total other comprehensive income(6,950)11,784 10,196 
Comprehensive income (loss)$64,204 $85,481 $(129,753)

See accompanying notes to condensed financial statements.

F-82F-70

SCHEDULE I
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES (PARENT)
CONDENSED FINANCIAL INFORMATION
CONDENSED BALANCE SHEETS
(in thousands, except share and per share amounts)



December 31,
2023
December 31,
2023
December 31,
2022
ASSETS
December 31,
2020
December 31,
2019
ASSETS
Investment in subsidiaries
Investment in subsidiaries
Investment in subsidiariesInvestment in subsidiaries$1,277,126 $1,779,450 
Total assetsTotal assets$1,277,126 $1,779,450 
LIABILITIESLIABILITIES
Total liabilitiesTotal liabilities$$
Total liabilities
Total liabilities
STOCKHOLDERS' EQUITYSTOCKHOLDERS' EQUITY
Common stock (0.01 par); authorized shares 450,000,000; issued shares 137,102,143 and 136,861,382 on December 31, 2020 and 2019, respectively; outstanding shares 136,318,557 and 136,464,961 on December 31, 2020 and 2019, respectively1,371 1,369 
Preferred stock (0.01 par); authorized shares 50,000,000; 0 shares issued or outstanding on December 31, 2020 and 2019, respectively
Common stock (0.01 par); authorized shares 450,000,000; issued shares 140,744,045 and 139,571,272 on December 31, 2023 and 2022, respectively; outstanding shares 116,116,895 and 122,186,238 on December 31, 2023 and 2022, respectively
Common stock (0.01 par); authorized shares 450,000,000; issued shares 140,744,045 and 139,571,272 on December 31, 2023 and 2022, respectively; outstanding shares 116,116,895 and 122,186,238 on December 31, 2023 and 2022, respectively
Common stock (0.01 par); authorized shares 450,000,000; issued shares 140,744,045 and 139,571,272 on December 31, 2023 and 2022, respectively; outstanding shares 116,116,895 and 122,186,238 on December 31, 2023 and 2022, respectively
Preferred stock (0.01 par); authorized shares 50,000,000; no shares issued or outstanding on December 31, 2023 and 2022, respectively
Additional paid-in capitalAdditional paid-in capital1,477,859 1,696,899 
(Accumulated deficit) retained earnings(175,758)103,013 
Treasury stock, at cost; shares 783,586 and 396,421 on December 31, 2020 and 2019, respectively(11,081)(6,483)
Accumulated other comprehensive loss(15,265)(15,348)
Total PQ Group Holdings Inc. equity1,277,126 1,779,450 
Accumulated deficit
Treasury stock, at cost; shares 24,627,150 and 17,385,034 on December 31, 2023 and 2022, respectively
Accumulated other comprehensive (loss) income
Total equity
Total liabilities and equityTotal liabilities and equity$1,277,126 $1,779,450 

See accompanying notes to condensed financial statements.


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SCHEDULE I
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES (PARENT)
CONDENSED FINANCIAL INFORMATION
CONDENSED STATEMENTS OF CASH FLOWS
(in thousands)



Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
Cash flows from operating activities:Cash flows from operating activities:
Net (loss) income$(278,771)$79,539 $58,300 
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Net income (loss)
Net income (loss)
Net income (loss)
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in net income from subsidiaries
Equity in net income from subsidiaries
Equity in net income from subsidiariesEquity in net income from subsidiaries253,571 (95,751)(76,719)
Stock compensation expenseStock compensation expense25,200 16,212 18,419 
Net cash provided by operating activitiesNet cash provided by operating activities
Cash flows from investing activities:Cash flows from investing activities:
Distribution from subsidiariesDistribution from subsidiaries243,779 
Distribution from subsidiaries
Distribution from subsidiaries
Net cash provided by investing activitiesNet cash provided by investing activities243,779 
Cash flows from financing activities:Cash flows from financing activities:
Dividends paid to stockholdersDividends paid to stockholders(243,779)
Dividends paid to stockholders
Dividends paid to stockholders
Net cash used in financing activitiesNet cash used in financing activities(243,779)
Effect of exchange rate changes on cash, cash equivalents and restricted cash
Net change in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period
Cash, cash equivalents and restricted cash at end of period of continuing operations$$$
Effect of exchange rate changes on cash and cash equivalents
Net change in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period of continuing operations

See accompanying notes to condensed financial statements.


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SCHEDULE I
PQ GROUP HOLDINGSECOVYST INC. AND SUBSIDIARIES (PARENT)
CONDENSED FINANCIAL INFORMATION
NOTES TO CONDENSED SCHEDULE I

1. Description of PQ Group HoldingsEcovyst Inc. and Subsidiaries
PQ Group HoldingsEcovyst Inc. (“PQ Group Holdings”Ecovyst” or the “Parent Company”) is a holding company that conducts substantially all of its business operations through its wholly owned subsidiary, PQ Corporation.Ecovyst Catalyst Technologies LLC. As specified in certain of PQ Corporation’sEcovyst Catalyst Technologies LLC’s debt agreements, entered into concurrently with a series of transactions to reorganize and combine the businesses of PQ Holdings Inc. and Eco Services Operations LLC in May 2016 (the “Business Combination”), as subsequently amended and restated, there are restrictions on the ability of PQ CorporationEcovyst Catalyst Technologies LLC to make payments to its stockholder, PQ Group Holdings,Ecovyst, on behalf of its equity interests (refer to Note 1716 to the PQ Group HoldingsEcovyst consolidated financial statements for further information regarding PQ CorporationEcovyst debt).
2. Basis of Presentation
The accompanying condensed Parent Company financial statements are required in accordance with Rule 4-08(e)(3) of Regulation S-X. These condensed financial statements have been presented on a “parent-only” basis.basis and are not the general-purpose financial statements of Ecovyst. Under a parent-only presentation, the Parent Company’s investment in its consolidated subsidiary is presentedrecorded based upon its proportionate share of the subsidiary’s net assets, similar to presenting it under the equity method of accounting. Under the equity method, the investment in subsidiary is stated at cost plus contributions and equity in undistributed income (loss) of the subsidiary, less distributions received since the date of acquisition. For purposes of presenting net income, this presentation assumes that the Parent Company was in existence for the full year ended December 31, 2016, the year of the Business Combination. These parent-only financial statements should be read in conjunction with PQ Group Holdings’Ecovyst’s audited consolidated financial statements.statements and the accompanying notes thereto.
3. Stock-Based Compensation
Refer to Note 2221 of the notes to the PQ Group HoldingsEcovyst consolidated financial statements for a description of stock-based compensation.
4. Common Stock
Refer to Note 23 of the notes to the PQ Group Holdings consolidated financial statements for a description of common stock.
5. Dividends Paid
On December 14, 2020, the Company’sAugust 4, 2021, Ecovyst’s Board of Directors declared a special cash dividend of $1.80$3.20 per share, using the after tax cash proceeds and cash on hand from the sale of the Performance MaterialsChemicals business. The dividend was paid on August 23, 2021 to the Company’s stockholders of record at the close of business on December 21, 2020.

August 12, 2021.
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Report of Independent Auditors


To the Management Committee of Zeolyst International:International

Opinion
We have audited the accompanying financial statements of Zeolyst International (the “Partnership”), which comprise the balance sheets as of December 31, 20202023 and 2019,2022, and the related statements of operations and accumulated earnings, of changes in partners’ capital and of cash flows for the three years in the period ended December 31, 2020.2023, including the related notes (collectively referred to as the “financial statements”).

Management's ResponsibilityIn our opinion, the accompanying financial statements present fairly, in all material respects, the financial position of the Partnership as of December 31, 2023 and 2022, and the results of its operations and its cash flows for the years then ended in accordance with accounting principles generally accepted in the United States of America.
Basis for Opinion
We conducted our audit in accordance with auditing standards generally accepted in the United States of America (US GAAS). Our responsibilities under those standards are further described in the Auditors' Responsibilities for the Audit of the Financial Statements section of our report. We are required to be independent of the Partnership and to meet our other ethical responsibilities, in accordance with the relevant ethical requirements relating to our audit. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion.
Emphasis Of Matter
As discussed within Footnote 15 to the financial statements, the Partnership has significant related party transactions. Our opinion is not modified with respect to this matter.
Responsibilities of Management for the Financial Statements
Management is responsible for the preparation and fair presentation of the financial statements in accordance with accounting principles generally accepted in the United States of America; this includesAmerica, and for the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of financial statements that are free from material misstatement, whether due to fraud or error.

Auditors’ Responsibility
Our responsibility is to express an opinion onIn preparing the financial statements, based on our audits. We conducted our audits in accordance with auditing standards generally acceptedmanagement is required to evaluate whether there are conditions or events, considered in the United Statesaggregate, that raise substantial doubt about the Partnership’s ability to continue as a going concern for one year after the date the financial statements are available to be issued.
Auditors’ Responsibilities for the Audit of America. Those standards require that we plan and perform the auditFinancial Statements
Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free from material misstatement.
Anmisstatement, whether due to fraud or error, and to issue an auditors' report that includes our opinion. Reasonable assurance is a high level of assurance but is not absolute assurance and therefore is not a guarantee that an audit involves performing procedures to obtain audit evidence aboutconducted in accordance with US GAAS will always detect a material misstatement when it exists. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the amounts and disclosuresoverride of internal control. Misstatements are considered material if there is a substantial likelihood that, individually or in the aggregate, they would influence the judgment made by a reasonable user based on the financial statements. The procedures selected depend on our
In performing an audit in accordance with US GAAS, we:
Exercise professional judgment includingand maintain professional skepticism throughout the assessment ofaudit.
Identify and assess the risks of material misstatement of the financial statements, whether due to fraud or error. In makingerror, and design and perform audit procedures responsive to those risk assessments, we considerrisks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements.
Obtain an understanding of internal control relevant to the Partnership’s preparation and fair presentation of the financial statementsaudit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Partnership’sPartnership's internal control. Accordingly, we express no such opinion. An audit also includes evaluatingopinion is expressed.
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Evaluate the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluatingevaluate the overall presentation of the financial statements.
Conclude whether, in our judgment, there are conditions or events, considered in the aggregate, that raise substantial doubt about the Partnership's ability to continue as a going concern for a reasonable period of time.
We believe thatare required to communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit, evidencesignificant audit findings, and certain internal control-related matters that we have obtained is sufficient and appropriate to provide a basis for our audit opinion.identified during the audit.

Opinion
In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Zeolyst International as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020 in accordance with accounting principles generally accepted in the United States of America.

Emphasis of Matter
As discussed within Footnote 15 to the financial statements, the Partnership has significant related party transactions. Our opinion is not modified with respect to this matter.


/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
March 17, 2021February 29, 2024


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ZEOLYST INTERNATIONAL
BALANCE SHEETS
(in thousands)

December 31,
2020
December 31,
2019
ASSETS
Cash$47,837 $10,522 
Trade receivables, net:
Receivables from third parties24,316 29,525 
Receivables from affiliates9,132 50,373 
Inventories98,241 127,864 
Other current assets576 573 
Total current assets180,102 218,857 
Property, plant and equipment, net142,871 144,615 
Intangible assets7,050 8,100 
Right-of-use lease asset5,968 6,077 
Other long-term assets480 694 
Total assets$336,471 $378,343 
LIABILITIES
Revolver$— $15,000 
Trade accounts payable5,292 13,231 
Accounts payable to affiliates21,066 12,519 
Operating lease liability—current109 109 
Other current liabilities2,965 3,776 
Total current liabilities29,432 44,635 
Operating lease liability—noncurrent5,859 5,968 
Total liabilities35,291 50,603 
Commitments and contingencies (Note 14)
PARTNERS’ CAPITAL
Contributed capital54,930 54,930 
Accumulated earnings246,250 272,810 
Net partners’ capital301,180 327,740 
Total liabilities and partners' capital$336,471 $378,343 

See accompanying notes to financial statements.
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ZEOLYST INTERNATIONAL
STATEMENTS OF OPERATIONS AND ACCUMULATED EARNINGS
(in thousands)

Years ended
December 31,
Years ended
December 31,
2023202320222021
Years ended
December 31,
202020192018
SalesSales$129,708 $161,725 $209,083 
Related party sales127,538 178,950 104,291 
Total sales257,246 340,675 313,374 
Sales
Sales
Cost of goods soldCost of goods sold85,392 84,566 88,551 
Related party cost of goods sold83,018 112,441 99,653 
Total cost of goods sold168,410 197,007 188,204 
Cost of goods sold
Cost of goods sold
Gross profitGross profit88,836 143,668 125,170 
Selling, general and administrative expenses (SG&A)Selling, general and administrative expenses (SG&A)3,146 3,857 1,476 
Related party SG&A32,204 37,085 35,635 
Other operating (income) expense, net
Other operating (income) expense, net
Other operating (income) expense, net
Operating incomeOperating income53,486 102,726 88,059 
Interest expense, net224 76 100 
Other (income) expense, net(178)(1,712)2,251 
Interest expense (income), net
Other expense (income), net
Net incomeNet income53,440 104,362 85,708 
Accumulated earnings at beginning of yearAccumulated earnings at beginning of year272,810 248,448 242,740 
Dividends paidDividends paid(80,000)(80,000)(80,000)
Accumulated earnings at end of yearAccumulated earnings at end of year$246,250 $272,810 $248,448 

See accompanying notes to financial statements.

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ZEOLYST INTERNATIONAL
BALANCE SHEETS
(in thousands)
December 31,
2023
December 31,
2022
ASSETS
Cash$8,417 $5,408 
Trade receivables, net:
Receivables from third parties70,562 43,363 
Receivables from affiliates43,260 42,622 
Inventories114,822 137,363 
Other current assets1,783 4,733 
Total current assets238,844 233,489 
Property, plant and equipment, net105,211 115,782 
Intangible assets3,900 4,950 
Right-of-use lease asset5,708 5,831 
Other long-term assets7,083 3,504 
Total assets$360,746 $363,556 
LIABILITIES
Trade accounts payable$9,349 $8,224 
Accounts payable to affiliates12,178 14,206 
Operating lease liability—current109 109 
Accrued liabilities4,078 4,277 
Total current liabilities25,714 26,816 
Operating lease liability—noncurrent5,599 5,721 
Revolver— 10,000 
Total liabilities31,313 42,537 
Commitments and contingencies (Note 14)
PARTNERS’ CAPITAL
Contributed capital54,930 54,930 
Accumulated earnings274,503 266,089 
Net partners’ capital329,433 321,019 
Total liabilities and partners' capital$360,746 $363,556 

See accompanying notes to financial statements.
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ZEOLYST INTERNATIONAL
STATEMENTS OF CHANGES IN PARTNERS’ CAPITAL
(in thousands)

Contributed capitalAccumulated earningsNet partners' capital
PQ Corporation:
Contributed capitalContributed capitalAccumulated earningsNet partners' capital
Ecovyst, Inc.:
Balance, December 31, 2017$27,465 $121,370 $148,835 
Dividends paid(40,000)(40,000)
Net income42,854 42,854 
Balance, December 31, 2018$27,465 $124,224 $151,689 
Dividends paid(40,000)(40,000)
Net income52,181 52,181 
Balance, December 31, 2019$27,465 $136,405 $163,870 
Dividends paid(40,000)(40,000)
Net income26,720 26,720 
Balance, December 31, 2020$27,465 $123,125 $150,590 
CRI Zeolites Inc.:
Balance, December 31, 2017$27,465 $121,370 $148,835 
Dividends paid(40,000)(40,000)
Net income42,854 42,854 
Balance, December 31, 2018$27,465 $124,224 $151,689 
Dividends paid(40,000)(40,000)
Net income52,181 52,181 
Balance, December 31, 2019$27,465 $136,405 $163,870 
Dividends paid$(40,000)$(40,000)
Net income$26,720 $26,720 
Balance, December 31, 2020Balance, December 31, 2020$27,465 $123,125 $150,590 
Total partners' capital at December 31, 2017$54,930 $242,740 $297,670 
Total partners' capital at December 31, 2018$54,930 $248,448 $303,378 
Total partners' capital at December 31, 2019$54,930 $272,810 $327,740 
Total partners' capital at December 31, 2020$54,930 $246,250 $301,180 
Balance, December 31, 2020
Balance, December 31, 2020
Dividends paid
Net income
Balance, December 31, 2021
Dividends paid
Net income
Balance, December 31, 2022
Dividends paid
Net income
Balance, December 31, 2023
Shell Catalysts & Technologies:
Shell Catalysts & Technologies:
Shell Catalysts & Technologies:
Balance, December 31, 2020
Balance, December 31, 2020
Balance, December 31, 2020
Dividends paid
Net income
Balance, December 31, 2021
Dividends paid
Net income
Balance, December 31, 2022
Dividends paid
Net income
Balance, December 31, 2023
Total partners' capital at December 31, 2021
Total partners' capital at December 31, 2021
Total partners' capital at December 31, 2021
Total partners' capital at December 31, 2022
Total partners' capital at December 31, 2023

See accompanying notes to financial statements.

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ZEOLYST INTERNATIONAL
STATEMENTS OF CASH FLOWS
(in thousands)

Years ended
December 31,
202020192018
Years ended
December 31,
Years ended
December 31,
2023202320222021
Cash flows from operating activities:Cash flows from operating activities:
Net income
Net income
Net incomeNet income$53,440 $104,362 $85,708 
Adjustments to reconcile net income to net cash provided by operating activities:Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortizationDepreciation and amortization17,397 17,845 15,954 
Loss on sale or disposal of capital assets25 47 101 
Depreciation and amortization
Depreciation and amortization
Loss (gain) on sale or disposal of capital assets
Amortization of deferred financing fees
Gain on sale of investment(372)(3,062)— 
Net change in returns allowanceNet change in returns allowance(713)856 (205)
Net change in returns allowance
Net change in returns allowance
Net change in inventory reserve
Other
Working capital changes that provided (used) cash:Working capital changes that provided (used) cash:
Receivables, including affiliates
Receivables, including affiliates
Receivables, including affiliatesReceivables, including affiliates47,163 (24,598)15,663 
InventoriesInventories29,623 (34,975)5,549 
Other current assetsOther current assets(2)175 (459)
Accounts payable, including affiliatesAccounts payable, including affiliates5,298 844 3,186 
Other current liabilitiesOther current liabilities(811)(2,275)1,178 
Other long-term assets— — 
Net cash provided by operating activitiesNet cash provided by operating activities151,048 59,219 126,681 
Net cash provided by operating activities
Net cash provided by operating activities
Cash flows from investing activities:
Cash flows from investing activities:
Cash flows from investing activities:Cash flows from investing activities:
Purchases of property, plant and equipmentPurchases of property, plant and equipment(19,105)(26,388)(16,356)
Purchase of license— — (4,000)
Proceeds from sale of investment372 3,062 — 
Purchases of property, plant and equipment
Purchases of property, plant and equipment
Net cash used in investing activitiesNet cash used in investing activities(18,733)(23,326)(20,356)
Net cash used in investing activities
Net cash used in investing activities
Cash flows from financing activities:Cash flows from financing activities:
Proceeds from revolver— 25,000 7,000 
Cash flows from financing activities:
Cash flows from financing activities:
Draw down of revolver
Draw down of revolver
Draw down of revolver
Payments on revolverPayments on revolver(15,000)(10,000)(7,000)
Revolver re-financing payments
Payments of cash dividendsPayments of cash dividends(80,000)(80,000)(80,000)
Net cash used in financing activitiesNet cash used in financing activities(95,000)(65,000)(80,000)
Net change in cash
Net change in cash
Net change in cashNet change in cash37,315 (29,107)26,325 
Cash at beginning of periodCash at beginning of period10,522 39,629 13,304 
Cash at end of periodCash at end of period$47,837 $10,522 $39,629 
Non-cash investing activity:
Non-cash investing activity:
Non-cash investing activity:Non-cash investing activity:
Capital expenditures acquired on account but unpaidCapital expenditures acquired on account but unpaid$1,816 $6,506 $5,461 
Capital expenditures acquired on account but unpaid
Capital expenditures acquired on account but unpaid

See accompanying notes to financial statements.

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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)


1. Organization:
Zeolyst International is a General PartnershipKansas general partnership (“Partnership”) was formed in 1988 pursuantby and between Ecovyst Catalyst Technologies LLC (“Ecovyst”) and Shell Catalysts & Technologies (formerly referred to a Joint Venture Agreement (“the Agreement”) between PQ Corporation (“PQ”) andas CRI Zeolites Inc. (“CRI”)), a Royal Dutch Shell affiliate (collectively, the “Partners”) formed pursuant to a Partnership Agreement dated February 1, 1988, as amended (“the Agreement”). Pursuant to a Contribution, Assignment, and Assumption Agreement dated July 29, 2021 (the “Contribution Agreement”) by and between Ecovyst and PQ Corporation (“PQ”), PQ transferred and Ecovyst assumed PQ’s interest in the Partnership and the Agreement.
The percentage interests as of December 31, 20202023 and 20192022 are as follows:
PQEcovyst50%
CRIShell Catalysts & Technologies50%
The Partnership was formed pursuant to the Kansas Uniform Partnership Act. The Agreement specifies that the partners share equally in capital contributions. The Agreement states that the profits and losses of the Partnership will be allocated in accordance with the partners’ interests in the Partnership. The intent of the Partnership is to develop, manufacture, and sell zeolites and zeolite-containing catalysts.
The Partnership has significant transactions with its partners and related affiliates. Refer to the Related Party Transactions footnoteSee Note 15 for further disclosure.information on related party transactions.
2. Partnership Business:
The Partnership manufactures zeolites and zeolytic catalysts that are used by refiners to capture impurities in the processing of petroleum based feed streams while increasing value. The selectivity and other chemicals. The filtration abilityactivity of zeolites placed intoused for this purpose can improve yields and have a customer’s chemical process generally extends two to threegeneral life cycle of 3-4 years. As a result, a significant portion of the Partnership’s customer base tends to change on an annual basis. A significant percentage of the base materials purchased for the Partnership’s manufacturing process isare acquired from related parties. In addition, a significant portion of the Partnership’s sales isare transacted through Criterion Catalyst CompanyShell Catalysts & Technologies (“Criterion”Shell”) which is a subsidiary of CRI.. The Partnership compensates CriterionShell with a 2% sales commission or royalty fee on specific sales transactions.
3. Summary of Significant Accounting Policies:
These financial statements have been prepared in accordance with generally accepted accounting principles. These financial statements are accounted for on a historical cost basis and do not reflect the results of any purchase accounting adjustments recorded in the Partners’ respective consolidated financial statements.
Cash and Cash Equivalents. Cash and cash equivalents include investments with original terms to maturity of 90 days or less from the time of purchase.
Restricted Cash. Restricted cash, which is restricted as to withdrawal or usage, is classified separately from cash and cash equivalents on the Partnership’s balance sheets. The Partnership corrected its 2019had no restricted cash balances as of December 31, 2023 and 2018 Statement of Cash Flows for a reclassification error of $5,444 and $3,915, respectively. The correction of this error resulted in an increase in the net cash provided by operating activities within Accounts payable, including affiliates and an increase in the net cash used for investing activity within Purchases of property, plant and equipment. The corrected balances conform to the current period presentation.2022.
Trade Accounts Receivables and Allowance for Doubtful Accounts:Accounts. Trade accounts receivables are recorded at the invoiced amount and do not bear interest. The Partnership maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. Allowances for doubtful accounts are based on historical experience and known factors regarding specific customers. If the financial condition of the Partnership’s customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances would be required. Account balances are charged off against the allowance when it is probable the receivable will not be recovered.
Inventories:Inventories. Inventories are stated at the lower of cost or net realizable value, valued on the first-in, first-out (“FIFO”) method. The Partnership establishes reserves for slow-moving and obsolete inventory.
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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)


Property, Plant and Equipment:Equipment. Property, plant, and equipment are carried at cost and include expenditures for new facilities and major renewals and betterments. Interest is capitalized on capital projects as applicable. Maintenance, repairs and minor renewals are charged to expense as incurred. When assets are sold or otherwise disposed of, the related
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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)

cost and accumulated depreciation are removed from the accounts, and any resulting gain or loss is included in the results of operations.
Depreciation is generally provided on the straight-line method based on estimated useful lives of the assets, ranging up to 33 years for buildings and improvements and 10 years for machinery and equipment.
We perform an impairment review of property, plant and equipment and other long-lived assets when events and circumstances indicate that those assets may be impaired by comparing the carrying amount of the assets to their fair value. Fair value is determined using quoted market prices where available, or other techniques including discounted cash flows. The Partnership’s estimates of future cash flows involve assumptions concerning future operating performance, economic conditions, and technological changes that may affect the future useful lives of the assets.
Leases. The Partnership has an evergreen land lease agreement with a remaining lease term of 3128 years as of December 31, 2020.2023. Accounting Standards Codification Topic 842, Leases (“ASC 842”), does not provide definitive guidance as to determining the length of evergreen leasing arrangements. As such, the Partnership estimated the term of the lease agreement to be commensurate with the estimated useful life of the buildings located on the land that is being leased. Upon adoption of ASC 842 on January 1, 2019, the Partnership assigned a 33 year life to the land lease agreement.
When the CompanyPartnership enters into an arrangement, at inception, the Partnership determines if the arrangement contains a lease and whether that lease meets the classification criteria of a finance or operating lease. The Partnership’s lease arrangement only contains lease components. The Partnership’s lease agreement does not contain any material residual value guarantees or material restrictive covenants.
The Partnership recognizes a right-of-use lease asset and lease liability at the lease commencement date based on the present value of the remaining lease payments over the lease term. The Partnership was unable to readily determine the discount rate implicit in the lease agreement in accordance with the policy. As such, the Partnership utilized its incremental borrowing rate over the relevant lease term, which is the rate of interest that it would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. Short-term leases, which have an initial term of twelve months or less, are not recorded on the Partnership’s balance sheet.
Lease expense for the operating lease is recognized on a straight-line basis over the lease term. The amortization expense component of the right-of-use lease asset is included in cost of goods sold and in selling, general and administrative expenses on the consolidatedaccompanying statements of income.operations and accumulated earnings.
Intangibles and Other Long-term Assets:Assets. Other long-term assets primarily include intangible assets, at cost and spare parts. In May 2017, the Partnership made a $6,500 strategic investment for license of materials-based solutions for catalytic and separations processes. In April 2018, the Partnership made a $4,000 strategic investment to buy down royalty obligations related to certain license agreements. On May 10, 2017, the Partnership made a $6,500 strategic investment for license of materials-based solutions for catalytic and separations processes. The Partnership amortizes these intangible assets over a ten-year period and includes the expense in selling, general and administrative expenses on itsthe accompanying statements of operations.operations and accumulated earnings. These investments are accounted for under the cost method of accounting.
In December 2017, The Partnership incurred intangible asset related amortization expense of $1,050 for the Partnership wrote down a $3,000 investment in a technology developer and licensor of materials-based solutions for catalytic and separations processes. During the yearyears ended December 31, 2019, the Partnership sold its investment 2023, 2022 and 2021, respectively, related to these investments.
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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in the common stockthousands)

Estimated future aggregate amortization expense of the technology developer and received $372 and $3,062 in proceeds, which was recorded in other (income) expense, net on the Partnership’s statements of operations and accumulated earnings in 2020 and 2019, respectively.intangible assets is as follows:
Year 
Amount 
2024$1,050 
20251,050 
20261,050 
2027617 
2028133 
Thereafter— 
Total estimated future aggregate amortization expense$3,900 
  
Revenue Recognition:Recognition. In determining the appropriate amount of revenue to be recognized as the Partnership fulfills its obligations under its agreements, the Partnership performs the following steps: (i) identification of the contract with the customer; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price; (iv) allocation of the transaction price to the performance obligations based on estimated selling prices; and (v) recognition of revenue when (or as) the Partnership satisfies each performance obligation.
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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)

The Partnership identifies a contract when an agreement with a customer creates legally enforceable rights and obligations, which occurs when a contract has been approved by both parties, the parties are committed to perform their respective obligations, each party’s rights and payment terms are clearly identified, commercial substance exists and it is probable that the Partnership will collect the consideration to which it is entitled.
The Partnership may recognize revenue from bill-and-hold arrangements initiated by a customer. Under these bill-and-hold arrangements, a customer pays for the goods, but does not take physical possession immediately. The Partnership considers satisfaction of performance obligations when they have finished manufacturing the products based on the agreed upon specifications in accordance with the order. These products are custom made to each customer’s specifications and cannot be made available for use with another customer’s order. Once the goods have been segregated in a designated space in the warehouse and the customer has been invoiced, title to the goods and risk of loss has transferred to the customer. The customers have access to their products to inspect and can take possession of even prior to the scheduled delivery dates.
The Partnership may offer rebates to customers who have reached a specified volume of optional purchases. The Partnership recognizes rebates given to customers as a reduction of revenue based on an allocation of the cost of honoring rebates earned and claimed to each of the underlying revenue transactions that result in progress by the customer toward earning the rebate. Rebates are recognized at the time revenue is recorded. The Partnership measures the rebate obligation based on the estimated amount of sales that will result in a rebate at the adjusted sales price per the respective sales agreement.
The Partnership recognizes revenue when all essential elements of the sales order have shipped and both title and risk of loss has passed to the customer. Hydrocracking and specialty catalyst orders are typically filled by a number of individual shipments, and those shipments may span the end of a fiscal quarter or year. If a portion of the order has not shipped and it is essential to the functionality of the customer’s end use, revenue is recognized when the order is completed. A shipment is considered essential if each individual shipment has no value to the customer on a stand-alone basis and if the remaining shipment is not considered inconsequential and perfunctory.
The Partnership currently reserves 3%2% of the Hydrocracking Catalystcatalyst sales due to a clause in the contract that allows customers to return up to 5% of the unused products they purchase within 90 days, and based on historical experience. The total sales returns reserve as ofwas $1,052 for the years ended December 31, 20202023 and 2019 amounted to $677 and $1,389,2022, respectively.
Shipping and Handling Costs:Costs. The Partnership classifies costs related to shipping and handling of products shipped to customers as cost of goods sold.
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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)

Research and Development: Research and development costs of $13,554, $17,468$15,388, $15,102 and $17,566$13,068 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively, were expensed as incurred and reported in selling, general and administrative expenses in the accompanying statements of operations.operations and accumulated earnings. Costs include salaries, contractor fees, building costs, utilities and administrative expenses.
Foreign Exchange Transactions:Transactions. The functional currency of the Partnership is the U.S. Dollar. The Partnership enters into transactions that are denominated in other currencies. Gains and losses on foreign currency transactions are included in other (income) / expense, net on the accompanying statements of operations.operations and accumulated earnings. Foreign exchange gain of $41,(gain) loss of $967$(67), $1,049 and gain of $1,726$1,551 were recognized for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
Fair Value Measurements:Measurements. The Partnership’s financial assets and liabilities are reflected in the financial statements at amortized cost which approximates fair market value. Fair value is defined as the price at which an asset could be exchanged in a current transaction between willing market participants. A liability’s fair value is defined as the amount that would be paid to transfer the liability to a market participant, not the amount that would be paid to settle the liability with a creditor. The Partnership’s cash balances approximate fair value due to their short-term maturity.
Use of Estimates:Estimates. The preparation of the Partnership’s financial statements in conformity with generally accepted accounting principles requires management to make estimates that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Revision of Previously Issued Financial Statements.
4. Recently Issued Accounting Standards:
In February 2016,During the FASB issued guidance (with subsequent targeted amendments) that modifies the accounting for leases. Under the new guidance, a lessee will recognize assets and liabilities for most leases (including those classified under existing GAAP as operating leases, which based on current standards are not reflected on the balance sheet), but will recognize expenses similar to current lease accounting. The new guidance also requires companies to provide expanded disclosures regarding leasing arrangements. The guidance is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. The new guidance must be adopted using a modified retrospective transition method. The Partnership can choose to apply the new guidance at the beginningpreparation of the earliest period presented in the financial statements for the year ended December 31, 2023, the Partnership identified an error in prior period cost of goods sold. Although the Partnership has determined that this error did not have a material impact on its previously issued financial statements, it has revised the accompanying financial statements to correct for this error and to reflect the associated decrease in cost of goods sold of $4.9 million and $3.0 million for the years ended December 31, 2022 and December 31, 2021, respectively. In connection with this revision, the Partnership also corrected other immaterial errors in the prior periods, including certain errors that had previously been adjusted for as out of period corrections in the period identified.
The revisions had no net impact on cash flows from operating, investing or atfinancing activities in the dateaccompanying statements of adoption, with a cumulative-effect adjustmentcash flows. The applicable notes to the opening balanceaccompanying financial statements have also been revised to correct for these errors.
The following table summarizes the effect of retained earnings and no recast of prior period results presentedthe revisions on the affected line items within the Partnership’s financialaccompanying statements of operations and accumulated earnings:
Year ended
December 31, 2022
Year ended
December 31, 2021
As reportedAdjustmentAs revisedAs reportedAdjustmentAs revised
Cost of goods sold159,367 $(4,869)$154,498 161,593 $(108)$161,485 
Gross profit105,693 4,869 110,562 101,071 108 101,179 
Operating income67,262 4,869 72,131 67,086 108 67,194 
Net income66,482 4,869 71,351 65,954 108 66,062 
Accumulated earnings at beginning of year262,204 2,534 264,738 246,250 2,426 248,676 
Accumulated earnings at end of year258,686 7,403 266,089 262,204 2,534 264,738 

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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)

statements. The Partnership adoptedfollowing table summarizes the new guidance aseffect of January 1, 2019 (date of adoption) and has included all relevant disclosuresthe revisions on the affected line items within Note 3 and Note 9 to these financial statements.the balance sheets:
December 31, 2022
As reportedAdjustmentAs revised
ASSETS
Inventories$138,135 $(772)$137,363 
Total current assets234,261 (772)233,489 
Total assets364,328 (772)363,556 
LIABILITIES
Trade accounts payable16,399 (8,175)8,224 
Total current liabilities34,991 (8,175)26,816 
Total liabilities50,712 (8,175)42,537 
PARTNERS’ CAPITAL
Accumulated earnings258,686 7,403 266,089 
Net partners’ capital313,616 7,403 321,019 
Total liabilities and partners' capital364,328 (772)363,556 
4. Recently Issued Accounting Standards:
In June 2016,October 2023, the Financial Accounting Standards Board (“FASB”(the “FASB”) issued guidance to amend either presentation or disclosure requirements related to fourteen subtopics in the FASB Accounting Standards Codification, that affects loans, trade receivables and any other financial assetsare currently in the SEC Regulation S-X or Regulation S-K. The new guidance was issued in response to the SEC’s ruling on disclosure simplification. For entities subject to existing SEC disclosure requirements, the effective date of each amendment of the topics will be the date that have the contractual rightSEC removes the related disclosure from Regulation S-X or Regulation S-K. The guidance must be applied prospectively, with no early adoption permitted for entities subject to receive cash. Underthose existing SEC disclosures. The Partnership is currently evaluating the impact of the new guidance an entity is requiredas it pertains to recognize expected credit losses rather than incurred losses for financial assets.the fourteen subtopics that would impact the business and will apply prospectively once in effect.
In March 2020 and January 2021, the FASB issued guidance to address certain accounting consequences from the anticipated transition from the use of the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. The new guidance contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance is effectiveoptional and may be elected over time as reference rate reform activities occur. The time period through which the practical expedients provided in the guidance is available was set to expire on December 31, 2022, but was extended through December 31, 2024 by the FASB in December 2022. During the year ended December 31, 2020, the Partnership elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. Thefuture LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based on matches the index of the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. In March 2023, the Partnership adoptedamended the new guidance effective January 1, 2020,revolving line to replace LIBOR with no material impacta secured overnight financing rate (“SOFR”) as the benchmark interest rate. See Note 11 to the Partnership’s consolidatedthese accompanying financial position, results of operations or cash flows.
statements for further information.

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ZEOLYST INTERNATIONAL
NOTES TO FINANCIAL STATEMENTS
(in thousands)

5. Revenue from Contracts with Customers:
The Partnership applies the five-step revenue recognition model to each contract with its customers. Evidence of a contract between the Partnership and its customers may take the form of a master service agreement (“MSA”), a MSA in combination with an underlying purchase order, a combination of a pricing quote with an underlying purchase order or an individual purchase order received from a customer. The Partnership and certain of its customers enter into MSAs that establish the terms, including prices, under which orders to purchase goods may be placed. In cases where the MSA contains a distinct order for goods or contains an enforceable minimum quantity to be purchased by the customer, the Partnership considers the MSA to be evidence of a contract between the Partnership and its customer as the MSA creates enforceable rights and obligations. In cases where the MSA does not contain a distinct order for goods, the Partnership’s contract with a customer is the purchase order issued under the MSA. Customers of the Partnership may also negotiate orders via pricing quotes, which typically detail product pricing, delivery terms and payment information. When a customer procures goods under this method, the Partnership considers the combination of the pricing quote and the purchase order to create enforceable rights and obligations. Absent either a MSA or pricing quote, the Partnership considers an individual purchase order to create enforceable rights and obligations.
The Partnership identifies a performance obligation in a contract for each promised good that is separately identifiable from other promises in the contract and for which the customer can benefit from the good. The Partnership’s contracts have a single performance obligation, which is the promise to transfer individual goods to the customer. Single performance obligations are satisfied according to the shipping terms noted within the MSA or purchase order.
As described above, the Partnership’s MSAs with its customers may outline prices for individual products or contract provisions. Revenue from product sales are recorded at the sales price, which includes estimates of variable consideration for which reserves are established and which result from discounts, returns or other allowances that are offered within contracts between the Partnership and its customers.
The Partnership recognizes revenues when performance obligations under the terms of a contract with its customer are satisfied, which generally occurs at a point in time by transferring control of a product to the customer. The Partnership determines the point in time when a customer obtains control of a product and the Partnership satisfies the performance obligation by considering factors including when the Partnership has a right to payment for the product, the customer has legal title to the product, the Partnership has transferred possession of the product, the customer has assumed the risks and rewards of ownership of the product and the customer has accepted the product. Revenue is measured as the amount of consideration the Partnership expects to receive in exchange for transferring goods. The Partnership does not have any significant payment terms as payment is received at, or shortly after, the point of sale.
Contract Assets and Liabilities
A contract asset is a right to consideration in exchange for goods that the Partnership has transferred to a customer when that right is conditional on something other than the passage of time. A contract liability exists when the Partnership receives consideration in advance of performance obligations. The Partnership has not recorded any contract assets or contract liabilities on its balance sheet as of December 31, 2020.
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NOTES TO FINANCIAL STATEMENTS
(in thousands)

2023 and 2022.
Practical Expedients and Accounting Policy Elections
The Partnership has elected to use certain practical expedients and has made certain accounting policy elections as permitted under the new revenue recognition guidance. Certain of the Partnership’s contracts with customers are based on an individual purchase order; thus, the duration of these contracts are for one year or less. The Partnership has made an accounting policy election to omit certain disclosures related to remaining performance obligations for contracts which have an initial term of one year or less.
The Partnership uses an output method to recognize revenues related to performance obligations. These performance obligations, as described above, are satisfied within a calendar year. As such, the Partnership has elected to utilize the “as-invoiced���“as-invoiced” practical expedient, which permits the Partnership to recognize revenue in the amount to which it has a right to invoice the customer, provided that the amount corresponds directly with the value provided by the performance obligation as completed to date.
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NOTES TO FINANCIAL STATEMENTS
(in thousands)

When the Partnership performs shipping and handling activities after the transfer of control to the customer (e.g. when control transfers prior to delivery), they are considered fulfillment activities as opposed to separate performance obligations, and the Partnership recognizes revenue upon the transfer of control to the customer. Accordingly, the costs associated with these shipping and handling activities are accrued when the related revenue is recognized under the Partnership’s policy election. The Partnership expenses incremental costs of obtaining a contract as incurred if the expected amortization period of the asset that the Partnership would have recognized is one year or less. Sales, value added and other taxes the Partnership collects concurrent with revenue producing activities are excluded from revenues.
Disaggregated Revenue
The following table disaggregates the Partnership’s sales by end use for the yearyears ended December 31, 20202023, 2022, and 2019:2021:
Years ended
December 31,
20202019
Fuels and Emission Controls$185,722 $245,926 
Packaging & Engineered Plastics71,524 94,749 
Total$257,246 $340,675 
Years ended
December 31,
202320222021
Clean fuels, emission control & other$254,066 $206,907 $227,586 
Polyethylene, polymers & engineered plastics58,897 58,153 35,078 
Total$312,963 $265,060 $262,664 

6. Accounts Receivable and Allowance for Doubtful Accounts:
The components of accounts receivable are as follows:
December 31,
20202019
December 31,December 31,
202320232022
Trade accounts receivableTrade accounts receivable$34,124 $81,287 
AllowanceAllowance(676)(1,389)
$
$33,448 $79,898 

7. Inventories:
Inventories were classified is as follows:
December 31,
20232022
Finished products and work in process$106,483 $127,203 
Raw materials and containers8,339 10,160 
$114,822 $137,363 

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NOTES TO FINANCIAL STATEMENTS
(in thousands)

7. Inventories:
Inventories were classified and valued as follows:
December 31,
20202019
Finished products and work in process$92,128 $119,271 
Raw materials and containers6,113 8,593 
$98,241 $127,864 

8. Property, Plant and Equipment:
A summary of property, plant and equipment, at cost, and related accumulated depreciation is as follows:
December 31,
20202019
Land and buildings$49,831 $49,382 
December 31,December 31,
202320232022
Buildings and improvements
Machinery and equipmentMachinery and equipment176,401 177,804 
Construction in progressConstruction in progress51,655 40,579 
290,234
Less: accumulated depreciation
$
277,887 267,765 
Less: accumulated depreciation(135,016)(123,150)
$142,871 $144,615 
Depreciation expense was $16,134, $16,582$15,217, $19,254 and $16,260$17,197 for the years ended December 31, 2020, 2019,2023, 2022, and 2018,2021, respectively. Disposal of assets reduced PP&E and accumulated depreciation by $4,268, $8,356,$521, $1,014, and $5,166,$192, respectively with $79 loss for the year ended December 31, 2023, and a $25, $47,$37 loss and $101 reductiona $5 gain to earnings for the years ended December 31, 2020, 2019,2022 and 2018,2021, respectively.
9. Leases:
Operating lease costs of $310 are included in cost of goods sold on the consolidatedaccompanying statements of incomeoperations and accumulated earnings for the yearyears ended December 31, 2020. The weighted average lease term is 31 years with a weighted average discount rate of 3.25%.2023, 2022 and 2021, respectively. Cash payments on operating leases included in operating cash flows was $310 for the yearyears ended December 31, 2020.2023, 2022, and 2021, respectively. The remaining lease term is 28 years with a weighted average discount rate of 3.25%. The current portion of the lease liability is included on the Partnership’s balance sheetsheets in other current liabilities. FinanceThere was no finance lease costs for the year ended December 31, 2020 is $0.2023.
Maturities of lease liabilities as of December 31, 20202023 are as follows:
Year 
Operating
Lease
2024$310 
2025310 
2026310 
2027310 
2028310 
Thereafter7,130 
Total lease payments8,680 
Less: Interest(2,972)
Total lease liabilities$5,708 

Operating
Lease
2021$310 
2022310 
2023310 
2024310 
2025310 
Thereafter8,060 
Total lease payments9,610 
Less: Interest(3,642)
Total lease liabilities$5,968 
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(in thousands)


10. Other CurrentAccrued Liabilities:
A summary of other currentaccrued liabilities is as follows:
December 31,
20202019
Accrued royalties and license fees$224 $1,968 
Accrued commissions713 1,228 
Accrued other2,137 689 
$3,074 $3,885 
December 31,
20232022
Royalties and license fees$2,111 $1,597 
Commissions1,212 1,519 
Rebates124 823 
Property tax211 204 
Other420 134 
$4,078 $4,277 

11. Revolver:
On March 2, 2016, the Partnership entered into a five-year revolving line of credit facility of $60,000, which carries an initial interest rate of LIBOR. The agreement expires on March 1, 2021.LIBOR or the base rate plus an interest margin of 0.75% per annum. On May 26.26, 2020, this agreement was amended and extendedto extend the term to May 25, 2022. On November 30, 2021, this agreement was amended again to extend the term to November 29, 2026. The interest rate on the facility iswas LIBOR or the base rate plus an interest margin ranging from 0.75% toof 1.00% per annum based onannum. On March 13, 2023, the Partnership’s debtPartnership amended the revolving line to EBITDA ratio.replace LIBOR with SOFR as the benchmark interest rate. Following this amendment, the revolving line of credit facility will bear interest at an adjusted term SOFR rate or the base rate plus an interest margin of 1.00% per annum.
As of December 31, 2023, availability under this agreement was $60,000. A commitment fee is paid to the bank for this agreement. As of December 31, 2020, availability under this agreement was $60,000.
The revolving credit agreement contains certain restrictions and covenants that require the Partnership to maintain a minimum partners’ equity, as defined, of $200,000 plus 10% of net income, and a minimum EBITDA of $40,000 on a last twelve month basis measured quarterly. The Partnership was in compliance with all covenants during 2020.2023.
Cash payments for interest were approximately $225, $134$157, $306 and $101$150 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively.
The fair value of a financial instrument is the amount at which the instrument could be exchanged in a current transaction. The carrying amount of the revolving line of credit approximates fair value because it is a short-short term liquidity tool to fund operations, which is drawn down and paid back with cash generated from operations.
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NOTES TO FINANCIAL STATEMENTS
(in thousands)

12. Partners’ Contributions:
In accordance with the Agreement, in the event that cash flow from operations is insufficient to meet the Partnership’s requirements, following a majority vote by the Management Committee of the Partnership to request capital from the partners, the partners will provide additional capital to enable the Partnership to meet its obligations. No such contributions were made during the years ended December 31, 2020, 2019,2023, 2022, or 20182021 as the Partnership had the ability to finance operations through cash flow from operations and borrowings under the Partnership’s revolving line of credit facility.
13. Income Taxes:
As a partnership, Zeolyst International is not liable for the payment of taxes on income in the U.S. Net income and losses are allocated to the respective partners on an annual basis, and it is the partners’ responsibility to pay income taxes, if any, thereon according to their respective tax positions.

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NOTES TO FINANCIAL STATEMENTS
(in thousands)

14. Commitments and Contingent Liabilities:
In 1998, the Partnership entered into a ten year tolling agreement (“the Tolling Agreement”) with CRI Belgium,Shell, a related party, for the manufacture of specialty extruded products. Effective January 2004, the 1998 Tolling Agreement was replaced by a new evergreen ten-year tolling agreement with CRI Belgium.agreement. Both parties can terminate this agreement without cause with twenty-four months’ notice. By letter dated January 19, 2024, Shell provided a notice of termination of the Tolling Agreement effective twenty-four months from the date of such letter. The parties are currently negotiating a possible new agreement to replace the Tolling Agreement. The Partnership pays CRI BelgiumShell a daily charge rate based on the actual days of production. This charge is included in related party cost of goods sold and totaled $15,700, $27,811$28,698, $20,134 and $23,381$19,617 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. In addition, for certain capital expenditures, that are beneficial to the Partnership, the parties will mutually agree on future adjustments to the daily charge rates or propose an alternative method of the Partnership’s contribution to those costs.
During 2007, the Partnership entered into a License Agreement with a third party to obtain exclusive licensing rights to use the technology in the manufacturing, using and selling of Powder catalyst and Shaped catalyst. The consideration for the licensing rights includes (1) a down payment of $3,200 payable in six annual installments to acquire the product license, and (2) royalty payments at a rate of 10% of the Powder and Shaped Net Sale price during the royalty period. TheAs of December 31, 2021, the partnership has paid in full the $3,200 is payable as follows: $500 was paid at the date of the agreement, $500 at first, second, and third anniversaries of the agreement, and $600 at the fourth and fifth anniversary of the agreement.down payment. The product license intangible is being amortized over the life of the agreement on a straight-line basis, which is estimated to be 15 years. Amortization expense of $213 was recognized in 2020, 2019 and 2018. The royalty period of 10 years began in 2013, immediately after the date on which the Partnership had cumulatively produced the first 250 metric tons of Powder and Shaped catalyst. If at the end of the Royalty Period, the cumulative of running royalties actually paid by the Partnership is less than $3,000, the Partnership will be obligated to pay the difference between the $3,000 and the actual cumulative running royalty amount. AsThe agreement ended in 2022 and the Partnership paid $216 in March 2022. Amortization expense of $89 and $213 was recognized for the years ended December 31, 20202022 and 2019 there2021, respectively. There were $200 and $240, respectively,no liabilities recorded related to this agreement.
During 2013 the Partnership entered into a Sublicense Agreement with a third party to obtain patent and know-how licensing rights to make, use, import, and sell the Licensed Process and Products in the Licensed field. The considerationagreement for the licensing rights includes a payment of $1,500 payableyear ended in three installments. The $1,500 is payable as follows: $500 will be paid at the date of the first successful sale of commercialized product, or 36 months from execution of the license agreement, $500 after sale of 0.5 million pounds of product, or 48 months from execution of the license agreement, and $500 after sale of 1.0 million pounds of product, or 60 months from execution of the license agreement. In October 2016, the agreement was amended to extend payment terms. The payment of $1,500 is payable as follows: $500 will be paid at the date of the first successful sale of commercialized product, or 69 months from execution of the license agreement, $500 after sale of 0.5 million pounds of product, or 81 months from execution of the license agreement, and $500 after sale of 1.0 million pounds of product, or 93 months from execution of the license agreement. The product license intangible will be amortized prospectively with this change in estimated life. Amortization expense of $0, $0 and $12 was recognized in the years ending December 31, 2020, 2019 and 2018, respectively. This agreement was terminated in 2018 with no payments due to third party. Amortization credit of $0 was recognized in the year ending December 31, 2018.2022.
15. Related Party Transactions:
Policies and Procedures
The Partnership maintains certain policies and procedures for the review, approval, and ratification of related party transactions. All significant relationships and transactions are separately identified by management if they meet the definition of a related party or a related party transaction. Related party transactions include transactions that occurred during the year, in which the Partnership was or will be a participant and which any related person had or will have a direct or indirect material interest. Due to the nature of the Partnership, material related party transactions are identified on a transaction-based approach. The types of transactions identified and reviewed include, but are not limited to, sales of products, purchases of inventory, tolling costs, sales and marketing costs, research and development, and management-related fees. All related party transactions are reviewed, approved and documented by the appropriate level of the Partnership’s management in accordance with these policies and procedures.

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NOTES TO FINANCIAL STATEMENTS
(in thousands)

PQEcovyst
UnderPursuant to the terms ofContribution Agreement, PQ transferred and Ecovyst assumed PQ’s interest in a Lease Agreement by and between PQ and the Agreement,Partnership dated February 1, 1988 (the “Lease”) pursuant to which the Partnership leases certain land used in its Kansas City production facilities, from PQ. This lease,and PQ transferred to Ecovyst the land underlying the Partnership’s Kansas City production facility. The Lease, which has been recorded as an operating lease, provided for rental payments of $310 $305, and $295 for the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. The rent expense is included in the related party cost of goods sold line item in the accompanying statements of operations.operations and accumulated earnings. The termsterm of this lease are evergreenthe Lease continues as long as the Partnership agreementAgreement is in place.effect. The Partnership purchases certain of its raw materials from PQEcovyst and is charged for various manufacturing costs incurred at the PQEcovyst Kansas City production facility. The amount of these costs charged to the Partnership by Ecovyst during the years ended December 31, 2020, 20192023, 2022 and 20182021 were $16,065, $19,976$20,594, $23,699 and $16,869,$21,778, respectively. These costs are a component of production costs and are included in the related party cost of goods sold line item in the accompanying statements of operations and accumulated earnings when the inventory is sold. Certain administrative, marketing, engineering, management-related, and research and development services are provided to the Partnership by PQ.Ecovyst. During the years ended December 31, 2020, 20192023, 2022 and 2018,2021, the Partnership was charged $12,229, $12,871by Ecovyst $14,758, $13,908 and $12,727,$11,406, respectively, for these services. These amounts are included in the related party selling, general and administrative line item in the accompanying statements of operations.operations and accumulated earnings. In addition, certain product demonstration costs of $1,853, $2,204$1,819, $1,621 and $1,768$924 during the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively, were recorded in the related party cost of goods sold line of the accompanying statements of operations.operations and accumulated earnings.
The Partnership recognized $236 sales to PQ of $861, $803, and $645Ecovyst for the year ended December 31, 2023, while no sales were made to a wholly owned subsidiary of PQ inEcovyst during the years ended December 31, 2020, 2019,2022 and 2018,2021, respectively. As of December 14, 2020 PQ divested its ownership of this subsidiary. The Partnership reported activity prior to the date of sale as related party. Subsequent to the date of sale, the Partnership includes this activity as third party.
At December 31, 20202023 and 2019,2022, the accounts payable to affiliates consisted of $2,166$3,164 and $3,020$2,636 due to PQ. Included in trade accounts receivable atEcovyst. As of December 31, 20202023 and 2019 was $0 and $320, respectively2022, there were no trade receivables due from PQ.Ecovyst.
On December 18, 2013, PQ and ZI, entered into a real estate tax abatement agreement with the Unified Government of Wyandotte County and Kansas City, Kansas, assigned by PQ to Ecovyst in 2021, that will utilize an Industrial Revenue Bond financing structure to achieve a 75% real estate tax abatement on the value of the improvements that will be constructed during the expansion of PQ’sEcovyst’s and ZI’s facilities at the jointly-operated Kansas City, Kansas plant.
During the year ended December 31, 2020, the original IRB financing structure from December 2013 was exhausted. In order to fund future plant expansions, the CompanyPartnership entered into an additional IRB financing structure with similar terms and conditions, which also provides for 75% real estate tax abatements on the value of future improvements. The financing obligations and the industrial bonds receivable have been presented net, as the financing obligations and the industrial bonds meet the criteria for right of setoff conditions under GAAP.
CRI and Royal Dutch Shell AffiliatesCatalysts & Technologies
Royal Dutch Shell affiliatesCatalysts & Technologies include CRI, Criterion, Shell Development Company, Shell Research and Technology Center-Amsterdam, CRI Center Marketing Asia Pacific, Shell International Oil Products, CRI Belgium, and CRI Technology Services.Services and Royal Dutch Shell affiliates. As described in Note 2, a significant portion of the Partnership’s sales are transacted through Criterion.Shell. During the years ended December 31, 2020, 20192023, 2022 and 20182021, the Partnership recognized sales transacted through CriterionShell of $126,677, $178,148$133,618, $108,584 and $103,646,$78,892, respectively. The Partnership purchases certain of its raw materials and is charged for tolling, customer distribution and packaging costs incurred by Criterion.Shell. The amount of these costs charged to the Partnership during the years ended December 31, 2020, 20192023, 2022 and 20182021 were $21,686, $38,988$32,282, $23,799 and $31,383,$24,590, respectively. These costs are a component of production costs and are included in the related party cost of goods sold line item in the accompanying statements of operations and accumulated earnings when the inventory is sold. Certain engineering, management-related, broker-related, and research and development services are provided to the Partnership by CRI and Royal Dutch Shell affiliates.Shell. During the years ended December 31, 2020, 20192023, 2022 and 2018,2021, the Partnership was charged $19,975, $24,214$20,699, $19,554 and $22,908,$16,927, respectively, for these services. These amounts are included in the related party selling, general and administrative line item in the accompanying statements of operations.operations and accumulated earnings.
AtAs of December 31, 20202023 and 2019,2022, the accounts payable to affiliates balance consisted of $6,727$9,014 and $8,026,$11,570, respectively, due to CRI and Shell affiliates.Shell. Included in trade accounts receivable atas of December 31, 20202023 and 20192022 was $9,132$36,149 and $50,053,$36,030, respectively, of receivables related to sales transacted through Criterion,Shell, as described above.
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(in thousands)

Zeolyst C.V.
Zeolyst C.V. is a limited partnership formed in 1993 pursuant to a joint venture agreement between PQ Zeolites B.V. and CRIShell for the purpose of the production of Zeolite powders. The Partnership entered into an agreement with Zeolyst C.V. to purchase Zeolite powders manufactured by Zeolyst C.V. Under the terms of the agreement, products manufactured by Zeolyst C.V. are supplied solely to the Partnership. The Partnership has performed a qualitative and quantitative analysis and concluded that for Zeolyst C.V. for which it holds a variable interest but will not absorb a majority of the expected losses or residual returns, the Partnership is not the primary beneficiary and therefore, this VIE was not consolidated in the Partnership’s consolidated financial statements. The Partnership has no unfunded commitments or guarantees as a result of its involvement with Zeolyst C.V.
The total carrying value of assets and liabilities for Zeolyst C.V was $135,717$114,797 and $6,688$11,284 as of December 31, 20202023 and was $122,726$110,776 and $7,068$12,695 as of December 31, 2019,2022, respectively. The Partnership currently does not have any exposure to any losses by Zeolyst C.V. The Partnership has purchased $43,104, $50,968$48,906, $39,027 and $49,338$54,366 through the sales agreement during the years ended December 31, 2020, 20192023, 2022 and 2018,2021, respectively. These costs are a component of production costs and are included in the related party cost of goods sold line item in the accompanying statements of operations and accumulated earnings when the inventory is sold.
AtAs of December 31, 20202023 and 2019,2022, the accounts payable toreceivable from affiliates balance consisted of $12,173$7,111 and $1,473,$6,592, respectively, due from Zeolyst C.V. As of December 31, 2023 and 2022, there were no accounts payable due to Zeolyst C.V.
16. Subsequent Events:
The Partnership has evaluated subsequent events from the balance sheet date through March 17, 2021February 29, 2024 and determined there are no further items to disclose.
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