Table of Contents

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
___________________

FORM 10-K
 (MARK(MARK ONE)
ý
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For The Fiscal Year Ended December 31, 20172018
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 1-33926
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TRECORA RESOURCES
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of incorporation or organization)
75-1256622
(I.R.S. Employer
Identification No.)
1650 Hwy 6 S, Suite 190
Sugar Land, TX
(Address of principal executive offices)
77478
(Zip code)

Registrant's telephone number, including area code: (409) 385-8300(281) 980-5522
Securities registered pursuant to Section 12(b) of the Act:
None
Title of ClassName of exchange on which registered
Common stock, par value $0.10 per shareNew York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act:
Title of Class Name of exchange on which registeredNone
                                                                                                                                      Common stock, par value $0.10 per share                                                                                                New 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. Yes No   Noý

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 No ý
_____________________

Indicate by check mark whether the registrant (l) 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. YesýNo

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted 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 and post such files). YesýNo
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý
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 ý
Non-accelerated
Large accelerated filer ☐
Accelerated filer Smaller reporting companyý
Non-accelerated filer ☐Smaller reporting company ☐
Emerging growth company ☐
EmergingIf 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 is a shell company (as defined in Rule 12b-2 of the Act.) Yes No ý
The aggregate market value on June 30, 2017,2018, of the registrant's voting securities held by non-affiliates was approximately $190$254 million.
Number of shares of registrant's Common Stock, par value $0.10 per share, outstanding as of March 7, 20184, 2019 (excluding 119,2217,540 shares of treasury stock): 24,387,625.

24,686,830.
DOCUMENTS INCORPORATED BY REFERENCE

Part III incorporates information by reference from the definitive proxy statement for the registrant's Annual Meeting of Stockholders to be held on or about May 15, 2018.

2019.

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PART I

Item 1.   Business.

General

General
Trecora Resources (the "Company") was incorporated in the State of Delaware in 1967. The Company's principal business activities are the manufacturing of various specialty petrochemical products and synthetic waxes and the provision of custom processing services. Unless the context requires otherwise, references to "we," "us," "our," and the "Company" are intended to mean consolidated Trecora Resources and its subsidiaries.

This document includes the following abbreviations:
(1)TREC – Trecora Resources
(2)TOCCO – Texas Oil & Chemical Co. II, Inc. – Wholly owned subsidiary of TREC and parent of SHR and TC
(3)SHR – South Hampton Resources, Inc. – Petrochemical segment and parent of GSPL
(4)GSPL – Gulf State Pipe Line Co, Inc. – Pipeline support for the petrochemical segment
(5)TC – Trecora Chemical, Inc. – Specialty wax segment
(6)AMAK – Al Masane Al Kobra Mining Company – Mining equity investment – 33% ownership
(7)PEVM – Pioche Ely Valley Mines, Inc. – Inactive mine - 55% ownership
(8)Acquisition – October 1, 2014, purchase of TC

The Company also owns a 33% interest in AMAK,Al Masane Al Kobra Mining Company ("AMAK"), a Saudi Arabian closed joint stock mining company, which is engaged in the commercial production of copper and zinc concentrates and silver and gold doré. Finally, we haveThe Company also has a 55% interest in PEVM,Pioche Ely Valley Mines, Inc. ("PEVM"), a Nevada mining corporation, which presently does not conduct any substantial business activity but owns undeveloped properties in the United States.
This document includes the following abbreviations:
(1)TREC – Trecora Resources
(2)TOCCO – Texas Oil & Chemical Co. II, Inc. – Wholly owned subsidiary of TREC and parent of SHR and TC
(3)SHR – South Hampton Resources, Inc. – Specialty petrochemical segment and parent of GSPL
(4)GSPL – Gulf State Pipe Line Co, Inc. – Pipeline support for the specialty petrochemical segment
(5)TC – Trecora Chemical, Inc. – Specialty wax segment


Business Segments

We operate in two business segments; the manufacturing of various specialty petrochemical products and the manufacturing of specialty synthetic waxes.

Our specialty petrochemical products segment is conducted through SHR, a Texas corporation. SHR owns and operates a specialty petrochemical facility near Silsbee, Texas which produces high purity hydrocarbons and other petroleum based products including isopentane, normal pentane, isohexane and hexane. These products are used in the production of polyethylene, packaging, polypropylene, expandable polystyrene, poly-iso/urethane foams, crude oil from the Canadian tar sands, and in the catalyst support industry.   Our specialty petrochemical products are typically transported to customers by rail car, tank truck, iso-container, and by ship. SHR owns all of the capital stock of GSPL, a Texas corporation, which owns and operates pipelines that connect the SHR facility to a natural gas line, to SHR's truck and rail loading terminal and to a major petroleum products pipeline owned by an unaffiliated third party. SHR also provides custom processing services.

Our specialty synthetic wax segment is conducted through TC, a Texas corporation, located in Pasadena, Texas which produces specialty polyethylene and poly alpha olefin waxes and provides custom processing services. The specialty polyethylene waxes are used in markets from paints and inks to adhesives, coatings, and PVC lubricants. The highly specialized synthetic poly alpha olefin waxes are used in applications such as toner in printers and as additives for candles providing rigidity and retention of fragrances.candles. These waxes are sold in solid form as pastilles or, for large adhesive companies, in bulk liquid form.

See Note 1817 to the Consolidated Financial Statements for more information.

United States Specialty Petrochemical Operations

SHR's specialty petrochemical facility is located in Silsbee, Texas approximately 30 miles north of Beaumont and 90 miles east of Houston. The facility consists of eight operating units which, while interconnected, make distinct products through differing processes: (i) a Penhex Unit; (ii) a Reformer Unit; (iii) a Cyclo-pentane Unit; (iv) an Aromax® Unit;Advanced Reformer unit; (v) an Aromatics Hydrogenation Unit; (vi) a White Oil Fractionation Unit; (vii) a Hydrocarbon Processing Demonstration UnitUnit; and (viii) a P-Xylene Unit. All of these units are currently in operation.

The Penhex Unit currently has the permitted capacity to process approximately 11,00011,000 barrels per day of fresh feed with thefeed. The Reformer Unit, the Aromax® Unit,Advanced Reformer unit, and the Cyclo-Pentane Unit further processingprocess streams produced by the Penhex Unit. The Aromatics Hydrogenation Unit has a capacitywas taken out of approximately 400 barrels per day,service and decommissioned in 2018 with the start up of the new Advanced Reformer unit. The White Oils Fractionation Unit has a capacity of approximately 3,000 barrels per day. The Hydrocarbon Processing Demonstration Unit has a capacity of approximately 300 gallons per day. The P-Xylene Unit has a capacity of approximately 20,000 pounds per year. The facility generally consists of equipment commonly found in most petrochemical facilities such as fractionation towers and hydrogen treaters except the facility is adapted to produce specialized products that are high purity and very consistent with precise specifications that are utilized in the petrochemical industry as solvents, additives, blowing agents and cooling agents. We produce eight distinct product streams and market several combinations of blends as needed in various customer applications. We do not produce motor fuel products or any other commodity type products commonly sold directly to retail consumers or outlets.

We believe we are positioned to benefit from capital investments that we have recently completed. We now have sufficient pentane capacity to maintain our share of market growth for the foreseeable future. We believe that the Advanced Reformer unit will contribute to increased revenue and gross margin over time and as we improve reliability. While petrochemical prices are volatile on a short-term basis, and volumes depend on the demand of our customers' products and overall customer efficiency, our investment decisions are based on our long-term business strategy and outlook.
During 2015, we constructed a new unit which is part of the Penhex Unit, D Train, which began production in the fourth quarter of 2015. The D Train expansion increased our capacity by approximately 6,000 barrels per day of fresh feed. Our present total capacity is 13,000 barrels per day of fresh feed; however, we are currently only permitted to process 11,000 barrels per day. During 2018, we constructed a 4,000 barrels per day Advanced Reformer unit to increase our capability to upgrade byproducts produced from the PenHex Unit and to provide security of hydrogen supply to the plant.
Products from the Penhex Unit, Reformer Unit, Aromax® Unit,Advanced Reformer unit, and Cyclo-pentane Unit are marketed directly to the customer by our marketing personnel. The Penhex Unit had a utilization rate during 2018 of approximately 56% based upon 11,000 barrels per day of capacity. The Penhex Unit had a utilization rate during 2017 of approximately 53% based upon 11,000 barrels per day of capacity. The Penhex Unit had a utilization rate during 2016 of approximately 48% based upon 11,000 barrels per day of capacity.  The Penhex Unit had a utilization rate during 2015 of approximately 84% based upon 7,000 barrels per day.
Penhex Unit capacity is now configured in three independent process units. The three unit configuration improves reliability by reducing the amount of total down time due to mechanical and other factors. This configuration also allows us to use spare capacity for new product development.

The Advanced Reformer and Aromax® UnitsReformer units are operated as needed to support the Penhex and Cyclo-pentane Units. Consequently, utilization rates of these units are driven by production from the Penhex Unit. Operating utilization rates are affected by product demand, raw material composition, mechanical integrity, and unforeseen natural occurrences, such as weather events. The nature of the petrochemical process demands periodic shut-downs for de-coking and other mechanical repairs.  A new 4000 barrel per day Aromax® unit is under construction and is expected to start-up in third quarter 2018.  This unit will provide security of hydrogen supply for Penhex and custom processing projects as well as, increasing value of our by-products.  On
In February 14, 2018, while commissioningattempting to commission the new Aromax®Advanced Reformer unit, itthe unit overheated and ignited a small fire. The response team quickly extinguished the fire without injury, and thereThere was no environmental impact.  Despite the quick reaction of the team, there was some damage to all six heaters in the unit, and the damaged equipment will havehad to be replaced. Insurance adjustors have beenThe total repair cost was approximately $3.5 million. Our insurers covered costs over our $1 million deductible. On July 9, 2018, we announced the safe and successful start up of the Advanced Reformer unit. In mid-September 2018 the Silsbee facility suffered a power outage causing a shutdown of the plant, including the Advanced Reformer unit. In October 2018, after extensive engineering review and consultations with the technology licensor of the Unit it was determined that the unit's catalyst required replacement. We completed the catalyst replacement and successfully restarted the Unit in December 2018. The cost of the catalyst replacement was approximately $3 million. During the time the Advanced Reformer unit was not operation due to the site, and while it is too early to havecatalyst replacement work, we incurred losses as a firm estimateresult of repair costs, it is anticipated thatsales of byproducts at prices well below the Company's insurers will cover any costs over the $1 million deductible.
The Company remains optimistic about the business benefitscost of the new Aromax® unit, which we believe will convert byproducts of pentane production into a significantly higher value byproduct stream through proven technology.

The Aromatics Hydrogenation Unit, White Oils Fractionation Unit, Hydrocarbon Processing Demonstration Unit and P-Xylene Unit are operated as independent and completely segregated processes.  These units are dedicated to the needs of three different toll processing customers.  The customers supply and maintain title to the feedstock, we process the feedstock into products based upon customer specifications, and the customers market the products.  Products may be sold directly from our storage tanks or transported to the customers' location for storage and marketing.  The units have a combined capacity of approximately 3,400 barrels per day. Together they realized a utilization rate of 21% for 2017, 26% for 2016, and 27% for 2015.  The units are operated in accordance with customer needs, and the contracts call for take or pay minimums of production.feedstock.

In support of the specialty petrochemical operation, we own approximately 100 storage tanks with total capacity approaching 285,000 barrels, and 127 acres of land at the plant site, 92 acres of which are developed. We also own a truck and railroad loading terminal consisting of storage tanks, fournine rail spurs, and truck and tank car loading facilities on approximately 63 acres of which 33 acres are developed. As a result of various expansion programs and the toll processing contracts, essentially all of the standing equipment at SHR is operational. We have various surplus equipment stored on-site which may be used in the future to assemble additional processing units as needs arise.

We obtain our feedstock requirements from a sole supplier. The agreement is primarily a logistics convenience.arrangement. The supplier buys or contracts for material and utilizes their tank and pipeline connections to transport into our pipeline. The supplier's revenue above feed cost is primarily related to the cost and operation of the tank, pipelines, and equipment. A contract was signed in August 2015 with a seven year term with subsequent one year renewals unless cancelledcanceled by either party with 180 days' notice. In 2015, a pipeline connection to the supplier's dock was added to give alternative means of receiving feedstock.  Prior to this addition, all feedstock came from Mont Belvieu, Texas.

As a result of various expansion programs and the toll processing contracts, essentially all of the standing equipment at SHR is operational. We have various surplus equipment stored on-site which may be used in the future to assemble additional processing units as needs arise.

GSPL owns and operates three (3) 8-inch diameter pipelines and five (5) 4-inch diameter pipelines, aggregating approximately 70 miles in length connecting SHR's facility to:to (1) a natural gas line, (2) SHR's truck and rail loading terminal and (3) a major petroleum products pipeline system owned by an unaffiliated third party. All pipelines are operated within Texas Railroad Commission and DOT regulations for maintenance and integrity.
We sell our products predominantly to large domestic and international companies. Products are marketed via personal contact and through continued long term relationships. Sales personnel visit customer facilities regularly and also attend various petrochemical conferences throughout the world. We also have a website with information about our products and services. We utilize eitherboth formula and non-formula based or spot pricing depending upon a customer's requirements. Under formula pricing the price charged to the customer is primarily based on a formula which includes as a component the average cost of feedstock over the prior month. With this pricing mechanism, product prices move in conjunction with feedstock prices without the necessity of announced price changes.prices. However, because the formulas use an average feedstock price from the prior month, the movement of prices will trail the movement of costs, and formula prices may or may not reflect our actual feedstock cost for the month during which the product is actually sold. In addition, while

formula pricing can reduce product margins during periods of increasing feedstock costs, during periods of decreasing feedstock costs formula pricing will follow feed costs down but will retain higher margins during the period by trailing the movement of costs by approximately 30 days. During 20172018 and 2016,2017, sales to one customer exceeded 10% of our consolidated revenues. Specifically, inDuring 2018 and 2017, sales to ExxonMobil and their affiliates represented 19.6%were 17% and 20% of revenues.  In 2016 sales to ExxonMobil and their affiliates represented 20.1% of revenues.total revenues, respectively. These sales represented multiple products sold to multiple facilities.

United States Specialty Synthetic Wax Operations

TC is a leading manufacturer of specialty synthetic waxes and also provides custom processing services from its 27.5 acre plant located in an important global hub of the petrochemical industry in Pasadena, Texas. TC provides custom manufacturing, hydrogenation, distillation, blending, forming and packaging of finished and intermediate products and wax products for coatings, hot melt adhesives and lubricants. Situated near the Houston Ship Channel, the facility allows for easy access to international shipping and direct loading to rail or truck. The location is within reach of major chemical pipelines and on-site access to a steam pipeline and dedicated hydrogen line create a platform for expansion of both wax production capacity and custom processing capabilities. We manufacture a variety of hard, high melting point, low to medium viscosity polyethylene wax products along with a wide range of other waxes and lubricants. These products are used in a variety of applications includingincluding: performance additives for hot melt adhesives; penetration and melting point modifiers for paraffin and microcrystalline waxes; lubrication and processing aides for plastics, PVC, rubber; and dry stir-in additives for inks. In oxidized forms, applications also include use in textile emulsions.

TC also provides turnkey custom manufacturing services including quality assurance, transportation and process optimization. The plant has high vacuum distillation capability for the separation of temperature sensitive materials. We have a fully equipped laboratory and pilot plant facility and a highly trained, technically proficient team of engineers and chemists suited to handle the rapid deployment of new custom processes and development of new wax products. TC's custom manufacturing services provide a range of specialized capabilities to chemical and industrial customer including synthesis, hydrogenation, distillation, forming and propoxylation in addition to a number of other chemical processes.

United States Mineral Interests

Our only mineral interest in the United States is our 55% ownership interest in an inactive corporation, PEVM. PEVM's properties include 48 patented and 5 unpatented claims totaling approximately 1,500 acres. All of the claims are located in Lincoln County, NV.

At this time, neither we nor PEVM have plans to develop the mining assets near Pioche, NV. Periodically proposals are received from outside parties who are interested in developing or using certain assets. We do not anticipate making any significant domestic mining capital expenditures.



Environmental

Matters pertaining to the environment are discussed in Part I, Item 1A. Risk Factors;Factors, Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations;Operations and Notes 2 and 1514 to the Consolidated Financial Statements.

In 1993 during remediation of a small spill area, the Texas Commission on Environmental Quality (TCEQ)("TCEQ") required SHR to drill a well to check for groundwater contamination under the spill area. Two pools of hydrocarbons were discovered to be floating on the groundwater at a depth of approximately 25 feet. One pool is under the site of a former gas processing plant owned and operated by Sinclair, Arco and others before its purchase by SHR in 1981. Analysis of the material indicates it entered the ground prior to SHR's acquisition of the property. The other pool is under the original SHR facility and analysis indicates the material was deposited decades ago. Tests conducted have determined that the hydrocarbons are contained on the property and not migrating in any direction. The recovery process was initiated in June 1998 and approximately $53,000 was spent setting up the system. The recovery is proceeding as planned and is expected to continue for many years until the pools are reduced to acceptable levels. Expenses of recovery and periodic migration testing are being recorded as normal operating expenses. Expenses for future recovery are expected to stabilize and be less per annum than the initial set up cost, although there is no assurance of this effect. The light hydrocarbon recovered from the former gas plant site is compatible with our normal Penhex feedstock and is accumulated and transferred into the Penhex feedstock tank. The material recovered from under the original SHR site is accumulated and sold as a by-product. Approximately 144, 80, 70, and 70 barrels were recovered during 2018, 2017, 2016 and 2015,2016, respectively. The recovered material had an economica value of approximately $5,800, $4,200, and $3,200 during 2018, 2017, and $3,500 during 2017, 2016, and 2015, respectively. Consulting engineers estimate that as much as 20,000 barrels of recoverable material may be available to us for use in our process or for sale.  At current market values this material, if fully recovered would be worth approximately $1.0 million. The final volume present and the ability to recover it are both highly speculative issues due to the area over which it is spread and the fragmented nature of the pockets of hydrocarbon. We have drilled additional wells periodically to further delineate the boundaries of the pools and to ensure that migration has not taken place. These tests confirmed that no migration of the hydrocarbon pools has occurred. The TCEQ has deemed the current action plan acceptable and reviews the plan on a semi-annual basis.

Personnel

Personnel
The number of our regular, U.S. based employees was approximately 280, 324, 310, and 296310 for the years ended December 31, 2018, 2017, 2016, and 2015,2016, respectively. Of these employees, none are covered by collective bargaining agreements. Regular employees are defined as active executive, management, professional, technical and wage employees who work full time or part time for the Company and are covered by our benefit plans and programs. Our workforce has increaseddecreased primarily due to expansionscompletion of capital projects at both facilities.

our facilities including a workforce downsizing at SHR in December 2018.
Competition

The specialty petrochemical, specialty wax, and mining industries are highly competitive. There is competition within the industries and also with other industries in supplying the chemical and mineral needs of both industrial and individual consumers. We compete with other firms in the sale or purchase of needed goods and services and employ all methods of competition which are lawful and appropriate for such purposes. See further discussion under "Intense competition" in Part I, Item 1A. Risk Factors.

Investment in AMAK

As of December 31, 2017,2018, we owned a 33.4% interest in AMAK.

Location, Access and Transportation.

The facility site is located in Najran province in southwestern Saudi Arabia. Najran, the capital of the province of the same name, is approximately 700 km southeast of Jeddah. The site is located 145 km northwest of Najran, midway between the outpost of Rihab and the district town of Sufah. A modern, paved highway extends from Najran through the town of Habuna passing by the project site and on to Sufah. Another modern, paved highway extends west from the town of Tirima about 30 km to the Asir provincial line, becomes a four-lane divided highway, and intersects with a highway leading to Khamis Mushait and Abha. A joining highway then extends down the western slope of the Sarawat
mountains to the coastal highway which follows the coast south to the Port of Jazan. The latter is the route AMAK's trucks carry concentrate to the port for export.

Conditions to Retain Title.

The Saudi government granted the Company a mining lease for the Al Masane area comprising approximately 44 square kilometers or approximately 10,870 acres on May 22, 1993 (the "Lease") under Royal Decree No. M/17. The Lease was assigned to AMAK in December 2008. The initial term of the Lease is thirty years beginning May 22, 1993, with AMAK having the option to renew or extend the term of the Lease for additional periods not to exceed twenty years. Under the Lease, AMAK is obligated to pay advance surface rental in the amount of 10,000 Saudi riyals (approximately $2,667 at the current exchange rate) per square kilometer per year (approximately $117,300 annually) during the term of the Lease. In addition, AMAK must pay income tax in accordance with the laws of Saudi Arabia and pay all infrastructure costs. The Lease gives the Saudi Arabian government priority to purchase any gold production from the project, as well as the right to purchase up to 10% of the annual production of other minerals on the same terms and conditions then available to other similar buyers and at current prices then prevailing in the free market. Furthermore, the Lease contains provisions requiring that preferences be given to Saudi Arabian suppliers and contractors and that AMAK employ Saudi Arabian citizens and provide training to Saudi Arabian personnel. In November 2015 AMAK received notification of final approval for additional licenses and leases. The approval includes an additional 151 square kilometers (km("km22") of territory contiguous to AMAK's current 44 km2 mine. The new territory comprises the Guyan and Qatan exploration licenses covering 151 km2, and within the Guyan exploration license, a 10 km2 mining lease, which has potential for significant gold recovery. Under the new leases, AMAK is required to pay surface rental of SR 110,000 (approximately $29,333) for a period of 20 years expiring in 2035.

Rock Formations and Mineralization.

Three mineralized zones, the Saadah, Al Houra and Moyeath, have been outlined by diamond drilling. The Saadah and Al Houra zones occur in a volcanic sequence that consists of two mafic-felsic sequences with interbedded exhalative cherts and metasedimentary rocks. The Moyeath zone was discovered after the completion of underground development in 1980. It is located along an angular unconformity with underlying felsic volcanics and shales. The principle sulphide minerals in all of the zones are pyrite, sphalerite, and chalcopyrite. The precious metals occur chiefly in tetrahedrite and as tellurides and electrum.

Description of Current Property Condition.

The AMAK facility includes an underground mine, ore-treatment plant and related infrastructures. The ore-treatment plant is comprised of primary crushing, ore storage, SAG milling and pebble crushing, secondary ball milling, pre-flotation, copper and zinc flotation, concentrate thickening, tailings filtration, cyanide leaching, reagent handling, tailings dam and utilities. Related infrastructure includes a 300 man capacity camp for single status accommodation for expatriates and Saudi Arabian employees, an on-site medical facility, a service building for 300 employees, on-site diesel generation of 15 megawatts, potable water supply primarily from an underground aquifer, sewage treatment plant and an assay laboratory. The facilities at the Port of Jazan are comprised of unloading facilities, concentrate storage and reclamation and ship loading facilities. The above-ground ore processing facility became fully operational during the second half of 2012. Late in the fourth quarter of 2015, AMAK temporarily closed the operation to preserve the assets in the ground while initiating steps to improve efficiencies and optimize operations. The plant resumed operation in the fourth quarter of 2016 and operating rates, metal recoveries and concentrate quality improvedhas continued to improve throughout 2017.

2017 and 2018.
AMAK shipped approximately 58,000, 28,000, 16,000, and 51,00016,000 metric tons of copper and zinc concentrate to outside smelters during 2018, 2017, 2016, and 2015,2016, respectively. In 2014 AMAK initiated operation of its precious metal recovery circuit at the mill and produced gold and silver doré intermittently through 2014 and 2015. The precious metals circuit was recommissioned in the fourth quarter of 2017 and is expected to productproduced commercial quantities of gold and silver bearing doré in 2018.

Saudi Industrial Development Fund ("SIDF") Loan and Guarantee

On October 24, 2010, we executed a limited guarantee in favor of the SIDF guaranteeing up to 41% of the SIDF loan to AMAK in the principal amount of 330,000,000 Saudi Riyals (US$88,000,000) (the "Loan"). As a condition of the Loan, SIDF required all shareholders of AMAK to execute personal or corporate guarantees totaling 162.55% of the overall Loan amount. As ownership percentages have changed over time, the loan guarantee allocation has
not changed. The other AMAK shareholders provided personal guarantees. We were the only AMAK shareholder providing a corporate guarantee. The loan was required in order for AMAK to fund construction of the underground and above-ground portions of its mining project in southwest Saudi Arabia and to provide working capital for commencement of operations. See Note 1514 to the Consolidated Financial Statements.


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Accounting Treatment of Investment in AMAK.

We have significant influence over the operating and financial policies of AMAK and therefore, account for it using the equity method. We have one representative on the Executive Committee of the Board of Directors of AMAK. One of our directors and officers is Chair of the Audit Committee of the Board of Directors of AMAK.   We also have two directorsone director who serves as Chair on the Commercial Committee of AMAK, one of whom is Chair.AMAK. AMAK is effectively self-operating under a new, experienced management team. See Note 1110 to the Notes to the Consolidated Financial Statements.

We assess our investment in AMAK for impairment when events are identified, or there are changes in circumstances that indicate that the carrying amount of the investment might not be recoverable. We consider recoverable ore reserves, mineral prices,

operational costs, and the amount and timing of the cash flows to be generated by the production of those reserves, as well as recent equity transactions within AMAK.

Available Information

We will provide paper copies of this Annual Report on Form 10-K, our quarterly reports on Form 10-Q, our current reports on Form 8-K and amendments to those reports, all as filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), free of charge upon written or oral request to Trecora Resources, P. O. Box 1636, Silsbee,1650 Hwy 6 S, Suite 190, Sugar Land, TX 77656, (409) 385-8300.77478, (281) 980-5522. These reports are also available free of charge on our website, www.trecora.com,, as soon as reasonably practicable after they are filed electronically with the SEC.U.S. Securities and Exchange Commission ("SEC"). SHR also has a website at www.southhamptonr.com,, TC has a website at www.trecchem.com,, and AMAK has a website at www.amak.com.sa.www.amak.com.sa. These websites and the information contained on or connected to them are not incorporated by reference herein to the SEC filings.

Item 1A.   Risk Factors.

Our financial and operating resultsWe are subject to a variety of risks inherent in the global specialty petrochemical, specialty wax and mining businesses (due to our investment in AMAK). businesses. Many of these risk factors are not within our control and could adversely affect our business, our financial and operating results of operations or our financial condition.  We discuss some of these risks in more detail below in no particular order of priority.

DependenceWe rely on a limited number of customers, including one customer that represented more than 10% of our consolidated revenue in 2018. A significant change in customer relationships or in customer demand for our products could materially adversely affect our results of operations, financial position and cash flows.

During 2017, sales to one customer exceeded 10 percent of SHR's revenues.  See the information regarding dependenceWe rely on a limited number of customers. Our largest customer, ExxonMobil and its affiliates, represented approximately 17.0% of our consolidated revenues in 2018. A significant reduction in sales to any of our other key customers set forth in Part I, Item I Business under the caption "United States Specialty Petrochemical Operation". The total loss of a large volume customer could materially adversely affect our ability to market products on a competitive basisresults of operations, financial position and generate a profit.cash flows, and could result from our key customers further diversifying their product sourcing, experiencing financial difficulty or undergoing consolidation.

Intense competitionOur industry is highly competitive, and we may lose market share to other producers of specialty petrochemicals, specialty waxes or other products that can be substituted for our products, which may adversely affect our results of operations, financial position and cash flows.

The Company competesOur industry is highly competitive, and we face significant competition from both large international producers and from smaller regional competitors. Our competitors may improve their competitive position in the petrochemical industry. Accordingly, we are subject to intense competition among a large numberour core markets by successfully introducing new products, improving their manufacturing processes or expanding their capacity or manufacturing facilities. Further, some of companies, both larger and smaller than us, many of which have financial capability, facilities, personnel and other resources greater than us. In the specialty products and solvents markets, the Company has one principal competitor in North America, Phillips 66.  Multipleour competitors exist when searchingbenefit from advantageous cost positions that could make it increasingly difficult for new business in other parts of the world.  We compete primarily on the basis of performance, price, quality, reliability, reputation, distribution, service, and account relationships. If our products, services, support and cost structure do not enable us to compete successfully basedin certain markets. If we are unable to keep pace with our competitors' product and manufacturing process innovations, cost position or alternative value proposition, it could have a material adverse effect on anyour results of those criteria, our operations, resultsfinancial condition and prospects could be harmed.  The Company hascash flows.

In addition, we face increased competition from companies that may have greater financial resources and different cost structures, alternative values or strategic goals than us. We have a portfolio of businesses andacross which we must allocate our available resources, across these businesses while competing with companies thatmay specialize in one or moreonly certain of theseour product lines. As a result, we may invest less in certain areas of our businessesbusiness than our competitors, do, and thesesuch competitors may have greater financial, technical and marketing resources available to them than our businesses that compete against them. Industry consolidation may also affect competition by creating larger, more homogeneous and potentially stronger competitors in the markets in which we compete, and competitors also may affect our business by entering into exclusive arrangements with existing or potential customers or suppliers. We may have to continue to lower the prices of many of our products and services to stay competitive, while at the same time, trying to maintain or improve revenue and gross margin.


8

key employees, our inability to attract and retain new qualified employees or our inability to keep our employees focused on our strategies and goals could have an adverse impact on our operations.

ChangesIn order to be successful, we must attract, retain and motivate executives and other key employees including those in technologymanagerial, technical, safety, sales and marketing positions. We must also keep employees focused on our strategies and goals. The failure to hire, or loss of, key employees in a competitive industry could have a significant adverse impact on our operations. In addition, an important component of our competitive performance is our ability to operate safely and efficiently, including our ability to manage expenses and minimize the production of low margin products on an on-going basis. This requires continuous management focus, including technological improvements, safe operations, cost control and productivity enhancements. The extent to which we manage these factors will impact our performance relative to competition.


We do not control the activities of AMAK and are dependent on AMAK's management and board of directors.

Although we believe that we have influence over the operating and financial policies of AMAK, we do not control AMAK's activities. The extent to which we are able to influence specific operating and financial decisions depends on our ability to persuade other AMAK board members and management regarding these policies. Our ability to persuade them may be adversely affected by cultural differences, differing accounting and management practices and differing governmental laws and regulations. In addition, we rely upon AMAK's management and board of directors to direct the operations of AMAK, including employing various engineering and financial advisors to assist in the development and evaluation of the mining projects in Saudi Arabia. We also rely on management of AMAK to provide timely, accurate financial information required for inclusion with our reports filed with the SEC.

There can be no assurance that our investment in AMAK will not be negatively impacted by the decisions made by AMAK's management and board of directors regarding AMAK's activities, including with respect to the selection and use of consultants and experienced personnel to manage the operation in Saudi Arabia.

Maintenance, expansion and refurbishment of our facilities and the development and implementation of new manufacturing processes involve significant risks which may adversely affect our business, results of operations, financial condition and cash flows.

Our facilities require periodic maintenance, upgrading, expansion, refurbishment or improvement. Any unexpected operational or mechanical failure, including failure associated with breakdowns and forced outages, could reduce our facilities' production capacity below expected levels which would reduce our revenues and profitability. Unanticipated expenditures associated with maintaining, upgrading, expanding, refurbishing or improving our facilities may also reduce profitability.

If we make any major modifications to our facilities, such modifications likely would result in substantial additional capital expenditures and may prolong the time necessary to bring the facility on line. We may also choose to refurbish or upgrade our facilities based on our assessment that such activity will provide adequate financial returns. However, such activities require time for development before commencement of commercial operations, and key assumptions underpinning a decision to make such an investment may prove incorrect, including assumptions regarding construction costs, demand growth and timing which could have a material adverse effect on our business, results of operations, financial condition and cash flows.
Finally, we may not be successful or efficient in developing or implementing new production processes. Innovation in production processes involves significant expense and carries inherent risks, including difficulties in designing and developing new process technologies, development and production timing delays, lower than anticipated manufacturing yields, and product defects. Disruptions in the production process can also result from errors, defects in materials, delays in obtaining or revising operating permits and licenses, returns of product from customers, interruption in our supply of materials or resources and disruptions at our facilities due to accidents, maintenance issues, or unsafe working conditions, all of which could affect the timing of production ramps and yields. Production issues can lead to increased costs and may affect our ability to meet product demand, which could adversely impact our business, results of operations, financial condition and cash flows.

The covenants in the instruments that govern our outstanding indebtedness may limit our operating and financial flexibility.

The covenants in the instruments that govern our outstanding indebtedness limit our ability to, among other things:
incur indebtedness and liens;
make loans and investments;
prepay, redeem or repurchase debt;
engage in acquisitions, consolidations, asset dispositions, sale-leaseback transactions and affiliate transactions;
change our business;
amend some of our debt agreements; and
grant negative pledges to other creditors.

In addition, the ARC Agreement also has financial covenants that require TOCCO to maintain a maximum Consolidated Leverage Ratio and minimum Consolidated Fixed Charge Coverage Ratio (each as defined in the ARC Agreement). See Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations-Liquidity and Capital Resources-Credit Agreement.

A failure by us or our subsidiaries to comply with the covenants and restrictions contained in the agreements governing our indebtedness could result in an event of default under such indebtedness, which could adversely affect our ability to respond to changes in our business and manage our operations. Upon the occurrence of an event of default under any of the agreements

governing our indebtedness, the lenders could elect to declare all amounts outstanding to be due and payable and exercise other remedies as set forth in the agreements. Further, an event of default or acceleration of indebtedness under one instrument may constitute an event of default under another instrument. If any of our indebtedness were to be accelerated, there can be no assurance that our assets would be sufficient to repay this indebtedness in full, which could have a material adverse effect on our ability to continue to operate as a going concern.

Our substantial indebtedness could limit cash flow available for our operations and could adversely affect our ability to service debt or obtain additional financing if necessary.

As of December 31, 2018, we had $18 million in borrowings outstanding under our revolving credit facility (the "Revolving Facility") and $84.5 million in borrowings outstanding under our term loan facility (the "Term Loan Facility" and, together with the Revolving Facility, the "Credit Facilities"). Pursuant to the terms of the amended and restated credit agreement (as amended to the date hereof, the "ARC Agreement") governing the Credit Facilities, we also have the option, at any time, to request an increase to the commitment under the Revolving Facility and/or the Term Loan Facility by an additional amount of up to $50.0 million in the aggregate, subject to lenders acceptance of the increased commitment and other conditions.

Although the agreements governing our existing indebtedness contain restrictions on the incurrence of additional indebtedness, these restrictions are subject to a number of important exceptions, and additional indebtedness that we may incur from time to time to finance projects or for other reasons in compliance with these restrictions could be substantial. If we incur significant additional indebtedness, the related risks that we face could increase.

Our current, or any future, indebtedness could:

limit our flexibility in planning for, or reacting to, changes in the markets in which we compete;

place us at a competitive disadvantage relative to our competitors with less indebtedness;

limit our ability to reinvest in our business;

render us more vulnerable to general adverse economic, regulatory and industry conditions; and

require us to dedicate a substantial portion of our cash flow to service our indebtedness.

Our ability to meet our cash requirements, including our debt service obligations, is dependent upon our ability to maintain or enhance technological capabilities, developour operating performance, which will be subject to general economic and market productscompetitive conditions and applicationsto financial, business and other factors, many of which are beyond our control. We cannot provide assurance that meet changing customerour business will generate sufficient cash flow from operations to fund our cash requirements and successfully anticipate or respond to technological changes in a cost effective and timely manner will likely impact our future business success. We compete in a number of areas including, but not limited to, product quality, performance, and customer service.  Our inability to maintain a technological edge, innovate and improve our products could cause a declinedebt service obligations.

Conditions in the demand and sales of our products, andglobal economy may adversely impactaffect our results of operations, financial positioncondition and cash flows.

Climate change and greenhouse gas restrictions

Due to concern over the risk of climate change, a number of countries have adopted, or are considering the adoption of, regulatory frameworks to reduce greenhouse gas emissions. These include adoption of cap and trade regimes, carbon taxes, restrictive permitting, increased efficiency standards, and incentives or mandates for renewable energy. These requirements could make our products more expensive, lengthen project implementation times, and reduce demand for hydrocarbons, as well as shift hydrocarbon demand toward relatively lower-carbon sources such as natural gas. Current and pending greenhouse gas regulations may also increase our compliance costs, such as for monitoring or sequestering emissions.

Varying economic conditions

The demand for our products and metals correlateshave historically correlated closely with general economic growth rates. The occurrence of recessions or other periods of low or negative growth will typically have a direct adverse impact on our results.results of operations, financial condition and cash flows. Other factors that affect general economic conditions in the world or in a major region, such as changes in population growth rates or periods of civil unrest, also impact the demand for our products and metals.products. Economic conditions that impair the functioning of financial markets and financial institutions also pose risks to us, including risks to the safety of our financial assets and to the ability of our partners and customers to fulfill their commitments to us.

In addition, the revenue and profitability of our operations have historically varied,been subject to fluctuation, which makes future financial results less predictable. Our revenue, gross margin and profit vary among our products, customer groups and geographic markets; and therefore, will likely be different in future periods than currently.markets. Overall gross margins and profitability in any given period are dependent partially on the product, customer and geographic mix reflected in that period's net revenue. In addition, newer geographic markets may be relatively less profitable due to investments associated with entering those markets and local pricing pressures. Market trends, competitive pressures, increased raw material or shipping costs, regulatory impacts and other factors may result in reductions in revenue or pressure on gross margins of certain segments in a given period which may necessitate adjustments to our operations.

Transportation impedimentsTo service our current, and any future, indebtedness, we will require a significant amount of cash, which may adversely affect our future results.

Although we tryOur ability to anticipate problems with suppliesgenerate cash depends on many factors beyond our control, and any failure to meet our debt service obligations

could harm our business, results of raw materials by planning ahead, any significant disruption could affectoperations and financial condition. Our ability to make payments on and to refinance our indebtedness, and to fund working capital needs and planned capital expenditures, will depend on our ability to obtain raw materials at affordable costs which could adversely impactgenerate cash in the future. This, to a certain extent, is subject to general economic, financial, competitive, business, legislative, regulatory and other factors that are beyond our results of operations, financial position and cash flows.control.

We maintain a number of owned trucks and trailers and leased railcars; however, we also rely upon transportation provided by third parties (including common carriers, rail companies and trans-ocean cargo companies)If our business does not generate sufficient cash flow from operations or if future borrowings are not available to deliver productsus in an amount sufficient to enable us to pay our customers. Our accessindebtedness, or to third-party transportation is not guaranteed, andfund our other liquidity needs, we may be unableneed to transportrefinance all or a portion of our products in a timely manner in certain circumstancesindebtedness (or otherwise seek amendment or at economically attractive rates. Disruptions in transportation are common.  Our inabilityrelief from the terms of our indebtedness), on or before the maturity thereof, sell assets, reduce or delay capital investments or seek to ship products in a timely and efficient mannerraise additional capital, any of which could have a material adverse effect on our operations. We might not generate sufficient cash flow to repay indebtedness as currently anticipated. In addition, we may not be able to effect any of these actions, if necessary, on commercially reasonable terms or at all. Our ability to restructure or refinance our indebtedness, will depend on the condition of the capital markets and our financial condition at such time. Any refinancing of our indebtedness could be at higher interest rates and may require us to comply with more onerous covenants, which could further restrict our business operations. The terms of existing or future debt instruments may limit or prevent us from taking any of these actions. Our inability to generate sufficient cash flow to satisfy our debt service obligations, or to refinance or restructure our obligations on commercially reasonable terms or at all, would have a material adverse effect on our business, results of operations and financial conditions.

There are certain hazards and risks inherent in our operations that could adversely affect those operations and results of operations.

Chemical plant operating risksoperations and financial condition.

As a manufacturer and distributor of diversified chemical products, our business is subject to operating risks common toinherent in chemical manufacturing, storage, handling and transportation. These risks include, but are not limited to, fires, explosions, inclementsevere weather and natural disasters, mechanical failure, unscheduled downtime, loss of raw materials or our products, transportation interruptions, remediation, chemical spills, terrorist acts or war, discharges or releases of toxic or hazardous substances or gases. These hazards can cause personal injury and loss of life, severe damage to, or destruction of, property and equipment and environmental contamination. In addition, our suppliers are also subject to similar risks that may adversely impact our production capabilities. A significant limitation on our ability to manufacture products due to disruption of manufacturing
operations or related infrastructure could have a material adverse effect on our financial condition and results of operations.
Hazardous material liabilityoperations and riskfinancial condition.

Our manufacturing and distribution of chemical products involves the controlled use of hazardous materials. Our operations, therefore, are subject to various associated risks, including chemical spills, discharges or releases of toxic or hazardous substances or gases, fires, mechanical failure, storage facility leaks and similar events. Our suppliers are subject to similar risks that may adversely impact the availability of raw materials. While we adapt our manufacturing and distribution processes and controls to minimize the environmental control standardsinherent risk of regulatory authorities,our operations, to promote workplace safety and to minimize the potential for human error, we cannot completely eliminate the risk of accidental contamination or injury from hazardous or regulated materials, including injury of our employees, individuals who handle our products or goods treated with our products, or others who claim to have been exposed to our products, nor can we completely eliminate the unanticipated interruption or suspension of operations at our facilities due to such events. We may be held liable for significant damages or fines in the event of contamination or injury, and such assessed damages or fines could have a material adverse effect on our results of operations and financial performanceconditions. Our property, business interruption and casualty insurance may not fully insure us against all potential hazards incidental to our business.

Increases in the costs of our raw materials could have an adverse effect on our financial condition and results of operations.

Environmental regulationoperations if those costs cannot be passed onto our customers.

Our industriesresults of operations are directly affected by the cost of raw materials. Since the cost of these primary raw materials comprise a significant amount of our total cost of goods sold, the selling prices for our products and therefore our total revenue is impacted by movements in these raw material costs, as well as the cost of other inputs. In the past we have experienced erratic and significant changes in the costs of these raw materials, the cost of which has generally correlated with changes in energy prices, supply and demand factors, and prices for natural gas and crude oil. In addition, product mix can have an impact on our overall unit selling prices, since we provide an extensive product offering and therefore experience a wide range of unit selling prices. Because of the significant portion of our cost of goods sold represented by these raw materials, our gross profit margins could be adversely affected by changes in the cost of these raw materials if we are unable to pass the increases on to our customers.

Due to volatile raw material prices, there can be no assurance that we can continue to recover raw material costs or retain customers in the future. For example, our logistics costs have increased substantially within the past three years, narrowing our profit margins. This may force us to increase our pricing, which could cause customers to consider competitors' products, some of which may be available at a lower cost. Significant loss of customers could result in a material adverse effect on our results of operations, financial condition and cash flows.


If the availability of our raw materials is limited, we may be unable to produce some of our products in quantities sufficient to meet customer demand or on favorable economic terms, which could have an adverse effect on our results of operations, financial condition and cash flows.

We use polyethylene waxes in our specialty synthetic wax segment and use additional non-primary raw materials in the production of our products in the specialty petrochemical segment and synthetic wax segment. Suppliers may not be able to meet our raw material requirements and we may not be able to obtain substitute supplies from alternative suppliers in sufficient quantities, on economic terms, or in a timely manner. A lack of timely availability of our raw materials in the quantities we require to produce our products could result in our inability to meet customer demand and could have a material adverse effect on our results of operations, financial condition and cash flows.

Certain activist stockholders actions could cause us to incur expense and hinder execution of our strategy.

While we seek to actively engage with our stockholders and consider their views on business and strategy, we could be subject to actions or proposals from our stockholders that do not align with our business strategies or the interests of our other stockholders. Responding to these stockholders could be costly and time-consuming, disrupt our business and operations and divert the attention of our management. Furthermore, uncertainties associated with such activities could negatively impact our ability to execute our strategic plan, retain customers and skilled employees and affect long-term growth. In addition, such activities may cause our stock price to fluctuate based on temporary or speculative market perceptions that do not necessarily reflect our business operations.

We expect to continue to incur capital expenditures and operating costs as a result of our compliance with existing and future environmental laws and regulations.

Our industry is subject to extensive environmental regulation pursuantlaws and regulations related to a varietythe protection of federalthe environment. These laws and state regulations.  Such environmental legislation imposes,regulations continue to increase in both number and complexity and affect our operations with respect to, among other things,things: the discharge of pollutants into the environment; emissions into the atmosphere (including greenhouse gas emissions); and restrictions, liabilities and obligations in connection with storage, transportation, treatment and disposal of hazardous substances and waste. LegislationWe are also requiressubject to laws and regulations that require us to operate and maintain our facilities to the satisfaction of applicable regulatory authorities. Costs to comply with these regulations are significant to our business.  FailureIn addition, failure to comply with these laws or regulations, or failure to obtain required permits from applicable regulatory authorities, may expose us to fines, penalties or interruptions in operationsoperations. To the extent these capital expenditures or operating costs are not ultimately reflected in the prices of our products and services, or that could be material to our results of operations.  In addition, some of the finished goods our customers produce, such as expandable polystyrene (EPS),we are subject to increasing scrutinyfines, penalties or other interruptions in our operations, our business, results of operations, financial position and regulation, which could leadcash flows may be adversely affected.

If we are unable to a reduction in demandaccess third-party transportation for our products.

Safety, business controls, environmentalraw materials and cyber risk management

Our results depend upon management's ability to minimize the inherent risks of our operations, to control effectively our business activities and to minimize the potential for human error.  We apply rigorous management systems and continuous focus to workplace safety and to avoid spills or other adverse environmental events.  Substantial liabilities and other adverse impacts could result if our systems and controls do not function as intended.  Business risks also include the risk of cyber security breaches.  If our systems for protecting against cyber security risks prove to be insufficient,finished products, we could be adversely affected by having our business systems compromised, our proprietary information altered, lost or stolen, or our business operations disrupted.

The use of a new enterprise resource planning system could cause a financial statement error not to be detected

During 2017 we implemented a new enterprise resource planning ("ERP") system at SHR to replace a previous system.  This was a complex process, and the new system resulted in changes to our internal controls over financial reporting, including disclosure controls and procedures.  The ongoing improvements being made to the new ERP system could adversely affect the effectiveness of our internal controls over financial reporting.

Borrowing ability and indebtedness

In 2014 we entered into an Amended and Restated Credit Agreement ("ARC").  This agreement contains restrictive clauses which may limit our activities, and operational and financial flexibility. We may not be able to borrow under the ARC if an eventfulfill our obligations to our customers in a timely manner, which could have a material adverse effect on our results of default under the terms of the facility occurs.  The ARC contains a number of restrictions that limit our ability, among other things,operations, financial condition and subject to certain limited exceptions, to incur additional indebtedness, pledge our assets as security, guarantee obligations ofcash flows.

We rely upon transportation provided by third parties make investments, undergo a merger or consolidation, dispose of assets or materially change our line of business.
In addition, the ARC requires us(including common carriers, rail companies and trans-ocean cargo companies) to meet certain financial ratios, including fixed charge coverage, total leverage ratio, and asset coverage.  These non-GAAP measures of liquidity are definedreceive raw materials used in the ARC. Our abilityproduction of our products and to meet these financial covenants depends upondeliver finished products to our customers. While we attempt to offset the future successful operating performancerisks associated with third-party transportation issues, including by managing our supplies of the business.raw materials, such mitigation efforts may not be successful. If we failare unable to comply with financial covenants,access third-party transportation at economically attractive rates, or at all, or if there is any other significant disruption in the availability of third-party transportation, we wouldmay not be in default under the ARC and the maturity of our outstanding debt could be accelerated unless
we were able to obtain waivers fromsufficient quantities of raw materials (on favorable terms, or at all) to match the pace of production and/or we may not be able to fulfill our lenders. obligations to our customers in a timely manner, which could have a material adverse effect on our results of operations, financial condition and cash flows.

If we were foundare not able to be in default undercontinue the ARC, it couldtechnological innovation and successful commercial introduction of new products, our customers may turn to other producers to meet their requirements, which may adversely impactaffect our results of operations, financial position and cash flows.

RegulatoryOur industry and litigation

Even in countries with well-developed legal systems wherethe markets into which we do business, we remain exposedsell our products experience periodic technological change and ongoing product improvements. In addition, our customers may introduce new generations of their own products, adopt new or different risk profiles, or require new technological and increased performance specifications that would require us to develop customized products. Our future growth and profitability will depend on our ability to maintain or enhance technological capabilities, develop and market products and applications that meet changing customer requirements and successfully anticipate or respond to technological changes in law thata cost effective and timely manner. Our inability to maintain a technological edge, innovate and improve our products could cause a decline in the demand and sales of our products and adversely affect our results such as increasesof operations, financial position and cash flows.

We are subject to numerous regulations that could require us to modify our current business practices and incur increased costs.

We are subject to numerous regulations, including customs and international trade laws, export control, data privacy, antitrust laws and zoning and occupancy laws that regulate manufacturers generally and/or govern the importation, promotion and sale of our products, the operation of our facilities and our relationship with our customers, suppliers and competitors. In addition, we face risk associated with trade protection laws, policies and measures and other regulatory requirements affecting trade and investment, including loss or modification of exemptions for taxes and tariffs, imposition of new tariffs and duties and import and export licensing requirements. If these laws or regulations were to change or were violated by our management, employees, suppliers, buying agents or trading companies, the costs of certain goods could increase, or we could experience delays in taxes, price controls,shipments of our goods, be subject to fines or penalties, or suffer reputational harm, which could reduce demand for our products and hurt our business and negatively impact our results of operations. In addition, changes in environmental regulations orfederal and state minimum wage laws and other laws that increaserelating to employee benefits could cause us to incur additional wage and benefits costs, which could negatively impact our profitability.

Legal requirements are frequently changed and subject to interpretation, and we are unable to predict the ultimate cost of compliance and government actions to cancel contractswith these requirements or renegotiate items unilaterally.  We may also be adversely affected by the outcome of litigation or other legal proceedings, especially in countries such as the United States in which very large and unpredictable punitive damage awards may occur.  AMAK's mining and exploration leases are subject to the risk of termination if AMAK does not comply with its contractual obligations.  Further,their effects on our investment in AMAK is subject to the risk of expropriation or nationalization. If a dispute arises, we may have to submit to the jurisdiction of a foreign court or panel or may have to enforce the judgment of a foreign court or panel in that foreign jurisdiction.  Because of our substantial international investment, our business is affected by changes in foreign laws and regulations (or interpretation of existing laws and regulations) affecting our industries, and foreign taxation. We will be directly affected by the adoption of rules and regulations (and the interpretations of such rules and regulations) regarding the exploration and development of mineral properties for economic, environmental and other policy reasons.operations. We may be required to make significant capital expenditures or modify our business practices to comply with non-U.S. governmental laws and regulations.  It is also possible that theseexisting or future laws and regulations, which may in the future add significantly toincrease our operating costs or may significantlyand materially limit our business activities. Additionally, our ability to compete in the international market may be adversely affected by non-U.S. governmental regulations favoring or requiring the awarding of leases, concessions and other contracts or exploration licenses to local contractors or requiring foreign contractors to employ citizens of, or purchase supplies from, a particular jurisdiction.  We are not currently aware of any specific situations of this nature, but there are always opportunities for this type of difficulty to arise in the international business environment.

Loss of key personnel and management effectiveness

In order to be successful, we must attract, retain and motivate executives and other key employees including those in managerial, technical, sales, and marketing positions. We must also keep employees focused on our strategies and goals. The failure to hire, or loss of, key employees could have a significant adverse impact on operations.  An important component of our competitive performance is our ability to operate efficiently including our ability to manage expenses and minimize the production of low margin products on an on-going basis.  This requires continuous management focus including technological improvements, cost control and productivity enhancements.  The extent to which we manage these factors will impact our performance relative to competition.business.

Risk associated withFailure to successfully consummate extraordinary transactions, including the integration of other businesses, assets, products or technologies, or realize the financial and strategic goals that were contemplated at the time of any such transaction may adversely affect our future business, results of operations and financial condition.

As part of our business strategy, we sometimes engage in discussions with third parties regardingfrom time to time explore possible investments, acquisitions, strategic alliances, joint ventures, divestitures and outsourcing transactions ("extraordinary(collectively, "extraordinary transactions") and enter into agreements relating to such extraordinary transactions in order to further our business objectives. In order toTo pursue this strategy successfully, we must identify suitable candidates for, and successfully complete, extraordinary transactions, some of which may be large and complex, and manage post-closing issues such as the integration of acquired companiesbusinesses or employees. IntegrationThe expense and other risks ofeffort incurred in exploring and consummating extraordinary transactions, canthe time it takes to integrate an acquisition or our failure to integrate businesses successfully, could result in additional and/or unexpected expenses and losses. We also may not be more pronounced for largersuccessful in negotiating the terms of any potential extraordinary transactions, conducting thorough due diligence, financing an extraordinary transaction or effectively integrating the acquired business, product or technology into our existing business and more complicated transactions, or if multiple transactions are pursued simultaneously. If weoperations. Our due diligence may fail to identify and complete successfully extraordinary transactions that further our strategic objectives,all of the problems, liabilities or other shortcomings or challenges of an acquired business, product or technology. Moreover, we may be required to expend resources to develop products and technology internally, we may be atincur significant expenses whether or not a competitive disadvantage or we may be adversely affected by negative market perceptions, any of which may have a material adverse effect on our revenue, gross margin and profitability. Integration issues are complex, time-consuming and expensive and, without proper planning and implementation, could significantly disrupt our business. The challenges involved in integration include:contemplated extraordinary transaction is ultimately consummated.

Combining product offerings and entering into new marketsAdditionally, in whichconnection with any extraordinary transaction we are not experienced;

Convincing customers and distributors that the transaction will not diminish client service standards or business focus, preventing customers and distributors from deferring purchasing decisions or switching to other suppliers (which could result in our incurring additional obligations in order to address customer uncertainty), and coordinating sales, marketing and distribution efforts;

Minimizing the diversion of management attention from ongoing business concerns;

Persuading employees that business cultures are compatible, maintaining employee morale and retaining key employees, engaging with employee works councils representing an acquired company's non-U.S. employees, integrating employees into the Company, correctly estimating employee benefit costs and implementing restructuring programs;

Coordinating and combining administrative, manufacturing, and other operations, subsidiaries, facilities and relationships with third parties in accordance with local laws and other obligations while maintaining adequate standards, controls and procedures;

Achieving savings from supply chain integration; and

Managing integration issues shortly after or pending the completion of other independent transactions.

We periodically evaluate and enter into significant extraordinary transactions on an ongoing basis. We mayconsummate, we many not fully realize all of the anticipated benefits of any extraordinary transaction, and the timeframe for achieving benefits of an extraordinary transaction may depend partially upon the actions of employees, suppliers or other third parties. In addition, the pricingsynergies and other terms ofbenefits we expect to achieve (on our contracts for extraordinary transactions require us to make estimatesexpected timeframe, or at all), and assumptions at the time we enter into these contracts, and, during the course of our due diligence, we may incur unanticipated expenses, write-downs, impairment charges or unforeseen liabilities that could negatively affect our business, financial condition and results of operations, disrupt relationships with current and new employees, customers and vendors, incur significant debt or have to delay or not identify all of the factors necessary to estimate our costs accurately. Any increased or unexpected costs, unanticipated delays or failure to achieve contractual obligations could make these agreements less profitable or unprofitable. Managingproceed with announced transactions. Further, managing extraordinary transactions requires varying levels of management and employee resources, which may divert our attention from other business operations. These extraordinary transactions also have resulted

The adoption of climate change legislation or regulation could result in increased operating costs and reduced demand for our products.
The nature of our operations could make us subject to legislation or regulations affecting the emission of greenhouse gases. The U.S. Environmental Protection Agency has promulgated (and may in the future promulgate) regulations applicable to projects involving greenhouse gas emissions above a certain threshold, and the U.S. and certain states within the U.S. have enacted, or are considering, limitations on greenhouse gas emissions. Jurisdictions outside the U.S. are also addressing greenhouse gases by legislation or regulation. In addition, efforts have been made and continue to be made at the international level toward the adoption of international treaties or protocols that would address global greenhouse gas emissions. These limitations may result in significantinclude the adoption of cap and trade regimes, carbon taxes, restrictive permitting, increased efficiency standards and incentives or mandates for renewable energy. Any such requirements could make our products more expensive, lengthen project implementation times and reduce demand for hydrocarbons, as well as shift hydrocarbon demand toward relatively lower-carbon sources. Such legislation, regulation, treaties or protocols may also increase our compliance costs, and expenses and charges to earnings. Moreover, we have incurred and will incur additional depreciation and amortization expense over the useful livessuch as for monitoring or sequestering emissions.

Adverse results of certain assets acquired in connection with extraordinary transactions, and, to the extent that the value of goodwill or intangible assets with indefinite lives acquired in connection with an extraordinary transaction becomes impaired, we may be required to incur additional material charges relating to the impairment of those assets. In order to complete an acquisition, we may issue common stock, potentially creating dilution for existing stockholders, or borrow, affecting our financial condition and potentially our credit ratings. Any prior or future downgrades in our credit rating associated with an acquisitionlegal proceedings could materially adversely affect our ability to borrow and result in more restrictive borrowing terms. In addition, our effective tax rate on an ongoing basis is uncertain, and extraordinary transactions could impact our effective tax rate. We also may experience risks relating to the challenges and costs of closing an extraordinary transaction and the risk that an announced extraordinary transaction may not close. As a result, any completed, pending or future transactions may contribute to financial results that differ from the investment community's expectations in a given quarter.

Guaranteeing performance by others

From time to time, we may be required or determine it is advisable to guarantee performance of loan agreements by others in which we maintain a financial interest. In such instances, if the primary obligor is unable to perform its obligations, we might be forced to perform the primary obligor's obligations which could negatively impact our financial interests.

International market challenges

Although we do not have production operations and assets outside of the US, we do have a global portfolio of customers and thus we are subject to a variety of international market risks including, but not limited to, credit risk and financial conditions of local customers and distributors; potential difficulties in protecting intellectual property; new and different legal and regulatory requirements in local jurisdictions and civil unrest in response to local political conditions.

Additional tax liabilitiesus.

We are subject to income taxes and state taxesmay in the United States.  Significant judgment is required in determining our provision for income taxes. In the ordinary course of our business, there are many transactions and calculations where the ultimate tax determination is uncertain. Although we believe our tax estimates are reasonable, the final determination of tax audits and any related litigation couldfuture be materially different to that which is reflected in our consolidated financial
statements. Should any tax authority take issue with our estimates, our results of operations, financial position, and cash flows could be adversely affected.

Public Law No. 115-97 known as the U.S. Tax Cuts and Jobs Act ("TCJA") was enacted on December 22, 2017, and introduces significant changes to U.S. income tax law.  Accounting Standards Codification 740, Accounting for Income Taxes, requires companies to recognize the effects of tax law changes in the period of enactment. Effective in 2018, the TCJA made a number changes, such as reducing the U.S. statutory tax rate from 35.0% to 21.0%, creating new taxes on certain foreign sourced earnings and certain related-party payments, which are referred to as the global intangible low taxed income tax and the base erosion tax, respectively, establishing a dividends received deduction for dividends paid by foreign subsidiaries to the U.S., the elimination or limitation of certain deductions, and imposing a mandatory tax on previously unrepatriated earnings accumulated offshore.  Due to the timing of the new tax law provided in the TCJA and the substantial changes it brings, the Staff of the Securities and Exchange Commission issued Staff Accounting Bulletin No. 118, which provides registrants with a measurement period to report the impact of the new US tax law. As a result, the recorded and estimated impacts of the TCJA may change in future periods, which may adversely affect our estimates, our results of operations, financial position and cash flows.

Risk associated with activist shareholders

While we seek to actively engage with our shareholders and consider their views on business and strategy, we could be subject to actions or proposals from our shareholders that do not align with our business strategies or the interests of our other shareholders. Responding to these shareholders could be costly and time-consuming, disrupt our business and operations, and divert the attention of our senior management. Furthermore, uncertainties associated with such activities could negatively impact our ability to execute our strategic plan, retain customer and skilled personnel and affect long-term growth. In addition, such activities may cause our stock price to fluctuate based on temporary or speculative market perceptions that do not necessarily reflect our business operations.

Economic and political instability; terrorist acts; war and other political unrest

The conflict and hostilities in Yemen could disrupt or interfere with the operations of AMAK whose corporate offices and mining assets are located in Najran province of Saudi Arabia.  In addition, the potential for additional future terrorist acts and other recent events, including ISIS terrorist related activities and civil unrest in the Middle East, have caused uncertainty in the world's financial markets and have significantly increased global political, economic and social instability, including in Saudi Arabia, a country in which we have a substantial investment.  It is possible that further acts of terrorism may be directed against the United States domestically or abroad, and such acts of terrorism could be directed against our investment in those locations.  Such economic and political uncertainties may materially and adversely affect our business, financial condition or results of operations in ways that cannot be predicted at this time.  Although it is impossible to predict the occurrences or consequences of any such events, they could result in a decrease in demand for our products, make it difficult or impossible to deliver products to our customers or to receive components from our suppliers, create delays and inefficiencies in our supply chain and result in the need to impose employee travel restrictions. We are predominantly uninsured for losses and interruptions caused by terrorist acts, conflicts and wars. Our future revenue, gross margin, expenses and financial condition also could suffer due to a variety of international factors, including:legal proceedings and claims that arise out of the ordinary conduct of our business, including legal proceedings brought in non-U.S. jurisdictions. Results of legal proceedings cannot be predicted with certainty. Irrespective of its merits, litigation may be both lengthy and disruptive to our operations and may cause significant expenditure and diversion of management attention. We may be faced with significant monetary damages or injunctive relief against us that could have an adverse impact on our business and results of operations should we fail to prevail in certain matters.

•     Ongoing instabilityCost pressures could negatively impact AMAK's operating margins and expansion plans.

Cost pressures may continue to occur across the resources industry. As the prices for AMAK's products are determined by the global commodity markets in which it operates, AMAK does not generally have the ability to offset these cost pressures through corresponding price increases, which can adversely affect its operating margins or require changes in a country's or region's economic or political conditions,operations, including, inflation, recession, interest rate fluctuations and actual or anticipated military or political conflicts;

•     Longer accounts receivable cycles and financial instability among customers;

•     Trade regulations and procedures and actions affecting production, pricing and marketing of products;

•     Local labor conditions and regulations;

•     Geographically dispersed workforce;

•     Changes in the regulatory or legal environment;

•     Differing technology standards or customer requirements;

•     Import, export or other business licensing requirements or requirements relatingbut not limited to, making foreign direct investments, which could affect our abilitytemporary planned shutdowns. Notwithstanding AMAK's efforts to obtain favorable terms for labor and raw materials or lead to penalties or restrictions;

•     Difficulties associated with repatriating cash generated or held abroad in a tax-efficient manner and changes in tax laws; and

•     Fluctuations in freightreduce costs, and disruptions ina number of key cost inputs being commodity price-linked, the transportation and shipping infrastructure at important geographic points of exit and entry for our products and shipments.

Business disruption

Business disruptions could harm our future revenue and financial condition and increase ourinability to reduce costs and expenses. Our operations could be subject to earthquakes, power shortages, telecommunications failures, water shortages, tsunamis, floods, hurricanes, typhoons, fires, extreme weather conditions, medical epidemics and other natural or manmade disasters or business interruptions,a timing lag may adversely impact AMAK's operating margins for some of which we may be self-insured. The occurrence of any of these business disruptions could harm our revenue and financial condition and increase our costs and expenses.

Excess products

An important component of our competitive performance is our ability to minimize the production of low margin products on an on-going basis.  Although the hydrocarbon constituents comprising the petrochemical feedstock we use may vary somewhat over time, they tend to fall into relatively narrow percentage bands as compared to overall feedstock composition.  By nature of the fractionation process that we utilize, if we make one product, we make them all; therefore, when we receive a significant order for a particular finished product, additional products may be manufactured necessitating sales into secondary, lower margin markets.  We continue to investigate options to maintain or improve margins.  We are in the process of constructing an advanced reformer unit with a capacity of 4,000 barrels per day which will allow us to upgrade the value of our byproducts in order to maximize margins.  The unit is expected to start up during the third quarter of 2018.extended period.

An impairment of goodwill could negatively impact our financial results of operations.

At least annually, we assess goodwill for impairment. If an initial qualitative assessment identifies that it is more likely than not that the carrying value of a reporting unit exceeds its estimated fair value, additional quantitative testing is performed. We may also elect to skip the qualitative testing and proceed directly to quantitative testing. If the quantitative testing indicates that goodwill is impaired, the carrying value of goodwill is written down to fair value with a charge against earnings. Since we utilize a discounted cash flow methodology to calculate the fair value of our operating units, continued weak demand for a specific product line or business could result in an impairment charge. Accordingly, any determination requiring the write-off of a significant portion of goodwill could negatively impact our results of operations.

DependenceOur variable rate indebtedness subjects us to interest rate risk, which could cause our debt service obligations to increase significantly.

Borrowings under the Credit Facilities are, and additional borrowings in the future may be, at variable rates of interest that expose us to interest rate risk. If interest rates increase, our debt service obligations on AMAK managementthe variable rate indebtedness will increase even though the amount borrowed will remain the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. We may in the future enter into, interest rate swaps for our variable rate debt whereby we exchange floating for fixed rate interest payments in order to reduce exposure to interest rate volatility. However, any interest rate swaps into which we enter may not fully mitigate our interest rate risk.

We rely upon AMAK's managementare exposed to local business risks in different countries, which could have a material adverse effect on our financial condition and Board to employ various respected engineering and financial advisors to assist in the development and evaluationresults of the mining projects in Saudi Arabia.  Notwithstanding the utilization of any outside consultants, our risk will continue to and will ultimately depend upon AMAK's ability to use consultants and experienced personnel to manage the operation in Saudi Arabia.

Inability to control AMAK activitiesoperations.

Although we believe thatdo not have production operations and assets outside of the U.S., we do have significant influence overa global portfolio of customers and thus we are subject to a variety of international market risks including, but not limited to:

ongoing instability or changes in a country's or region's economic or political conditions, including inflation, recession, interest rate fluctuations, civil unrest and actual or anticipated military or political conflicts (including the operatingpotential impact of continued hostilities and conflict in Yemen on the operations of AMAK);
longer accounts receivable cycles and financial policiesinstability or credit risk among customers and distributors;
trade regulations and procedures and actions affecting production, pricing and marketing of AMAK, we do not control AMAK's activities.  The extentproducts, including domestic and foreign customs and tariffs or other trade barriers;
regulations favoring local contractors or requiring foreign contractors to which we are able to influence specific operating and financial decisions depends on our ability to persuade other AMAK board members and management regarding these policies.  Our ability to persuade them may be adversely affected by cultural differences, differing accounting and management practices, differing governmental lawsemploy citizens of, or purchase supplies from, a local jurisdiction;
local labor conditions and regulations and the factgeographical dispersion of the workforce;
changes in the regulatory or legal environment;
differing technology standards or customer requirements;
import, export or other business licensing requirements or requirements relating to making foreign direct investments, which could affect our ability to obtain favorable terms for labor and raw materials or lead to penalties or restrictions;
data privacy regulations;
risk of non-compliance with the U.S. Foreign Corrupt Practices Act or similar anti-bribery legislation in other countries by agents or other third-party representatives;

risk of nationalization of private enterprises by foreign governments (including the risk that AMAK's mining and exploration leases may be terminated by the AMAK mining project is halfway aroundSaudi Ministry of Petroleum and Minerals);
foreign currency exchange restrictions and fluctuations;
difficulties associated with repatriating cash generated or held abroad in a tax-efficient manner and changes in tax laws; and
fluctuations in freight costs and disruptions in the world fromtransportation and shipping infrastructure at important geographic points of exit and entry for our main baseproducts and shipments.

Such economic and political uncertainties may materially and adversely affect our business, financial condition or results of operations in ways that cannot be predicted at this time. Although it is impossible to predict the United States.occurrences or consequences of any such events, they could result in a decrease in demand for our products, make it difficult or impossible to deliver products to our customers or to receive raw materials from our suppliers and create delays and inefficiencies in our supply chain. We are also predominantly uninsured for losses and interruptions caused by terrorist acts, conflicts and wars.

Further,We may have additional tax liabilities, which may adversely affect our financial position.

We are subject to income taxes and state taxes in the U.S. Significant judgment is required in determining our provision for income taxes. In the ordinary course of our business, there are many transactions and calculations where the ultimate tax determination is uncertain. Although we believe our tax estimates are reasonable, the final determination of tax audits and any related litigation could be materially different to that which is reflected in our consolidated financial statements. Should any tax authority take issue with our estimates, our results of operations, financial position and cash flows could be adversely affected.

The U.S. Tax Cuts and Jobs Act ("TCJA") was enacted on December 22, 2017, and introduces significant changes to U.S. income tax law. Accounting Standards Codification 740, Accounting for Income Taxes, requires companies to recognize the effects of tax law changes in the period of enactment. Effective in 2018, the TCJA made a number changes, such as described above under "Item 1: Business"reducing the U.S. statutory tax rate from 35% to 21%, creating new taxes on certain foreign sourced earnings and certain related-party payments, which are referred to as the global intangible low taxed income tax and the base erosion tax, respectively, establishing a dividends received deduction for dividends paid by foreign subsidiaries to the U.S., the Company was requiredelimination or limitation of certain deductions, and imposing a mandatory tax on previously unrepatriated earnings accumulated offshore. Due to executethe timing of the new tax law provided in the TCJA and deliverthe substantial changes it brings, the Staff of the SEC issued Staff Accounting Bulletin No. 118, which provides registrants with a measurement period to report the impact of the new US tax law. As a result, the recorded and estimated impacts of the TCJA may change in future periods, which may adversely affect our estimates, our results of operations, financial position and cash flows.

AMAK is also subject to various taxes in Saudi Arabia. While AMAK currently benefits from certain tax credits that reduce its overall tax liability, there can be no assurance that relevant tax authorities will continue to maintain such credits. In addition, there can be no assurances that future changes in tax law in Saudi Arabia will not result in increased tax liability to AMAK. A material increase in tax liability could have an adverse effect on AMAK's results of operations and financial condition, which may in turn have an adverse effect on our investment in AMAK.

We from time to time are subject to contingent liabilities. If any contingent liabilities become actual liabilities, our financial condition may be adversely affected.

We are subject to various contingent liabilities that may affect our liquidity and our ability to meet our obligations, including our limited corporate guarantee to SIDF in connection with AMAK's Loan from SIDF to fund mining operations. If AMAKTo the extent any of our current or future contingent liabilities become actual liabilities, it may have an adverse effect on our financial condition.

were to default on its payment obligations under the Loan, the CompanyWe may be requiredunable to make payments to SIDF under the limited corporate guarantee.

Inability to recouprecover our investment in AMAK, which could adversely affect our results of operations and financial condition.

We will only recover our investment in AMAK through the receipt of dividendsdistributions or future share repurchases from AMAK or the sale of part or all of our interest in AMAK. There is a risk that we willIf AMAK does not continue to be unableprofitable, our ability to recover our investment in AMAKwill be adversely affected. Moreover, if AMAK continues to be profitable, there can be no assurance that the board of directors of AMAK will determine that it is not profitable,in the best interests of AMAK and its shareholders to make distributions to its shareholders or if AMAK's Board of Directors chooses not to declare dividends even ifinitiate additional share repurchases. In addition, we understand that AMAK is profitable.  With respectrequired to the sale of part or all of our interest in AMAK, under Saudi Arabian law, AMAK must sell a portion of its equity to the public once AMAK has been profitable for two years. While the proceeds of such a sale might allow us to recover our investment in AMAK, there is no assurance that AMAK will achieve the profitability required for such a public sale, or that the market conditions for any such public sale will be favorable enough to allow us to recover our investment.

AMAK's inability to provide timely financial information

Ininvestment or that some or all of our shares in AMAK will be include in any such sale. To the event that AMAK isextent we are unable to provide timely, accuraterecover our investments in AMAK, our results of operations and financial information to us, our ability to file reports with the Securities and Exchange Commission within required deadlines couldcondition may be affected and our standing on the New York Stock Exchange and in the investment community could suffer.adversely affected.

Cancellation of the current mining leases held by AMAK

In the event that the Saudi Ministry of Petroleum and Minerals cancels the current leases, AMAK shareholders including us could lose their investment or be forced to sell for a loss.

AMAK could suffer sustained operational difficulties

Operating difficulties are many and various, ranging from unexpected geological variations that could result in significant ground or containment failure to breakdown of key capital equipment.  Reliable roads, rail networks, ports, power generation and transmission, and water supplies are required to access and conduct AMAK's operations.  AMAK transports all of its products first by truck and then by sea.  Limitations or interruptions in transport infrastructure could impede its ability to deliver products.  Although going forward, operations will be owner-managed, availability of sufficiently skilled operators, engineers, geologists and maintenance technicians in Saudi Arabia can from time to time be severely limited.

AMAK may have fewer mineral reserves than its estimates indicateindicate.

AMAK's reserves estimations may change substantially if new information subsequently becomes available.  Fluctuations in the price of commodities, variation in production costs or different recovery rates may ultimatelycould result in AMAK's estimated reserves being revised.revised in the future. If such a revision were to indicate a substantial reduction in proven or probable reserves at one or more of AMAK's projects, it could negativelyadversely affect our investment in AMAK.

Cost pressures could negativelyDomestic or international terrorist attacks may disrupt our operations or otherwise have an adverse impact AMAK's operating margins and expansion planson our business.

Cost pressuresIt is possible that further acts of terrorism may continuebe directed against the U.S. domestically or abroad, and such acts of terrorism could be directed against our investment in those locations. Moreover, chemical related assets, and U.S. corporations such as ours, may be at a greater risk of future terrorist attacks than other possible targets. The resulting damage from such an event could include loss of life, property damage or site closure. Any, or a combination, of these factors could adversely impact our results of operations, financial position and cash flows.

Increased information systems security threats and more sophisticated and targeted computer crime could pose a risk to occur acrossour systems, networks, products and services.

Increased information systems security threats and more sophisticated, targeted computer crime pose a risk to the resources industry. Assecurity of our systems and networks and the prices for AMAK's products are determinedconfidentiality, availability, and integrity of our data, operations, and communications. While we attempt to mitigate these risks by the global commodity markets in which it operates, AMAK does not generally have the ability to offset these cost pressures through corresponding price increases, which can adversely affect its operating margins or require changes in operations, including, but not limited to, temporary planned shutdowns. Notwithstanding AMAK's efforts to reduce costs andemploying a number of key cost inputs being commodity price-linked, the inabilitymeasures, including security measures, employee training, comprehensive monitoring of our networks and systems, and maintenance of backup and protective systems, if these measures prove inadequate, we could be adversely affected by, among other things, loss or damage of intellectual property, proprietary and confidential information, and communications or customer data, having our business operations interrupted and increased costs to reduce costsprevent, respond to, or mitigate these cyber security threats. Any significant disruption or slowdown of our systems could cause customers to cancel orders or standard business processes to become inefficient or ineffective, which could adversely affect our results of operations, financial position and a timing lagcash flows.

Implementation of changes to our enterprise resource planning ("ERP") system may adversely impact AMAK's operating margins for an extended period.affect our business and results of operations or the effectiveness of internal controls over financial reporting.

During 2017, we implemented a new ERP system at our specialty petrochemical facility in order to better manage our business, and we continue to implement additional improvements to the system. ERP implementations are complex and time-consuming projects that involve substantial expenditures on system software and implementation activities over a significant period of time. If we do not effectively implement changes to ERP system, or if the system does not operate as intended, it could adversely affect our financial reporting systems and our ability to produce financial reports, the effectiveness of internal controls over financial reporting (including our disclosure controls and procedures), and our business and results of operations.

Item 1B.   Unresolved Staff Comments.

NoneNone.



Item 2. Properties.

United States Specialty Petrochemical Facility

SHR owns and operates a specialty petrochemical facility near Silsbee, Texas which is approximately 30 miles north of Beaumont, Texas, and 90 miles east of Houston. The facility consists of eight operating units which, while interconnected, make distinct products through differingdifferent processes: (i) a Penhex Unit; (ii) a Reformer; (iii) a Cyclo-pentane Unit; (iv) an Aromax® Unit;Advanced Reformer unit; (v) an Aromatics Hydrogenation Unit; (vi) a White Oil Fractionation Unit; (vii) a Hydrocarbon Processing Demonstration Unit, and (viii) a P-Xylene Unit. All of these units are currently in operation. AOur new 40004,000 barrel per day Aromax®Advanced Reformer unit is under construction and is expected to start-upsuccessfully re-started in third quarterDecember 2018. This unit will provide security of hydrogen supply for Penhex and custom processing projects as well as increasingincrease the value of our by-products.

GSPL owns and operates three (3) 8-inch diameter pipelines and five (5) 4-inch diameter pipelines aggregating approximately 70 miles in length connecting SHR's facility to:to (1) a natural gas line, (2) SHR's truck and rail loading terminal and (3) a major petroleum products pipeline system owned by an unaffiliated third party. All pipelines are operated within Texas Railroad Commission and DOT regulations for maintenance and integrity.

United States Specialty Polyethylene Wax Facility

TC owns and operates a specialty synthetic wax facility from its 27.5 acre plant site located in Pasadena, Texas. After the recent acquisition of the adjacent BASF facility ("B Plant") in 2016 the plant now contains several stainless steel reactors ranging in size from 3,300 to 16,000 gallons with overhead condensing systems, two 4,000 gallon glass line reactors;reactors, five (5) Sandvik forming belts with pastillating capabilities, five high vacuum wiped film evaporators varying in size from 12 to 20 m2, steel batch column with 10,000 gallon still pot and 20 theoretical stages of structured packing. This plant also now has the ability to crystallize and recover solids from the crystallization process.  There are also three (3) fully equipped laboratories onsite. With a base product offering of polyethylene waxes, TC is well suited to manage high molecular weight materials that must be managed in the molten state. In 2017, TC expanded its processing capabilities with the start-up of the hydrogenation/distillation unit. This $25 million investment provides TC's customers with state-of-the-art distillation and high-pressure hydrogenation capabilities. During 2018, TC experienced issues with the reliable operation of this unit in accordance with its design specifications. Efforts are underway to implement design corrections and fixes to improve the unit's capability and reliability. TC offers pastillating for waxes, polymers and resins, flaking capabilities, as well as solids packaging servicesservices..

Investment in AMAK

As of December 31, 2017,2018, we owned a 33% interest in AMAK.

Prior to December 2008, we held a thirty (30) year mining lease (which commenced on May 22, 1993) covering an approximate 44 square kilometer area in Najran Province in southwestern Saudi Arabia. The lease carried an option to renew or extend the term of the lease for additional periods not to exceed twenty (20) years. The lease and other related assets located in Saudi Arabia were contributed to AMAK in December 2008. The above-ground ore processing facility became fully operational during the second half of 2012.   Late in the fourth quarter of 2015 AMAK temporarily closed the operation to preserve the assets in the ground while initiating steps to improve efficiencies and optimize operations. The facility resumed operation in the fourth quarter of 2016 and operating rates, metal recoveries and concentrate quality improvedcontinued to improve steadily throughout 2017.

2017 and 2018.
AMAK shipped approximately 58,000, 28,000, 16,000, and 51,000 metric tons of copper and zinc concentrate to outside smelters during 2018, 2017 2016 and 2015,2016, respectively. In 2014 AMAK initiated operation of its precious metal recovery circuit at the mill and produced gold and silver doré intermittently through 2014 and 2015. The precious metals circuit was recommissioned in fourth quarter of 2017 and is expected to produceproduced commercial quantities of gold and silver bearing doré in 2018.

The facility includes an underground mine, ore-treatment plant and related infrastructures. The ore-treatment plant is comprised of primary crushing, ore storage, SAG milling and pebble crushing, secondary ball milling, pre-flotation, copper and zinc flotation, concentrate thickening, tailings filtration, cyanide leaching, reagent handling, tailings dam and utilities. Related infrastructure includes a 300 men capacity camp for single status accommodation for expatriates and Saudi employees, an on-site medical facility, a service building for 300 employees, on-site diesel generation of 10 megawatts, potable water supply, sewage treatment plant and an assay laboratory. The facilities at the Port of Jazan are comprised of unloading facilities, concentrate storage and reclamation and ship loading facilities.

Metal price assumptions follow U. S. Securities and Exchange CommissionSEC guidance not to exceed a three year trailing average. The following chart illustrates the change in metal prices from the previous three year average to current levels:

  Average Price  Spot Price as of  Percentage 
  For 2015-2017  12/31/17  Increase (Decrease) 
Gold per ounce $1,222.06  $1,296.50   6.09%
Silver per ounce $16.62  $16.87   1.50%
Copper per pound $2.50  $3.25   30.00%
Zinc per pound $1.05  $1.50   42.86%
 
Average Price
For 2016-2018

 
Spot Price as of
12/31/18

 
Percentage
Increase (Decrease)

Gold per ounce$1,258.20
 $1,279.00
 (1.65)%
Silver per ounce$16.62
 $15.47
 6.95 %
Copper per pound$2.93
 $2.98
 (5.78)%
Zinc per pound$1.32
 $1.25
 4.82 %

Three mineralized zones, the Saadah, Al Houra and Moyeath, were outlined by initial diamond drilling. Based on the original 1994 WGM feasibility study as updated in 1996, 2005 and 2009 the following tables set forth a summary of the diluted recoverable, proven and probable mineralized materials of AMAK in the Al Masane area along with the estimated average grades of these mineralized materials as adjusted to reflect production that began in July 2012:

Zone 
Proven Reserves
(Mtonnes)
  
Copper
(%)
  
Zinc
(%)
  
Gold
(g/t)
  
Silver
(g/t)
 
Saadah  0.45   1.5   3.7   0.8   21.0 
Al Houra  0.03   0.8   3.8   0.7   21.0 
Moyeath  -   -   -   -   - 
Total  0.48   1.4   3.7   .8   21.0 
                     
Zone 
Probable Reserves
(Mtonnes)
  
Copper
(%)
  
Zinc
(%)
  
Gold
(g/t)
  
Silver
(g/t)
 
Saadah  5.19   1.2   3.4   0.8   23.0 
Al Houra  1.90   0.9   3.8   1.2   39.0 
Moyeath  0.70   0.8   7.2   1.0   55.0 
Total  7.79   1.1   3.9   0.9   29.0 
                     
Total proven and probable reserves  8.27                 
Less production through December 31, 2017  2.67                 
Remaining proven and probable reserves  5.60                 

Zone
Proven Reserves
(Mtonnes)

 
Copper
(%)

 
Zinc
(%)

 
Gold
 (g/t)

 
Silver
 (g/t)

Saadah0.45
 1.5
 3.7
 0.8
 21.0
Al Houra0.03
 0.8
 3.8
 0.7
 21.0
Moyeath
 
 
 
 
Total0.48
 1.4
 3.7
 0.8
 21.0
          
Zone
Probable Reserves
(Mtonnes)

 
Copper
(%)

 
Zinc
(%)

 
Gold
 (g/t)

 
Silver
 (g/t)

Saadah5.19
 1.2
 3.4
 0.8
 23.0
Al Houra1.90
 0.9
 3.8
 1.2
 39.0
Moyeath0.70
 0.8
 7.2
 1.0
 55.0
Total7.79
 1.1
 3.9
 0.9
 29.0
          
Total proven and probable reserves8.27
        
Less production through December 31, 20183.37
        
Remaining proven and probable reserves4.90
        
For purposes of calculating proven and probable mineralized materials, a dilution of 5% at zero grade on the Saadah zone and 15% at zero grade on the Al Houra and Moyeath zones was assumed. A mining recovery of 80% was used for the Saadah zone and 88% for the Al Houra and Moyeath zones. Mining dilution is the amount of wall-rock adjacent to the ore body that is included in the ore extraction process. Base case cutoffs used were 5.0% zinc equivalent. Ore reserves were estimated using metal prices of USD $0.85 per pound for zinc, $2.50 per pound for copper, $800 per ounce for gold and $12.0 per ounce for silver.

Our rights to obtain additional mining licenses to other adjoining areas were also transferred to AMAK in December 2008 as part of our initial capital contribution. AMAK received formal approval in November 2015 of an additional 151 square kilometerskm2 or 37,313 acres of territory relatively close to the current mine. The new territory comprises the Guyan and Qatan exploration licenses covering 151 square kilometerskm2 and within the Guyan exploration license, a 10 square kilometerskm2 or 2,471 acre mining lease which has potential for significant gold recovery. Some exploration holes were drilled in both Guyan and Qatan up to 40 years ago, but no reserves were attributed to these areas. Exploration activities were restarted in both of these areas during 2016, and SRK Consulting prepared a JORC compliant report in May 2017 showing approximately 99,000 ounces at the Jebel Guyan zone excluding other nearby prospects. The diamond drilling program continues at both the Jebel Guyan and Al Aqiq zones, testing depth and extension of mineralization with confirmed mineralization intersected at an additional 50 meters depth the Guyan zone. A JORC compliant reserve update is currently being studied by Mining One (Australia).




Historic three-year average commodity prices are shown in the following table:

 Average Price in USD Average Price in USD
  2013-2015   2014-2016   2015-2017 2014-2016
 2015-2017
 2016-2018
Gold per ounce $1,278.98  $1,224.96  $1,222.06 $1,224.96
 $1,222.06
 $1,258.20
Silver per ounce $19.53  $17.29  $16.62 $17.29
 $16.62
 $16.62
Copper per pound $2.98  $2.60  $2.50 $2.60
 $2.50
 $2.93
Zinc per pound $0.91  $0.94  $1.05 $0.94
 $1.05
 $1.32
Proven mineralized materials are those mineral deposits for which quantity is computed from dimensions revealed in outcrops, trenches, workings or drill holes, and grade is computed from results of detailed sampling. For ore deposits to be proven, the sites for inspection, sampling and measurement must be spaced so closely and the geologic character must be so well defined that the size, shape, depth and mineral content of reserves are well established. Probable mineralized materials are those for which quantity and grade are computed from information similar to that used for proven mineralized materials, but the sites for inspection, sampling

and measurement are farther apart or are otherwise less adequately spaced. However, the degree of assurance, although lower than that for proven mineralized materials, must be high enough to assume continuity between points of observation.

The metallurgical studies conducted on the ore samples taken from the zones indicated that 84.7% of the copper and 78.0% of the zinc could be recovered in copper and zinc concentrates. Overall, gold and silver recovery from the ore was estimated to be 77.3% and 81.3%, respectively, partly into copper concentrate and partly as bullion through cyanide processing of zinc concentrates and mine tailings. Further studies recommended by consultants may improve those recoveries and thus the potential profitability of the project; however, there can be no assurances of this effect.

AMAK contracted with SRK Consulting for a reserves update in 2017 and SRK reported JORC compliant reserves in August 2017. The SRK reserves estimate has since been updated by AMAK resource geologist (Qualified Person - QP as defined in JORC Code) in January 2018 and February 2019 with additional drill-hole data (85 holes and 8,970 meters)meters in 2017 and 91 holes and 9,134 meters in 2018) and more comprehensive geological information from actual mining fronts. AMAK's JORC Compliant Reserves (January 2018)2019) are given below:

Ore Reserves (Probable+Proven)
Zone
 
(Tonnes)
(Mtonnes)
  
Copper
(%)
  
Zinc
(%)
  
Gold
(g/t)
  
Silver
(g/t)
 
Saadah  2.5   1.14   3.31   0.81   24.10 
Al Houra  3.3   0.93   3.59   0.94   31.65 
Moyeath  -   -   -   -   - 
Total  5.8   1.01   3.47   0.88   28.35 

Ore Reserves (Probable+Proven)
Zone
(Tonnes)
(Mtonnes)

 
Copper
(%)

 
Zinc
(%)

 
Gold
 (g/t)

 
Silver
 (g/t)

Saadah2.8
 0.98
 3.39
 0.74
 25.43
Al Houra2.8
 0.83
 3.34
 0.90
 26.40
Moyeath0.80
 0.77
 6.53
 0.61
 41.61
Total6.4
 0.89
 3.78
 0.79
 27.87
Ore reserves were estimated using metal prices of USD $1.25$1.11 per pound for zinc, $2.50 per pound for copper, $1200$1,200 per ounce for gold and $16.50$15.00 per ounce for silver.

Mineable (recoverable) reserves include:
·21%20% sidewall dilution in the stope production
·0.13Mt0.07Mt surface stockpiles

Mineable (recoverable) reserves exclude:
·Mining of any mineralization less than mineable width of 1.0m
·Sill Pillar (which was previously included). Technically, it is not mineable with current underground infrastructure and backfilling practices, so this pillar (0.6Mt) excluded from Reserves
·All of the Moyeath orebody since it is categorized as Inferred
·Any low grade (CuEq<1.01%) material (0.4Mt) which has to mined out and stored separately
.
The updated reserves reflect a major1.5M tonnes increase to the MRE of August 2017. This increase is attributableJanuary 2018, due to a more realistic COG (cut-off grade)additional drilling at Moyeath and additional geological data gathered since August 2017.Saadah orebodies. The updated MRE (January 2018) also isdepth of three orebodies are not tested yet and underground drilling will continue in line with2019 and coming years to extend the WGM (2009) Mineral Resources Estimate.

18

orebody at depth.
Access and all mine services already exist at the Moyeath orebody and AMAK recently started core drilling here.ore mining in the last quarter of 2018. In 2019, AMAK estimates that approximately 50,000 tonnes will be mined out from Moyeath orebody. A drilling program of 8,000 meters (8 months) has been completed at Moyeath. Mine designMoyeath, which upgraded 0.8M tonnes of inferred class to indicated class, which eventually mine designed and other modifying factors are planned to convertincluded in the life of mine schedule. AMAK believes that the Moyeath orebody into Probable Reserves (mineable). Together with upgrading other orebodies (Saadahis high grade for zinc and Al Houra), the mine life could easily extend to +12 years.average grade as a copper. AMAK believes that Moyeath is the most attractive opportunity for an extended life and higher zinc metal recovery through the life of mine.

The metallurgical recoveries are assumed as 83% for copper and 72%75% for zinc after 2019. BothActual metal recoveries in 2018 increased throughout the year so that these recovery assumptions are onrealistic and in line with actual performance of the conservative side given that historical recoveries were around 84% for copper and 76% for zinc. Currently a more sophisticated reagent suite is being tested at the plant to increase the recoveries another 1-2 % for both copper and zinc circuits: however, there can be no assurances of this effect.process plant.

The following table sets forth tonnage mined historically with average assay values per year:

Year
 Mine Head Grade  Mill Throughput 
  %Cu  %Zn  dmt 
2011  1.26   3.02   9,460 
2012  1.18   3.39   399,892 
2013  1.48   3.19   699,316 
2014  1.22   3.15   670,812 
2015  1.11   3.69   591,419 
2016  -   -   - 
2017  1.10   3.22   385,495 

YearMine Head Grade Mill Throughput
 %Cu
 %Zn
 dmt
20111.26
 3.02
 9,460
20121.18
 3.39
 399,892
20131.48
 3.19
 699,316
20141.22
 3.15
 670,812
20151.11
 3.69
 591,419
2016
 
 
20171.10
 3.22
 385,495
20181.10
 3.27
 699,885
The following table sets forth tonnage milled with average assay values and metallurgical recoveries per year:

Year
 Copper Concentrate  Zinc Concentrate 
  dmt  %Cu  %Zn  Recovery  dmt  %Zn  %Cu  Recovery 
2011  443   16.51   7.51   61.64   377   40.69   3.56   53.64 
2012  15,944   23.91   5.46   80.62   20,738   50.03   1.16   76.54 
2013  35,140   25.20   4.73   85.68   33,460   49.82   0.83   74.62 
2014  28,476   24.20   4.31   84.24   31,600   51.02   0.70   76.26 
2015  24,218   22.70   5.13   84.12   35,447   48.46   0.62   78.63 
2016  -   -   -   -   -   -   -   - 
2017  15,492   19.10   6.20   72.80   16,544   47.20   1.10   63.40 

YearCopper Concentrate Zinc Concentrate
 dmt
 %Cu
 %Zn
 Recovery
 dmt
 %Zn
 %Cu
 Recovery
2011443
 16.51
 7.51
 61.64
 377
 40.69
 3.56
 53.64
201215,944
 23.91
 5.46
 80.62
 20,738
 50.03
 1.16
 76.54
201335,140
 25.20
 4.73
 85.68
 33,460
 49.82
 0.83
 74.62
201428,476
 24.20
 4.31
 84.24
 31,600
 51.02
 0.70
 76.26
201524,218
 22.70
 5.13
 84.12
 35,447
 48.46
 0.62
 78.63
2016
 
 
 
 
 
 
 
201715,492
 19.10
 6.20
 72.80
 16,544
 47.20
 1.10
 63.40
201827,508
 22.59
 5.25
 80.78
 33,735
 49.36
 1.27
 72.73
The following table sets forth tonnage sold with concentrate assay values and value received per year:

Year
 Copper Concentrate  Zinc Concentrate 
  
 
dmt
  
 
%Cu
  
Value received
(in USD millions)
  
 
dmt
  
 
%Zn
  
Value received
(in USD millions)
 
2011  -   -   -   -   -   - 
2012  5,488   23.51  $6.9   15,193   47.53  $8.7 
2013  35,908   23.86  $80.8   38,430   47.79  $24.2 
2014  25,691   24.20  $42.3   29,326   50.52  $21.0 
2015  26,378   23.50  $34.6   24,547   49.68  $16.0 
2016  -   -   -   15,845   48.28  $9.5 
2017  13,940   19.00  $17.3   14,080   47.80  $16.9 

YearCopper Concentrate Zinc Concentrate
 

dmt

 

%Cu

 
Value received
(in USD millions)

 

dmt

 

%Zn

 
Value received
(in USD millions)

2011
 
 
 
 
 
20125,488
 23.51
 $6.9
 15,193
 47.53
 $8.7
201335,908
 23.86
 $80.8
 38,430
 47.79
 $24.2
201425,691
 24.20
 $42.3
 29,326
 50.52
 $21.0
201526,378
 23.50
 $34.6
 24,547
 49.68
 $16.0
2016
 
 
 15,845
 48.28
 $9.5
201713,940
 19.00
 $17.3
 14,080
 47.80
 $16.9
201826,286
 22.89
 $37.9
 31,272
 48.13
 $29.1
United States Mineral Interest

Our only mineral interest in the United States is its ownership interest in PEVM. See Item 1 – Business – United States Mineral Interests.

Offices

Outside of the facilities that we own, SHR has a leased corporate and sales office in Sugar Land, Texas.


Item 3. Legal Proceedings.

On March 21, 2011, Mr. El Khalidi filed suit against the Company in Texas alleging breach of contract and other claims.  The 88th Judicial District Court of Hardin County, Texas dismissed all claims and counterclaims for want of prosecution in this matter on July 24, 2013.  The Ninth Court of Appeals subsequently affirmed the dismissal for want of prosecution and the Supreme Court of Texas denied Mr. El Khalidi's petition for review.  On May 1, 2014, Mr. El Khalidi refiled his lawsuit against the Company for breach of contract and defamation in the 356th Judicial District Court of Hardin County, Texas.  The case was transferred to the 88th Judicial District Court of Hardin County, Texas.  On September 1, 2016, the Trial Court dismissed all of Mr. El Khalidi's claims and causes of action with prejudice.  On November 9, 2017, the 9th Court of Appeals affirmed the Trial Court's dismissal. Mr. El Khalidi filed a petition for review with the Supreme Court of Texas on January 23, 2018.  Liabilities of approximately $1.0 million remain recorded, and the options will continue to accrue in accordance with their own terms until all matters are resolved.

The Company is periodically named in legal actions arising from normal business activities. We evaluate the merits of these actions and, if we determine that an unfavorable outcome is probable and can be reasonably estimated, we will establish the necessary reserves. We are not currently involved in legal proceedings that could reasonably be expected to have a material adverse effect

on our business, prospects, financial condition or results of operations. We may become involved in material legal proceedings in the future.

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.

Our common stock traded on the New York Stock Exchange ("NYSE") during the last two fiscal years under the symbol "TREC". The following table sets forth the high and low bid prices for each quarter as reported by NYSE. The quotations reflect inter-dealer prices, without retail mark-up, mark-down or commission and may not represent actual transactions.

  NYSE 
  High  Low 
Fiscal Year Ended December 31, 2017      
Fourth Quarter ended December 31, 2017 $13.85  $11.25 
Third Quarter ended September 30, 2017 $13.50  $10.65 
Second Quarter ended June 30, 2017 $11.85  $10.20 
First Quarter ended March 31, 2017 $14.80  $10.45 
         
Fiscal Year Ended December 31, 2016        
Fourth Quarter ended December 31, 2016 $14.55  $9.75 
Third Quarter ended September 30, 2016 $11.74  $9.81 
Second Quarter ended June 30, 2016 $12.03  $8.17 
First Quarter ended March 31, 2016 $12.33  $8.75 

At March 7, 2018,4, 2019, there were approximately 354535 recorded holders (including brokers' accounts) of the Company's common stock. We have not paid any dividends since our inception and at this time, do not have any plansinstead deployed earnings to fund the development of our business. Any future determination to pay dividends will be at the discretion of our board of directors and will depend on our financial condition, results of operations, capital expenditure requirements, restrictions contained in current and future financing instruments, and other factors that our board of directors deems relevant. In addition, our ability to pay dividends depends in part on our receipt of cash dividends and distributions from our subsidiaries. The terms of certain of our current debt instruments restrict the foreseeable future.  The current lender allows the petrochemicalability of our subsidiaries to pay dividends, toas may the parent companyterms of up to 30%any of EBITDA.  We were in compliance with this restriction as of December 31, 2017.  See Note 13 to the Consolidated Financial Statements.

our future debt or preferred securities.
Total Stockholder Return

The following graph compares the cumulative total stockholder return on our common stock against the NYSE Composite Index and the S&P Specialty Chemical Index, for the five years ending December 31, 2017.2018. The graph was constructed on the assumption that $100 was invested in our common stock and each comparative on December 31, 2012,2013, and that any dividends were fully reinvested.

trec2018performancegr_image1.gif

Item 6. Selected Financial Data.

The following is a five-year summary of selected financial data for years ended December 31 (in thousands, except per share amounts): and should be read in conjunction with the information set forth in Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations and Part II, Item 8. Financial Statements and Supplementary Data:

  2017  2016  2015  2014  2013 
Revenues $245,143  $212,399  $241,976  $289,643  $236,227 
Net Income  18,009   19,428   18,598   15,571   19,498 
Net Income Per Share-Diluted  0.72   0.78   0.74   0.63   0.79 
EBITDA  24,742   41,694   39,639   29,814   32,505 
Adjusted EBITDA  31,710   31,008   47,317   33,027   25,020 
Total Assets (at December 31)  327,326   290,484   257,791   230,782   143,652 
Current Portion of Long-Term Debt
 (at December 31)
  8,061   10,145   8,061   6,728   1,397 
Total Long-Term Debt Obligations
 (at December 31)
  91,021   73,107   73,169   72,430   11,827 

Hurricane Harvey Impact
 2018
 2017
 2016
 2015
 2014
Revenues$287,932
 $245,143
 $212,399
 $241,976
 $289,643
Net (Loss) Income(2,332) 18,009
 19,428
 18,598
 15,571
Net (Loss) Income Per Share-Basic(0.10) 0.74
 0.80
 0.76
 0.64
Net (Loss) Income Per Share-Diluted(0.10) 0.72
 0.78
 0.74
 0.63
EBITDA (1)15,319
 24,742
 41,694
 39,639
 29,814
Adjusted EBITDA (1)20,619
 31,710
 31,008
 47,317
 33,027
Total Assets329,968
 327,326
 290,484
 257,791
 230,782
Current Portion of Long-Term Debt4,194
 8,061
 10,145
 8,061
 6,728
Total Long-Term Debt Obligations98,288
 91,021
 73,107
 73,169
 72,430

The financial impact of Hurricane Harvey to our company was significant.  Harvey made landfall on the Texas Gulf Coast on August 25, 2017, and affected operations at both SHR and TC.  We estimate the total negative impact to 2017 EBITDA was approximately $1.5 million to $1.8 million.  This includes expenses related to generator rentals, overtime labor, and maintenance and repairs of approximately $0.7 million.  This estimate also includes lost sales due to outages at customer and supplier facilities.  Neither of our facilities suffered any significant damage.
(1)Non-GAAP financial measure. See the information under the heading "Non-GAAP Financial Measures" below for additional information about this measures and a reconciliation to the most directly comparable financial measure under United States generally accepted accounting principles (“GAAP”).

Non-GAAP Financial Measures

We include in this Annual Report the non-GAAP financial measures of EBITDA, Adjusted EBITDA, and Adjusted Net Income (Loss) and provide reconciliations from our most directly comparable GAAP financial measuresmeasure to those measures.
We believe these financial measures provide users of our financial statements with supplemental information that may be useful in evaluating our operating performance. We also believe that such non–GAAP measures, when read in conjunction with our operating results presented under GAAP, can be used to better assess our performance from period to period and relative to performance of other companies in our industry, without regard to financing methods, historical cost basis or capital structure. These measures are not measures of financial performance or liquidity under GAAP and should be considered in addition to, and not as a substitute for, analysis of our results under GAAP.

EBITDA and Adjusted EBITDA: We define EBITDA as net income (loss) plus interest expense (benefit) including derivative gains and losses, income taxes, depreciation and amortization. We define Adjusted EBITDA as EBITDA plus share-basedshare–based compensation, plus restructuring and severance expenses, plus losses on extinguishment of debt, plus or minus equity in AMAK's earnings and losses or gains from equity issuances, and plus or minus gains or losses on acquisitions.

Adjusted Net Income (Loss): We define Adjusted Net Income (Loss) as net income (loss) plus or minus tax effected equity in AMAK's earnings and losses, or gains from equity issuances, plus or minus tax effected gains or losses on acquisitions,restructuring and plus or minus significantseverance expenses, and adjustments for tax code
changes.  These measures are not measures of financial performance or liquidity under U.S. GAAP and should be consideredlaw changes in addition to, not as a substitute for, net income, nor as an indicator of cash flows reported in accordance with U.S. GAAP. These measures are used as supplemental financial measures by management and external users of our financial statements such as investors, banks, research analysts and others.  We believe that these non-GAAP measures are useful as they exclude transactions not related to our core cash operating activities.

2017.
The following table presents a reconciliation of net income (loss), our most directly comparable GAAP financial performance measure for each of the periods presented, to EBITDA, Adjusted EBITDA, and Adjusted Net Income.

  2017  2016  2015  2014  2013 
Net Income $18,009  $19,428  $18,598  $15,571  $19,498 
                     
    Interest expense  2,934   1,981   2,232   1,042   520 
    Derivative (gains) losses on interest rate swap  (3)  4   (15)  378   301 
    Depreciation and amortization  10,961   9,777   9,060   5,676   4,039 
    Income tax expense (benefit)  (7,159)  10,504   9,764   7,147   8,147 
EBITDA  24,742   41,694   39,639   29,814   32,505 
                     
    Share-based compensation  2,707   2,552   2,353   2,141   1,215 
    Bargain purchase gain on B Plant  -   (11,549)  -   -   - 
    Equity in (earnings) losses of AMAK  4,261   1,479   5,325   1,072   (4,703)
    Gain from additional equity issuance by AMAK  -   (3,168)  -   -   (3,997)
Adjusted EBITDA $31,710  $31,008  $47,317  $33,027  $25,020 
                     
Net Income $18,009  $19,428  $18,598  $15,571  $19,498 
                     
   Bargain purchase gain on B Plant  -   (11,549)  -   -   - 
Equity in (earnings) losses of AMAK  4,261   1,479   5,325   1,072   (4,703)
Gain from additional equity issuance by AMAK  -   (3,168)  -   -   (3,997)
Total of adjustments  4,261   (13,238)  5,325   1,072   (8,700)
Taxes at statutory rate*  (895)  4,633   (1,864)  (375)  3,045 
Tax effected adjustments  3,366   (8,605)  3,461   697   (5,655)
    Tax benefit of rate change from Tax Cuts
      and Jobs Act
  (10,307)  -   -   -   - 
Adjusted Net Income $11,068  $10,823  $22,059  $16,268  $13,843 

 2018
 2017
 2016
 2015
 2014
Net (Loss) Income$(2,332) $18,009
 $19,428
 $18,598
 $15,571
          
Interest expense4,100
 2,934
 1,981
 2,232
 1,042
Derivative (gains) losses on interest rate swap
 (3) 4
 (15) 378
Depreciation and amortization14,358
 10,961
 9,777
 9,060
 5,676
Income tax (benefit) expense(807) (7,159) 10,504
 9,764
 7,147
EBITDA15,319

24,742

41,694

39,639

29,814
          
Share-based compensation*1,422
 2,707
 2,552
 2,353
 2,141
Bargain purchase gain on B Plant
 
 (11,549) 
 
Equity in losses of AMAK901
 4,261
 1,479
 5,325
 1,072
Loss on extinguishment of debt315
 
 
 
 
Restructuring and severance expenses2,347
 
 
 
 
Gain from additional equity issuance by AMAK
 
 (3,168) 
 
Adjusted EBITDA$20,304

$31,710

$31,008

$47,317

$33,027
          
Net Income$(2,332) $18,009
 $19,428
 $18,598
 $15,571
          
Bargain purchase gain on B Plant
 
 (11,549) 
 
Equity in (earnings) losses of AMAK901
 4,261
 1,479
 5,325
 1,072
Restructuring and severance expenses2,347
 
 
 
 
Gain from additional equity issuance by AMAK
 
 (3,168) 
 
Total of adjustments3,248
 4,261
 (13,238) 5,325
 1,072
Taxes at statutory rate**(682) (895) 4,633
 (1,864) (375)
Tax effected adjustments2,566

3,366

(8,605)
3,461

697
Tax benefit of rate change from Tax Cuts and Jobs Act
 (10,307) 
 
 
Adjusted Net Income$234
 $11,068
 $10,823
 $22,059
 $16,268
* Reduced to reflect amount included in Restructuring and Severance Expenses.
** The Company used a statutory rate of 35% for 20132014 through 2016. For 2017 and 2018 the Company does not estimateestimated current taxable income to be zero and usedcalculated deferred taxes using a statutory rate of 21% based on the enacted tax rate on December 22, 2017 (Note 2 and 17)16).

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

Management's Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with Item 8. Financial Statements and Supplementary Data.

Forward Looking Statements

Statements in Items 7Some of the statements and 7A, as well as elsewhere in or incorporated by referenceinformation contained in this Annual Report on Form 10-K may constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Statements regarding the Company's financial position, business strategy and plans and objectives of the Company's management for future operations and other statements that are not historical facts, are "forward-looking statements"forward-looking statements. Forward-looking statements are often characterized by the use of words such as that term is defined under applicable Federal securities laws. In some cases, "forward-looking statements" can be identified by terminology such as"outlook," "may," "will," "should," "could," "expects," "plans," "anticipates," "contemplates," "proposes," "believes," "estimates," "predicts," "potential" or "continue""projects," "potential," "continue," "intend," or the negative of such terms and other comparable terminology. terminology, or by discussions of strategy, plans or intentions.

Forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results to differ materially from those expressed or implied by such statements. Such risks, uncertainties and factors include, but are not limited to,to: general economic conditions domestically and internationally; insufficient cash flows from operating activities; difficulties in obtaining financing; outstanding debt and other financial and legal obligations; lawsuits; competition; industry cycles; feedstock, product and mineral prices; feedstock availability; technological developments; regulatory changes; environmental matters; foreign government instability; foreign legal and political concepts; and
foreign currency fluctuations, as well asfluctuations; and other risks detailed in this report under the Company'sheadings Part I, Item 1A. Risk Factors and Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and in our other filings with the U.S. Securities and Exchange Commission, including this Annual Report on Form 10-K, allSEC.
There may be other factors of which we are difficultcurrently unaware or deem immaterial that may cause our actual results to predictdiffer materially from the forward-looking statements. In addition, to the extent any inconsistency or conflict exists between the information included in this report and manythe information included in our prior reports and other filings with the SEC, the information contained in this report updates and supersedes such information.
Forward-looking statements are based on current plans, estimates, assumptions and projections, and, therefore, you should not place undue reliance on them. Forward-looking statements speak only as of whichthe date they are beyond the Company's control.made, and we undertake no obligation to update them in light of new information or future events.

Overview

Overview
The following discussion and analysis of our financial results, as well as the accompanying consolidated financial statements and related notes to consolidated financial statements to which they refer, are the responsibility of the management of the Company. Our accounting and financial reporting fairly reflect our business model involving the manufacturing and marketing of specialty petrochemical products and specialty waxes. Our business model involves the manufacture and sale of tangible products and providing custom processing services. Our consistent approach to providing high purity products and quality services to our customers has helped to sustain our current position as a preferred supplier of various specialty petrochemical products.

Business Environment and Risk Assessment

We believe we are well-positioned to participate in the US chemical industry growth driven by new investments to grow the Company.and overall economic growth. While petrochemical prices are volatile on a short-term basis and depend on the demand of our customers' products, our investment decisions are based on our long-term business outlook using a disciplined approach in selecting and pursuing the most attractive investment opportunities.

Specialty Petrochemical Operations

SHR's worldwide specialty petrochemical demand increased during 20172018 compared to 2016.   Petrochemical product2017. Product sales revenue increased 17.5%19.3% driven primarily by petrochemical volume growth of 9.1%7.6%. Overall product prices also increased compared to 2017 primarily due to higher feedstock costs in 2018 compared to 2017. We continued to emphasize operational excellence and our competitive advantages achieved through our high quality products and outstanding customer service and responsiveness.

We are also focused on improving operations and plant reliability.
During 20172018 feedstock prices were about 15%24%, or $0.28 per gallon, higher than 20162017 reflecting higher crude oil prices. During 2017, average feedstock price rose by $0.17 per gallon from 2016.  Fourth quarter 2017After steadily increasing for most of 2018 feedstock prices were 7.2% or $0.09 per gallon higher compared todeclined sharply in the fourth quarter of 2016.2018. About 60% of our prime products are sold under formula pricing whereby feedstock costs are passed along to the customer typically with a one month lag. Thus, when feedstock prices start rising, we experience lower margins as formula pricing lags feedstock costs. During 2017most of 2018 prime products margins declinedwere pressured due to rising feedstock costs and as a result of greater competitive pricing pressure on prime products sales that are based on spot pricing not formula-basednon-formula pricing.

Our byproduct margins were under pressure in the fourth quarter due to the Advanced Reformer outage as we sold byproducts at prices below the cost of feedstock.
Specialty Wax Operations

Most wax markets are mature. Key applications for our polyethylene waxes are in hot melt adhesives ("HMA"), plastic processing, PVC lubricants and inks, paints and coatings, where they act as surface or rheology modifiers. The HMA market is expected to grow at a higher rate than GDP growth due to growth in the developing markets and increases in packaging requirements due to changes in consumer purchasing (shift to home deliveries via the internet) in developed economies. Road marking paints are also expected to grow at rates exceeding GDP growth based upon an expectation that there will be infrastructure investment in the U. S.U.S.   The PVC market is expected to grow at GDP rates; however, we expect to get more traction of our products within this market with acceptance of our new PVC grade waxes. The global wax market is being impacted bybenefiting from the reduction of paraffin wax availability from large refiners as they move toward more hydrocracking and hydroisomerization to produce group III lube oils and distillate. Our wax sales volume increased 4%approximately 5% in 20172018 from 20162017 while revenues increased 17%approximately 13%.


Restructuring and Severance Impact

During 2018, the Company incurred restructuring and severance expenses of $2.3 million which are included in General and Administrative Expenses. These expenses are primarily attributable to the termination of certain executives during 2018 as part of the restructuring of executive management and to the reduction in the workforce at our Silsbee, Texas facility in December 2018. These expenses relate to severance, stock compensation for continued vesting of time-vested shares issued under the Company's long-term incentive plan, and certain employee benefits including medical insurance and vacation. As of December 31, 2018, approximately $1.1 million had been incurred, and an additional liability of $1.2 million was accrued related to future benefits.
Hurricane Harvey Impact
24


Hurricane Harvey to our company was significant. Harvey made landfall on the Texas Gulf Coast on August 25, 2017, and affected operations at both SHR and TC. We estimated the total negative impact to 2017 EBITDA ranged from approximately $1.5 million to $1.8 million. This included expenses related to generator rentals, overtime labor, and maintenance and repairs of approximately $0.7 million. This estimate also included lost sales due to outages at customer and supplier facilities. Neither of our facilities suffered any significant damage.
Liquidity and Capital Resources

Working Capital

Our approximate working capital days are summarized as follows:

  December 31, 2017  December 31, 2016  December 31, 2015 
Days sales outstanding in accounts receivable  38.4   38.2   29.4 
Days sales outstanding in inventory  27.5   30.2   23.8 
Days sales outstanding in accounts payable  27.3   22.9   12.2 
Days of working capital  38.5   45.5   41.0 

 December 31, 2018
 December 31, 2017
 December 31, 2016
Days sales outstanding in accounts receivable34.4
 38.4
 38.2
Days sales outstanding in inventory21.0
 27.5
 30.2
Days sales outstanding in accounts payable24.2
 27.3
 22.9
Days of working capital31.1
 38.5
 45.5
Our days sales outstanding in accounts receivable remained steady from 2016 to 2017 but increaseddecreased from 20152017 to 20162018 due to longer payment terms for some foreign customers because of increased shipping times.

greater increase in sales revenue relative to the increase in receivables.
Our days sales outstanding in inventory decreased from 20162017 to 20172018 due to an on-purposea planned reduction in inventory at TC.

Our days sales outstanding in accounts payable increaseddecreased due to an increasea decrease in payables because of the ongoingcompletion of certain capital construction projectprojects at SHR.

Sources and Uses of Cash

Cash and cash equivalents decreasedincreased by $5.4$3.7 million during the year ended December 31, 2017.2018. The change in cash and cash equivalents is summarized as follows:

  2017  2016  2015 
Net cash provided by (used in) (in thousands) 
  Operating activities $30,828  $28,514  $39,565 
  Investing activities  (51,691)  (40,509)  (31,294)
  Financing activities  15,502   1,761   1,846 
Increase (decrease) in cash and equivalents $(5,361) $(10,234) $10,117 
Cash and cash equivalents $3,028  $8,389  $18,623 

 2018
 2017
 2016
Net cash provided by (used in)(in thousands)
Operating activities$19,895
 $30,828
 $28,514
Investing activities(19,871) (51,691) (40,509)
Financing activities3,683
 15,502
 1,761
Increase (decrease) in cash and equivalents$3,707

$(5,361)
$(10,234)
Cash and cash equivalents$6,735
 $3,028
 $8,389
Operating Activities
Operating activities generated cash of $19.9 million during fiscal 2018 as compared with $30.8 million of cash provided during fiscal 2017. Net income decreased by $20.3 million and cash provided by operations decreased by $10.9 million from 2017 to 2018 due primarily to the following factors:
Net income for 2018 included a non-cash depreciation and amortization charge of $14.4 million as compared to 2017 which included a non-cash depreciation and amortization charge of $11.0 million;
Net income for 2018 included non-cash deferred income tax liability of $1.6 million as compared to non-cash deferred income tax liability of $5.8 million in 2017;

Trade receivables decreased $1.5 million in 2018 as compared to an decrease of $3.6 million in 2017;
Income taxes receivable decreased $5.4 million in 2018 (primarily due to collection of federal and state research and development credits, carryback claims, and refunds of tax payments on deposit) as compared to an increase of $1.6 million in 2017 (primarily due to federal and state research and development credits and carryback claims); and
Inventory decreased $1.9 million in 2018 as compared to an increase of $0.6 million in 2017.
These significant sources of cash were partially offset by the following decreases in cash provided by operations:
Net income for 2018 included a non-cash equity in loss from AMAK of $0.9 million as compared to a non-cash equity in loss from AMAK of $4.3 million in 2017; and
Accounts payable and accrued liabilities decreased $2.2 million in 2018 as compared to a decrease of $7.0 million in 2017 due to the release of post-retirement obligations to a former director as well as the completion of certain capital projects.
Operating activities generated cash of $30.8 million during fiscal 2017 as compared with $28.5 million of cash provided during fiscal 2016. Net income decreased by $1.4 million from 2016 to 2017; however, cash provided by operations increased by $2.3 million due primarily to the following factors:

Net income for 2017 included a non-cash equity in loss from AMAK of $4.3 million as compared to a non-cash equity in loss from AMAK of $1.5 million and a $3.2 million gain from additional equity issuance by AMAK in 2016;
·Net income for 2017 included a non-cash equity in loss from AMAK of $4.3 million as compared to a non-cash equity in loss from AMAK of $1.5 million and a $3.2 million gain from additional equity issuance by AMAK in 2016;
Net income for 2016 included a non-cash bargain purchase gain from the B Plant acquisition of $11.5 million as compared to 2017 which had no gain;

Net income for 2017 included a non-cash depreciation and amortization charge of $11.0 million as compared to 2016 which included a non-cash depreciation and amortization charge of $9.8 million;
·Net income for 2016 included a non-cash bargain purchase gain from the B Plant acquisition of $11.5 million as compared to 2017 which had no gain;
Accounts payable and accrued liabilities increased $7.0 million in 2017 (primarily due to increased construction expenditures) as compared to an increase of $3.2 million in 2016 (also primarily due to construction projects);

Prepaid expenses and other assets increased $0.8 million in 2017 (primarily due to the inventorying of spares parts) as compared to an increase of $1.0 million in 2016 (primarily due to license fees for the Advanced Reformer unit being constructed); and
·Net income for 2017 included a non-cash depreciation and amortization charge of $11.0 million as compared 2016 which included a non-cash depreciation and amortization charge of $9.8;

·Accounts payable and accrued liabilities increased $7.0 million in 2017 (primarily due to increased construction expenditures) as compared to an increase of $3.2 million in 2016 (also primarily due to construction projects);

·Prepaid expenses and other assets increased $0.8 million in 2017 (primarily due to the inventorying of spares parts) as compared to an increase of $1.0 million in 2016 (primarily due to license fees for the advanced reformer unit being constructed); and

·Inventory increased $0.6 million in 2017 (primarily due to an increase in deferred sales which increases inventory in transit) as compared to an increase of $2.1 million in 2016 (due to lower sales volume).

These significant sources of cash were partially offset by the following decreases in cash provided by operations:

Net income for 2017 included non-cash deferred income tax liability of $5.8 million as compared to non-cash deferred income tax benefit of $8.7 million in 2016;
·Net income for 2017 included non-cash deferred income tax liability of $5.8 million as compared to  non-cash deferred income tax benefit of $8.7 million in 2016;
Income taxes receivable increased $1.6 million in 2017 (primarily due to federal and state claims filed for research and development credits and carryback claims) as compared to an decrease of $3.7 million in 2016 (primarily due to overpayments being applied to 2016 estimated taxes); and

·Income taxes receivable increased $1.6 million in 2017 (primarily due to federal and state research and development credits and carryback claims) as compared to an decrease of $3.7 million in 2016 (primarily due to overpayments being applied to 2016 estimated taxes); and

·Trade receivables increased $3.6 million in 2017 (primarily due to an increase in the average selling price) as compared to an increase of $2.8 million in 2016 (due to an increase in wax sales in December and longer payment terms for some foreign customers because of increased shipping times);

Operating activities generated cash of $28.5 million during fiscal 2016 as compared with $39.6 million of cash provided during fiscal 2015.  Net income increased by $0.8 million from 2015 to 2016; however, cash provided by operations decreased by $11.1 million due primarily to the following factors:

·Net income for 2016 included a non-cash equity in loss from AMAK of $1.5 million and a $3.2 million gain from additional equity issuance by AMAK as compared to equity in losses from AMAK $5.3 million in 2015;

·Net income for 2016 included a bargain purchase gain from the B Plant acquisition of $11.5 million as compared to 2015 which had no gain;

·Trade receivables increased approximately $2.8 million in 2016 (due to an increase in wax sales in December and longer payment terms for some foreign customers because of increased shipping times) as compared to a decrease of approximately $8.8 million (due to a 27.1% decrease in the average per gallon selling price of petrochemical products) in 2015;

·Prepaid expenses and other assets increased $1.0 million in 2016 (primarily due to license fees for the advanced reformer unit being constructed) as compared to a decrease of  $0.9 million in 2015 (primarily due to expensing of loan fees and disbursement of the prepayment of a lawsuit settlement); and

·Other liabilities decreased $0.2 million in 2016 (due to the recognition of revenue from customer funding of capital projects) as compared to an increase of $2.2 million in 2015 (due to customer funding of capital projects for custom processing).

These significant uses of cash were partially offset by the following increases in cash provided by operations:

·Net income for 2016 included a non-cash depreciation and amortization charge of $9.8 million as compared to 2015 which included a non-cash depreciation and amortization charge of $9.1 million;

·Net income for 2016 included non-cash deferred income tax benefits of $8.7 million as compared to $5.6 million in 2015;

·Income taxes receivable decreased $3.7 million in 2016 (primarily due to overpayments being applied to 2016 estimated taxes) as compared to an increase of $7.2 million in 2015 (primarily due to estimated tax payments being made prior to the update of tax laws passed in December 2015);

·Inventory increased $2.1 million in 2016 (due to lower sales volume) as compared to an increase of $3.0 million in 2015 (due to TC's increase in raw material receipts from their primary supplier which translated into additional finished goods production); and

·Accounts payable and accrued liabilities increased $3.2 million in 2016 (primarily due to increased construction expenditures) as compared to a decrease of $2.4 million in 2015 (primarily due to construction projects being completed during the year).


Investing Activities

Cash used by investing activities during fiscal 2018 was approximately $19.9 million, representing a decrease of approximately $31.8 million compared to fiscal 2017. The majority of the decrease was due to the completion of construction projects for the Advanced Reformer unit. During 2018, major capital expenditures included $14.9 million to complete the Advanced Reformer unit, which includes $1 million insurance deductible related to the February 2018 fire and $3 million for the catalyst replacement in December 2018, $1.3 million for a rail spur addition at SHR and 0.5 million for a loading rack at SHR.
Cash used by investing activities during fiscal 2017 was approximately $51.7 million, representing an increase of approximately $11.2 million over the corresponding period of 2016. The majority of the increase was due to the construction projects for the hydrogenation/distillation unit and the advanced reformerAdvanced Reformer unit. During 2017, we expended $10.8 million on the hydrogenation/distillation project, $0.9 million to upgrade B Plant, $32.5 million to construct the advanced reformerAdvanced Reformer unit, $1.9 million for railspur addition, $1.0 million for additional tankage and upgrades to existing tankage, $0.9 million for transport trucks, and $3.7 million on various plant improvements and equipment.

Financing Activities
Cash usedprovided by investingfinancing activities during fiscal 20162018 was approximately $40.5$3.7 million representing an increaseversus cash provided of approximately $9.2 million over the corresponding period of 2015.  The majority of the increase was due to the construction projects for the hydrogenation/distillation unit and the advanced reformer unit.  During 2016 we expended $15.5 million on the hydrogenation/distillation project, $3.9 million to purchaseduring fiscal 2017. During 2018, we increased our line of credit and upgrade B Plant, $11.6 million to construct the advanced reformer unit, $1.9 million for tank farm improvements, $1.2 million for high purity hexane productions, $0.8 million for cooling tower construction, $0.6 million for transport trucks, $0.5 million for loading rack expansion capabilities,consolidated our acquisition and $4.5term loans. We made principal payments of $15.4 million on various plant improvements and equipment.

Financing Activities

our term debt. We drew $18.2 million on our revolving line of credit, primarily to fund our capital projects. See Note 12 for additional discussion on long-term debt.
Cash provided by financing activities during fiscal 2017 was approximately $15.5 million versus cash provided of $1.8 million during the corresponding period of 2016. During 2017 we made principal payments of $8.7 million on our acquisition loan and $1.7 million on our term debt. We drew $26.0 million on our line of credit primarily to help fund our expansioncapital projects.

Cash provided by financing activities during fiscal 2016 was approximately $1.8 million versus cash provided of $1.8 million during the corresponding period of 2015.  During 2016 we made principal payments of $5.3 million on our acquisition loan and $1.0 million on our term debt.  We drew $8.0 million on our line of credit to help fund our expansion projects.

Credit Agreement

OnIn October 1, 2014, TOCCO, SHR, GSPL and TC (SHR, GSPL and TC collectively the "Guarantors"“Guarantors”) entered into an Amendedamended and Restated Credit Agreement ("ARC Agreement"restated credit agreement (as amended to the date hereof, the “ARC Agreement”), which originally provided (i) a revolving credit facility (which we refer to herein as the “Revolving Facility”) with revolving commitments of $40.0 million and (ii) term loan borrowings consisting of (A) a $70.0 million single advance term loan incurred to partially finance the lendersacquisition of TC (which we refer to as the “acquisition loan”) and (B) a $25.0 multiple advance term loan facility for which from timeborrowing availability ended on December 31, 2015 (which we collectively refer to time are partiesherein as the “Term Loan Facility” and, together with the Revolving Facility, the “Credit Facilities”).

Only July 31, 2018, TOCCO and the Guarantors entered into a Fourth Amendment to the ARC Agreement (collectively,(the “Fourth Amendment”) pursuant to which the "Lenders") and Bank of America, N.A., a national banking association, as Administrative Agent forrevolving commitments under the Lenders, and Merrill Lynch, Pierce, Fenner & Smith Incorporated as Lead Arranger. On March 28, 2017, we entered into a Second AmendmentRevolving Facility were increased to $75.0 million. Pursuant to the Fourth Amendment, total borrowings under the Term Loan Facility were increased to $87.5 million under a single combined term loan, which comprised new term loan borrowings together with approximately $60.4 million of previously outstanding term loans under the Term Loan Facility. The $60.4 million of previously outstanding term loans included the remaining outstanding balances on the Acquisition loan and the multiple advance term loan facility described above. Proceeds of the new borrowings under the Term Loan Facility were used to repay a portion of the outstanding borrowings under the Revolving Facility and pay fees and expenses of the transaction. As of December 31, 2018, we had $18 million in borrowings outstanding under the Revolving Facility and $84.5 million in borrowings outstanding under the Term Loan Facility. In addition, we had the ability to borrow an additional approximately $18 million under our Revolving Facility at December 31, 2018. TOCCO’s ability to make additional borrowings under the Revolving Credit Facility at December 31, 2018 was limited by, and in the future may continue to be limited by, our obligation to maintain compliance with the covenants contained in the ARC with terms which increased the MaximumAgreement (including maintenance of a maximum Consolidated Leverage Ratio financial covenant of 3.25x to 4.00x at March 31, 2017, and 4.25x at June 30, 2017, before stepping down to 3.75x at September 30, 2017, 3.50x at December 31, 2017, and reverting to the original financial covenant of 3.25x at March 31, 2018.


For Fiscal Quarter Ending
Maximum Consolidated Leverage Ratio
March 31, 20174.00 to 1.00
June 30, 20174.25 to 1.00
September 30, 20173.75 to 1.00
December 31, 20173.50 to 1.00
March 31, 2018 and each fiscal quarter thereafter3.25 to 1.00

The Second Amendment also reduced the Minimumminimum Consolidated Fixed Charge Coverage Ratio of 1.25x to 1.10x at March(each as defined in the ARC Agreement)).

The maturity date for the ARC Agreement is July 31, 2017, 1.05x at June 30, 2017 and September 30, 2017, 1.10x at December 31, 2017, before reverting2023. Subject to the original financial covenantlenders acceptance of 1.25xany increased commitment and other conditions, we have the option, at March 31, 2018.

For Fiscal Quarter Ending
Minimum Consolidated Fixed Charge Coverage Ratio
March 31, 20171.10 to 1.00
June 30, 20171.05 to 1.00
September 30, 20171.05 to 1.00
December 31, 20171.10 to 1.00
March 31, 2018 and each fiscal quarter thereafter1.25 to 1.00

Also, under the terms of the Second Amendment, two additional levels of pricing were added – levels 4 and 5.

Level
Consolidated Leverage Ratio
LIBOR Margin
Base Rate Margin
Commitment Fee
 
 1 Less than 1.50 to 1.00  2.00%  1.00%  0.25%
 2 Greater than or equal to 1.50 to 1.00 but less than 2.00 to 1.00  2.25%  1.25%  0.25%
 3 Greater than or equal to 2.00 to 1.00 but less than 3.00 to 1.00  2.50%  1.50%  0.375%
 4 Greater than or equal to 3.00 to 1.00 but less than 3.50 to 1.00  2.75%  1.75%  0.375%
 5 Greater than or equal to 3.50 to 1.00  3.00%  2.00%  0.375%

We were in compliance with all covenants at December 31, 2017.

On July 25, 2017, Texas Oil & Chemical Co. II, Inc. ("TOCCO"), South Hampton Resources, Inc. ("SHR"), Gulf State Pipe Line Company, Inc. ("GSPL"), and Trecora Chemical, Inc. ("TC") (SHR, GSPL and TC collectively the "Guarantors") entered into a Third Amendment to Amended and Restated Credit Agreement ("3rd Amendment") with the lenders which fromany time, to time are partiesrequest an increase to the Amended and Restated Credit  Agreement (collectively, the "Lenders") and Bank of America, N.A., a national banking association, as Administrative Agent for the Lenders.  The 3rd Amendment increasedcommitment under the Revolving Facility from $40,000,000and/or the Term Loan Facility by an additional amount of up to $60,000,000.  There were no other changes to$50.0 million in the Revolving Facility.  Underaggregate.

Borrowings under each of the ARC as amended, we have a $60.0 million revolving line of credit which matures on October 1, 2019.  TheCredit Facilities bear interest rate on the loan varies accordingoutstanding principal amount at a rate equal to several options.  InterestLIBOR plus an applicable margin of 1.25% to 2.50% or, at our option, the Base Rate plus an applicable margin of 0.25% to 1.50%, in each case, with the applicable margin being determined based on the loan is paid monthly and aConsolidated Leverage Ratio of TOCCO. A commitment fee of between 0.25%0.20% and 0.375% is duealso payable quarterly on the unused portion of the loan.  At December 31, 2017, approximately $25.0 millionRevolving Facility. For 2018, the effective interest rate for the Credit Facilities was available to be drawn.

Subject to the terms and conditions of the ARC Agreement as amended, TOCCO may (a) borrow, repay and re-borrow revolving loans (collectively, the "Revolving Loans") from time to time during the period ending September 30, 2019, up to but not exceeding at any one time outstanding $60.0 million (the "Revolving Loan Commitment") and (b) request up to $5.0 million of letters of credit and $5.0 million of swingline loans.  Each of the issuance of letters of credit and the advance of swingline loans shall be considered usage of the Revolving Loan Commitment.  All outstanding loans under the Revolving Loans must be repaid on October 1, 2019.  As of December 31, 2017, and 2016, TOCCO had long-term outstanding borrowings of $35.0 million and $9.0 million, respectively under the Revolving Loans.

Under the ARC Agreement, TOCCO also borrowed $70.0 million in a single advance term loan (the "Acquisition Term Loan") to partially finance the Acquisition.  At December 31, 2017, there was a short-term amount of $7.0 million and a long-term amount of $40.3 million outstanding.  At December 31, 2016, there was a short-term amount of $8.8 million and a long-term amount of $47.3 million outstanding.

Under the ARC Agreement, TOCCO also had the right to borrow $25.0 million in a multiple advance loan (the "Term Loans," together with the Revolving Loans and Acquisition Term Loan, collectively the "Loans")4.19%. Borrowing availabilityBorrowings under the Term Loans ended on December 31, 2015.  The Term Loans converted from a multiple advance loanLoan Facility are subject to a "mini-perm" loan once TOCCO had fulfilled certain obligations such as certification that construction of D Train was completed in a good and workmanlike manner, receipt of applicable permits and releases from governmental authorities, and receipt of releases of liens from the contractor and each subcontractor and supplier.  At December 31, 2017, there was a short-term amount of $1.3 million and a long-term amount of $16.0 million outstanding.  At December 31, 2016, there was a short-term amount of $1.7 million and a long-term amount of $17.3 million outstanding.  The Loans also include a $40,000,000 uncommitted increase option (the "Accordion Option").

All of the Loans under the ARC Agreement accrue interest at the lower of (i) a London interbank offered rate ("Eurodollar Rate") plus a margin of between 2.00% and 2.50%quarterly amortization payments based on the total leverage ratio of TOCCO and its subsidiaries on a consolidated basis, or (ii) a base rate ("Base Rate") equal to the highest of the federal funds rate plus 0.50%, the rate announced by Bank of America, N.A. as its prime rate, and Eurodollar Rate plus 1.0%, plus a margin of between 1.00% to 1.50% based on the total leverage ratio of TOCCO and its subsidiaries on a consolidated basis.  The Revolving Loans will accrue a commitment fee on the unused portion thereof at a rate between 0.25% and 0.375% based on the total leverage ratio of TOCCO and its subsidiaries on a consolidated basis.  Interest on the Revolving Loans will be payable quarterly, with principal due and payable at maturity.  Interest on the Acquisition Term Loan became payable quarterly using a ten year commercial style amortization commencing on December 31, 2014.  The Acquisition Term Loan was also payable as to principal beginning on December 31, 2014, and continuing on the last business day of each March, June, September and December thereafter, each payment in an amount equal to $1,750,000,method over a twenty year period; provided, that the final principal installment will be paid on the September 30, 2019, maturity date shalland will be in an amount equal to the then outstanding unpaid principal balance of the Acquisition Term Loan.  Interest onborrowings under the Term Loans is payable quarterly using a fifteen year commercial style amortization, with interest only through December 31, 2015, and principal payments commencedLoan Facility on March 31, 2016.  Interest on the Loans is computed (i) in the case of Base Rate Loans, on the basis of a 365-day or 366-day year, as the case may be, and (ii) in the case of Eurodollar Rate Loans, on the basis of a 360-day year, in each case for the actual number of days elapsed in the period during which it accrues.such date.

The Loans may be prepaid in whole or in part without premium or penalty (Eurodollar Rate Loans are prepayable only on the last days of related interest periods or upon payment of any breakage costs) and the lenders' commitments relative thereto reduced or terminated.  Subject to certain exceptions and thresholds, outstanding Loans shall be prepaid by an amount equal to 100% of the net cash proceeds from: (i) all sales, transfers, licenses, lease or other disposition of any property by TOCCO and Guarantors (other than a permitted transfer); (ii) any equity issuance by TOCCO or the Guarantors; (iii) any debt issuance by TOCCO or the Guarantors; or (iv) the receipt of any cash received by TOCCO or the Guarantors not in the ordinary course of business.  Amounts prepaid in connection with the mandatory repayments described above will be applied first,Pursuant to the principal repayment installmentsterms of the Acquisition Term Loan in inverse order of maturity, second, to the principal repayment installments of the Term Loans in inverse order of maturity and, third, to the Revolving Loans in the manner set forth in the Amended and Restated Credit Agreement.

All amounts owing under the ARC Agreement, TOCCO must maintain a maximum Consolidated Leverage Ratio of 4.75 to 1.00 for the four fiscal quarters ended December 31, 2018, 4.25 to 1.00 for the four fiscal quarters ended March 31, 2019, 4.00 to 1.00 for the four fiscal quarters ended June 30, 2019 and all obligations under3.75 to 1.00 for the guarantees will be secured in favorfour fiscal quarters ended September 30, 2019. For the four fiscal quarters ended December 31, 2019 and each fiscal quarter thereafter, TOCCO must maintain a Consolidated Leverage Ratio of 3.50 to 1.00 (subject to temporary increase following certain acquisitions). Additionally, TOCCO must maintain a minimum Consolidated Fixed Charge Coverage Ratio as of the Lenders by substantially allend of the assetsany fiscal quarter of TOCCO and its subsidiaries and guaranteed by its subsidiaries.1.15 to 1.00.

The ARC Agreement contains, among other things, other customary covenants, including restrictions on the incurrence of additional indebtedness, the granting of additional liens, the making of investments, the disposition of assets and other fundamental changes, the transactions with affiliates and the declaration of dividends and other restricted payments. The ARC Agreement further includes customary representations and warranties and events of default, and upon occurrence of such events of default the outstanding obligations under the ARC Agreement may be accelerated and become immediately due and payable and the commitment of the Lenders

lenders to make loans under the ARC Agreement may be terminated. TOCCO wasWe were in compliance with all covenants at December 31, 2017.

Our average floating interest rate on debt outstanding under our credit facility at December 31, 2017, was 4.07%.2018.

Anticipated Cash Needs

We believe that the Company is capable of supporting its operating requirements and capital expenditures through internally generated funds supplemented with borrowings under our credit facility.

Credit Facilities.
Results of Operations

Comparison of Years 2018, 2017, 2016 2015

The tables containing financial and operating information set forth below are presented to facilitate the discussion of the results of operations, and should not be considered a substitute for, and should be read in conjunction with, the audited consolidated financial statements.

Specialty Petrochemical Segment
 2018
 2017
 Change
 %Change
 (in thousands)  
Specialty Petrochemical Product Sales$242,763
 $203,515
 $39,248
 19.3 %
Processing Fees6,916
 6,866
 50
 0.7 %
Gross Revenue$249,679

$210,381

$39,298
 18.7 %
        
Volume of specialty petrochemical sales (thousand gallons)89,644
 83,326
 6,318
 7.6 %
Volume of prime product sales (thousand gallons)69,403
 63,990
 5,413
 8.5 %
        
Cost of Sales$223,796
 $169,213
 $54,583
 32.3 %
Gross Margin10.4% 19.6% (9.2)% (46.9)%
Total Operating Expense*73,096
 58,740
 14,356
 24.4 %
Natural Gas Expense*5,645
 4,912
 733
 14.9 %
Operating Labor Costs*18,040
 15,608
 2,432
 15.6 %
Transportation Costs*29,580
 25,282
 4,298
 17.0 %
General & Administrative Expense11,413
 10,243
 1,170
 11.4 %
Depreciation**8,932
 6,310
 2,622
 41.6 %
        
Capital Expenditures$22,431
 $37,569
 $(15,138) (40.3)%
*Included in cost of sales
**Includes $8,333 and $5,586 for 2018 and 2017 which is included in cost of sales and operating expenses


 2017
 2016
 Change
 %Change
 (in thousands)  
Specialty Petrochemical Product Sales$203,515
 $173,262
 $30,253
 17.5 %
Processing Fees6,866
 8,766
 (1,900) (21.7)%
Gross Revenue$210,381

$182,028

$28,353
 15.6 %
        
Volume of specialty petrochemical sales (thousand gallons)83,326
 76,372
 6,954
 9.1 %
Volume of prime product sales (thousand gallons)63,990
 58,441
 5,549
 9.5��%
        
Cost of Sales$169,213
 $146,159
 $23,054
 15.8 %
Gross Margin19.6% 19.7% (0.1)% (0.5)%
Total Operating Expense*58,740
 58,536
 204
 0.3 %
Natural Gas Expense*4,912
 3,301
 1,611
 48.8 %
Operating Labor Costs*15,608
 16,094
 (486) (3.0)%
Transportation Costs*25,282
 24,138
 1,144
 4.7 %
General & Administrative Expense10,243
 9,172
 1,071
 11.7 %
Depreciation**6,310
 5,825
 485
 8.3 %
        
Capital Expenditures$37,569
 $22,948
 $14,621
 63.7 %
Specialty Petrochemical Segment

  2017  2016  Change  %Change 
  (in thousands)    
Petrochemical Product Sales $203,515  $173,262  $30,253   17.5%
Processing Fees  6,866   8,766   (1,900)  (21.7%)
Gross Revenue $210,381  $182,028  $28,353   15.6%
                 
Volume of petrochemical sales (thousand gallons)  83,326   76,372   6,954   9.1%
Volume of prime product sales (thousand gallons)  63,990   58,441   5,549   9.5%
                 
Cost of Sales $169,213  $146,159  $23,054   15.8%
Gross Margin  19.6%  19.7%  (0.1%)  (0.7%)
Total Operating Expense*  58,740   58,536   204   0.3%
Natural Gas Expense*  4,912   3,301   1,611   48.8%
Operating Labor Costs*  15,608   16,094   (486)  (3.0%)
Transportation Costs*  25,282   24,138   1,144   4.7%
General & Administrative Expense  10,243   9,172   1,071   11.7%
Depreciation**  6,310   5,825   485   8.3%
                 
Capital Expenditures $37,569  $22,948   14,621   63.7%
*Included in cost of sales
**Includes $5,586 and $5,187 for 2017 and 2016 which is included in cost of sales and operating expenses

  2016  2015  Change  %Change 
  (in thousands)    
Petrochemical Product Sales $173,262  $212,431  $(39,169)  (18.4%)
Processing Fees  8,766   5,802   2,964   51.1%
Gross Revenue $182,028  $218,233  $(36,205)  (16.6%)
                 
Volume of petrochemical sales (thousand gallons)  76,372   86,908   (10,536)  (12.1%)
Volume of prime product sales (thousand gallons)  58,441   64,103   (5,662)  (8.8%)
                 
Cost of Sales $146,159  $165,448  $(19,289)  (11.7%)
Gross Margin  19.7%  24.2%  (4.5%)  (18.6%)
Total Operating Expense*  58,536   56,659   1,877   3.3%
Natural Gas Expense*  3,301   4,190   (889)  (21.2%)
Operating Labor Costs*  16,094   16,124   (30)  (0.2%)
Transportation Costs*  24,138   24,836   (698)  (2.8%)
General & Administrative Expense  9,172   9,092   80   0.9%
Depreciation**  5,825   4,484   1,341   29.9%
                 
Capital Expenditures $22,948  $24,358   (1,410)  (5.8%)
*Included in cost of sales
**Includes $5,187 and $3,872 for 2016 and 2015 which is included in cost of sales and operating expenses

Gross Revenue

2017-2018
Revenues increased from 2017 to 2018 by approximately 18.7% due to an increase in specialty petrochemical sales volume and an increase in average selling prices.
2016-2017

Revenues increased from 2016 to 2017 by approximately 15.6% due to an increase in sales volume of 9.1% and an increase in average selling price of 7.7% partially offset by a decrease in processing fees of 21.7%.

Specialty Petrochemical Product Sales
2015-20162017-2018

Revenues decreasedSpecialty petrochemical product sales increased 19.3% from 20152017 to 2016 by approximately 16.6%2018 due to a decreasean increase in total sales volume of 12.1%7.6% and a decreasean increase in average selling price of 7.2% partially offset by an10.9%. Our average selling price increased partly because of higher feedstock costs. A large portion of our prime products sales are contracted with pricing formulas which are tied to prior month Natural Gasoline prices which is our primary feedstock. Average delivered feedstock price for 2018 was 21.1% higher than 2017 as Natural Gasoline prices rose with crude oil prices for most of the year but then declined sharply in the fourth quarter. The increase in processingaverage selling prices was also due to higher non-formula pricing for our prime products. Additionally, prices for byproducts in 2018 were about 24% higher than in 2017 due to higher prices for the components in our byproducts stream. This also contributed to higher overall selling prices. Byproduct prices fell significantly during the fourth quarter due to the Advanced Reformer outage and inability to upgrade byproducts. Additionally, in the fourth quarter byproduct prices fell faster than feedstock prices resulting in negative margins.
Prime product sales volume (total specialty petrochemical product sales volume less byproduct sales volume) increased 8.5% from 2017 to 2018 as demand was greater in all of our end-use markets and especially in the Canadian oil sands market. Sales to the Canadian oil sands market continues to be volatile. We believe the volatility in demand is primarily based on continued manufacturing efficiencies at customer sites and by the crude oil pricing environment. Margins on our specialty petrochemical products continued to be negatively impacted by shortfall fees that we incurred due to feedstock purchases below minimum amounts as prescribed by our agreement with suppliers. However the amount of 51.1%.the penalties in 2018 were significantly less than 2017.
Foreign sales volume accounted for approximately 25.5% of volume and 27.6% of revenue for specialty petrochemical product sales during 2018 as compared to 20.4% of volume and 23.3% of revenue during 2017. The increase in foreign sales volume was



Petrochemical Product Sales

due to higher demand in the Canadian oils sands market. Excluding oil sands, foreign sales volumes in 2018 grew by 22% from 2017.
2016-2017

PetrochemicalSpecialty petrochemical product sales increased 17.5% from 2016 to 2017 due to an increase in total sales volume of 9.1% and an increase in average selling price of 7.7%. Our average selling price increased partly because a large portion of our sales are contracted with pricing formulas which are tied to prior month Natural Gas Liquid (NGL)Gasoline prices which is our primary feedstock. Average delivered feedstock price for 2017 was 17.8% higher than 2016. Additionally, prices for byproducts were about 17% higher than in 2016 which also contributed to higher overall selling prices. Prime product sales volume (total specialty petrochemical product sales volume less byproduct sales volume) increased 9.5% from 2016 to 2017 primarily due to higher demand across mostmany of our end-use markets. Sales to the Canadian oil sands market were down from 2016 due to the continued downturn in that market. Margins on our specialty petrochemical products continued to be negatively impacted by shortfall fees that we incurred due to feedstock purchases below minimum amounts as prescribed by our agreement with suppliers. The total dollar amount of the penalties in 2017 was approximately the same as in 2016.

Foreign sales volume accounted for approximately 20.4% of volume and 23.3% of revenue for specialty petrochemical product sales during 2017 as compared to 22.7% of volume and 26.3% of revenue during 2016. The decline in foreign sales volume was due to lower demand in the Canadian oils sands market. Excluding oil sands, foreign sales volumes in 2017 grew by 8.1% from 2016.

2015-2016

Petrochemical product sales decreased 18.4% from 2015 to 2016 due to a decrease in total sales volume of 12.1% and a decrease in average selling price of 7.2%.  Our average selling price decreased because a large portion of our sales are contracted with pricing formulas which are tied to prior month Natural Gas Liquid (NGL) prices which is our primary feedstock.  Our average selling prices for our non-formula priced customers also declined approximately 10.5% primarily due to competitive pressure on pricing.  Average delivered feedstock price for 2016 was 7.4% lower than 2015.  We also saw a significant decrease in our margin on byproduct sales from 2015 to 2016.  Prime product sales volume (total petrochemical product sales volume less byproduct sales volume) decreased 8.8% from 2015 to 2016 primarily due to lower demand in North America.  Margins on our petrochemical products were also negatively impacted by financial penalties that we incurred due to feedstock purchases below minimum amounts as prescribed by our agreement with suppliers.

Foreign sales volume accounted for approximately 22.7% of volume and 26.3% of revenue for petrochemical product sales during 2016 as compared to 25.2% of volume and 27.9% of revenue during 2015.

Processing Fees

2017-2018
Processing fee were approximately flat from 2017 to 2018.
2016-2017

Processing fees decreased 21.7% from 2016 to 2017 primarily due to a reduction in fees associated with a customer who reimbursed us for installation expenses plus a markup. We were successful in negotiating a contract extension with one of our processing customers whose contract was set to expire at the end of 2017.

2015-2016

Processing fees increased 51.1% from 2015 to 2016 primarily due to fees associated with a customer who reimbursed us for installation expenses plus a markup.

Cost of Sales(includes but is not limited to raw materials, total operating expense, natural gas, operating labor and transportation)

2017-2018
Cost of Sales increased 32.3% from 2017 to 2018 due to higher raw material costs, higher operating expense and the increase in sales volume. Our average delivered feedstock cost per gallon increased approximately 21% over 2017 and volume processed increased about 8%. We use natural gasoline as our feedstock which is the heavier liquid remaining after ethane, propane and butanes are removed from liquids produced by natural gas wells. The material is a commodity product in the oil/petrochemical markets and generally is readily available. The price of natural gasoline is well correlated with the price of crude oil. With the start up and stable operation of our Advanced Reformer unit we continue to convert the lower value components in our feed into higher value products, thereby allowing us to sell our byproducts at higher prices than would be realized without the Advanced Reformer unit.
2016-2017

Cost of Sales increased 15.8% from 2016 to 2017 primarily due to the increase in sales volume and higher raw material costs. Our average delivered feedstock cost per gallon increased 17.8% over 2016 and volume processed increased 10.0%. We use natural gasoline as feedstock which is the heavier liquid remaining after ethane, propane and butanes are
removed from liquids produced by natural gas wells. The material is a commodity product in the oil/petrochemical markets and generally is readily available.  The price of natural gasoline is correlated with the price of crude oil with an R-squared value of approximately 90%.  We expect our advanced reformer unit (Aromax® II) which is expected to start-up in the third quarter of 2018, will enable us to convert the less desirable components in our feed into higher value products, thereby allowing us to sell our byproducts at higher prices than are currently realized.

2015-2016

Cost of Sales decreased 11.7% from 2015 to 2016 primarily due to the decrease in sales volume.  Our average delivered feedstock cost per gallon decreased 7.4% over 2015 while volume processed decreased 10.9%.

Total Operating Expense(includes but is not limited to natural gas, operating labor, depreciation, and transportation)
2017-2018
Total Operating Expense increased 24.4% from 2017 to 2018 resulting in a $14.4 million increase 2017. The key drivers for the increase were transportation costs, operating labor and depreciation. Transportation costs increased due to higher sales volume, higher rail freight rates and other logistics costs. Operating labor costs were higher due to higher maintenance and contract labor costs primarily associated with the start-up of the Advanced Reformer unit, maintenance and repair costs associated with a toll processing unit and other maintenance activities. Approximately 12.8% of our labor costs were capitalized in 2018 primarily due to the construction of the Advanced Reformer unit; whereas, in 2017 approximately 28% was capitalized.

2016-2017We implemented a reorganization and workforce reduction at our Silsbee, Texas facility which reduced the workforce by about 20% at the end of 2018. We expect to realize approximately $2.5 million in annual cost savings as a result of this action. We took a charge of approximately $0.4 million for severance related to this action.

Natural gas expense increased 14.9% from 2017 to 2018 due to an increase in the average per unit cost and volume consumed. Consumption was greater than in 2017 both due to higher sales volume and inefficiencies related to the start-up and operation issues with the Advanced Reformer unit. The average price per MMBTU for 2018 was up about 3.8% from 2017 while volume consumed increased to approximately 1,684,000 MMBTU from about 1,509,000 MMBTU.
2016-2017
Total Operating Expense increased 0.3% from 2016 to 2017. Natural gas, labor, and transportation are the largest individual expenses in this category; however, not all of these increased.

Natural gas expense increased 48.8% from 2016 to 2017 due to an increase in the average per unit cost and volume consumed. The average price per MMBTU for 2017 was $3.24 whereas, for 2016 the average per unit cost was $2.61. Volume consumed increased to approximately 1,509,000 MMBTU from about 1,294,000 MMBTU.

Labor costs declined 3.0% from 2016 to 2017 despite a 3.8% increase in headcount from year end 2016 to year end 2017. Approximately 19.9% of our labor costs were capitalized in 2017 due to the construction of the advanced reformerAdvanced Reformer unit; whereas, in 2016 approximately 12.0% was capitalized.

Transportation costs were higher by 4.7% primarily due to the increase in sales volume.

2015-2016

Total Operating Expense increased 3.3% from 2015 to 2016.  Natural gas, labor, and transportation are the largest individual expenses in this category; however, not all of these increased.

Natural gas expense decreased 21.2% from 2015 to 2016 due to a decrease in the average per unit cost and volume consumed.  The average price per MMBTU for 2016 was $2.61 whereas, for 2015 the average per unit cost was $2.94.  Volume consumed decreased to approximately 1,294,000 MMBTU from about 1,402,000 MMBTU.

Labor costs declined 0.2% from 2015 to 2016.  Profit sharing distributions were lower and employee headcount decreased approximately 2.7% from year end 2015 to year end 2016.

Transportation costs were lower by 2.8% primarily due to the decrease in sales volume.

General and Administrative Expense

2017-2018
General and Administrative costs increased 11.4% from 2017 to 2018 primarily due to restructuring and severance costs in 2018. There were no restructuring and severance expenses in 2017.
2016-2017

General and Administrative costs increased 11.7% from 2016 to 2017 primarily due to an increase in property taxes because of the expiration of abatements. Group insurance and administrative labor costs also increased.

2015-2016

General and Administrative costs remained stable from 2015 to 2016 with less than a 1% increase.


Depreciation

2017-2018
Depreciation expense increased 41.6% or approximately $2.6 million from 2017 to 2018 primarily due to the start-up of the Advanced Reformer unit and the resulting increase of our depreciable base.
2016-2017

Depreciation expense increased 8.3% from 2016 to 2017 primarily due to 2016 capital expenditures increasing our depreciable base.

Capital Expenditures
2015-20162017-2018

Depreciation expense increased 29.9%Capital expenditures in 2018 declined $15.1 million from 2015 to 2016 primarily2017 mostly due to D Train coming online,the completion of the Advanced Reformer unit. See discussion under "Capital Resources and depreciation being recorded on itRequirements" below for a full year.

Capital Expenditures

more detail.
2016-2017

Capital expenditures increased 63.7% from 2016 to 2017. See discussion under "Capital Resources and Requirements" below for more detail.

2015-2016

Capital expenditures decreased 5.8% from 2015 to 2016. See discussion under "Capital Resources and Requirements" below for more detail.

Specialty Wax Segment

  2017  2016  Change  %Change 
  (thousands of dollars) 
Product Sales $23,819  $20,319  $3,500   17.2%
Processing Fees  10,943   10,052   891   8.9%
Gross Revenue $34,762  $30,371  $4,391   14.5%
                 
Volume of wax sales (thousand pounds)  35,393   33,891   1,502   4.4%
                 
  Cost of Sales $34,369  $26,338  $8,031   30.5%
  Gross Margin  1.1%  13.3%  (12.2%)  (91.5%)
  General & Administrative Expense  4,931   4,818   113   2.3%
  Depreciation and Amortization*  4,589   3,908   681   17.4%
  Capital Expenditures $14,015  $17,547  (3,532)  (20.1%)
 2018
 2017
 Change
 %Change
 (thousands of dollars)
Product Sales$27,017
 $23,819
 $3,198
 13.4 %
Processing Fees11,236
 10,943
 293
 2.7 %
Gross Revenue$38,253

$34,762

$3,491
 10.0 %
        
Volume of wax sales (thousand pounds)37,264
 35,393
 1,871
 5.3 %
        
Cost of Sales36,318
 34,369
 1,949
 5.7 %
Gross Margin5.1% 1.1% 4.0% 363.6 %
General & Administrative Expense5,053
 4,931
 122
 2.5 %
Depreciation and Amortization*5,376
 4,589
 787
 17.1 %
Capital Expenditures$2,854
 $14,015
 $(11,161) (79.6)%
*Includes $5,285 and $4,503 for 2017 and 2016, respectively, which is included in cost of sales
 2017
 2016
 Change
 %Change
 (thousands of dollars)
Product Sales$23,819
 $20,319
 $3,500
 17.2 %
Processing Fees10,943
 10,052
 891
 8.9 %
Gross Revenue$34,762

$30,371

$4,391
 14.5 %
        
Volume of wax sales (thousand pounds)35,393
 33,891
 1,502
 4.4 %
        
Cost of Sales34,369
 26,338
 8,031
 30.5 %
Gross Margin1.1% 13.3% (12.2)% (91.5)%
General & Administrative Expense4,931
 4,818
 113
 2.3 %
Depreciation and Amortization*4,589
 3,908
 681
 17.4 %
Capital Expenditures$14,015
 $17,547
 $(3,532) (20.1)%
*Includes $4,503 and $3,828 for 2017 and 2016, respectively, which is included in cost of sales

  2016  2015  Change  %Change 
  (thousands of dollars) 
Product Sales $20,319  $15,506  $4,813   31.0%
Processing Fees  10,052   8,237   1,815   22.0%
Gross Revenue $30,371  $23,743  $6,628   27.9%
                 
Volume of wax sales (thousand pounds)  33,891   24,268   9,623   39.7%
                 
  Cost of Sales $26,338  $19,519  $6,819   34.9%
  Gross Margin  13.3%  17.8%  (4.5%)  (25.3%)
  General & Administrative Expense  4,818   4,138   680   16.4%
  Depreciation and Amortization*  3,908   4,550   (642)  (14.1%)
  Capital Expenditures $17,547  $6,889  $10,658   154.7%
*Includes $3,828 and $4,464 for 2016 and 2015, respectively, which is included in cost of sales



Product Sales

2017-2018
Product sales revenue increased 13.4% and product sales volume increased 5.3% from 2017 to 2018 primarily due to higher on-purpose PE wax sales which benefited from continued growth in growth in our high value waxes. Polyethylene wax sales saw volume increases of 3.5% and revenue from polyethylene wax increased approximately 15.4% both as a result of greater sales volume and a higher value sales mix. Average wax sales price was approximately 9% higher in 2018 compared to 2017.
2016-2017

Product sales revenue increased 17.2% and product sales volume increased 4.4% from 2016 to 2017 primarily due to on-purpose PE wax sales which we were distributing in Latin America for a third party as well as, significant growth in our high value waxes. Polyethylene wax sales saw volume increases of 1.3% and revenue increases of 12.8%. 

Processing Fees
2015-20162017-2018

Product sales revenueProcessing fees increased 31.0% and product sales volume increased 39.7%2.7% from 20152017 to 2016.  Polyethylene wax sales saw volume increases of approximately 53.8%; however, due to competitive situations, a soft market, and to minimize finished product inventories, revenue from these sales only increased 12.1%.  Other wax based product sales increased from 2015 to 20162018 primarily due to on-purpose PE wax salesgreater revenues from hydrogenation/distillation unit. Growth in custom processing revenue in 2018 continued to be hampered by operational and reliability issues especially related to the hydrogenation/distillation unit which we distributedstarted up in Latin America for a third party at lower margins.    

Processing Feesthe second half of 2017.

2016-2017

Processing fees increased 8.9% from 2016 to 2017 primarily due to the addition of new customers and an increase in existing customer volumes. Growth was limited by significant operational issues in existing equipment and in the new hydrogenation/distillation unit.

Cost of Sales
2015-20162017-2018

Processing feesCost of Sales increased 22.0%5.7% from 20152017 to 2016 primarily2018 due to increases in labor, maintenance, utilities and depreciation which were partially offset by lower wax material costs.   Labor increased approximately due to increased overtime and the addition of personnel to support the new customershydrogenation/distillation unit which came on line in 2017 as well as to support other custom processing projects. Maintenance costs increased primarily as a result of the start-up of hydrogenation/distillation and an increasethe related operating issues in existing customer volumes.

Cost of Sales

2018. Utility costs increased mainly due to greater consumption.
2016-2017

Cost of Sales increased 30.5% from 2016 to 2017 due to increases in material cost, labor, freight, equipment maintenance, and natural gas utilities. Material cost increased 51.2% primarily due to material costs associated with the on-purpose PE wax sales we distributed into Latin America for a third party. Labor increased approximately 22.4% due to increased overtime and the addition of personnel to operate the new hydrogenation/distillation unit when it came online in 2017. Freight increased approximately 112.5% due to the increase in shipments and a change in our shipping terms. We now ship most products with destination terms. Equipment maintenance increased 54.0% primarily due to the addition of B Plant and the introduction of new custom processing projects. Natural gas utilities increased 71.6% due to an increase in the per unit cost and in volume consumed because of B Plant and the new hydrogenation/distillation unit.

2015-2016

Cost of Sales increased 34.9% from 2015 to 2016 due to increases in labor, freight, utilities and storage partially driven by the increased on-purpose polyethylene wax distributed in Latin America.  Labor increased approximately 16.3% due to increased overtime and addition of personnel to produce more product in B Plant and ensure we have personnel trained to operate the new hydrogenation/distillation project when it starts up in early 2017.  Freight increased approximately 79.1% due to the increase in shipments and a change in our shipping terms.  Utilities increased approximately 85.4% due to expenses associated with B plant.  Storage fees increased approximately 168.9% due to the increase in inventory which is stored offsite in third-party warehouses.  We were able to find an alternative storage location that is expected to reduce our storage fees in 2017.



General and Administrative Expense

2017-2018
General and Administrative costs increased 2.5% from 2017 to 2018.
2016-2017

General and Administrative costs increased 2.3% from 2016 to 2017 primarily due to an increase in sales personnel, property taxes, and property insurance due to the addition of B Plant.

Depreciation and Amortization
2015-20162017-2018

GeneralDepreciation and Administrative costsamortization increased 16.4%17.1% from 20152017 to 20162018 primarily due to an increasestart up of the hydrogenation/distillation project in sales personnel, accounting fees, legal fees, management fees, miscellaneous employee expenses, travel, and property taxes.

Depreciation and Amortization

the second half of 2017.
2016-2017

Depreciation and amortization increased 17.4% from 2016 to 2017 primarily due to the addition of B Plant and the hydrogenation/distillation project coming online in 2017.

Capital Expenditures
2015-20162017-2018

Depreciation and amortizationCapital expenditures decreased 14.1% from 2015approximately $14.0 million to 2016$2.9 million or 79.6% from 2017 to 2018 primarily due to somethe completion and of the assets which were near end of life at purchase becoming fully depreciated.  Most of the capital expenditures during 2016 were being recorded to constructionhydrogenation/distillation project in progress for which depreciation will begin when complete.

Capital Expenditures

2017.
2016-2017

Capital expenditures decreased 20.1% from 2016 to 2017 primarily due to the completion of the hydrogenation/distillation project in 2017.

2015-2016

Capital expenditures increased 154.7% from 2015 to 2016 primarily due to expenditures for the hydrogenation/distillation project, B Plant purchase and various other smaller projects.

Corporate Segment

  2017  2016  Change  %Change 
  (in thousands)    
General & Administrative Expense $7,413  $6,445  $968   15.0%
Depreciation  62   43   19   44.2%
Equity in losses of AMAK  4,261   1,479   (2,782)  188.1%
Gain from additional equity issuance by AMAK  -   (3,168)  (3,168)  (100.0%)

 2016  2015  Change  %Change 2018
 2017
 Change
 %Change
 (in thousands)    (in thousands)  
General & Administrative Expense $6,445  $7,011  $(566)  (8.1%)$8,275
 $7,413
 $862
 11.6 %
Depreciation  43   25   18   72.0%50
 62
 $(12) (19.4)%
Equity in losses of AMAK  1,479   5,325   (3,846)  (72.2%)901
 4,261
 $(3,360) (78.9)%
Gain from additional equity issuance by AMAK  (3,168)  -   (3,168)  100.0%


 2017
 2016
 Change
 %Change
 (in thousands)  
General & Administrative Expense$7,413
 $6,445
 $968
 15.0 %
Depreciation62
 43
 $19
 44.2 %
Equity in losses of AMAK4,261
 1,479
 $2,782
 188.1 %
Gain from additional equity issuance by AMAK
 (3,168) $3,168
 (100.0)%
General and Administrative Expenses

2017-2018
General corporate expenses increased from 2017 to 2018 primarily due to restructuring and severance expenses, offset by the cancellation and reversal of stock compensation expense and other post retirement benefits awarded to Mr. Hatem El Khalidi. See Note 14 for further discussion.
2016-2017

General corporate expenses increased from 2016 to 2017 primarily due to an increase in officer compensation, accounting fees, and legal fees. Officer compensation increased in 2017 due to the addition of an officer in late 2016 and and an accrual for executive bonuses. Accounting and legal fees increased due to additional time required for restatements issues and other matters.

2015-2016

General corporate expenses decreased from 2015 to 2016 primarily due to a decrease in officer compensation because targets were not met; therefore, no executive bonuses were awarded.  This decrease of approximately $0.9 million was partially offset by increases in directors' fees, post-retirement benefits, and accounting and audit fees.  Directors' fees increased approximately $.03 million because of the addition of two directors and a restricted stock grant to directors.  Post-retirement benefits increased approximately $0.2 million due to an agreement with the former CEO to provide health benefits.  Accounting and audit fees increased approximately $0.1 million due to costs associated with our investment in AMAK, the retention of a new internal audit firm, and costs associated with B Plant valuation.

Equity in Losses of AMAK/Gain on Equity Issuance of AMAK

2017-2018
Equity in Losses of AMAK decreased 78.9% from 2017 to 2018 due to a number of reasons as discussed below.
The mine was fully operational in 2018 as compared to operating on an improving basis throughout 2017. In 2017 costs were increased as the mine was not operating at full capacity. Metal prices remained strong in 2018.
Shipments increased 105% from 2017 to 2018 as indicated in the table below. AMAK volumes in dry metric tons (dmt) for 2018 and 2017 were as follows:
 2018
 2017
 Variance
Ore tons processed699,885
 385,495
 314,390
Concentrate to the port     
Copper26,070
 15,326
 10,744
Zinc31,989
 16,606
 15,383
 58,059

31,932

26,127
      
Shipments     
Copper26,286
 13,940
 12,346
Zinc31,272
 14,080
 17,192
 57,558

28,020

29,538
2016-2017

Equity in Losses of AMAK increased 188.1% from 2016 to 2017 due to a number of reasons as discussed below.

The mine operated on an improving basis throughout 2017 while operations were closed for almost all of 2016. However, in 2017 because the mine was not operating at full capacity but was working toward that goal, costs increased. Also, 2016 was positively affected by the settlement from certain liabilities. Metal prices were strong in 2017 with zinc prices hitting a ten year high during the year.   There were no unusual items in 2017.

Shipments increased 77% from 2016 to 2017 as indicated in the table below.  AMAK volumes in dry metric tons (dmt) for 2017 and 2016 were as follows:


  2017  2016  Variance 
Ore tons processed
  385,495   -   385,495 
Concentrate to the port
            
  Copper  15,326   -   15,326 
  Zinc  16,606   -   16,606 
   31,932   -   31,932 
             
Shipments            
   Copper  13,940   -   13,940 
   Zinc  14,080   15,845   (1,765)
   28,020   15,845   12,175 


2015-2016

Equity in Losses of AMAK decreased from 2015 to 2016 primarily due to a settlement which was reached with the former operator of the AMAK mining facility.  During 2016 AMAK reached the settlement which included a reduction in previously accrued operating expenses of approximately $17.4 million.  We also recognized a gain on our investment in AMAK stemming from the July 2016 issuance of additional shares to Arab Mining Co.  The settlement, along with the gain, more than offset AMAK's 2016 operating losses (please see Note 11 to the consolidated financial statements for the impact on our statements).

In November 2015 the decision was made to temporarily close the mine and to terminate the contract with the operator.  This allowed AMAK to preserve asset value while the mill and underground assets were refurbished and equipment upgrades were installed.  Additionally in November 2015, AMAK received formal approval for new licenses that included an additional 151 square kilometers (km2) of territory close to AMAK's prior 44 km2 mine.  The additional territory comprised the Guyan and Qatan exploration licenses covering 151 km2, and within the Guyan exploration license, a 10 km2 mining lease which has potential for significant gold recovery.

Renovation and refurbishment work was completed and the mine began zinc and copper production in December 2016.  In addition, processing of the gold-bearing waste dumps from historical mining at the Guyan mining license area was initiated and limited amounts of gold produced.  An extensive exploration program for the rest of Guyan mining lease was initiated with some encouraging results: a JORC compliant Mineral Resource Estimate was completed in May 2017, with an additional 8,000 meters of drilling in the area expected in 2018.  A systematic program of infill drilling and exploration to extend the overall life of the copper and zinc mine begun in 2016 has resulted in updated Mineral Resource Estimates.  Drilling will continue to further enhance resources.

Since the mine was not operating during 2016, there were only two shipments of zinc during the first quarter of 2016 from inventory that was on hand at the end of 2015.  Approximately 16,000 dry metric tons were shipped.

Capital Resources and Requirements
2017-2018
Capital expenditures decreased 58% from 2017 to 2018. The majority of the decrease was due to completion of the Advanced Reformer unit. During 2018 we expended approximately $14.9 million to complete the Advanced Reformer unit which includes $1 million insurance deductible related to the February 2018 fire and $3 million for the catalyst replacement in December 2018, $1.3 million for a rail spur addition and $0.5 million for a truck loading rack.

2016-2017

Capital expenditures increased 27.4% from 2016 to 2017. The majority of the increase was due to the construction projects for the hydrogenation/distillation unit and the advanced reformerAdvanced Reformer unit. During 2017 we expended $10.8 million on the hydrogenation/distillation project, $0.9 million to upgrade B Plant, $32.5 million to construct the advanced reformerAdvanced Reformer unit, $1.9 million for railspur addition, $1.0 million for additional tankage and upgrades to existing tankage, $0.9 million for transport trucks, and $3.7 million on various plant improvements and equipment.

2015-2016

Capital expenditures increased 29.6% from 2015 to 2016.  During 2016 we expended $15.5 million on the hydrogenation/distillation project, $3.9 million to purchase and upgrade the BASF facility, $11.6 million to begin construction on our advanced reformer unit, $1.9 million for tank farm improvements, $1.2 million for high purity hexane production, $0.8 million for cooling tower construction, $0.6 million for transport trucks, $0.5 million for loading rack expansion capabilities, and $4.5 million on various facility improvements and equipment.

At December 31, 2017,2018, there was approximately $25.0$18 million available on the Company's line of credit. We believe that operating cash flows along with credit availability will be sufficient to finance our 20182019 operations and capital expenditures.

The table below summarizes the following contractual obligations of the Company:

  Payments due by period 
Contractual Obligations
 Total  
Less than
1 year
  1-3 years  
3-5 years
  
More than 5 years
 
  (thousands of dollars) 
Operating Lease Obligations $17,779  $3,393  $6,591  $4,618  $3,177 
Purchase Obligations  3,580   3,580   -   -   - 
Long-Term Debt Obligations  99,583   8,333   91,250   -   - 
Total $120,942  $15,306  $97,841  $4,618  $3,177 

 Payments due by period
Contractual ObligationsTotal
 
Less than
 1 year

 1-3 years
 3-5 years
 More than 5 years
 (thousands of dollars)
Operating Lease Obligations$18,131
 $3,670
 $7,001
 $5,395
 $2,065
Purchase Obligations124
 124
 
 
 
Long-Term Debt Obligations103,312
 4,375
 98,937
 
 
Total$121,567

$8,169

$105,938

$5,395

$2,065
The majority of our operating lease obligations are for railcars as discussed in Note 1514 of the Notes to Consolidated Financial Statements. Purchase obligations are primarily related to commitments for our capital construction projects. The anticipated source of funds for payments due within three years that relate to contractual obligations is from a combination of continuing operations supplemented with borrowings under our credit facility.



Impact of Inflation

Our results of operations and financial condition are presented based on historical cost. While it is difficult to accurately measure the impact of inflation, we do not believe the overall effects of inflation, if any, on our results of operations and financial condition have been material.

Investment in AMAK

Information concerning our investment in AMAK is set forth in Note 1110 of the Notes to Consolidated Financial Statements.

New Accounting Standards

In May 2014 the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, 2014-9, Revenue from Contracts with Customers ("ASU 2014-09"2014-9"). ASU 2014-092014-9 supersedes the revenue recognition requirements of FASB Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition and most industry-specific guidance throughout the Accounting Standards Codification, resulting in the creation of FASB ASC Topic 606, Revenue from Contracts with Customers. ASU 2014-092014-9 requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. This ASU provides alternative methods of retrospective adoption and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. The Company completed its assessment of the impact of the adoption of ASU 2014-092014-9 across all revenue streams. This included reviewing current accounting policies and practices to identify potential differences that would result from applying the requirements under the new standard. We completed contract reviews and validated results of applying the new revenue guidance.  We adopted ASU 2014-09 on January 1, 2018, using the modified retrospective approach which will be fully presented in our Quarterly Report on Form 10-Q for the three months ended March 31, 2018.  Based on the completed analysis, we determined that the adjustment will not have a material impact on the consolidated financial statements.

In November 2015 the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxesguidance (Note 2). The new standard eliminates the current requirement for organizations to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, organizations will be required to classify all deferred tax assets and liabilities as noncurrent. The amendments are effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The Company implemented ASU 2015-17 by classifying all of it deferred tax assets (liabilities) as noncurrent on the December 31, 2017 Balance Sheet, see Note 17.

See Revenue Recognition policy note.
In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), to. This update will increase transparency and comparability among organizations by recognizing all lease transactions (with terms in excess of 12 months)assets and lease liabilities on the balance sheet as a lease liability and a right-of-use asset (as defined). The ASUdisclosing key information about leasing arrangements. This update is effective for fiscal yearsannual and interim reporting periods beginning after December 15, 2018, including interim periods within those fiscal years, with earlier applicationyears. Early adoption is permitted. Upon adoption, the lessee will apply the new standard retrospectively to all periods presented or retrospectively using a cumulative effect adjustment in the year of adoption.  The Company has several lease agreements for which the amendments will require the Company to recognize a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and does not expect to early adopt. As permitted by the amendments, the Company is anticipating electing an accounting policy to not recognize lease assets and lease liabilities for leases with a term of twelve months or less. The Company is currently in the process of fully evaluating the amendments and will subsequently implement new processes.  In addition, the Company will change its current accounting policies to comply with the amendments with such changes as mentioned above.

In March 2016July 2018, the FASB issued ASU No. 2016-09, Compensation—Stock Compensation (Topic 718):2018-11, Targeted Improvements to Employee Share-Based Payment AccountingASC 842, Leases.  ASU 2018-11 provided entities with an alternative modified transition method to elect not to recast the comparative periods presented when adopting ASC 842. The new standard provides a number of optional practical expedients in transition. The Company expects to elect: (1) the ‘package of practical expedients’, which will reduce complexity inpermits it not to reassess under the new standard its prior conclusions about lease identification, lease classification, and initial direct costs and (2) the use-of-hindsight. In addition, the new standard provides practical expedients for an entity’s ongoing accounting standards relatedthat the Company anticipates making, such as the (1) the election for certain classes of underlying asset to share-based payment transactions, including, among others, (1) accountingnot separate non-lease components from lease components and (2) the election for income taxes, (2) classification of excess tax benefits on the statement of cash flow, (3) forfeitures, and (4) statutory tax withholding requirements.  The ASU is effectiveshort-term lease recognition

exemption for annual reporting periods beginning on or after December 15, 2016, and interim periods within those annual periods.all leases that qualify. The Company implemented the amendmentswill adopt ASU 842 as of January 1, 2017.2019, using the alternative modified transition method. In preparation of adopting ASC 842, the Company is implementing additional internal controls to enable future preparation of financial information in accordance with ASC 842. The stock based compensation planCompany has also substantially completed its evaluation of the impact on the Company’s lease portfolio. The Company believes the largest impact will be on the consolidated balance sheets for the accounting of facilities-related leases, which represents a majority of its operating leases it has entered into as a lessee. These leases will be recognized under the new standard as right of use assets (“ROU”) operating lease liabilities. The Company will also be required to provide expanded disclosures for its leasing arrangements. As of December 31, 2018, the Company had approximately $18.1 million of undiscounted future minimum operating lease commitments that are not historically generated material amountsrecognized on its consolidated balance sheets as determined under the current standard. For a lessee, the results of excess tax benefits or deficiencies and, therefore, thereoperations are not expected to significantly change after adoption of the new standard.  While substantially complete, the Company is no material change
still in the Company's financial position or resultsprocess of operation, as a resultfinalizing its evaluation of adopting this Update. For additional informationthe effect of ASU 842 on the stock-based compensation plan, see Note 16.Company’s financial statements and disclosures, including the determination of the Company’s incremental borrowing rate for each of the operating leases to estimate the interest rate we would have to pay to borrow on a collateralized basis over a similar term for an amount equal to the lease payments. The Company will finalize its accounting assessment and quantitative impact of the adoption during the first quarter of fiscal year 2019.

In January 2017 the FASB issued ASU No. 2017-04, 2017-4, Intangibles – Goodwill and Other (Topic 350). The amendments in ASU 2017-042017-4 simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, under these amendments, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting unit. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The2017.The amendments also eliminate the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The Company has goodwill from prior business combination and performs an annual impairment test or more frequently if changes or circumstances occur that would more-likely-than-not reduce the fair value of the reporting unit below its carrying value. During the year ended December 31, 2017,2018, the Company performed its impairment assessment and determined the fair value of the aggregated reporting units exceed the carrying value, such that the Company's goodwill was not considered impaired. Although the Company cannot anticipate future goodwill impairment assessments, based on the most recent assessment, it is unlikely that an impairment amount would need to be calculated and, therefore, the Company does not anticipate a material impact from these amendments to the Company's financial position and results of operations. The current accounting policies and processes are not anticipated to change, except for the elimination of the Step 2 analysis.
In February 2018 the FASB issued ASU No. 2018-02, 2018-2, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. ASU 2018-022018-2 was issued to address the income tax accounting treatment of the stranded tax effects within other comprehensive income due to the prohibition of backward tracing due to an income tax rate change that was initially recorded in other comprehensive income due to the enactment of the Tax Cuts and Jobs Act (TCJA) on December 22, 2017, which changed the Company's income tax rate from 35% to 21%. The amendments to the ASU changed US GAAP whereby an entity may elect to reclassify the stranded tax effect from accumulated other comprehensive income to retained earnings. The amendments of the ASU may be adopted in total or in part using a full retrospective or modified retrospective method. The amendments of the ASU are effective for periods beginning after December 15, 2018. Early adoption is permitted.The Company believes there will be no material impact to the consolidated financial statements as a result of this update.
In June 2018, the FASB issued ASU No. 2018–07, Improvements to Nonemployee Share–Based Payment Accounting. ASU 2018–07 simplifies the accounting for share–based payments to nonemployees by aligning it with the accounting for share–based payments to employees, with certain exceptions. The amendments in this ASU are effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. The Company is assessing the effect of ASU 2018-022018–02 on its consolidated financial statements.

Critical Accounting Policies

Our consolidated financial statements are based on the selection and application of significant accounting policies. The preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of net sales, expenses and allocated charges during the reported period. Actual results could differ from those estimates. However, we are not currently aware of any reasonably likely events or circumstances that would result in materially different results.

We believe the following accounting policies and estimates are critical to understanding the financial reporting risks present currently. These matters, and the judgments and uncertainties affecting them, are essential to understanding our reported results. See Note 2 to the Notes to the Consolidated Financial Statements for further information.

Inventories

Finished products and feedstock are recorded at the lower of cost, determined on the first-in, first-out method (FIFO)("FIFO"); or market for SHR. For TC, inventory is recorded at the lower of cost or market as follows: (1) raw material cost is calculated using the weighted-average cost method and (2) product inventory cost is calculated using the specific cost method. See Note 87 to the Notes to the Consolidated Financial Statements for more information.

Beginning January 1, 2017, due to expansion of our plant assets at SHR and TC, we began inventorying spare parts for the repair and maintenance of our plant, pipeline and equipment.

Revenue recognition
The Company adopted Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 606 ("ASC 606"), Revenue from Contracts with Customers, and its amendmentswith a date of the initial application of January 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below. ASC 606 outlines a single comprehensive model for an entity to use in accounting for revenue arising from all contracts with customers, except where revenues are in scope of another accounting standard. ASC 606 superseded the revenue recognition requirements in ASC Topic 605, "Revenue Recognition", and most industry specific guidance. ASC Topic 606 sets forth a five-step model for determining when and how revenue is recognized. Under the model, an entity is required to recognize revenue to depict the transfer of goods or services to a customer at an amount reflecting the consideration it expects to receive in exchange for those goods and services. ASC 606 also requires certain additional revenue-related disclosures.

Revenue recognitionadopting the new guidance on the date of initial application. Use of the modified retrospective approach means the Company's comparative periods prior to initial application are not restated. The initial application was applied to all contracts at the date of the initial application.   The Company has determined that the adjustments using the modified retrospective approach did not have a material impact on the date of the initial application along with the disclosure of the effect on prior periods.

Accounting Policy

Beginning on January 1, 2018, revenue is measured based on a consideration specified in a contract with a customer. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer. In evaluating when a customer has control of the asset we primarily consider whether the transfer of legal title and physical delivery has occurred, whether the customer has significant risks and rewards of ownership, and whether the customer has accepted delivery and a right to payment exists. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction, that are collected by the Company from a customer, are excluded from revenue. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in cost of product sales and processing. The Company does not offer material rights of return or service-type warranties.
For 2017 the Company recognized revenue according to FASB ASC Topic 605 ("ASC 605"), "Revenue is recorded whenRecognition", when: (1) the customer acceptsaccepted delivery of the product and title hashad been transferred or when the service iswas performed and we havethe Company had no significant obligations remaining to be performed; (2) a final understanding as to specific nature and terms of the agreed upon transaction hashad occurred; (3) price iswas fixed and determinable; and (4) collection iswas assured. For our productProduct sales generally met these criteria, are generally met, and revenue iswas recognized, when the product iswas delivered or title iswas transferred to the customer. Sales arerevenue was presented net of discounts, allowances, and sales taxes. Freight costs billed to customers arewere recorded as a component of revenue.  For our custom processing we recognize revenue when the service has been provided to the customer. Revenues received in advance of future sales of products or prior to the performance of services arewere presented as deferred revenues. Shipping and handling costs were classified as cost of product sales and processing and were expensed as incurred.
Nature of goods and services

The following is a description of principal activities – separated by reportable segments – from which the Company generates its revenue. For more detailed information about reportable segments, disaggregation of revenues, and contract balance disclosures, see Note 17.

Specialty petrochemical segment
The specialty petrochemical segment of the Company produces eight high purity hydrocarbons and other petroleum based products including isopentane, normal pentane, isohexane and hexane. These products are used in the production of polyethylene, packaging,

polypropylene, expandable polystyrene, poly-iso/urethane foams, crude oil from the Canadian tar sands, and in the catalyst support industry. SHR's specialty petrochemical products are typically transported to customers by rail car, tank truck, iso-container and ship.
Product Sales - The Company sells individual (distinct) products to its customers on a stand-alone basis (point-of-sale) without any further integration. There is no significant modification of any one or more products sold to fulfill another promised product or service within any of the Company's product sale transactions. The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected 30 to 60 days subsequent to point of sale.
Processing Fees - The Company's services consist of processing customer supplied feedstocks into custom products including, if requested, services for forming, packaging, and arranging shipping. Pursuant to Tolling Agreements the customer retains title to the feedstocks and processed products. The performance obligation in each Tolling Agreement transaction is the processing of customer provided feedstocks into custom products and is satisfied over time.   The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.
Specialty Wax segment
The specialty wax segment of the Company manufactures and sells specialty polyethylene and poly alpha olefin waxes and also provides custom processing services for customers.
Product Sales - The Company sells individual (distinct) products to its customers on a stand-alone basis (point-of-sale) without any further integration. There is no significant modification of any one or more products sold to fulfill another promised product or service within any of the Company's product sale transactions. The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.
Processing Fees - The Company's promised services consist of processing customer supplied feedstocks into custom products including, if requested, services for forming, packaging, and arranging shipping. Pursuant to Tolling Agreements and Purchase Order Arrangements, the customer typically retains title to the feedstocks and processed products. The performance obligation in each Tolling Agreement transaction and Purchase Order Arrangement is the processing of customer provided feedstocks into custom products and is satisfied over time.   The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.
Long-lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable from estimated future undiscounted cash flows. If the estimated future undiscounted cash flows are less than the carrying value of the assets, we calculate the amount of impairment if the carrying value of the long-lived assets exceeds the fair value of the assets. Our long-lived assets include our specialty petrochemical facility and our specialty synthetic wax facility.

Our specialty petrochemical facility and specialty synthetic wax facility are currently our revenue generating assets. The facilities were in full operation at December 31, 2017.

2018.
Goodwill and other intangible assets

Goodwill and indefinite-lived intangible assets are tested for impairment at least annually; however, these tests are performed more frequently when events or changes in circumstances indicate that the asset may be impaired. Impairment exists when carrying value exceeds fair value.

Definite-lived intangible assets are being amortized using discounted estimated future cash flows over the term of the related agreements. We continually evaluate the reasonableness of the useful lives of these assets. Once these assets are fully amortized, they will be removed from the consolidated balance sheets.

See Note 109 to the Notes to the Consolidated Financial Statements for additional information.

Investment in AMAK

We account for our investment in AMAK using the equity method of accounting under which we record in income our share of AMAK's income or loss for each period. The amount recorded is also adjusted to reflect the amortization of certain differences between the basis in our investment in AMAK and our share of the net assets of AMAK as reflected in AMAK's financial statements. Any proceeds received from or payments made to AMAK are recorded as decreases or increases in the balance of our investment. See Note 1110 to the Notes to the Consolidated Financial Statements.

We assess our investment in AMAK for impairment when events are identified, or there are changes in circumstances that may have an adverse effect on the fair value of the investment. We consider recoverable ore reserves and the amount and timing of the cash flows to be generated by the production of those reserves, as well as, recent equity transactions within AMAK. Factors which

may affect carrying value include, but are not limited to, mineral prices, capital cost estimates, equity transactions, the estimated operating costs of any mines and related processing, ore grade and related metallurgical characteristics, the design of any mines and the timing of any mineral production. There are no assurances that we will not be required to take a material write-down of any of our mineral properties.

Environmental Liabilities

Our operations are subject to the rules and regulations of the TCEQ which inspects the facilities at various times for possible violations relating to air, water and industrial solid waste requirements. As noted in Item 1. Business,, evidence of groundwater contamination was discovered at SHR in 1993. The recovery process, initiated in 1998, is proceeding as planned and is expected to continue for many years. See Note 1514 to the Notes to the Consolidated Financial Statements.


Share-Based Compensation

We expense the cost of director and employee services received in exchange for an award of equity instruments based on the grant date fair value of such instruments. For options we use the Black-Sholes model to calculate the fair value of the equity instrument on the grant date. See Note 1615 to the Notes to the Consolidated Financial Statements.

Off Balance Sheet Arrangements

Off balance sheet arrangements as defined by the SEC means any transaction, agreement or other contractual arrangement to which an entity unconsolidated with the registrant is a party, under which the registrant has (i) obligations under certain guarantees or contracts, (ii) retained or contingent interest in assets transferred to an unconsolidated entity or similar arrangements, (iii) obligations under certain derivative arrangements, and (iv) obligations arising out of a material variable interest in an unconsolidated entity. Our guarantee for AMAK's debt is considered an off balance sheet arrangement. Please see further discussion under "Investment in AMAK" in Item 1. Business.

Income Taxes

In determining our income tax provision, we assess the likelihood our deferred tax assets will be recovered through future taxable income. Based on this assessment, a valuation allowance against all or a portion of our deferred tax asset that will, more likely than not, be realized. If these estimates, assumptions, or actual results of operations change in the future, we may reverse the valuation allowance against deferred tax assets. Income tax liabilities are determined based on judgment and estimates assuming it is more likely than not that the position will be sustained upon examination by a taxing authority. See Note 1716 to the Notes to the Consolidated Financial Statements.

On December 22, 2017, Public Law No. 115-97, also known as, the Tax Cuts and Jobs Act (TCJA)("TCJA") was enacted. The TCJA includesincluded a number of changes to existing U.S. tax laws that impactimpacted the Company, most notably a reduction of the U.S. federal corporate income tax rate from a maximum of 35 percent35% to a flat 21 percent21% for tax years effective January 1, 2018. The TCJA also implementsimplemented a territorial tax system, providesprovided for a one-time deemed repatriation tax on unrepatriated foreign earnings, eliminateseliminated the alternative minimum tax (AMT)("AMT"), makesmaking AMT credit carryforwards refundable, and permits the acceleration of depreciation for certain assets placed into service after September 27, 2017. In addition the TJCA createscreated prospective changes beginning in 2018, including repeal of the domestic manufacturing deduction, acceleration of tax revenue recognition, capitalization of research and development expenditures, additional limitations on executive compensation and limitations on the deductibility of interest.

The Company has elected to recognize the income tax effects of the TCJA in its financial statements in accordance with Staff Accounting Bulletin 118 (SAB 118), which provides guidance for the application of ASC Topic 740 Income Taxes, in the reporting period in which the TCJA was signed into law. Under SAB 118 when a Company does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the TCJA it will recognize provisional amounts if a reasonable estimate can be made. IfAfter the analysis, the Company did not identify any items for which the income tax effects of the TCJA have not been completed and a reasonable estimate cannotcould not be made then no impact is recognized for the effectdetermined as of the TCJA. SAB 118 permits an up to one year measurement period to finalize the measurement of the impact of the TCJA.

December 31, 2018.
The changes to existing U.S. tax laws as a result of the TCJA, which will have the most significant impact on the Company's federal income taxes are as follows:

Reduction of the U.S. Corporate Income Tax Rate - The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse. As a result of the reduction in the U.S. corporate income tax rate from 35% to 21% under the TCJA, the Company revalued its ending net deferred tax liabilities at December 31, 2017. The reduction in the corporate income tax rate resulted in the Company recording $10.3 million benefit from deferred taxes.taxes in the year ending December 31, 2017.

Acceleration of Depreciation - The Company recognized a provisional reduction to net deferred tax assets attributable to the accelerated depreciation for certain assets placed into service after September 27, 2017. This provisional adjustment resulted in an increase in income tax receivable of approximately $961,000.

Derivative Instruments

We periodically use financial commodity agreements to hedge the cost of natural gasoline, the primary source of feedstock, and natural gas used as fuel to operate our plant to manage risks generally associated with price volatility.  The commodity agreements are recorded in our consolidated balance sheets as either an asset or liability measured at fair value. Our commodity agreements are not designated as hedges; therefore, all changes in estimated fair value are recognized in cost of petrochemical product sales and processing$961,000 in the consolidated statements of income. Atyear ending December 31, 2017, we had no financial commodity agreements in place.2017.

On March 21, 2008, SHR entered into a pay-fixed, receive-variable interest rate swap agreement with Bank of America related to the $10.0 million term loan secured by plant, pipeline and equipment. The effective date of the interest rate swap agreement was August 15, 2008, and was terminated on December 15, 2017.  We received credit for payments of variable rate interest made on the term loan at the loan's variable rates, which are based upon the London InterBank Offered Rate (LIBOR), and paid Bank of America an interest rate of 5.83% less the credit on the interest rate swap.  We had originally designated the interest rate swap as a cash flow hedge under ASC Topic 815 (see Note 22); however, due to the new debt agreements associated with the Acquisition in 2014, we believed that the hedge was no longer entirely effective.  Due to the time required to make the determination and the immateriality of the hedge, we began treating the interest rate swap as ineffective as of October 1, 2014.  The fair value of the derivative liability associated with the interest rate swap at December 31, 2017, and 2016 totaled $0.0 million and $0.1 million, respectively.

We assessed the fair value of the interest rate swap using a present value model that includes quoted LIBOR rates and the nonperformance risk of the Company and Bank of America based on the Credit Default Swap Market (Level 2 of fair value hierarchy).  See Notes 5 and 22 to the Notes to the Consolidated Financial Statements.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk.

The market risk inherent in our financial instruments represents the potential loss resulting from adverse changes in interest rates, foreign currency rates and commodity prices. Our exposure to interest rate changes results from our variable rate debt instruments which are vulnerable to changes in short term United States prime interest rates. At December 31, 2018, 2017 2016 and 2015,2016, we had approximately $103.3 million, $99.6 million $84.0 million and $82.3$84.0 million, respectively, in variable rate debt outstanding, excluding deferred financing costs. A hypothetical 10% change in interest rates underlying these borrowings would result in annual changes in our earnings and cash flows of approximately $433,000, $405,000 $275,000 and $199,000$275,000 at December 31, 2018, 2017 and 2016, and 2015, respectively.

We do not view exchange rates exposure as significant and have not acquired or issued any foreign currency derivative financial instruments.

We purchase all of our raw materials, consisting of feedstock and natural gas, on the open market. The cost of these materials is a function of spotnon-formula market oil and gas prices. As a result, our revenues and gross margins could be affected by changes in the price and availability of feedstock and natural gas. As market conditions dictate, from time to time we engage in various hedging techniques including financial swap and option agreements. We do not use such financial instruments for trading purposes and are not a party to any leveraged derivatives. Our policy on such hedges is to buy positions as opportunities present themselves in the market and to hold such positions until maturity, thereby offsetting the physical purchase and price of the materials.

At the end of 2017,2018, market risk for 20182019 was estimated as a hypothetical 10% increase in the cost of natural gas and feedstock over the market price prevailing on December 31, 2017.2018. Assuming that 20182019 total specialty petrochemical product sales volumes stay at the same rate as 2017,2018, the 10% market risk increase will result in an increase in the cost of natural gas and feedstock of approximately $13.7$11.9 million in fiscal 2018.2019.

Item 8. Financial Statements and Supplementary Data.

The consolidated financial statements of the Company and the consolidated financial statement schedules, including the report of our independent registered public accounting firm thereon, are set forth beginning on Page F-1.



Item 9. Changes In and Disagreements with Accountants on Accounting and Financial Disclosure.

NoneNone.

Item 9A. Controls and Procedures.

(a)Disclosure Controls and Procedures.

We maintain disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e)) under the Securities Exchange Act of 1934, as amended ("Exchange Act") that are designed to provide reasonable assurance that the information that we are required to disclose in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and such information is accumulated and communicated to our management, including our Chief Executive Office and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. It should be noted that because of inherent limitations, our disclosure controls and procedures, however well designed and operated, can provide only reasonable, and not absolute, assurance that the objective of the disclosure controls and procedures are met.
As required by paragraph (b) of Rules 13a-15 and 15d-15 under the Exchange Act, our Chief Executive Officer, and Chief Financial Officer have evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded, as of the end of the period covered by this report, that our disclosure controls and procedures were effective at a reasonable assurance level to ensure that the information that we are required to disclose in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer as appropriate, to allow timely decisions regarding required disclosure because of the material weakness in our internal control over financial reporting described below.below.

(b)Management's Annual Report on Internal Control over Financial Reporting.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control over financial reporting is a process that is designed under the supervision of our Chief Executive Officer and Chief Financial Officer, and effected by our Board of Directors, management and other personnel, to provide assurance regarding financial reporting and the preparation of the financial statements for external purposes in accordance with accounting principles generally accepted in the United States. Our internal control of financial reporting includes those policies and procedures that:
·Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of our assets;
·Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with accounting principles generally accepted in the United States, and that receipts and expenditures recorded by us are being made only in accordance with authorizations of our management and Board of Directors; and

·Provide 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.
Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with accounting principles generally accepted in the United States, and that receipts and expenditures recorded by us are being made only in accordance with authorizations of our management and Board of Directors; and
Provide 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.
Internal control over financial reporting has inherent limitations. Internal control over financial reporting is a process that involves human diligence and compliance and is subject to lapses in judgment and breakdowns resulting from human failures. Internal control over financial reporting also can be circumvented by collusion or improper management override. Because of such limitations, there is a risk that material misstatements will not be prevented or detected on a timely basis by internal control over financial reporting. However, these inherent limitations are known features of the financial reporting process. Therefore, it is possible to design into the process safeguards to reduce, though not eliminate, this risk. 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 and procedures may deteriorate.
Management has conducted its evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2017,2018, based upon the framework in Internal Control – Integrated Framework (2013) by the Committee of Sponsoring Organizations of the Treadway Commission.  Management's assessment included an evaluation of the design of our internal control over financial reporting and testing the operating effectiveness of our internal control over financial reporting.  Management reviewed the results of the assessment with the Audit Committee of the Board of Directors.  Based on its assessment and review with the Audit Committee, management concluded that our internal control over financial reporting was effective as of December 31, 2017.2018.
(c)Attestation Report of the Registered Public Accounting Firm.

BKM Sowan Horan, LLP, an independent registered public accounting firm, has audited the consolidated financial statements included in this Annual Report on Form 10-K and, as part of their audit, has issued their report, included herein, on the effectiveness of our internal control over financial reporting.

(d) Remediation of Material Weakness in Internal Control Over Financial Reporting.

During the year ended December 31, 2016, management identified certain errors in the accounting for our investment in AMAK.  To remediate the material weakness, during 2017, we designed and implemented a comprehensive remediation plan to remediate the material weakness and generally strengthen our internal control over financial reporting.  During the fourth quarter of 2017, we successfully completed the testing necessary to conclude that the controls were operating effectively and have concluded that the material weakness has been remediated.

(e) Changes in Internal Control over Financial Reporting.

There have been no changes in our internal control over financial reporting during the fourth quarter of 20172018 that have materially affected, or are reasonable likely to materially affect, our internal control over financial reporting. From time to time, we make changes to our internal control over financial reporting that are intended to enhance its effectiveness and which do not have a material effect on our overall internal control over financial reporting.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

TheTo the Board of Directors and
Stockholders
of Trecora Resources

Opinion on Internal Control over Financial Reporting

We have audited Trecora Resources'Resources’ (the Company's)Company’s) internal control over financial reporting as of December 31, 2017,2018, based on criteria established in Internal Control—IntegratedControl-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2018, based on criteria established in Internal Control—IntegratedControl-Integrated Framework (2013) issued by COSO.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the balance sheets and the related statements of income, comprehensive income, stockholders'operations, stockholders’ equity, and cash flows of the Company, and our report dated March 12, 2018,15, 2019, expressed an unqualified opinion.

Basis for Opinion

The Company'sCompany’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management'sManagement’s Annual Report on Internal Control Over Financial Reporting.Reporting. Our responsibility is to express an opinion on the Company'sCompany’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. 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 audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company'scompany’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'scompany’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) 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 (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company'scompany’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.




/s/ BKM Sowan Horan, LLP
Addison, Texas
March 12, 2018



Item 9B. Other Information.

NoneNone.

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

Incorporated by reference from our Proxy Statement for our 20182019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the year ended December 31, 2017.

2018.
We have adopted a code of ethics entitled Standards of Business Conduct that applies to all of the Company's directors, officers and employees, including its principal executive officer, principal financial officer, principal accounting officer and controller, and to persons performing similar functions. A copy of the Standards of Business Conduct has been filed as an exhibit to this Annual Report on Form 10-K and is available on our website.  We will provide paper copies of the Standards of Business Conduct, free of charge upon written or oral request to Trecora Resources, P. O. Box 1636, Silsbee, TX  77656, (409) 385-8300. 

Item 11.  Executive Compensation.

Incorporated by reference from our Proxy Statement for our 20182019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the year ended December 31, 2017.2018.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Incorporated by reference from our Proxy Statement for our 20182019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the year ended December 31, 2017.2018.

Item 13. Certain Relationships, Related Transactions, and Director Independence.

Incorporated by reference from our Proxy Statement for our 20182019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the year ended December 31, 2017.2018.

Item 14. Principal Accounting Fees and Services.

Incorporated by reference from our Proxy Statement for our 20182019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the year ended December 31, 2017.2018.

PART IV

ITEM 15. Exhibits, Financial Statement Schedules.
(a)1. The following financial statements are filed with this Report:
Reports of Independent Registered Public Accounting Firm
Consolidated Balance Sheets dated December 31, 20172018 and 20162017
Consolidated Statements of Income for the three years ended December 31, 20172018
Consolidated Statement of Stockholders' Equity for the three years ended December 31, 20172018
Consolidated Statements of Cash Flows for the three years ended December 31, 20172018
Notes to Consolidated Financial Statements

2.    The following financial statement schedules are filed with this Report:
Schedule II -- Valuation and Qualifying Accounts for the three years ended December 31, 2017.2018.
3. The following financial statements are filed with this Report:
The financial statements of Al Masane Al Kobra Mining Company (AMAK) for the years ended December 31, 2018, 2017, 2016, and 2015,2016, required by Rule 3-09 of Regulation S-X.

4. The following documents are filed or incorporated by reference as exhibits to this Report. Exhibits marked with an asterisk (*) are filed herewith. Exhibits marked with a plus sign (+) are management contracts or a compensatory plan, contract or arrangement.

Exhibit
Number
Description
3(a)
-Amended and Restated Certificate of Incorporation of the Company as amended through the Certificate of Amendment filed with the Delaware Secretary of State on May 22, 2014Trecora Resources, (incorporated by reference to Exhibit 3(a)3.1 to the Company's QuarterlyCurrent Report on Form 10-Q for the quarter ended June 30, 20148-K filed on May 21, 2018 (File No. 001-33926))
3(b)
-Amended and Restated Bylaws of the Company dated August 1, 2014Trecora Resources (incorporated by reference to Exhibit 3(b)3.2 to the Company's QuarterlyCurrent Report on Form 10-Q for the quarter ended June 30, 20148-K filed on May 21, 2018 (File No. 001-33926))
10(a)*+
-Retirement Awards Program dated January 15, 2008 between Trecora Resources and Hatem El Khalidi (incorporated by reference to Exhibit 10(h) to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2008 (file No. 001-33926))
10(b)*
-Arabian American Development Company Stock and Incentive Plan adopted April 3, 2012 (incorporated by reference to Exhibit A to the Company's Form DEF 14A filed April 25, 2012 (file No. 001-33926))
10(c)*
-Employment Contract dated October 1, 2014, between Trecora Resources and Peter M. Loggenberg, Ph.D. (incorporated by reference to Exhibit 10(c) to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2017 (file No. 001-33926))
10(d)*10(b)+
-Severance Agreement and Covenant not to Compete, Solicit and Disclose dated October 1, 2014, between Trecora Resources and Subsidiaries and Peter M. Loggenberg, Ph.D. (incorporated by reference to Exhibit 10(d) to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2017 (file No. 001-33926))
10(c)+
10(d)*+
10(e)*+
10(f)+
10(g)*+
10(h)*+
10(i)+
10(j)+
10(k)+
Form of Trecora Resources Stock and Incentive Plan Restricted Stock Unit Agreement (incorporated(incorporated by reference to Exhibit 10(b) to the Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2017 (file No. 001-33926))
10(f)*10(l)+
-Form of Trecora Resources Stock and Incentive Plan Amended and Restated Restricted Stock Unit Agreement (incorporated(incorporated by reference to Exhibit 10(c) to the Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2017 (file No. 001-33926))
10(g)10(m)
-Articles of Association of Al Masane Al Kobra Mining Company,, dated July 10, 2006 (incorporated by reference to Exhibit 10(m) to the Company's Annual Report on Form 10-K for the year ended December 31, 2009 (file No. 001-33926))
10(h)10(n)
-Bylaws of Al Masane Al Kobra Mining Company (incorporated(incorporated by reference to Exhibit 10(n) to the Company's Annual Report on Form 10-K for the year ended December 31, 2009 (file No. 001-33926))
 Exhibit
Number
Description
10(i)10(o)
-Letter Agreement dated August 5, 2009,, between Trecora Resources and the other Al Masane Al Kobra Company shareholders named therein (incorporated by reference to Exhibit 10.1 to the Company's Form 8-K filed on August 27, 2009 (file No. 001-33926))
10(j)10(p)
-Limited Guarantee dated October 24, 2010, between Trecora Resources and the Saudi Industrial Development Fund (incorporated by reference to Exhibit 10.1 to the Company's Form 8-K filed on October 27, 2010 (file No. 001-33926))
10(k)10(q)
-Amended and Restated Credit Agreement, dated as of October 1, 2014,, between among Texas Oil & Chemical Co. II, Inc. and, as Borrower, certain subsidiaries of the Borrower, as Guarantors, the Lenders from time to time party thereto and Bank of America, N.A., as administrative agentAdministrative Agent, Swingline Lender and an L/C Issuer (incorporated by reference to Exhibit 10.2 to the Company's Form 8-K8–K filed on October 3, 2014 (file No. 001-33926)001–33926))
10(l)10(r)
-Stock Purchase Agreement dated September 19, 2014, between Trecora Resources, Texas Oil & Chemical Co. II, Inc. SSI Chusei, Inc. and Schumann/Steier Holdings, LLC (incorporated by reference to Exhibit 2.1 to the Company's Form 8-K filed on September 25, 2014 (file No. 001-33926))
10(m)
-Second Amendment to Amended and Restated Credit Agreement, datesdated as of March 28, 2017, among Texas Oil & Chemical C o.Co. II, Inc. and, as Borrower, certain subsidiaries of the Borrower, as Guarantors, the Lenders from time to time party thereto and Bank of America, N.A., as administrative agentAdministrative Agent, Swingline Lender and an L/C Issuer (incorporated by reference to Exhibit 99.1 to the Company's form 8-K8–K filed on March 30, 2017 (file No. 001-33926))
10(n)10(s)
-Third Amendment to Amended and Restated Credit Agreement, dated as of July 25, 2017, among Texas Oil & Chemical Co. II, Inc. and, as Borrower, certain subsidiaries of the Borrower, as Guarantors, the Lenders from time to time party thereto and Bank of America, N.A., as administrative agentAdministrative Agent, Swingline Lender and an L/C Issuer (incorporated by reference to Exhibit 99.1 to the company's Form 8-K8–K filed on July 27, 2017 (file No. 001-33926)001–33926))
10(t)
-StandardsFourth Amendment to Amended and Restated Credit Agreement, dated as of Business Conduct for directors, officers,July 31, 2018, among Texas Oil & Chemical Co. II, Inc., as Borrower, certain subsidiaries of the Borrower, as Guarantors, the Lenders from time to time party thereto, Citibank, N.A., as an L/C Issuer, and employeesBank of Trecora Resources
16
-Letter re change in certifying accountant (incorporatedAmerica, N.A., as Administrative Agent, Swingline Lender and an L/C Issuer (incorporated by reference to Exhibit 16.1 to10.1 of the Company's Current Report on Form 8-K dated June 21, 2010July 31, 2018 (File No. 001-33926))
18.110(u)
-Preferability Letter (incorporatedFifth Amendment to Amended and Restated Credit Agreement, dated as of December 19, 2018, among Texas Oil & Chemical Co. II, Inc., as Borrower, certain subsidiaries of the Borrower, as Guarantors, the Lenders from time to time party thereto, Citibank, N.A., as an L/C Issuer, and Bank of America, N.A., as Administrative Agent, Swingline Lender and an L/C Issuer (incorporated by reference to Exhibit 18.1 to10.1 of the Company's QuarterlyCurrent Report on Form 10-Q for the quarter ended March 31, 2017 (file8-K dated December 14, 2018 (File No. 001-33926))
21
-Subsidiaries of Trecora Resources (incorporated by reference to Exhibit 21 to the Company's Annual Report on Form 10-K for the year ended December 31, 2014 (File 001-33926))
23.1*
23.2*
24*
-Power of Attorney (set(set forth on the signature page hereto).
31.1*
-Certification of Chief Executive Officer pursuant to Rule 13A-14(A)13a–14(a) or 15d–14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes–Oxley Act of 2002
31.2*
-Certification of Chief Financial Officer pursuant to Rule 13A-14(A)13a–14(a) or 15d–14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes–Oxley Act of 2002
32*
-Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350,, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
 Exhibit
Number
 Description
101.INS
-XBRL Instance Document
101.SCH
-XBRL Taxonomy Schema Document
101.CAL
-XBRL Taxonomy Calculation Linkbase Document
101.LAB
-XBRL Taxonomy Label Linkbase Document
101.PRE
-XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF
-XBRL Taxonomy Extension Definition Linkbase Document
(b)Exhibits required by Regulation 601 S-K
See (a) 3 of this Item 15
(c)Financial Statement Schedules
See (a) 2 of this Item 15

Pursuant to the requirements of ContentsSection 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.
49

POWER OF ATTORNEY

TRECORA RESOURCES
Dated: March 15, 2019By: /s/ Patrick Quarles
Patrick Quarles
Chief Executive Officer and President
KNOW ALL MEN BY THESE PRESENTS that each of Trecora Resources, a Delaware corporation, and the undersigned directors and officers of Trecora Resources hereby constitutes and appoints Simon Upfill-Brown itsPatrick Quarles and Sami Ahmad his or hisher true and lawful attorney-in-fact and agent, for ithim or himher and in itshis or hisher name, place and stead, in any and all capacities, with full power to act alone, to sign any and all amendments to this Report, and to file each such amendment to the Report, with all exhibits thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorney-in-fact and agent full power and authority to do and perform any and all acts and things requisite and necessary to be done in and about the premises as fully to all intents and purposes as ithe or heshe might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent may lawfully do or cause to be done by virtue hereof.

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.

                                       TRECORA RESOURCES


Dated: March 12, 2018By: /s/ Simon Upfill-Brown
                           Simon Upfill-Brown
                                          Chief Executive Officer and Chief Operating Officer

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 in the capacities indicated on March 12, 2018.15, 2019.

SignatureTitle
/s/ Simon Upfill-BrownPatrick Quarles
Simon Upfill-BrownPatrick Quarles
Chief Executive Officer and Chief Operating OfficerPresident
(principal executive officer)
/s/ Sami Ahmad
Sami Ahmad
Chief Financial Officer
(principal
 (principal financial officer)
/s/ Connie CookChristopher Groves
Connie CookChristopher Groves
Vice President of Accounting and Compliance
(principalCorporate Controller
 (principal accounting officer)
/s/ Nicholas CarterKaren A. Twitchell
Nicholas CarterKaren A. Twitchell
Executive ChairmanChair of the Board and Director
/s/ John R. TownsendGary K. Adams
John R. TownsendGary K. Adams
Director
/s/ Pamela R. Butcher
Pamela R. Butcher
Director
/s/ Nicholas Carter
Nicholas Carter
Director
/s/ Joseph P. Palm
Joseph P. Palm
Director
/s/ Gary K. Adams
Gary K. Adams
Director
/s/ Karen A. Twitchell
Karen A. Twitchell
Director


51

INDEX TO FINANCIAL STATEMENTS
Page
  
  
  
  
  
  
INDEX TO FINANCIAL STATEMENT SCHEDULES 
  
  



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and
Stockholders
of Trecora Resources

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Trecora Resources and Subsidiaries (the Company) as of December 31, 20172018 and 2016,2017, and the related consolidated statements of income, comprehensive income, stockholders'stockholders’ equity and cash flows for each of the years in the three-yearthree–year period ended December 31, 20172018 and the related notes and schedules listed in the index at Item 15(a) (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172018 and 2016,2017, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2017,2018, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company'sCompany’s internal control over financial reporting as of December 31, 2017,2018, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 12, 2018,15, 2019, expressed an unqualified opinion.

Basis for Opinion

These financial statements are the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s financial statements based on our audits. We are a public accounting firm registered with the 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 audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the 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 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 financial statements. We believe that our audits provide a reasonable basis for our opinion.





/s/ BKM Sowan Horan, LLP

We have served as the Company'sCompany’s auditor since 2010.

Addison, Texas
March 12, 2018


15, 2019


TRECORA RESOURCES AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

  December 31, 
  2017  2016 
  (thousands of dollars) 
ASSETS
      
CURRENT ASSETS      
  Cash and cash equivalents $3,028  $8,389 
  Trade receivables, net (Note 6)  25,779   22,193 
  Prepaid expenses and other assets (Note 7)  4,424   3,511 
  Inventories (Note 8)  18,450   17,871 
  Taxes receivable  5,584   3,983 
         
          Total current assets  57,265   55,947 
         
  PLANT, PIPELINE, AND EQUIPMENT – AT COST
  244,982   194,486 
    LESS ACCUMULATED DEPRECIATION  (63,240)  (54,477)
         
  PLANT, PIPELINE, AND EQUIPMENT, NET (Note 9)  181,742   140,009 
         
  GOODWILL (Note 10)  21,798   21,798 
  OTHER INTANGIBLE ASSETS, net (Note 10)  20,808   22,669 
  INVESTMENT IN AMAK (Note 11)  45,125   49,386 
  MINERAL PROPERTIES IN THE UNITED STATES (Note 12)  588   588 
  OTHER ASSETS  -   87 
         
TOTAL ASSETS $327,326  $290,484 








TRECORA RESOURCES AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
    
 December 31,
 2018
 2017
 (thousands of dollars)
ASSETS   
CURRENT ASSETS   
Cash and cash equivalents$6,735
 $3,028
Trade receivables, net (Note 5)27,112
 25,779
Inventories (Note 7)16,539
 18,450
Prepaid expenses and other assets (Note 6)4,664
 3,645
Taxes receivable182
 5,584
    
Total current assets55,232
 56,486
    
  PLANT, PIPELINE, AND EQUIPMENT – AT COST
268,419
 245,761
LESS ACCUMULATED DEPRECIATION(73,762) (63,240)
    
PLANT, PIPELINE, AND EQUIPMENT, NET (Note 8)194,657
 182,521
    
GOODWILL (Note 9)21,798
 21,798
OTHER INTANGIBLE ASSETS, net (Note 9)18,947
 20,808
INVESTMENT IN AMAK (Note 10)38,746
 45,125
MINERAL PROPERTIES IN THE UNITED STATES (Note 11)588
 588
    
TOTAL ASSETS$329,968
 $327,326
    
LIABILITIES   
 CURRENT LIABILITIES   
Accounts payable$19,106
 $18,347
Accrued liabilities (Note 13)5,439
 3,961
Current portion of post-retirement benefit (Note 22)19
 305
Current portion of long-term debt (Note 12)4,194
 8,061
Current portion of other liabilities733
 870
    
Total current liabilities29,491
 31,544
    
 LONG-TERM DEBT, net of current portion (Note 12)98,288
 91,021
 POST- RETIREMENT BENEFIT, net of current portion (Note 22)358
 897
    
 OTHER LIABILITIES , net of current portion994
 1,611
 DEFERRED INCOME TAXES (Note 16)15,676
 17,242
    
Total liabilities144,807
 142,315
    
COMMITMENTS AND CONTINGENCIES (Note 14)

 



TRECORA RESOURCES AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
    
 December 31,
 2018
 2017
 (thousands of dollars)
    
EQUITY   
 Common Stock ‑ authorized 40 million shares of $.10 par value; issued 24.6 and 24.5 million in 2018 and 2017, respectively, and outstanding 24.5 and 24.3 million in 2018 and 2017, respectively2,463
 2,451
Additional Paid-in Capital58,294
 56,012
Common Stock in Treasury, at cost 0.1 million and 0.2 million shares in 2018 and 2017, respectively(8) (196)
Retained Earnings124,123
 126,455
Total Trecora Resources Stockholders' Equity184,872
 184,722
Noncontrolling interest289
 289
Total equity185,161
 185,011
    
TOTAL LIABILITIES AND EQUITY$329,968
 $327,326


TRECORA RESOURCES AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS - Continued

  December 31, 
  2017  2016 
  (thousands of dollars) 
LIABILITIES
      
  CURRENT LIABILITIES
      
    Accounts payable $18,347  $13,306 
    Current portion of derivative instruments (Notes 5 and 22)  -   58 
    Accrued liabilities (Note 14)  3,961   2,017 
    Current portion of post-retirement benefit (Note 23)  305   316 
    Current portion of long-term debt (Note 13)  8,061   10,145 
    Current portion of other liabilities  870   870 
         
          Total current liabilities  31,544   26,712 
         
  LONG-TERM DEBT, net of current portion (Note 13)
  91,021   73,107 
  POST- RETIREMENT BENEFIT, net of current portion (Note 23)
  897   897 
         
  OTHER LIABILITIES, net of current portion
  1,611   2,309 
  DEFERRED INCOME TAXES (Note 17)
  17,242   23,083 
         
          Total liabilities  142,315   126,108 
         
COMMITMENTS AND CONTINGENCIES (Note 15)
        
         
EQUITY
        
  Common Stock ‑ authorized 40 million shares of $.10 par value; issued 24.5 million in 2017 and 2016 and outstanding 24.3 million and 24.2 million in 2017 and 2016, respectively
  2,451   2,451 
  Additional Paid-in Capital  56,012   53,474 
  Common Stock in Treasury, at cost 0.2 million and 0.3 million shares in 2017 and 2016, respectively  (196)  (284)
  Retained Earnings  126,455   108,446 
 Total Trecora Resources Stockholders' Equity  184,722   164,087 
 Noncontrolling interest  289   289 
       Total equity  185,011   164,376 
         
     TOTAL LIABILITIES AND EQUITY $327,326  $290,484 
TRECORA RESOURCES AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME
For the years ended December 31,

  2017  2016  2015 
  (thousands of dollars) 
Revenues         
  Petrochemical and product sales $227,334  $193,581  $227,937 
  Processing fees  17,809   18,818   14,039 
   245,143   212,399   241,976 
Operating costs and expenses            
  Cost of petrochemical, product sales, and processing (including depreciation and amortization of $10,089, $9,016, and $8,335, respectively)  203,582   172,497   184,967 
   Gross Profit  41,561   39,902   57,009 
             
General and Administrative Expenses            
  General and administrative  22,587   20,434   20,243 
  Depreciation  872   761   725 
   23,459   21,195   20,968 
             
Operating income  18,102   18,707   36,041 
             
Other income (expense)            
  Interest expense  (2,931)  (1,985)  (2,217)
  Bargain purchase gain from acquisition (Note 3)  -   11,549   - 
  Equity in losses of AMAK (Note 11)  (4,261)  (1,479)  (5,325)
  Gain from additional equity issuance by AMAK (Note 11)  -   3,168   - 
  Miscellaneous expense  (60)  (28)  (137)
   (7,252)  11,225   (7,679)
 Income before income tax expense  10,850   29,932   28,362 
             
Income tax benefit (expense)  7,159   (10,504)  (9,764)
             
   Net income  18,009   19,428   18,598 
             
Net loss attributable to Noncontrolling Interest  -   -   - 
             
Net income attributable to Trecora Resources $18,009  $19,428  $18,598 
             
Net income per common share            
    Basic earnings per share (dollars) $0.74  $0.80  $0.76 
    Diluted earnings per share (dollars) $0.72  $0.78  $0.74 
             
Weighted average number of common            
  shares outstanding            
     Basic  24,294   24,284   24,370 
     Diluted  25,129   24,982   25,181 

TRECORA RESOURCES AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

For the years ended December 31, 2017, 2016, and 2015

  TRECORA RESOURCES STOCKHOLDERS                
        Additional           Non-    
  Common Stock  Paid-In  Treasury  Retained     Controlling  Total 
  Shares  Amount  Capital  Stock  Earnings  Total  Interest  Equity 
  (thousands)                      
JANUARY 1, 2015  23,975  $2,397  $48,282  $-  $70,420  $121,099  $289  $121,388 
                                 
Stock options                                
  Issued to Directors  -   -   274   -   -   274   -   274 
  Issued to Employees  -   -   1,274   -   -   1,274   -   1,274 
  Issued to Former Director  -   -   97   -   -   97   -   97 
Restricted common stock                                
  Issued to Employees  14   -   587   -   -   587   -   587 
  Issued to Directors  -   -   43   -   -   43   -   43 
Warrants  5   1   (1)  -   -   -   -   - 
Common stock                                
  Issued to Directors  100   10   (10)  -   -   -   -   - 
  Issued to Employees  64   8   116   -   -   124   -   124 
Net Income  -   -   -   -   18,598   18,598   -   18,598 
                                 
DECEMBER 31, 2015  24,158  $2,416  $50,662  $-  $89,018  $142,096  $289  $142,385 
                                 
Stock options                                
  Issued to Directors  -   -   173   -   -   173   -   173 
  Issued to Employees  -   -   1,234   -   -   1,234   -   1,234 
  Issued to Former Director  -   -   48   -   -   48   -   48 
Restricted stock units                                
  Issued to Directors  -   -   254   -   -   254   -   254 
  Issued to Employees  -   -   783   -   -   783   -   783 
Common stock                                
  Issued to Directors  13   2   58   -   -   60   -   60 
  Issued to Employees  51   3   (8)  16   -   11   -   11 
Treasury stock transferred from TOCCO to TREC  -   30   270   (300)  -   -   -   - 
Net Income  -   -   -   -   19,428   19,428   -   19,428 
                                 
DECEMBER 31, 2016  24,222  $2,451  $53,474  $(284) $108,446  $164,087  $289  $164,376 
                                 
Stock options                                
  Issued to Directors  -   -   100   -   -   100   -   100 
  Issued to Employees  -   -   1,171   -   -   1,171   -   1,171 
Restricted stock units                                
  Issued to Directors  -   -   310   -   -   310   -   310 
  Issued to Employees  -   -   1,136   -   -   1,136   -   1,136 
Common stock                                
  Issued to Directors  29   -   (84)  29   -   (55)  -   (55)
  Issued to Employees  57   -   (92)  56   -   (36)  -   (36)
Warrants Exercised  3   -   (3)  3   -   -   -   - 
Net Income  -   -   -   -   18,009   18.009       18,009 
                                 
DECEMBER 31, 2017  24,311  $2,451  $56,012  $(196) $126,455  $184,722  $289  $185,011 


TRECORA RESOURCES AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
For the years ended December 31,
  2017  2016  2015 
  (thousands of dollars) 
Operating activities         
  Net income attributable to Trecora Resources $18,009  $19,428  $18,598 
  Adjustments to reconcile net income attributable            
    to Trecora Resources to net cash provided by operating
     activities:
            
    Depreciation  9,012   7,896   7,177 
    Amortization of intangible assets  1,861   1,880   1,883 
    Amortization of catalyst  88   -   - 
    Unrealized gain on derivative instruments  (58)  (119)  (381)
    Share-based compensation  2,707   2,552   2,353 
    Deferred income taxes  (5,841)  8,697   5,567 
    Postretirement obligation  (11)  271   7 
    Bargain purchase gain from acquisition  -   (11,549)  - 
    Equity in loss of AMAK  4,261   1,479   5,325 
    Gain from additional equity issuance by AMAK  -   (3,168)  - 
    Bad debt expense  -   90   - 
    Amortization of loan fees  247   272   272 
  Changes in operating assets and liabilities:            
    (Increase) decrease in trade receivables  (3,586)  (2,809)  8,797 
    (Increase) decrease in taxes receivable  (1,601)  3,689   (7,238)
    Increase in inventories  (579)  (2,067)  (2,989)
    (Increase) decrease in prepaid expenses and other assets  (806)  (1,022)  937 
    Increase (decrease) in other liabilities  142   (174)  2,151 
    Increase (decrease) in accounts payable and accrued liabilities  6,983   3,168   (2,399)
    Decrease in accrued liabilities in Saudi Arabia  -   -   (495)
    Net cash provided by operating activities  30,828   28,514   39,565 
             
Investing activities            
  Additions to plant, pipeline and equipment  (51,584)  (38,484)  (31,247)
  Acquisition of TC, Inc., net of cash of $107 purchased in 2014  -   -   (47)
  Acquisition of B Plant  -   (2,011)  - 
  Advances to AMAK, net  (107)  (14)  - 
    Cash used in investing activities  (51,691)  (40,509)  (31,294)
             
Financing Activities            
   Issuance of common stock  25   11   46 
   Payments related to tax withholding for stock-based compensation  (106)  -   - 
  Additions to long-term debt  26,000   8,000   15,000 
  Repayment of long-term debt  (10,417)  (6,250)  (13,200)
    Net cash provided by in financing activities  15,502   1,761   1,846 


TRECORA RESOURCES AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS - continuedOPERATIONS
For the years ended December 31,
 2018
 2017
 2016
 (thousands of dollars)
Revenues     
Specialty petrochemical and product sales$269,780
 $227,334
 $193,581
Processing fees18,152
 17,809
 18,818
 287,932

245,143

212,399
Operating costs and expenses     
Cost of specialty petrochemical, product sales, and processing (including depreciation and amortization of $13,618, $10,089, and $9,016, respectively)260,114
 203,582
 172,497
Gross Profit27,818

41,561

39,902
      
General and Administrative Expenses     
General and administrative22,396
 22,587
 20,434
Restructuring and severance (Note 21)2,347
 
 
Depreciation740
 872
 761
 25,483

23,459

21,195
      
Operating income2,335
 18,102
 18,707
      
Other income (expense)     
Interest expense(4,100) (2,931) (1,985)
Loss on extinguishment of debt(315) 
 
Bargain purchase gain from acquisition (Note 3)
 
 11,549
Equity in losses of AMAK (Note 10)(901) (4,261) (1,479)
Gain from additional equity issuance by AMAK (Note 10)
 
 3,168
Miscellaneous expense(158) (60) (28)
 (5,474)
(7,252)
11,225
      
Income (loss) before income tax expense(3,139)
10,850

29,932
      
Income tax benefit (expense)807
 7,159
 (10,504)
      
Net income (loss) attributable to Trecora Resources$(2,332)
$18,009

$19,428
      
Net income (loss) per common share     
Basic earnings (loss) per share (dollars)$(0.10) $0.74
 $0.80
Diluted earnings (loss) per share (dollars)$(0.10) $0.72
 $0.78
      
Weighted average number of common     
shares outstanding     
Basic24,438
 24,294
 24,284
Diluted24,438
 25,129
 24,982

TRECORA RESOURCES AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
For the years ended December 31, 2018, 2017, and 2016
  2017  2016  2015 
  (thousands of dollars) 
          
Net increase (decrease) in cash and cash equivalents  (5,361)  (10,234)  10,117 
             
Cash and cash equivalents at beginning of year  8,389   18,623   8,506 
             
Cash and cash equivalents at end of year $3,028  $8,389  $18,623 
 TRECORA RESOURCES STOCKHOLDERS          
     Additional       Non-  
 Common Stock Paid-In Treasury Retained   Controlling Total
 Shares Amount Capital Stock Earnings Total Interest Equity
 (thousands)
              
January 1, 201624,158
 $2,416
 $50,662
 $
 $89,018
 $142,096
 $289
 $142,385
                
Stock options               
Issued to Directors
 
 173
 
 
 173
 
 173
Issued to Employees
 
 1,234
 
 
 1,234
 
 1,234
Issued to Former Director
 
 48
 
 
 48
 
 48
Restricted common stock          
   
Issued to Directors
 
 254
 
 
 254
 
 254
Issued to Employees
 
 783
 
 
 783
 
 783
Common stock          
   
Issued to Directors13
 2
 58
 
 
 60
 
 60
Issued to Employees51
 3
 (8) 16
 
 11
 
 11
Treasury stock transferred from TOCCO to TREC
 30
 270
 (300) 
 
 
 
Net Income
 
 
 
 19,428
 19,428
 
 19,428
                
December 31, 201624,222

$2,451

$53,474

$(284)
$108,446

$164,087

$289

$164,376
                
Stock options               
Issued to Directors
 
 100
 
 
 100
 
 100
Issued to Employees
 
 1,171
 
 
 1,171
 
 1,171
Restricted stock units               
Issued to Directors
 
 310
 
 
 310
 
 310
Issued to Employees
 
 1,136
 
 
 1,136
 
 1,136
Common stock               
Issued to Directors29
 
 (84) 29
 
 (55) 
 (55)
Issued to Employees57
 
 (92) 56
 
 (36) 
 (36)
Warrants exercised3
 
 (3) 3
 
 
 
 
Net Income
 
 
 
 18,009
 18,009
 
 18,009
                
December 31, 201724,311

$2,451

$56,012

$(196)
$126,455

$184,722

$289

$185,011
                
Stock options               
Issued to Directors
 
 (10) 
 
 (10) 
 (10)
Issued to Employees
 
 154
 
 
 154
 
 154
Cancellations (see Note 15)
 
 (680) 
 
 (680)   (680)
Restricted stock units               
Issued to Directors
 
 338
 
 
 338
 
 338
Issued to Employees
 
 1,939
 
 
 1,939
 
 1,939
Common stock               
Issued to Directors188
 10
 489
 89
 
 588
 
 588
Issued to Employees183
 2
 127
 155
 
 284
 
 284

Supplemental disclosure of cash flow information:         
  Cash payments for interest $3,540  $2,545  $2,103 
  Cash payments (net of refunds) for taxes $92  $(1,630) $11,428 
             
Supplemental disclosure of non-cash items:            
  Other liabilities for capital expansion amortized to
    depreciation expense
 $840  $1,047  $972 
  Estimated earnout liability (Note 3) $-  $733  $- 
Stock Exchange (see Notes 10 & 18)(65) 
 (66) (65) 
 (131) 
 (131)
Warrants9
 
 (9) 9
 
 
 
 
Net Income (Loss)
 
 
 
 (2,332) (2,332) 
 (2,332)
                
December 31, 201824,626

$2,463

$58,294

$(8)
$124,123

$184,872

$289

$185,161


F-8
TRECORA RESOURCES AND SUBSIDIARIES
      
CONSOLIDATED STATEMENTS OF CASH FLOWS
      
For the years ended December 31,
      
 2018
 2017
 2016
 (thousands of dollars)
Operating activities     
Net income (loss) attributable to Trecora Resources$(2,332) $18,009
 $19,428
Adjustments to reconcile net income (loss) attributable     
to Trecora Resources to net cash provided by operating activities:     
Depreciation12,497
 9,100
 7,896
Amortization of intangible assets1,861
 1,861
 1,880
Unrealized gain on derivative instruments
 (58) (119)
Share-based compensation1,753
 2,707
 2,552
Deferred income taxes(1,566) (5,841) 8,697
Postretirement obligation(825) (11) 271
Bargain purchase gain from acquisition
 
 (11,549)
Equity in loss of AMAK901
 4,261
 1,479
Gain from additional equity issuance by AMAK
 
 (3,168)
Bad debt expense152
 
 90
Amortization of loan fees261
 247
 272
Loss on extinguishment of debt315
 
 
Changes in operating assets and liabilities:     
Increase in trade receivables(1,485) (3,586) (2,809)
(Increase) decrease in taxes receivable5,401
 (1,601) 3,689
(Increase) decrease in inventories1,911
 (579) (2,067)
Increase in prepaid expenses and other assets(1,222) (806) (1,022)
Increase (decrease) in other liabilities33
 142
 (174)
Increase in accounts payable and accrued liabilities2,240
 6,983
 3,168
Net cash provided by operating activities19,895
 30,828
 28,514
      
Investing activities     
Additions to plant, pipeline and equipment(25,285) (51,584) (38,484)
Acquisition of B Plant
 
 (2,011)
Proceeds from AMAK share repurchase (Note 10)5,347
 
 
Advances to AMAK, net67
 (107) (14)
Net cash used in investing activities(19,871) (51,691) (40,509)
      
Financing Activities     
Issuance of common stock
 25
 11
Net cash received (paid) related to stock-based compensation860
 (106) 
Additions to long-term debt18,177
 26,000
 8,000
Repayment of long-term debt(15,354) (10,417) (6,250)
Net cash provided by in financing activities3,683
 15,502
 1,761


TRECORA RESOURCES AND SUBSIDIARIES
      
CONSOLIDATED STATEMENTS OF CASH FLOWS
      
For the years ended December 31,
      
 2018
 2017
 2016
 (thousands of dollars)
      
Net increase (decrease) in cash and cash equivalents3,707
 (5,361) (10,234)
      
Cash and cash equivalents at beginning of year3,028
 8,389
 18,623
      
Cash and cash equivalents at end of year$6,735
 $3,028
 $8,389
      
Supplemental disclosure of cash flow information:     
Cash payments for interest$4,560
 $3,540
 $2,545
Cash payments (net of refunds) for taxes$(4,182) $92
 $(1,630)
      
Supplemental disclosure of non-cash items:     
Capital Expansion amortized to depreciation expense$787
 $840
 $1,047
Estimated earnout liability (Note 3)$
 $
 $733
Stock exchange (Notes 10 & 18)$131
 $
 $


NOTE 1 - BUSINESS AND OPERATIONS OF THE COMPANY

Trecora Resources, formerly Arabian American Development Company, (the "Company") was organized as a Delaware corporation in 1967. The Company's principal business activities are the manufacturing of various specialty petrochemical products, specialty waxes and providing custom processing services. The Company owns 33% of a Saudi Arabian joint stock company, Al Masane Al Kobra Mining Company ("AMAK") (see Note 11)10) and approximately 55% of the capital stock of a Nevada mining company, Pioche Ely Valley Mines, Inc. ("PEVM"), which does not conduct any substantial business activity but owns undeveloped properties in the United States.

The Company's specialty petrochemical operations are primarily conducted through a wholly-owned subsidiary, Texas Oil and Chemical Co. II, Inc. ("TOCCO"). TOCCO owns all of the capital stock of South Hampton Resources, Inc. ("SHR") and Trecora Chemical, Inc. ("TC"). SHR owns all of the capital stock of Gulf State Pipe Line Company, Inc. ("GSPL"). SHR owns and operates a specialty petrochemical product facility near Silsbee, Texas which manufactures high purity hydrocarbons used primarily in polyethylene, packaging, polypropylene, expandable polystyrene, poly-iso/urethane foams, Canadian tar sands, and in the catalyst support industry. TC owns and operates a facility located in Pasadena, Texas which manufactures specialty waxes and provides custom processing services. These specialty waxes are used in the production of coatings, hot melt adhesives and lubricants. GSPL owns and operates pipelines that connect the SHR facility to a natural gas line, to SHR's truck and rail loading terminal and to a major petroleum pipeline owned by an unaffiliated third party.

We attribute revenues to countries based upon the origination of the transaction. All of our revenues for the years ended December 31, 2018, 2017, 2016, and 2015,2016, originated in the United States. In addition, all of our long-lived assets are in the United States.

For convenience in this report, the terms "Company", "our", "us" or "we" may be used to refer to Trecora Resources and its subsidiaries.

Certain reclassifications have been made to the Consolidated Balance Sheet for the year ended December 31, 2016, related to our adoption of Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU") 2015-17 as noted below and in Note 2.

The impact of the adoption ASU 2015-17 on the Company's previously issued December 31, 2016, balance sheet is as follows:

  
As Originally
Reported
  
As Retrospectively
Adjusted
 
  (in thousands) 
Deferred income tax asset, current $1,615  $- 
Total current assets  57,562   55,947 
Total assets  292,099   290,484 
Deferred income tax liability, noncurrent  24,698   23,083 
Total liabilities  127,723   126,108 
Total liabilities and equity  292,099   290,484 


NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation– The consolidated financial statements include the balance sheets, statements of income, stockholders' equity, and cash flows of the Company, TOCCO, TC, SHR, GSPL and PEVM. Other entities which are not controlled but over which the Company has the ability to exercise significant influence such as AMAK, are accounted for using the equity method of accounting. All intercompany profits, transactions and balances have been eliminated.

Cash, Cash Equivalents and Short-Term Investments - Our principal banking and short-term investing activities are with local and national financial institutions. Short-term investments with an original maturity of three months or less are classified as cash equivalents.

Inventories - Finished products and feedstock are recorded at the lower of cost, determined on the last-in, first-out method (LIFO) at December 31, 2016, and first-in, first-out method (FIFO) at December 31, 2017;, or market for SHR. For TC, inventory is recorded at the lower of cost or market as follows: (1) raw material cost is calculated using the weighted-average cost method and (2) product inventory cost is calculated using the specific cost method.

Trade Receivables and Allowance for Doubtful Accounts – We evaluate the collectability of our trade receivables and adequacy of the allowance for doubtful accounts based upon historical experience and any specific customer financial difficulties of which we become aware. For the year ended December 31, 2018, we increased the balance by $152,000 due to concerns regarding collectability for a specific customer. For the year ended December 31, 2017, the allowance balance was not increased. In 2016, we increased the balance by $90,000 due to an increase in sales in countries where there is a greater risk of default and limited recourse should this occur.  For the years ended December 31, 2017, and 2015, the allowance balance was not increased. We track customer balances and past due amounts to determine if customers may be having financial difficulties. This, along with historical experience and a working knowledge of each customer, helps determine accounts that should be written off. No amounts were written off in 2018 or 2017. During 2016 we wrote off one account for approximately $93,000.  No amounts were written off in 2017 or 2015.

Notes Receivable – We periodically make changes in or expand our custom processing units at the request of the customer. The cost to make these changes is shared by the customer. Upon completion of a project a non-interest note receivable is recorded with an imputed interest rate. InterestThere were no notes receivable outstanding as of December 31, 2018. The interest rate used on outstanding notes during December 31, 2017,2018 and 2016,2017 was 4%. The unearned interest iswas reflected as a discount against the note balance. The Company evaluates the collectability of notes based upon a working knowledge of the customer. The notes are receivable from custom processing customers with whom we maintain a close relationship. Thus, all amounts due under the notes receivable are considered collectible, and no allowance was recorded at December 31, 2018 and 2017, and 2016.

respectively.
Plant, Pipeline and Equipment - Plant, pipeline and equipment are stated at cost. Depreciation is provided over the estimated service lives using the straight-line method. Gains and losses from disposition are included in operations in the period incurred. Maintenance and repairs are expensed as incurred. Major renewals and improvements are capitalized.

Interest costs incurred to finance expenditures during construction phase are capitalized as part of the historical cost of constructing the assets. Construction commences with the development of the design and ends when the assets are ready for use. Capitalized interest costs are included in plant, pipeline and equipment and are depreciated over the service life of the related assets.

Labor costs incurred to self-construct assets are capitalized as part of the historical cost the assets. Construction commences with the development of the design and ends when the assets are ready for use. Capitalized labor costs are included in plant, pipeline and equipment and are depreciated over the service life of the related assets.

Platinum catalyst is included in plant, pipeline and equipment at cost. Amortization of the catalyst is based upon cost less estimated salvage value of the catalyst using the straight line method over the estimated useful life (see Note 9)8).

Goodwill and Other Intangible Assets – Goodwill represents the future economic benefits arising from other assets acquired in the acquisition of TC that are not individually identified and separately recognized. Goodwill and indefinite-lived intangible assets are tested for impairment at least annually; however, these tests are performed more frequently when events or changes in circumstances indicate that the asset may be impaired. Impairment exists when carrying value exceeds fair value. Estimates of fair value are based on appraisals, market prices for comparable assets, or internal estimates of future net cash flows.

Definite-lived intangible assets consist of customer relationships, licenses, permits and developed technology that were acquired as part of the Acquisition of TC. The majority of these assets are being amortized using discounted estimated future cash flows over the term of the related agreements. Intangible assets associated with customer
relationships are being amortized using the discounted estimated future cash flows method based upon assumed rates of annual customer attrition. We continually evaluate the reasonableness of the useful lives of these assets. Once these assets are fully amortized, they will be removed from the consolidated balance sheets.

Business Combinations and Related Business Acquisition Costs– Assets and liabilities associated with business acquisitions are recorded at fair value using the acquisition method of accounting. We allocate the purchase price of acquisitions based upon the fair value of each component which may be derived from various observable and unobservable inputs and assumptions. We may use third-party valuation specialists to assist us in this allocation. Initial purchase price allocations are preliminary and subject to revision within the measurement period, not to exceed one year from the date of acquisition. The fair value of property, plant and equipment and intangible assets are based upon the discounted cash flow method that involves inputs that are not observable in the market (Level 3). Goodwill assigned represents the amount of consideration transferred in excess of the fair value assigned to identifiable assets acquired and liabilities assumed.

Business acquisition costs are expensed as incurred and are reported as general and administrative expenses in the consolidated statements of income. We define these costs to include finder's fees, advisory, legal, accounting, valuation, and other professional consulting fees, as well as, travel associated with the evaluation and effort to acquire specific businesses.

Investment in AMAK – We account for our investment in AMAK using the equity method of accounting under which we record in income our share of AMAK's income or loss for each period. The amount recorded is also adjusted to reflect the amortization of certain differences between the basis in our investment in AMAK and our share of the net assets of AMAK as reflected in AMAK's financial statements (see Note 11)10).

Any proceeds received from or payments made to AMAK are recorded as decreases or increases in the balance of our investment.
We assess our investment in AMAK for impairment when events are identified, or there are changes in circumstances that may have an adverse effect on the fair value of the investment. We consider recoverable ore reserves, changes in commodity prices, and the amount and timing of the cash flows to be generated by the production of those reserves, as well as, recent equity transactions within AMAK.

Other Assets - Other assets include a license used in specialty petrochemical operations, spare parts inventory and certain specialty petrochemical assets. Beginning January 1, 2017, due to the expansion of our plant assets at SHR and TC, we began inventorying spare parts for the repair and maintenance of our plant, pipeline and equipment. Spare parts are accounted for on the first-in, first-out method (FIFO).

Long-Lived Assets Impairment - Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable based on the undiscounted net cash flows to be generated from the asset's use. The amount of the impairment loss to be recorded is calculated by the excess of the asset's carrying value over its fair value. Fair value is generally determined using a discounted cash flow analysis although other factors including the state of the economy are considered.

Revenue Recognition The Company adopted Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 606 ("ASC 606"), Revenue from Contracts with Customers, and its amendmentswith a date of the initial application of January 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below. ASC 606 outlines a single comprehensive model for an entity to use in accounting for revenue arising from all contracts with customers, except where revenues are in scope of another accounting standard. ASC 606 superseded the revenue

recognition requirements in ASC Topic 605, "Revenue Recognition", and most industry specific guidance. ASC Topic 606 sets forth a five-step model for determining when and how revenue is recordedrecognized. Under the model, an entity is required to recognize revenue to depict the transfer of goods or services to a customer at an amount reflecting the consideration it expects to receive in exchange for those goods and services. ASC 606 also requires certain additional revenue-related disclosures.
The Company applied the modified retrospective approach under ASC 606 which allows for the cumulative effect of adopting the new guidance on the date of initial application. Use of the modified retrospective approach means the Company's comparative periods prior to initial application are not restated. The initial application was applied to all contracts at the date of the initial application.   The Company has determined that the adjustments using the modified retrospective approach did not have a material impact on the date of the initial application along with the disclosure of the effect on prior periods.

Accounting Policy

Beginning on January 1, 2018, revenue is measured based on a consideration specified in a contract with a customer. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer. In evaluating when a customer has control of the asset we primarily consider whether the transfer of legal title and physical delivery has occurred, whether the customer has significant risks and rewards of ownership, and whether the customer has accepted delivery and a right to payment exists. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction, that are collected by the Company from a customer, are excluded from revenue. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in cost of product sales and processing. The Company does not offer material rights of return or service-type warranties.
For the year ended December 31, 2017 the Company recognized revenue according to FASB ASC Topic 605 ("ASC 605"), "Revenue Recognition", when: (1) the customer acceptsaccepted delivery of the product and title hashad been transferred or when the service iswas performed and we havethe Company had no significant obligations remaining to be performed; (2) a final understanding as to specific nature and terms of the agreed upon transaction hashad occurred; (3) price iswas fixed and determinable; and (4) collection iswas assured. For our productProduct sales generally met these criteria, are generally met, and revenue iswas recognized, when the product iswas delivered or title iswas transferred to the customer. Sales arerevenue was presented net of discounts, allowances, and sales taxes. Freight costs billed to customers arewere recorded as a component of revenue. For our custom processing we recognize revenue when the service has been provided to the customer.

Revenues received in advance of future sales of products or prior to the performance of services arewere presented as deferred revenues. Shipping and handling costs were classified as cost of product sales and processing and were expensed as incurred.
Nature of goods and services

The following is a description of principal activities – separated by reportable segments – from which the Company generates its revenue. For more detailed information about reportable segments, disaggregation of revenues, and contract balance disclosures, see Note 17.

Specialty petrochemical segment
The specialty petrochemical segment of the Company produces eight high purity hydrocarbons and other petroleum based products including isopentane, normal pentane, isohexane and hexane. These products are used in the production of polyethylene, packaging, polypropylene, expandable polystyrene, poly-iso/urethane foams, crude oil from the Canadian tar sands, and in the catalyst support industry. SHR's specialty petrochemical products are typically transported to customers by rail car, tank truck, iso-container and ship.
Product Sales – The Company sells individual (distinct) products to its customers on a stand-alone basis (point-of-sale) without any further integration. There is no significant modification of any one or more products sold to fulfill another promised product or service within any of the Company's product sale transactions. The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected 30 to 60 days subsequent to point of sale.
Processing Fees – The Company's services consist of processing customer supplied feedstocks into custom products including, if requested, services for forming, packaging, and arranging shipping. Pursuant to Tolling Agreements the customer retains title to the feedstocks and processed products. The performance obligation in each Tolling Agreement transaction is the processing of customer provided feedstocks into custom products and is satisfied over time.   The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.

Specialty Wax segment

The specialty wax segment of the Company manufactures and sells specialty polyethylene and poly alpha olefin waxes and also provides custom processing services for customers.
Product Sales – The Company sells individual (distinct) products to its customers on a stand-alone basis (point-of-sale) without any further integration. There is no significant modification of any one or more products sold to fulfill another promised product or service within any of the Company's product sale transactions. The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.
Processing Fees – The Company's promised services consist of processing customer supplied feedstocks into custom products including, if requested, services for forming, packaging, and arranging shipping. Pursuant to Tolling Agreements and Purchase Order Arrangements, the customer typically retains title to the feedstocks and processed products. The performance obligation in each Tolling Agreement transaction and Purchase Order Arrangement is the processing of customer provided feedstocks into custom products and is satisfied over time.   The amount of consideration received for product sales is stated within the executed invoice with the customer. Payment is typically due and collected within 30 days subsequent to point of sale.
Shipping and Handling Costs - Shipping and handling costs are classified as cost of product sales and processing and are expensed as incurred.

Retirement Plan– We offer employees the benefit of participating in a 401(k) plan. We match 100% up to 6% of pay with vesting occurring over 2 years. For years ended December 31, 2018, 2017, 2016, and 2015,2016, matching contributions of approximately $1,502,000, $1,412,000, $1,195,000, and $1,116,000,$1,195,000, respectively were made on behalf of employees.

Environmental Liabilities - Remediation costs are accrued based on estimates of known environmental remediation exposure. Ongoing environmental compliance costs, including maintenance and monitoring costs, are expensed as incurred.

Other Liabilities – We periodically make changes in or expand our custom processing units at the request of the customer. The cost to make these changes is shared by the customer. Upon completion of a project a note receivable and a deferred liability are recorded to recover the project costs which are then capitalized. At times instead of a note receivable being established, the customer pays an upfront cost. The amortization of other liabilities is recorded as a reduction to depreciation expense over the life of the contract with the customer. As of December 31 of each year, depreciation expense was offset and reduced by approximately $0.8 million, for 2017, $1.0$0.8 million, for 2016, and $1.0 million, for 2015.

2018, 2017, and 2016, respectively.
Net Income Per Share - We compute basic income per common share based on the weighted-average number of common shares outstanding. Diluted income per common share is computed based on the weighted-average number of common shares outstanding plus the number of additional common shares that would have been outstanding if potential dilutive common shares, consisting of stock options, unvested restricted stock units, and shares which could be issued upon conversion of debt, had been issued (see Note 19)18).

Foreign Currency - The functional currency for the Company and each of the Company's subsidiaries is the US dollar (USD). Transaction gains or losses as a result of transactions denominated and settled in currencies other than the USD are reflected in the statements of income as foreign exchange transaction gains or losses. We do not employ any practices to minimize foreign currency risks. The functional and reporting currency of AMAK is the Saudi Riyal (SR). In June 1986 the SR was officially pegged to the USD at a fixed exchange rate of 1 USD to 3.75 SR; therefore, we translate SR into our reporting currency of the USD for income statement and balance sheet purposes using the fixed exchange rate. As of December 31, 2018, 2017 2016 and 2015,2016, foreign currency translation adjustments were not significant.

Management Estimates - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America 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 consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates include allowance for doubtful accounts receivable and inventory obsolescence; assessment of impairment of our long-lived assets, goodwill, intangible assets and investments, financial contracts, litigation liabilities, post-retirement benefit obligations, guarantee obligations, environmental liabilities, income taxes and deferred tax valuation allowances. Actual results could differ from these estimates.

Share-Based Compensation – We recognize share-based compensation of stock options granted based upon the fair value of options on the grant date using the Black-Scholes pricing model (see Note 16)15). Share-based compensation expense recognized during the period is based on the fair value of the portion of share-based payments awards that is ultimately expected to vest. Share-based compensation expense recognized in the consolidated statements of incomeoperations for the years ended December 31, 2018, 2017, 2016, and 20152016 includes compensation expense based on the estimated grant date fair value for awards that are ultimately expected to vest, and accordingly has been reduced for estimated forfeitures. Estimated forfeitures at the time of grant are revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

Guarantees –We may enter into agreements which contain features that meet the definition of a guarantee under FASB ASC 460 "Guarantees" (see Note 15)14). These arrangements create two types of obligations:

a)We have a non-contingent and immediate obligation to stand ready to make payments if certain future triggering events occur. For certain guarantees, a liability is recognized for the stand ready obligation at the inception of the guarantee; and

b)We have an obligation to make future payments if those certain future triggering events do occur. A liability for the payment under the guarantee is recognized when 1) it becomes probable that one or more future events will occur, triggering the requirement to make payments under the guarantee and 2) when the payment can be reasonably estimated.
Fair Value – The carrying value of cash and cash equivalents, trade receivables, taxes receivable, accounts payable, accrued liabilities, and other liabilities approximate fair value due to the immediate or short-term maturity of these financial instruments. The fair value of variable rate long term debt and notes payable reflect recent market transactions and approximate carrying value. We used other observable inputs that would qualify as Level 2 inputs to make our assessment of the approximate fair value of our cash and cash equivalents, trade receivables, taxes receivable, accounts payable, accrued liabilities, other liabilities, notes payable and variable rate long term debt. The fair value of the derivative instruments are described below.

We measure fair value by ASC Topic 820 Fair Value. ASC Topic 820 defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. ASC Topic 820 applies to reported balances that are required or permitted to be measured at fair value under existing accounting pronouncements; accordingly, the standard amends numerous accounting pronouncements but does not require any new fair value measurements of reported balances. ASC Topic 820 emphasizes that fair value, among other things, is based on exit price versus entry price, should include assumptions about risk such as nonperformance risk in liability fair values, and is a market-based measurement, not an entity-specific measurement. When considering the assumptions that market participants would use in pricing the asset or liability, ASC Topic 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity's own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). The fair value hierarchy prioritizes inputs used to measure fair value into three broad levels.
In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.
Derivatives – We record derivative instruments as either an asset or liability measured at fair value. Changes in the derivative instrument's fair value are recognized currently in earnings unless specific hedge accounting criteria are met. Special accounting for qualifying hedges allows a derivative instrument's gains and losses to offset related results on the hedged item in the income statement, to the extent effective, and requires that a company must formally document, designate and assess the effectiveness of transactions that receive hedge accounting.

Income Taxes – Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax
bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company maintains a valuation allowance for a deferred tax asset when it is deemed to be more likely than not that some or all of the deferred tax asset will not be realized.

Our estimate of the potential outcome of any uncertain tax issues is subject to management's assessment of relevant risks, facts, and circumstances existing at that time. We use a more likely than not threshold for financial statement recognition and measurement of tax position taken or expected to be taken in a tax return. To the extent that our assessment of such tax position changes, the change in estimate is recorded in the period in which the determination is made. We report tax-related interest and penalties as a component of income tax expense.

On December 22, 2017, Public Law No. 115-97 known as the Tax Cuts and Jobs Act (TCJA) was enacted. The TCJA includesincluded a number of changes to existing U.S. tax laws that impact the Company, most notably a reduction of the U.S. federal corporate income tax rate from a maximum of 35 percent to a flat 21 percent for tax years effective January 1, 2018. The TCJA also implementsimplemented a territorial tax system, providesprovided for a one-time deemed repatriation tax on unrepatriated foreign earnings, eliminateseliminated the alternative minimum tax (AMT), makesmade AMT credit carryforwards refundable, and permitspermitted the acceleration of depreciation for certain assets placed into service after September 27, 2017. In addition the TJCA createscreated prospective changes beginning in 2018, including repeal of the domestic manufacturing deduction, acceleration of tax revenue recognition,

capitalization of research and development expenditures, additional limitations on executive compensation and limitations on the deductibility of interest.

The Company has elected to recognize the income tax effects of the TCJA in its financial statements in accordance with Staff Accounting Bulletin 118 (SAB 118), which provides guidance for the application of ASC Topic 740 Income Taxes, in the reporting period in which the TCJA was signed into law. Under SAB 118 when a Company does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the TCJA it will recognize provisional amounts if a reasonable estimate can be made. If a reasonable estimate cannot be made then no impact is recognized for the effect of the TCJA. SAB 118 permits an up to one year measurement period to finalize the measurement of the impact of the TCJA.

Reclassifications – Certain reclassifications have been made to prior year balances to conform with the current year presentation.
Subsequent Events – The Company has evaluated subsequent events through March 12, 2018,15, 2019, the date that the consolidated financial statements were approved by management.

New Accounting Pronouncements

In May 2014 the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, 2014-9, Revenue from Contracts with Customers ("ASU 2014-09"2014-9"). ASU 2014-092014-9 supersedes the revenue
recognition requirements of FASB Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition and most industry-specific guidance throughout the Accounting Standards Codification, resulting in the creation of FASB ASC Topic 606, Revenue from Contracts with Customers. ASU 2014-092014-9 requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. This ASU provides alternative methods of retrospective adoption and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. The Company completed its assessment of the impact of the adoption of ASU 2014-092014-9 across all revenue streams. This included reviewing current accounting policies and practices to identify potential differences that would result from applying the requirements under the new standard. We completed contract reviews and validated results of applying the new revenue guidance.  We adopted ASU 2014-09 on January 1, 2018, using the modified retrospective approach which will be fully presented in our Quarterly Report on Form 10-Q for the three months ended March 31, 2018.  Based on the completed analysis, we determined that the adjustment will not have a material impact on the consolidated financial statements.guidance (Note 2). See Revenue Recognition policy note.

In November 2015 the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. The new standard eliminates the current requirement for organizations to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, organizations will be required to classify all deferred tax assets and liabilities as noncurrent. The amendments are effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The Company implemented ASU 2015-17 by classifying all of it deferred tax assets (liabilities) as noncurrent on the December 31, 2017, and 2016 Balance Sheet, see Note 17.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), to. This update will increase transparency and comparability among organizations by recognizing all lease transactions (with terms in excess of 12 months)assets and lease liabilities on the balance sheet as a lease liability and a right-of-use asset (as defined). The ASUdisclosing key information about leasing arrangements. This update is effective for fiscal yearsannual and interim reporting periods beginning after December 15, 2018, including interim periods within those fiscal years, with earlier applicationyears. Early adoption is permitted. Upon adoption, the lessee will apply the new standard retrospectively to all periods presented or retrospectively using a cumulative effect adjustment in the year of adoption.  The Company has several lease agreements for which the amendments will require the Company to recognize a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and does not expect to early adopt. As permitted by the amendments, the Company is anticipating electing an accounting policy to not recognize lease assets and lease liabilities for leases with a term of twelve months or less. The Company is currently in the process of fully evaluating the amendments and will subsequently implement new processes. In addition, the Company will change its current accounting policies to comply with the amendments with such changes as mentioned above.

In March 2016July 2018, the FASB issued ASU No. 2016-09, Compensation—Stock Compensation (Topic 718):2018-11, Targeted Improvements to Employee Share-Based Payment AccountingASC 842, Leases.  ASU 2018-11 provided entities with an alternative modified transition method to elect not to recast the comparative periods presented when adopting ASC 842. The new standard provides a number of optional practical expedients in transition. The Company expects to elect: (1) the ‘package of practical expedients’, which will reduce complexity inpermits it not to reassess under the new standard its prior conclusions about lease identification, lease classification, and initial direct costs and (2) the use-of-hindsight. In addition, the new standard provides practical expedients for an entity’s ongoing accounting standards relatedthat the Company anticipates making, such as the (1) the election for certain classes of underlying asset to share-based payment transactions, including, among others, (1) accountingnot separate non-lease components from lease components and (2) the election for income taxes, (2) classification of excess tax benefits on the statement of cash flow, (3) forfeitures, and (4) statutory tax withholding requirements.  The ASU is effectiveshort-term lease recognition exemption for annual reporting periods beginning on or after December 15, 2016, and interim periods within those annual periods.all leases that qualify. The Company implemented the amendmentswill adopt ASU 842 as of January 1, 2017.2019, using the alternative modified transition method. In preparation of adopting ASC 842, the Company is implementing additional internal controls to enable future preparation of financial information in accordance with ASC 842. The stock based compensation planCompany has also substantially completed its evaluation of the impact on the Company’s lease portfolio. The Company believes the largest impact will be on the consolidated balance sheets for the accounting of rail cars, equipment and office leases, which represents a majority of its operating leases it has entered into as a lessee. These leases will be recognized under the new standard as right of use assets (“ROU”) operating lease liabilities. The Company will also be required to provide expanded disclosures for its leasing arrangements. As of December 31, 2018, the Company had approximately $18.1 million of undiscounted future minimum operating lease commitments that are not historically generated material amountsrecognized on its consolidated balance sheets as determined under the current standard. For a lessee, the results of excess tax benefits or deficiencies and, therefore, thereoperations are not expected to significantly change after adoption of the new standard.  While substantially complete, the Company is no material changestill in the Company's financial position or resultsprocess of operation, as a resultfinalizing its evaluation of adopting this Update. For additional informationthe effect of ASU 842 on the stock-based compensation plan, see Note 16.Company’s financial statements and disclosures, including the determination of the Company’s incremental borrowing rate for each of the operating leases to estimate the interest rate we would have to pay to borrow on a collateralized basis over a similar term for an amount equal to the lease payments. The Company will finalize its accounting assessment and quantitative impact of the adoption during the first quarter of fiscal year 2019.

In January 2017 the FASB issued ASU No. 2017-04, 2017-4, Intangibles – Goodwill and Other (Topic 350). The amendments in ASU 2017-042017-4 simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, under these amendments, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting

unit. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017.The amendments also eliminate the requirements for any reporting unit with a zero or negative carrying amount
to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The Company has goodwill from prior business combination and performs an annual impairment test or more frequently if changes or circumstances occur that would more-likely-than-not reduce the fair value of the reporting unit below its carrying value. During the year ended December 31, 2017,2018, the Company performed its impairment assessment and determined the fair value of the aggregated reporting units exceed the carrying value, such that the Company's goodwill was not considered impaired. Although the Company cannot anticipate future goodwill impairment assessments, based on the most recent assessment, it is unlikely that an impairment amount would need to be calculated and, therefore, the Company does not anticipate a material impact from these amendments to the Company's financial position and results of operations. The current accounting policies and processes are not anticipated to change, except for the elimination of the Step 2 analysis.
In February 2018 the FASB issued ASU No. 2018-02, 2018-2, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. ASU 2018-022018-2 was issued to address the income tax accounting treatment of the stranded tax effects within other comprehensive income due to the prohibition of backward tracing due to an income tax rate change that was initially recorded in other comprehensive income due to the enactment of the Tax Cuts and Jobs Act (TCJA) on December 22, 2017, which changed the Company's income tax rate from 35% to 21%. The amendments to the ASU changed US GAAP whereby an entity may elect to reclassify the stranded tax effect from accumulated other comprehensive income to retained earnings. The amendments of the ASU may be adopted in total or in part using a full retrospective or modified retrospective method. The amendments of the ASU are effective for periods beginning after December 15, 2018. Early adoption is permitted.The Company believes there will be no material impact to the consolidated financial statements as a result of this update.
In June 2018, the FASB issued ASU No. 2018–07, Improvements to Nonemployee Share–Based Payment Accounting. ASU 2018–07 simplifies the accounting for share–based payments to nonemployees by aligning it with the accounting for share–based payments to employees, with certain exceptions. The amendments in this ASU are effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. The Company is assessing the effect of ASU 2018-022018–02 on its consolidated financial statements.statements.

NOTE 3 – ACQUISITION OF B PLANT

On May 2, 2016, we purchased the idle BASF facility adjacent to our TC facility in exchange for $2.0 million in cash, transaction costs of approximately $11,000 plus an earnout provision calculated through calendar year 2020 based upon revenue generated by the facility but limited to $1.8 million. The cash payment was funded by working capital. The purchased facility includes production equipment similar to TC's plus equipment that broadens TC's capabilities and potential markets. The 6.5-acre site also includes substantial storage capacity, several rail and truck loading sites and utility tie-ins to TC. We refer to the facility as "B Plant".

We have accounted for the purchase in accordance with the acquisition method of accounting under Financial Accounting Standards Board Accounting Standards Codification Topic 805 "Business Combinations" ("ASC 805"). In accordance with ASC 805, we used our best estimates and assumptions to assign fair value to the tangible assets and liabilities acquired at the acquisition date.

The assets and liabilities acquired have been included in our consolidated balance sheets and our consolidated statements of income since the date of acquisition.

We recorded an $11.5 million bargain purchase gain on the transaction as calculated in the table below (in thousands).

Cash paid $2,011    
Estimated earnout liability  733    
Purchase Price     $2,744 
         
Fixed assets at FMV        
Land  980     
Site improvements  30     
Buildings  1,350     
Production equipment  11,933     
       14,293 
         
Bargain purchase gain     $11,549 

F-15

Cash paid$2,011
  
Estimated earnout liability733
  
Purchase Price  $2,744
    
Fixed assets at FMV   
Land980
  
Site improvements30
  
Buildings1,350
  
Production equipment11,933
  
   14,293
Bargain purchase gain  $11,549
The business acquired had been idle for the periods presented thus proforma financial presentation would be identical to our consolidated results. We began operating the new facility in June 2016.

NOTE 4 - CONCENTRATIONS OF REVENUES AND CREDIT RISK

We sell our products and services to companies in the chemical, plastics, and petroleum industries. We perform periodic credit evaluations of our customers and generally do not require collateral from our customers. For the year ended December 31, 2018, one customer accounted for 17.0% of consolidated product revenue. For the year ended December 31, 2017, one customer accounted for 19.6% of petrochemicalconsolidated product revenue. For the year ended December 31, 2016, one customer accounted for 20.1% of petrochemical product revenue.  For the year ended December 31, 2015, one customer accounted for 20.1% of petrochemicalconsolidated product revenue. The associated accounts receivable balances for those customers were approximately $11.0 million at December 31, 2018, and $5.8 million at December 31, 2017, and $5.1 million at December 31, 2016.2017. The carrying amount of accounts receivable approximates fair value at December 31, 2017,2018, and 2016.

2017.
Accounts receivable serves as collateral for our amended and restated loan agreement (see Note 13)12).

We market our products in many foreign jurisdictions. For the years ended December 31, 2018, 2017 and 2016, and 2015,specialty petrochemical product sales revenue in foreign jurisdictions accounted for approximately 20.8%35.4%, 23.5%20.8%, and 26.0%23.5% of total product sales revenue, respectively.

SHR utilizes one major supplier for its feedstock supply. The feedstock is a commodity product commonly available from other suppliers if needed. The percentage of feedstock purchased from the supplier during 2018, 2017, 2016, and 20152016 was 100% 99.4%, 100.0% and 100%99%, respectively. At December 31, 2017,2018, and 2016,2017, we owed the supplier approximately $8.5$4.7 million and $3.7$8.5 million, respectively for feedstock purchases.

We hold our cash with various financial institutions that are insured by the Federal Deposit Insurance Corporation up to $250,000. At times during the year, cash balances may exceed this limit. We have not experienced any losses in such accounts and do not believe we are exposed to any significant risk of loss related to cash.

NOTE 5 – FAIR VALUE MEASUREMENTSTRADE RECEIVABLES

The carrying value of cash and cash equivalents, tradeTrade receivables, taxes receivable, accounts payable, accrued liabilities, and other liabilities approximate fair value due to the immediate or short-term maturity of these financial instruments. The fair value of variable rate long term debt and notes payable reflect recent market transactions and approximate carrying value.  We used other observable inputs that would qualify as Level 2 inputs to make our assessment of the approximate fair value of our cash and cash equivalents, trade receivables, taxes receivable, accounts payable, accrued liabilities, other liabilities, notes payable and variable rate long term debt.  The fair value of the derivative instruments are described below.

We measure fair value by ASC Topic 820 Fair Value.  ASC Topic 820 defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements.  ASC Topic 820 applies to reported balances that are required or permitted to be measured at fair value under existing accounting pronouncements; accordingly, the standard amends numerous accounting pronouncements but does not require any new fair value measurements of reported balances. ASC Topic 820 emphasizes that fair value, among other things, is based on exit price versus entry price, should include assumptions about risk such as nonperformance risk in liability fair values, and is a market-based measurement, not an entity-specific measurement. When considering the assumptions that market participants would use in pricing the asset or liability, ASC Topic 820 establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity's own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). The fair value hierarchy prioritizes inputs used to measure fair value into three broad levels.




Level 1 inputsLevel 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access.
Level 2 inputsLevel 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly.  Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals.
Level 3 inputsLevel 3 inputs are unobservable inputs for the asset or liability, which is typically based on an entity's own assumptions, as there is little, if any, related market activity.

In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Commodity Financial Instruments

We periodically enter into financial instruments to hedge the cost of natural gasoline (the primary feedstock) and natural gas (used as fuel to operate the plants).  We use financial swaps on feedstock and options on natural gas to limit the effect of significant fluctuations in price on operating results.

We assess the fair value of the financial swaps on feedstock using quoted prices in active markets for identical assets or liabilities (Level 1 of fair value hierarchy).  At December 31, 2017, and 2016, we had no derivative contracts outstanding.  For additional information see Note 22.

Interest Rate Swaps

In March 2008 we entered into an interest rate swap agreement with Bank of America related to the $10.0 million term loan secured by plant, pipeline and equipment.  The interest rate swap was designed to minimize the effect of changes in the LIBOR rate.  We had designated the interest rate swap as a cash flow hedge under ASC Topic 815 (see Note 22); however, due to the new debt agreements associated with the Acquisition, we believed that the hedge was no longer entirely effective.  The agreement terminated in December 2017.

We assessed the fair value of the interest rate swap using a present value model that includes quoted LIBOR rates and the nonperformance risk of the Company and Bank of America based on the Credit Default Swap Market (Level 2 of fair value hierarchy).

Since the agreement terminated in December 2017, there was no outstanding liabilitynet, at December 31, 2017.  The following item was measured at fair value onconsisted of the following:
 2018
 2017
 (thousands of dollars)
Trade receivables$27,564
 $26,079
Less allowance for doubtful accounts(452) (300)
    
Trade receivables, net$27,112

$25,779
Trade receivables serves as collateral for our amended and restated loan agreement with a recurring basis at December 31, 2016:domestic bank (see Note 12).

 Fair Value Measurements Using
December 31, 2016
TotalLevel 1Level 2Level 3
 (thousands of dollars)
Liabilities:    
Interest rate swap$ 58            $     -$ 58  $     -

We have consistently applied valuation techniques in all periods presented and believe we have obtained the most accurate information available for the types of derivative contracts we hold.

NOTE 6 – TRADE RECEIVABLES

Trade receivables, net, at December 31, 2017, and 2016, respectively, consisted of the following:


  2017  2016 
  (thousands of dollars) 
       
Trade receivables $26,079  $22,493 
Less allowance for doubtful accounts  (300)  (300)
         
  Trade receivables, net $25,779  $22,193 

Trade receivables serves as collateral for our amended and restated loan agreement with a domestic bank (see Note 13).

NOTE 7 – PREPAID EXPENSES AND OTHER ASSETS

Prepaid expenses and other assets at December 31 are summarized as follows:

  2017  2016 
  (thousands of dollars) 
Prepaid license $1,919  $1,919 
Prepaid catalyst  779   187 
Prepaid insurance  -   797 
Spare parts  954   - 
Other prepaid expenses and assets  772   608 
   Total $4,424  $3,511 

 2018 2017
 (thousands of dollars)
Prepaid license$2,419
 $1,919
Spare parts1,597
 954
Other prepaid expenses and assets648
 772
Total$4,664

$3,645
Beginning January 1, 2017, due to the expansion of our plant assets at SHR and TC, we began inventorying spare parts for the repair and maintenance of our plant, pipeline and equipment. Prepaid catalyst has been reclassified into Plant, Pipeline & Equipment to conform to current year reporting.

NOTE 87 – INVENTORIES

Inventories include the following at December 31:

  2017  2016 
  (thousands of dollars) 
       
Raw material $3,703  $3,627 
Work in process  27   12 
Finished products  14,720   14,232 
         
Total inventory $18,450  $17,871 

 2018
 2017
 (thousands of dollars)
Raw material$4,742
 $3,703
Work in process173
 27
Finished products11,624
 14,720
    
Total inventory$16,539
 $18,450
Inventory serves as collateral for our amended and restated loan agreement with a domestic bank (see Note 13)12).

Effective January 1, 2017, we changed the inventory basis of SHR to FIFO.  We believe that the use of FIFO more accurately reflects current inventory valuation.  The drop in crude oil prices over the last several years has caused LIFO value of inventory to be above the FIFO value for each period presented.  There was no LIFO reserve in any of the periods in this filing; therefore, no change is reflected in our current statements for the retrospective application.

Prior to this change, the difference between the calculated value of inventory under the FIFO and LIFO bases generated either a recorded LIFO reserve (i.e., where FIFO value exceeds the LIFO value) or an unrecorded negative LIFO reserve (i.e., where LIFO value exceeds the FIFO value).  In the latter case, in order to ensure that inventory was reported at the lower of cost or market and in accordance with ASC 330-10, we did not increase the stated value of our inventory to the LIFO value.  At December 31, 2016, LIFO value of petrochemical inventory exceeded FIFO; therefore, in accordance with the above policy, no LIFO reserve was recorded.

Inventory included products in transit valued at approximately $3.7$4.1 million and $2.1$3.7 million at December 31, 2018, and 2017, respectively.
NOTE 8 – PLANT, PIPELINE AND EQUIPMENT
Plant, pipeline and equipment include the following at December 31:
 2018
 2017
 (thousands of dollars)
Platinum catalyst$1,612
 $1,612
Catalyst3,131
 779
Land5,428
 5,428
Plant, pipeline and equipment253,905
 186,946
Construction in progress4,343
 50,996
Total plant, pipeline and equipment268,419
 245,761
Less accumulated depreciation(73,762) (63,240)
Net plant, pipeline and equipment$194,657
 $182,521
Plant, pipeline and equipment serve as collateral for our amended and restated loan agreement with a domestic bank (see Note 12).
Interest capitalized for construction for 2018, 2017 and 2016 was approximately $731,000, $937,000 and $450,000, respectively.
Labor capitalized for construction for 2018, 2017 and 2016 was approximately $2,307,000, $4,344,000 and $2,889,000, respectively.
Catalyst amortization relating to the platinum catalyst which is included in cost of sales was approximately $59,000, $25,000 and $98,000 for 2018, 2017 and 2016, respectively.

NOTE 9 – PLANT, PIPELINE AND EQUIPMENT

Plant, pipeline and equipment include the following at December 31:

  2017  2016 
  (thousands of dollars) 
Platinum catalyst $1,612  $1,612 
Land  5,428   5,376 
Plant, pipeline and equipment  186,946   154,107 
Construction in progress  50,996   33,391 
Total plant, pipeline and equipment  244,982   194,486 
    Less accumulated depreciation  (63,240)  (54,477)
Net plant, pipeline and equipment $181,742  $140,009 

Plant, pipeline and equipment serve as collateral for our amended and restated loan agreement with a domestic bank (see Note 13).

Interest capitalized for construction for 2017, 2016 and 2015 was approximately $937,000, $450,000 and $141,000, respectively.

Labor capitalized for construction for 2017, 2016 and 2015 was approximately $4,344,000, $2,889,000 and $3,803,000, respectively.

Catalyst amortization relating to the platinum catalyst which is included in cost of sales was approximately $25,000, $98,000 and $84,000 for 2017, 2016 and 2015, respectively.

NOTE 10 – GOODWILL AND INTANGIBLE ASSETS, NET

Goodwill

We performed an impairment analysis on the value of Goodwill at December 31, 2017,2018, and 2016,2017, and determined that no impairment existed.

Intangible Assets

The following table summarizes the gross carrying amounts and accumulated amortization of intangible assets by major class (in thousands):

 December 31, 2017 December 31, 2018
Intangible assets subject to amortization
(Definite-lived)
 Gross  
Accumulated
Amortization
  Net Gross
 
Accumulated
Amortization

 Net
Customer relationships $16,852  $(3,651) $13,201 $16,852
 $(4,775) $12,077
Non-compete agreements  94   (61)  33 94
 (80) 14
Licenses and permits  1,471   (390)  1,081 1,471
 (495) 976
Developed technology  6,131   (1,993)  4,138 6,131
 (2,606) 3,525
  24,548   (6,095)  18,453 24,548

(7,956)
16,592
Intangible assets not subject to amortization
(Indefinite-lived)
                 
Emissions Allowance  197   -   197 197
 
 197
Trade name  2,158   -   2,158 2,158
 
 2,158
Total $26,903  $(6,095) $20,808 $26,903
 $(7,956) $18,947
F-19

 December 31, 2016 December 31, 2017
Intangible assets subject to amortization
(Definite-lived)
 Gross  
Accumulated
Amortization
  Net Gross
 
Accumulated
Amortization

 Net
Customer relationships $16,852  $(2,527) $14,325 $16,852
 $(3,651) $13,201
Non-compete agreements  94   (43)  51 94
 (61) 33
Licenses and permits  1,471   (285)  1,186 1,471
 (390) 1,081
Developed technology  6,131   (1,379)  4,752 6,131
 (1,993) 4,138
  24,548   (4,234)  20,314 24,548

(6,095)
18,453
Intangible assets not subject to amortization
(Indefinite-lived)
                 
Emissions Allowance  197   -   197 197
 
 197
Trade name  2,158   -   2,158 2,158
 
 2,158
Total $26,903  $(4,234) $22,669 $26,903

$(6,095)
$20,808
Amortization expense for intangible assets included in cost of sales for the years ended December 31, 2018, 2017, 2016, and 2015,2016, was approximately $1,861,000, $1,861,000, and $1,880,000 and $1,883,000 respectively.

Based on identified intangible assets that are subject to amortization as of December 31, 2017,2018, we expect future amortization expenses for each period to be as follows (in thousands):

  Total  
2018
  
2019
  
2020
  
2021
 ��
2022
  
Thereafter
 
Customer relationships $13,202  $1,123  $1,123  $1,123  $1,123  $1,123  $7,587 
Non-compete agreements  32   19   13   -   -   -   - 
Licenses and permits  1,081   106   106   106   106   86   571 
Developed technology  4,138   613   613   613   613   613   1,073 
Total future amortization expense $18,453  $1,861  $1,855  $1,842  $1,842  $1,822  $9,231 
 Total
 2019
 2020
 2021
 2022
 2023
 Thereafter
Customer relationships$12,077
 $1,123
 $1,123
 $1,123
 $1,123
 $1,123
 $6,462
Non-compete agreements14
 14
 
 
 
 
 
Licenses and permits976
 106
 106
 101
 86
 86
 491
Developed technology3,525
 613
 613
 613
 613
 613
 460
Total future amortization expense$16,592

$1,856

$1,842

$1,837

$1,822

$1,822

$7,413

NOTE 1110 - INVESTMENT IN AL MASANE AL KOBRA MINING COMPANY ("AMAK")

We have concluded that we have significant influence over the operating and financial policies of AMAK and, accordingly, should account for our investment in AMAK using the equity method. As of December 31, 2017,2018, and 2016,2017, we had a non-controlling equity interest of approximately $38.7 million and $45.1 million, and $49.4 million, respectively.

We have received and attached to this Form 10-K the financial statements of AMAK prepared in accordance with generally accepted accounting principles in the United States of America as of December 31, 2017,2018, and 2016,2017, and for each of the three

years ended December 31, 2017.2018. These financial statements have been prepared in the functional currency of AMAK which is the Saudi Riyal (SR). In June 1986 the SR was officially pegged to the U.S. Dollar (USD) at a fixed exchange rate of 1 USD to 3.75 SR.

The summarized results of operation and financial position for AMAK are as follows:

Results of Operations

  Years Ended December 31, 
  2017  2016  2015 
  (Thousands of Dollars) 
Sales $36,435  $9,921  $50,744 
Gross loss  (6,869)  (17,211)  (10,437)
General, administrative and other expenses  9,903   9,690   8,796 
Loss from operations $(16,772) $(26,901) $(19,233)
Gain on settlement with former operator  -   17,425   - 
Net loss $(16,772) $(9,476) $(19,233)
Depreciation and amortization for the years ended December 31, 2017, 2016, and 2015 was $22.4 million, $11.7 million and $23.2 million, respectively.  Therefore, net income before depreciation and amortization was as follows:

  Years Ended December 31, 
  2017  2016  2015 
  (Thousands of Dollars) 
Net income before depreciation and amortization $5,647  $2,196  $4,016 

 Years Ended December 31,
 2018
 2017
 2016
 (Thousands of Dollars)
Sales$70,234
 $36,435
 $9,921
Cost of sales(68,084) (43,304) (27,132)
Gross loss2,150
 (6,869) (17,211)
General, administrative and other expenses8,879
 9,903
 9,690
Loss from operations$(6,729) $(16,772) $(26,901)
Gain on settlement with former operator
 
 17,425
Net loss$(6,729) $(16,772)
$(9,476)
Depreciation and amortization33,469
 22,419
 11,672
Net income before depreciation and amortization$26,740
 $5,648
 $2,196
Financial Position

  December 31, 
  2017  2016 
  (Thousands of Dollars) 
Current assets $23,333  $22,860 
Noncurrent assets  237,875   251,741 
Total assets $261,208  $274,601 
         
Current liabilities $24,439  $8,005 
Long term liabilities  68,837   82,546 
Shareholders' equity  167,932   184,050 
Total liabilities and equity $261,208  $274,601 

 December 31,
 2018
 2017
 (Thousands of Dollars)
Current assets$44,093
 $23,333
Noncurrent assets212,291
 237,875
Total assets$256,384

$261,208
    
Current liabilities$17,160
 $24,439
Long term liabilities77,366
 68,837
Shareholders' equity161,858
 167,932
Total liabilities and equity$256,384

$261,208
The equity in the income or loss of AMAK reflected on the consolidated statements of income for the years ended December 31, 2018, 2017, 2016, and 2015,2016, is comprised of the following:

  2017  2016  2015 
AMAK Net Loss $(16,772) $(9,476) $(19,233)
Zakat tax applicable to Saudi Arabian shareholders only  -   320   303 
AMAK Net Loss before Saudi Arabian shareholders' portion of Zakat $(16,772) $(9,156) $(18,930)
             
Company's share of loss reported by AMAK (33.44% beginning July 10, 2016 and  35.25% prior to July 10, 2016) $(5,608) $(2,826) $(6,672)
Amortization of difference between Company's investment in AMAK            
  and Company's share of net assets of AMAK  1,347   1,347   1,347 
Equity in loss of AMAK $(4,261) $(1,479) $(5,325)

 2018
 2017
 2016
AMAK Net Loss$(6,729) $(16,772) $(9,476)
Zakat tax applicable to Saudi Arabian shareholders only
 
 320
AMAK Net Loss before Saudi Arabian shareholders' portion of Zakat$(6,729)
$(16,772)
$(9,156)
      
Company's share of loss reported by AMAK (33.41% beginning July 10, 2016 and 35.25% prior to July 10, 2016)$(2,248) $(5,608) $(2,826)
Amortization of difference between Company's investment in AMAK     
and Company's share of net assets of AMAK1,347
 1,347
 1,347
Equity in loss of AMAK$(901)
$(4,261)
$(1,479)
In 2016 the difference between our effective share of income (loss) from our investment and our actual ownership percentage is attributable to the change in our ownership percentage during the third quarter of 2016.

A gain of approximately $16.2 million for the difference between our initial investment in AMAK and our share of AMAK's initial assets recorded at fair value was not recognized in 2008. This basis difference is being amortized over the life of AMAK's

mine which is estimated to be twelve years beginning with its commencement of production in July 2012 as an adjustment to our equity in AMAK's income or loss.

In July 2016 AMAK issued four million shares to provide additional funds for ongoing exploration work and mine start-up activities. Arab Mining Co. ("Armico") purchased 3.75 million shares at SR 20 per share (USD$(USD 5.33 per share) and the remaining 250,000 shares are for future use as employee incentives. We did not participate in the
offering, thereby reducing our ownership percentage in AMAK to 33.44% from 35.25%. As a result of the equity issuance, our share of the net assets of AMAK increased approximately $3.2 million which we recognized as a gain (with a corresponding increase in our investment) in accordance with ASC 323-10-40-1.
In 2018, we completed an exchange of shares with certain shareholders whereby such shareholders traded 65,000 common shares of TREC in exchange for 24,489 shares of our AMAK stock.  The 65,000 shares were accounted for as treasury stock.  This transaction reduced our ownership percentage from 33.44% to 33.41%.

The following table shows AMAK shareholders and percentages owned at December 31, 2017:2018:

Name
NamePercentage Owned
Various Saudi shareholders46.73%
Trecora Resources33.4433.41%
Armico19.8319.86%
Total100.00%

As previously announced, AMAK initiated a share repurchase program from its existing shareholders in December 2018. We participated in this share repurchase and received approximately $5.3 million in proceeds from AMAK. We had previously reported, based on information available at the time, that AMAK was repurchasing 10% of its outstanding shares from its existing shareholders on a pro-rata basis. We have since learned that, while a redemption of up to 10% of AMAK's 82 million outstanding shares had been approved by the shareholders, the repurchase program approved by AMAK's board of directors and initiated in December 2018 was with respect to 2.5 million shares. AMAK expects to complete the share repurchase program in 2019, at which point all shares repurchased from AMAK shareholders will be registered as treasury shares. Upon completion of the share repurchase program, the Company does not believe its ownership percentage in AMAK will change from 33.4%.
At December 31, 2018 and 2017, we had a receivable from AMAK of approximately $54,000 and $121,000, respectively, relating to unreimbursed travel and Board expenses which is included in prepaid and other assets.

We assess our investment in AMAK for impairment when events are identified, or there are changes in circumstances that may have an adverse effect on the fair value or recoverability of the investment. We consider recoverable ore reserves and the amount and timing of the cash flows to be generated by the production of those reserves, as well as, recent equity transactions within AMAK. No impairment charges were recorded in 2018, 2017, 2016, or 2015.2016.
NOTE 11 - MINERAL PROPERTIES IN THE UNITED STATES
The principal assets of PEVM are an undivided interest in 48 patented and 5 unpatented mining claims totaling approximately 1,500 acres, and a 300 ton-per-day mill located on the aforementioned properties in the PEVM Mining District in southeast Nevada.  In August 2001 seventy-five unpatented claims were abandoned since they were deemed to have no future value to PEVM.  The properties held by PEVM have not been commercially operated for approximately 35 years.

NOTE 12 - MINERAL PROPERTIES IN THE UNITED STATES

The principal assets of PEVM are an undivided interest in 48 patented and 5 unpatented mining claims totaling approximately 1,500 acres, and a 300 ton-per-day mill located on the aforementioned properties in the PEVM Mining District in southeast Nevada.  In August 2001 seventy five unpatented claims were abandoned since they were deemed to have no future value to PEVM.  The properties held by PEVM have not been commercially operated for approximately 35 years.

NOTE 13 - LONG-TERM DEBT AND LONG-TERM OBLIGATIONS

Long-term debt and long-term obligations at December 31 are summarized as follows:ARC Agreement

  2017  2016 
  (thousands of dollars) 
  Revolving note to domestic banks (A) $35,000  $9,000 
  Term note to domestic banks (B)  47,250   56,000 
  Term note to domestic banks (C)  17,333   19,000 
  Loan fees  (501)  (748)
         
     Total long-term debt  99,082   83,252 
         
  Less current portion including loan fees  8,061   10,145 
         
     Total long-term debt, less current portion including loan fees $91,021  $73,107 

Loan fees are capitalized and amortized on a straight line basis over the life of the loan, which approximates the effective interest method.  Loan fees of $501,000 and $748,000 net of accumulated amortization are included with long term debt and long term obligations at December 31, 2017 and 2016.  Amortization of loan fees amounted to approximately $247,000, $272,000, and $272,000 for the years ended December 31, 2017, 2016, and 2015, respectively.
(A) OnIn October 1, 2014, TOCCO, SHR, GSPL and TC (SHR, GSPL and TC collectively the "Guarantors"“Guarantors”) entered into an Amendedamended and Restated Credit Agreement ("ARC Agreement"restated credit agreement (as amended to the date hereof, the “ARC Agreement”), which originally provided (i) a revolving credit facility (the “Revolving Facility”) with revolving commitments of $40.0 million and (ii) term loan borrowings consisting of (A) a $70.0 million single advance term loan incurred to partially finance the lendersacquisition of TC (which we refer to as the “Acquisition loan”) and (B) a $25.0 multiple advance term loan facility for which from time to time are partiesborrowing availability ended on December 31, 2015 (collectively, the “Term Loan Facility” and, together with the Revolving Facility, the “Credit Facilities”).

Only July 31, 2018, TOCCO and the Guarantors entered into a Fourth Amendment to the ARC Agreement (collectively,(the “Fourth Amendment”) pursuant to which the
       "Lenders") and Bank revolving commitments under the Revolving Facility were increased to $75.0 million. Pursuant to the Fourth Amendment, total borrowings under the Term Loan Facility were increased to $87.5 million under a single combined term loan, which comprised new term loan borrowings together with approximately $60.4 million of America, N.A., a national banking association, as Administrative Agent for the Lenders, and Merrill Lynch, Pierce, Fenner & Smith Incorporated as Lead Arranger.previously

On March 28, 2017,previously outstanding term loans included the remaining outstanding balances on the Acquisition loan and the multiple advance term loan facility described above. Proceeds of the new borrowings under the Term Loan Facility were used to repay a portion of the outstanding borrowings under the Revolving Facility and pay fees and expenses of the transaction. As of December 31, 2018, we entered into a Second Amendmenthad $18 million in borrowings outstanding under the Revolving Facility and $84.5 million in borrowings outstanding under the Term Loan Facility. In addition, we had approximately $18 million of available borrowings under our Revolving Facility at December 31, 2018. TOCCO’s ability to make additional borrowings under the Revolving Credit Facility at December 31, 2018 was limited by, and in the future may be limited by our obligation to maintain compliance with the covenants contained in the ARC with terms which increased the MaximumAgreement (including maintenance of a maximum Consolidated Leverage Ratio financial covenant of 3.25x to 4.00x at March 31, 2017, and 4.25x at June 30, 2017, before stepping down to 3.75x at September 30, 2017, 3.50x at December 31, 2017, and reverting to the original financial covenant of 3.25x at March 31, 2018.

For Fiscal Quarter Ending
Maximum Consolidated Leverage Ratio
March 31, 20174.00 to 1.00
June 30, 20174.25 to 1.00
September 30, 20173.75 to 1.00
December 31, 20173.50 to 1.00
March 31, 2018 and each fiscal quarter thereafter3.25 to 1.00

The Second Amendment also reduced the Minimumminimum Consolidated Fixed Charge Coverage Ratio of 1.25x to 1.10x at March(each as defined in the ARC Agreement)).

The maturity date for the ARC Agreement is July 31, 2017, 1.05x at June 30, 2017 and September 30, 2017, 1.10x at December 31, 2017, before reverting2023. Subject to the original financial covenantlenders acceptance of 1.25xany increased commitment and other conditions, we have the option, at March 31, 2018.

For Fiscal Quarter Ending
Minimum Consolidated
Fixed Charge Coverage Ratio
March 31, 20171.10 to 1.00
June 30, 20171.05 to 1.00
September 30, 20171.05 to 1.00
December 31, 20171.10 to 1.00
March 31, 2018 and each fiscal quarter thereafter1.25 to 1.00

Also, under the terms of the Second Amendment, two additional levels of pricing were added – levels 4 and 5.

LevelConsolidated Leverage RatioLIBOR MarginBase Rate MarginCommitment Fee
1Less than 1.50 to 1.002.00%1.00%0.25%
2Greater than or equal to 1.50 to 1.00 but less than 2.00 to 1.002.25%1.25%0.25%
3Greater than or equal to 2.00 to 1.00 but less than 3.00 to 1.002.50%1.50%0.375%
4Greater than or equal to 3.00 to 1.00 but less than 3.50 to 1.002.75%1.75%0.375%
5Greater than or equal to 3.50 to 1.003.00%2.00%0.375%

On July 25, 2017, Texas Oil & Chemical Co. II, Inc. ("TOCCO"), South Hampton Resources, Inc. ("SHR"), Gulf State Pipe Line Company, Inc. ("GSPL"), and Trecora Chemical, Inc. ("TC") (SHR, GSPL and TC collectively the "Guarantors") entered into a Third Amendment to Amended and Restated Credit Agreement ("3rd Amendment") with the lenders which fromany time, to time are partiesrequest an increase to the Amended and Restated Credit  Agreement (collectively, the "Lenders") and Bank of America, N.A., a national banking association, as Administrative Agent for the Lenders.  The Third Amendment increasedcommitment under the Revolving Facility from $40,000,000and/or the Term Loan Facility by an additional amount of up to $60,000,000.  There were no other changes to$50.0 million in the Revolving Facility.aggregate.

Subject to the terms and conditionsBorrowings under each of the ARC Agreement as amended, TOCCO may (a) borrow, repay and re-borrow revolving loans (collectively,Credit Facilities bear interest on the "Revolving Loans") from timeoutstanding principal amount at a rate equal to time during the period ending September 30, 2019, up to but not exceeding at any one time outstanding $60.0 million (the "Revolving Loan Commitment") and (b) request up to $5.0 million of letters of credit and $5.0 million of swingline loans.  Each of the issuance of letters of credit and the advance of swingline loans shall be considered usage of the Revolving Loan Commitment.  All outstanding loans under the Revolving Loans must be repaid on October 1, 2019. 
As of December 31, 2017, and 2016, TOCCO had long-term outstanding borrowings under the Revolving Loans of $35.0 million and $9.0 million, respectively.  At December 31, 2017, approximately $25.0 million was available to be drawn.

(B)Under the ARC Agreement, TOCCO also borrowed $70.0 million in a single advance term loan (the "Acquisition Term Loan") to partially finance the Acquisition.  At December 31, 2017, there was a short-term amount of $7.0 million and a long-term amount of $40.3 million outstanding.  At December 31, 2016, there was a short-term amount of $8.8 million and a long-term amount of $47.3 million outstanding.

(C)Under the ARC Agreement, TOCCO also has the right to borrow $25.0 million in a multiple advance loan (the "Term Loans," together with the Revolving Loans and Acquisition Term Loan, collectively the "Loans").  Borrowing availability under the Term Loans ended on December 31, 2015.  The Term Loans convert from a multiple advance loan to a "mini-perm" loan once TOCCO has fulfilled certain obligations such as certification that construction of D Train was completed in a good and workmanlike manner, receipt ofLIBOR plus an applicable permits and releases from governmental authorities, and receipt of releases of liens from the contractor and each subcontractor and supplier.  The Loans also include a $40.0 million uncommitted increase option (the "Accordion Option").  As of December 31, 2016, TOCCO had borrowed funds under the agreement aggregating $20.0 million with no additional availability remaining.  At December 31, 2017, there was a short-term amount of $1.3 million and a long-term amount of $16.0 million outstanding.  At December 31, 2016, there was a short-term amount of $1.7 million and a long-term amount of $17.3 million outstanding.

All of the Loans under the ARC Agreement will accrue interest at the lower of (i) a London interbank offered rate ("Eurodollar Rate") plus a margin of between 2.00% and1.25% to 2.50% or, at our option, the Base Rate plus an applicable margin of 0.25% to 1.50% , in each case, with the applicable margin being determined based on the total leverage ratioConsolidated Leverage Ratio of TOCCOTOCCO. A commitment fee between 0.20% and its subsidiaries on a consolidated basis, or (ii) a base rate ("Base Rate") equal to the highest of the federal funds rate plus 0.50%, the rate announced by Bank of America, N.A. as its prime rate, and Eurodollar Rate plus 1.0%, plus a margin of between 1.00% to 1.50% based on the total leverage ratio of TOCCO and its subsidiaries on a consolidated basis.  The Revolving Loans accrue a commitment fee0.375% is also payable quarterly on the unused portion thereof at aof the Revolving Facility. For 2018, the effective interest rate between 0.25% and 0.375%for the Credit Facilities was 4.19%. Borrowings under the Term Loan Facility are subject to quarterly amortization payments based on the total leverage ratio of TOCCO and its subsidiaries on a consolidated basis.  Interest on the Revolving Loans is payable quarterly, with principal due and payable at maturity.  Interest on the Acquisition Term Loan is payable quarterly using a ten year commercial style amortization commencing on December 31, 2014.  The Acquisition Term Loan is also payable as to principal beginning on December 31, 2014, and continuing on the last business day of each March, June, September and December thereafter, each payment in an amount equal to $1,750,000,method over a twenty year period; provided, that the final principal installment will be paid on the September 30, 2019, maturity date shalland will be in an amount equal to the then outstanding unpaid principal balance of the Acquisition Term Loan.  Interest onborrowings under the Term Loans is payable quarterly using a fifteen year commercial style amortization, with interest only through December 31, 2015, and quarterly principal payments of $333,333 commencedLoan Facility on March 31, 2016.  Interest on the Loans is computed (i) in the case of Base Rate Loans, on the basis of a 365-day or 366-day year, as the case may be, and (ii) in the case of Eurodollar Rate Loans, on the basis of a 360-day year, in each case for the actual number of days elapsed in the period during which it accrues.  At December 31, 2017, the variable interest rate under the loans was 4.07%.such date.

The Loans may be prepaid in whole or in part without premium or penalty (Eurodollar Rate Loans are prepayable only on the last days of related interest periods or upon payment of any breakage costs) and the lenders' commitments relative thereto reduced or terminated.  Subject to certain exceptions and thresholds, outstanding Loans shall be prepaid by an amount equal to 100% of the net cash proceeds from: (i) all sales, transfers, licenses, lease or other disposition of any property by TOCCO and Guarantors (other than a permitted transfer); (ii) any equity issuance by TOCCO or the Guarantors; (iii) any debt issuance by TOCCO or the Guarantors; or (iv) the receipt of any cash received by TOCCO or the Guarantors not in the ordinary course of business.  Amounts prepaid in connection with the mandatory repayments described above will be applied first,Pursuant to the principal repayment installmentsterms of the Acquisition Term Loan in inverse order of maturity, second, to the principal repayment installments of the Term Loans in inverse order of maturity and, third, to the Revolving Loans in the manner set forth in the Amended and Restated Credit Agreement.

All amounts owing under the ARC Agreement, TOCCO must maintain a maximum Consolidated Leverage Ratio of 4.75 to 1.00 for the four fiscal quarters ended December 31, 2018, 4.25 to 1.00 for the four fiscal quarters ended March 31, 2019, 4.00 to 1.00 for the four fiscal quarters ended June 30, 2019 and all obligations under3.75 to 1.00 for the guarantees will be secured in favorfour fiscal quarters ended September 30, 2019. For the four fiscal quarters ended December 31, 2019 and each fiscal quarter thereafter, TOCCO must maintain a Consolidated Leverage Ratio of 3.50 to 1.00 (subject to temporary increase following certain acquisitions). Additionally, TOCCO must maintain a minimum Consolidated Fixed Charge Coverage Ratio as of the Lenders by substantially allend of the assetsany fiscal quarter of TOCCO and its subsidiaries and guaranteed by its subsidiaries.1.15 to 1.00.

The ARC Agreement contains, among other things, other customary covenants, including restrictions on the incurrence of additional indebtedness, the granting of additional liens, the making of investments, the disposition of assets and other fundamental changes, the transactions with affiliates and the declaration of dividends and other restricted payments. The ARC Agreement further includes customary representations and warranties and events of default, and upon occurrence of such events of default the outstanding obligations under the ARC Agreement may be accelerated and become immediately due and payable and the commitment of the Lenderslenders to make loans under the ARC Agreement may be terminated. TOCCO wasWe were in compliance with all covenants at December 31, 2017.2018.

Principal payments of long-term debt for the next twofive years and thereafter ending December 31 are as follows:
Year Ending December 31,
 Long-Term Debt 
  (thousands of dollars) 
2018 $8,333 
2019  91,250 
Total $99,583 

Year Ending December 31,Long-Term Debt
 (thousands of dollars)
20194,375
20204,375
20214,375
20224,375
202385,812
Total103,312


Debt Issuance Costs

Debt issuance costs of approximately $0.9 million were incurred in connection with the Fourth Amendment and the remaining debt issuance costs of $0.3 million from the previous agreements were expensed and are shown as a loss on the extinguishment of debt on the consolidated statements of operations for the year ended December 31, 2018. Unamortized

debt issuance costs of approximately $0.8 million and$0.5 million for the years ended December 31, 2018 and December 31, 2017, have been netted against outstanding loan balances.

Long-term debt and long-term obligations at December 31 are summarized as follows:
 2018
 2017
 (thousands of dollars)
Revolving facility$18,000
 $35,000
Term loan facility85,312
 47,250
Acquisition loan
 17,333
Loan fees(830) (501)
    
Total long-term debt102,482

99,082
    
Less current portion including loan fees4,194
 8,061
    
Total long-term debt, less current portion including loan fees$98,288

$91,021
NOTE 13 – ACCRUED LIABILITIES
Accrued liabilities at December 31 are summarized as follows:
 2018
 2017
 (thousands of dollars)
Accrued state taxes$210
 $272
Accrued payroll936
 1,407
Accrued interest31
 30
Accrued officer compensation
 500
Accrued restructuring & severance expenses (Note 21)1,221
 
Accrued foreign taxes802
 
Other liabilities2,239
 1,752
Total$5,439
 $3,961
NOTE 14 – ACCRUED LIABILITIES

Accrued liabilities at December 31 are summarized as follows:

  2017  2016 
  (thousands of dollars) 
Accrued state taxes $272  $81 
Accrued payroll  1,407   1,097 
Accrued interest  30   33 
Accrued officer compensation  500   - 
Other liabilities  1,752   806 
   Total $3,961  $2,017 

NOTE 15 - COMMITMENTS AND CONTINGENCIES

Guarantees

On October 24, 2010, we executed a limited guarantee in favor of the Saudi Industrial Development Fund ("SIDF") whereby we agreed to guaranty up to 41% of the SIDF loan to AMAK in the principal amount of 330.0 million Saudi Riyals (US$88.0 million) (the "Loan"). The term of the loan is currently through June 2022. As a condition of the Loan, SIDF required all shareholders of AMAK to execute personal or corporate guarantees; as a result, the Company's guarantee is for approximately 135.3 million Saudi Riyals (US$36.1 million). The loan was necessary to continue construction of the AMAK facilities and provide working capital needs. Our current assessment is that the probability of contingent performance is remote based on our analysis of the contingent portion of the guarantee which included but was not limited to the following: (1) the SIDF has historically not called guarantees, (2) the value of the assets exceeds the amount of the loan (3) the other shareholders have indicated that they would prioritize their personal guarantees ahead of the corporate guarantee, and (4) according to Saudi Arabian legal counsel, assets outside of Saudi Arabia are protected from the Saudi Court System. We received no consideration in connection with extending the guarantee and did so to maintain and enhance the value of our investment. Our non-contingent and immediate obligation to stand ready to make payments if the events of default under the guarantee occur was not material to the financial statements. The total amount outstanding to the SIDF at December 31, 2017,2018, and 20162017 was 305.0 million and 310.0305.0 million Saudi Riyals (US$81.3 million and $82.7$81.3 million), respectively.

During 2017, AMAK did not make certain scheduled payments on their loan. AMAK obtained a waiver from SIDF regarding the missed payments and is currently working with SIDF to renegotiate the terms and repayment schedule of the loan agreement.  We do not believe that these events will result in any performance under our guarantee.

Operating Lease Commitments

We have operating leases for the rental of approximately 335346 railcars for shipping purposes with expiration dates through 2026. Invoices are received and paid on a monthly basis. The total amount of the commitment is approximately $17.8$17.3 million over the next 9 years.

We also have an operating lease for our office space in Sugar Land, TX.Texas. The expiration date for this lease is January 2018.September 2023. The total amount of the commitment is less than $10,000.  We are in the process of negotiating a new lease for the same space.approximately $587,000. In addition, we are required to make periodic payments for property taxes, utilities and common area operating expenses.

In addition, we have operating leases for other equipment such as forklifts and copiers with varying expiration dates through 2020.  The total amount of the commitment is less than $50,000.

2023. These commitments are approximately $207,000.
Future minimum property and equipment lease payments under the non-cancelable operating leases at December 31, 2017,2018, are as follows:

Year Ending December 31,
   
  (thousands of dollars) 
2018 $3,393 
2019  3,341 
2020  3,250 
2021  3,120 
2022  1,498 
Thereafter  3,177 
Total $17,779 

Year Ending December 31, 
 (thousands of dollars)
2019$3,670
20203,583
20213,418
20223,107
20232,288
Thereafter2,065
Total$18,131
Rental expense for these operating leases for the years ended December 31, 2018, 2017, 2016, and 20152016 was $4.4 million, $4.2$4.4 million and $4.2 million, respectively.

Litigation -

From time to time, we may become party to litigation or other legal proceedings that we consider to be a part of the ordinary course of our business. We are not currently involved in any legal proceedings that we believe could reasonably be expected to have a material adverse effect on our business, prospects, financial condition or results of operations. We may become involved in material legal proceedings in the future.

On March 21, 2011, Mr. El Khalidi filed suit against the Company in Texas alleging breach of contract and other claims. The 88th Judicial District Court of Hardin County, Texas dismissed all claims and counterclaims for want of prosecution in this matter on July 24, 2013. The Ninth Court of Appeals subsequently affirmed the dismissal for want of prosecution and the Supreme Court of Texas denied Mr. El Khalidi's petition for review. On May 1, 2014, Mr. El Khalidi refiled his lawsuit against the Company for breach of contract and defamation in the 356th Judicial District Court of Hardin County, Texas. The case was transferred to the 88th Judicial District Court of Hardin County, Texas. On September 1, 2016, theThe Trial Court dismissed all of Mr. El Khalidi's claims and causes of action with prejudice.  On November 9, 2017,prejudice and the 9thNinth Court of Appeals affirmed the Trial Court's dismissal.affirmed. Mr. El Khalidi
filed a petition for review with the Supreme Court of Texas, which was denied April 6, 2018. Mr. El Khalidi filed a motion for rehearing of his petition for review with the Supreme Court of Texas on JanuaryApril 23, 2018. LiabilitiesOn May 25, 2018, the Supreme Court of approximately $1.0 million remain recorded,Texas denied the motion for rehearing and the options will continue to accrue in accordance with their own terms until all matters are resolved.matter is considered closed.

Supplier Agreements

From time to time, we may incur shortfall fees due to feedstock purchases being below the minimum amounts as prescribed by our agreements with our suppliers. The shortfall fee expenses were not significant for the years ended December 31, 2018, 2017, 2016, and 2015.2016.

Environmental Remediation -

Amounts charged to expense for various activities related to environmental monitoring, compliance, and improvements were approximately $745,000 in 2018, $593,000 in 2017 and $622,000 in 2016 and $604,0002016.
NOTE 15 - SHARE-BASED COMPENSATION
The Stock Option Plan for Key Employees, as well as, the Non-Employee Director Stock Option Plan (hereinafter collectively referred to as the “Stock Option Plans”), were approved by the Company’s shareholders in 2015.July 2008. The Stock Option Plans allot for the issuance of up to 1,000,000 shares.

The Trecora Resources Stock and Incentive Plan (the “Plan”) was approved by the Company’s shareholders in June 2012. The Plan allots for the issuance of up to 1,500,000 shares in the form of stock options or restricted stock unit awards.


Share-based compensation of approximately $1.8 million, $2.7 million, and $2.6 million was recognized in 2018, 2017, and 2016, respectively. The Company reclassified approximately $318,000 for 2018 from share-based compensation expense in connection with the restructuring described in Note 21.

Stock Options and Warrant Awards

Stock options and warrants granted under the provisions of the Stock Option Plans permit the purchase of our common stock at exercise prices equal to the closing price of Company common stock on the date the options were granted. The options have terms of 10 years and generally vest ratably over terms of 4 to 5 years. There were no stock options or warrant awards issued during 2018, 2017, or 2016.

A summary of the status of the Company’s stock option and warrant awards is as follows:

 Stock Options and Warrants
 
Weighted
Average
Exercise
Price
Per Share

 
Weighted
Average
Remaining
Contractual
Life
 
Intrinsic
Value
(in thousands)

Outstanding at January 1, 20181,323,587
 $7.82
    
Granted
 
    
Expired
 
    
Exercised(377,757) 5.21
    
Forfeited(200,000) 3.40
    
Outstanding at December 31, 2018745,830
 $10.33
 4.6 $
Expected to vest
 $
 0.0 $
Exercisable at December 31, 2018745,830
 $10.33
 4.6 $

The aggregate intrinsic value of options was calculated as the difference between the exercise price of the underlying awards and the quoted price of our common stock. At December 31, 2018, options to purchase approximately 0.5 million shares of common stock were in-the-money.

Since no options were granted, the weighted average grant-date fair value per share of options granted during the years 2018, 2017, and 2016 was $0. During 2018, 2017, and 2016 the aggregate intrinsic value of options and warrants exercised was approximately $2,630,000, $164,000 and $237,000 respectively, determined as of the date of option exercise.

The Company received approximately $912,000, $25,000 and $11,000 in cash from the exercise of options during 2018, 2017 and 2016, respectively. Of the approximately 378,000 stock options and warrants exercised, the Company only issued approximately 268,000 shares due to cashless transactions. The tax benefit realized from the exercise was insignificant.

A summary of the status of the Company's non-vested options that are expected to vest is presented below:
 Shares
 
Weighted
Average
Grant-Date
Fair Value
Per Share

Non-vested at January 1, 2018325,000
 $6.81
Granted
 
Forfeited(200,000) 3.40
Vested(125,000) 12.26
Non-vested at December 31, 2018
 $
Total fair value of options that vested during 2018 was approximately $1,533,000.
As of December 31, 2018, there was no unrecognized compensation costs related to non-vested share-based compensation.
Post-retirement compensation of approximately $680,000 and $0 during the years ended December 31, 2018 and 2017, respectively, was reversed related to options awarded to Mr. Hatem El Khalidi in July 2009. On May 9, 2010, the Board of

Directors determined that Mr. El Khalidi forfeited these options and other retirement benefits when he made various demands against the Company and other AMAK shareholders which would benefit him personally and were not in the best interests of the Company and its shareholders. The Company was successful in litigating its right to withdraw the options and benefits and as such, these options and benefits were reversed during the second quarter of 2018. 
Restricted Stock and Restricted Stock Unit Awards
Generally, restricted stock and restricted stock unit awards are granted annually to officers and directors of the Company under the provisions of the Plan. Restricted stock units are also granted ad hoc to attract or retain key personnel, and the terms and conditions under which these restricted stock units vest vary by award. The fair market value of restricted stock units granted is equal to the Company’s closing stock price on the date of grant. Restricted stock units granted generally vest ratably over periods ranging from 2.5 to 5 years. Certain awards also include vesting provisions based on performance metrics. Upon vesting, the restricted stock units are settled by issuing one share of Company common stock per unit.

A summary of the status of the Company's restricted stock units activity is as follows:
 
Shares of Restricted
Stock Units

 Weighted Average Grant Date Price per Share
Outstanding at January 1, 2018387,702
 $11.39
Granted226,908
 11.45
Forfeited(103,637) 11.39
Vested(105,298) 11.99
Outstanding at December 31, 2018405,675
 $11.27
Expected to vest405,675
  
As of December 31, 2018, there was approximately $2.5 million of unrecognized compensation costs related to non-vested restricted share-based compensation that is expected to be recognized over a weighted average period of 1.9 years.
NOTE 16 – INCOME TAXES
The provision for income taxes consisted of the following:
 Year ended December 31,
 2018
 2017
 2016
 (thousands of dollars)
Current federal provision (benefit)$(74) $(1,202) $1,691
Current state provision31
 282
 18
      
Deferred federal provision (benefit)(974) (6,320) 8,645
Deferred state provision210
 81
 150
      
Income tax expense (benefit)$(807)
$(7,159)
$10,504
In connection with the AMAK share repurchase discussed in Note 10, the Company anticipates a Saudi Arabian income tax liability of approximately $802,000. This amount is included in accrued liabilities and will be paid once the transaction is complete. We had no Saudi Arabian income tax expense or liability in 2017 or 2016.

The difference between the effective tax rate in income tax expense and the Federal statutory rate of 21% for the year ended December 31, 2018, and 35% for the years ended December 31 2017 and 2016, is as follows:
 2018
 2017
 2016
 (thousands of dollars)
Income taxes at U.S. statutory rate$(822) $3,885
 $10,476
State taxes, net of federal benefit234
 235
 285
Net operating loss carryback
 (961) 
Research and development credits(263) 
 
Permanent and other items44
 (11) (257)
Deferred tax impact of US tax reform
 (10,307) 
Total tax expense (benefit)$(807)
$(7,159)
$10,504
Permanent differences are primarily due to the Federal manufacturer's deduction, research and development credit, and stock based compensation.
The Company has recognized the provisional tax impacts related to the acceleration of depreciation and included these amounts in its consolidated financial statements for the year ended December 31, 2018. After the analysis, the Company did not identify items for which the income tax effects of the TCJA have not been completed and a reasonable estimate could not be determined as of December 31, 2018.
The changes to existing U.S. tax laws as a result of the TCJA, which will have the most significant impact on the Company's federal income taxes are as follows:
Reduction of the U.S. Corporate Income Tax Rate - The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse. As a result of the reduction in the U.S. corporate income tax rate from 35% to 21% under the TCJA, the Company revalued its ending net deferred tax liabilities at December 31, 2017.
Acceleration of Depreciation - The Company recognized a provisional reduction to net deferred tax assets attributable to the accelerated depreciation for certain assets placed into service after September 27, 2017. The provisional estimate was finalized including consideration of TCJA on long term construction projects.

Tax effects of temporary differences that give rise to significant portions of federal and state deferred tax assets and deferred tax liabilities were as follows:
 December 31,
 2018
 2017
 (thousands of dollars)
Deferred tax liabilities:   
Plant, pipeline and equipment$(25,169) $(17,014)
Intangible assets(1,075) (778)
Other assets(40) (4)
Investment in AMAK(671) (1,023)
Total deferred tax liabilities$(26,955)
$(18,819)
    
Deferred tax assets:   
Accounts receivable238
 198
Inventory133
 156
Mineral interests226
 226
Foreign tax credit802
 
Net operating loss carryforward9,073
 
Post-retirement benefits79
 252
Stock-based compensation954
 971
Gross deferred tax assets11,505

1,803
Valuation allowance(226) (226)
Total net deferred tax assets$11,279

$1,577
Net deferred tax liabilities$(15,676)
$(17,242)
In connection with the proceeds received from AMAK in connection with its share repurchase program, the Company accrued a deferred tax asset (foreign tax credit) and the corresponding liability for the anticipated Saudi Arabian tax.
We provided a valuation allowance in 2018 and 2017 against certain deferred tax assets because of uncertainties regarding their realization. There was no change in the valuation allowance for 2018 or 2017.
We file an income tax return in the U.S. federal jurisdiction and a margin tax return in Texas. We received notification from the Internal Revenue Service ("IRS") in November 2016 on the selection of the December 31, 2014 tax return for audit. The IRS expanded its audit to include the Research and Development ("R&D") Credits for the year ended December 31, 2015. The IRS closed its audit without change in March 2018. We also received notification that Texas will audit our R&D credit calculations for 2014 and 2015. The state of Texas has suspended the audit of the Company's R&D credit. Texas is comprehensively reviewing their audit procedures for consistency. We do not expect any changes related to the Texas audits. Our federal and Texas tax returns remain open for examination for the years 2015 through 2018.
We recognized no adjustment for uncertain tax positions.  As of December 31, 2018, and 2017, no interest or penalties related to uncertain tax positions had been accrued.
NOTE 16 - SHARE-BASED COMPENSATION

On April 3, 2012, the Board of Directors of the Company adopted the Trecora Resources Stock and Incentive Plan (the "Plan") subject to the approval of Company's shareholders.  Shareholders approved the Plan at the 2012 Annual Meeting of Shareholders on June 6, 2012.  We filed Form S-8 to register the 1,500,000 shares allocated to the Plan on May 8, 2013.  An amendment extending the term of the Plan to June 1, 2018, was approved by the Company's shareholders at the 2017 Annual Meeting of Shareholders on June 15, 2017.

On April 7, 2008, the Board of Directors of the Company adopted the Stock Option Plan for Key Employees, as well as, the Non-Employee Director Stock Option Plan (hereinafter collectively referred to as the "Stock Option Plans"), subject to the approval of Company's shareholders.  Shareholders approved the Stock Option Plans at the 2008 Annual Meeting of Shareholders on July 10, 2008.  We filed Form S-8 to register the 1,000,000 shares allocated to the Stock Option Plans on October 23, 2008.

Share-based compensation of approximately $2.7 million, $2.6 million, and $2.3 million was recognized in 2017, 2016, and 2015, respectively.

Restricted Stock and Restricted Stock Unit Awards

A summary of all 2017 issuances is as follows:

On June 16, 2017, we awarded 127,281 shares of restricted stock units to officers at a grant date price of $11.40.  One-half of the restricted stock units vest ratably over 3 years.  The other half vests at the end of the three years based upon the performance metrics of return on invested capital and earnings per share growth.  The number of shares actually granted will be adjusted based upon relative performance to our peers.  Compensation expense recognized during 2017 was approximately $282,000.

On November 17, 2017, we awarded 15,369 shares of restricted stock units to a director at a grant date price of $12.20.  The restricted stock unit award vests over 2.5 years in increments of 40%, 40%, and 20% on November 16, 2018, 2019 and 2020, respectively. Director's compensation recognized during 2017 was approximately $6,000.

A summary of the status of the Company's restricted stock units activity in 2017 is as follows:



  
Shares of Restricted
Stock Units
  Weighted Average Grant Date Price per Share 
       
Outstanding at January 1, 2017  350,891  $11.44 
   Granted  142,650   11.49 
   Forfeited  (21,201)  10.52 
   Vested  (84,638)  12.00 
Outstanding at December 31, 2017  387,702  $11.39 
Expected to vest  380,992     

As of December 31, 2017, there was approximately $3.0 million of unrecognized compensation costs related to non-vested restricted share-based compensation that is expected to be recognized over a weighted average period of 2.0 years.

A summary of all 2016 issuances is as follows:

On November 17, 2016, we awarded 25,105 shares of restricted stock units to a director at a grant date price of $11.95.  The restricted stock unit award vests over 4 years in 25% increments.  Director's compensation recognized during 2017 and 2016 was approximately $75,000 and $50,000, respectively.

On November 17, 2016, we awarded 21,967 shares of restricted stock units to a director at a grant date price of $11.95.  The restricted stock unit award vests over 3.5 years in equal increments for three years and one-half increment for the final half year.  Director's compensation recognized during 2017 and 2016 was approximately $75,000 and $12,500, respectively.

On May 17, 2016, we awarded approximately 28,090 shares of restricted stock units to a director at a grant date price of $10.68.    The restricted stock unit award vests over 4 years in 25% increments.  Director's compensation recognized during 2017 and 2016 was approximately $75,000 and $50,000, respectively.

On March 1, 2016, we awarded 134,931 shares of restricted stock units to officers at a grant date price of $9.39.  One-half of the restricted stock unit award vests ratably over 3 years.  The other half vests at the end of the three years based upon the performance metrics of return on invested capital and earnings per share growth.  The number of shares actually granted will be adjusted based upon relative performance to our peers.  Compensation expense recognized during 2017 and 2016 was approximately $422,000 and $352,000, respectively.

On January 29, 2016, we awarded 35,333 shares of restricted stock units to a director at a grant date price of $10.52.  The restricted stock unit award vests over 5 years in 20% increments with the first tranche issued on January 29, 2016.  Director's compensation recognized in 2017 and 2016 was approximately $6,000 and $142,000, respectively.  The director retired during 2017; therefore the unvested shares were forfeited.

A summary of all 2015 issuances is as follows:

On May 20, 2015, we awarded 30,000 shares of restricted stock units to a director at a grant date price of $12.39.  The restricted stock unit award vests over 5 years in 20% increments with the first tranche issued on May 19, 2016.  Compensation expense recognized during 2017, 2016 and 2015 was approximately $74,000, $58,000 and $43,000, respectively.

On April 14, 2015, we awarded 1,000 shares of restricted stock to two of our 30 year employees at a grant date price of $12.03.  The restricted stock award was fully vested.  Compensation expense recognized during 2015 was approximately $12,000.

On February 12, 2015, we awarded 18,000 shares of fully vested restricted stock to various employees at a grant date price of $14.34.  Compensation expense recognized during 2015 was approximately $258,000.

On February 10, 2015, we awarded 118,040 shares of restricted stock units to our officers at a grant date price of $14.59.  The restricted stock award vests over 4 years in 25% increments with the first tranche issued on February 9, 2016.  Compensation expense recognized during 2017, 2016 and 2015 was approximately $431,000, $431,000 and $395,000, respectively.

Stock Options and Warrant Awards

Compensation expense recognized in connection with the following issuances was approximately $1,261,000, $1,456,000, and $1,645,000 for the years ended December 31, 2017, 2016, and 2015, respectively.

There were no stock options or warrant awards issued during 2017, 2016, or 2015.

A summary of all 2014 issuances is as follows:

On February 21, 2014, we awarded 10 year options to various employees for 500,000 shares.  These options have an exercise price equal to the closing price of the stock on February 21, 2014, which was $12.26 and vest in 25% increments over a 4 year period.  Compensation expense recognized during 2017, 2016, and 2015 was approximately $1,109,000, $1,108,000 and $1,108,000, respectively.  The fair value of the options granted was calculated using the Black-Scholes option valuation model with the following assumptions:

Expected volatility84%
Expected dividendsNone
Expected term (in years)6.25
Risk free interest rate1.95%

A summary of all 2013 issuances is as follows:

On May 29, 2013, we awarded 10 year options to Simon Upfill-Brown for 90,000 shares.  These options have an exercise price equal to the closing price of the stock on May 29, 2013, which was $7.71 and vest in 25% increments over a 4 year period.  Compensation expense recognized during 2017, 2016 and 2015 in connection with this award was approximately $52,000, $126,000 and $126,000, respectively.  The fair value of the options granted was calculated using the Black-Scholes option valuation model with the following assumptions:

Expected volatility85%
Expected dividendsNone
Expected term (in years)6.25
Risk free interest rate1.33%

A summary of all 2012 issuances is as follows:

On November 15, 2012, we awarded 10 year options to Director Gary Adams for 100,000 shares.  These options have an exercise price equal to the closing price of the stock on November 15, 2012, which was $7.14 and vest in 20% increments over a 5 year period.  Compensation expense recognized during 2017, 2016, and 2015 in connection with this award was approximately $100,000, $120,000 and $120,000, respectively.  The fair value of the options granted was calculated using the Black-Scholes option valuation model with the following assumptions:

Expected volatility87%
Expected dividendsNone
Expected term (in years)6.5
Risk free interest rate0.92%

A summary of all 2011 issuances is as follows:

On September 25, 2011, we awarded 10 year options to Director Joseph Palm for 80,000 shares with an exercise price equal to the closing price of the stock on September 23, 2011, (the latest closing date available) which was $3.52.  These options vest over 4.67 years with the first 20,000 vesting on May 19, 2013, and subsequent 20,000 share lots vesting each anniversary of that date subsequent until entirely vested.  Compensation expense recognized for 2017, 2016 and 2015 was approximately $0, $27,000, and $65,000, respectively.

On May 2, 2011, we awarded 10 year options to Director John Townsend for 100,000 shares.  These options have an exercise price equal to the closing price of the stock on May 2, 2011, which was $4.09 and vest in 20% increments over a 5 year period.  Compensation expense recognized during 2017, 2016, and 2015 in connection with this award was approximately $0, $27,000 and $80,000, respectively.

On January 12, 2011, we awarded 10 year options to key employees for 391,000 shares.  These options have an exercise price equal to the closing price of the stock on January 12, 2011, which was $4.86 and vest in 25% increments over a 4 year period.  Compensation expense recognized during 2017, 2016, and 2015 in connection with this award was approximately $0, $0 and $40,000, respectively.

The fair value of the 2011 options granted was calculated using the Black-Scholes option valuation model with the following range of assumptions:

Expected volatility96% to 413%
Expected dividendsNone
Expected term (in years)5-10
Risk free interest rate1.26% to 3.34%

A summary of all 2010 issuances is as follows:

In February 2010 we awarded 500,000 options to non-employee directors for their service during 2010 subject to attendance and service requirements.  These options vest over a 5 year period.  The exercise price of these options is $2.82 based upon the closing price on February 23, 2010.  Directors' fee expense recognized during 2017, 2016 and 2015 in connection with this award was approximately $0, $0 and $9,000, respectively.

The fair value of the 2010 options granted was calculated using the Black-Scholes option valuation model with the following range of assumptions:

Expected volatility338% to 467%
Expected dividendsNone
Expected term (in years)5-10
Risk free interest rate2.37% to 3.68%

A summary of unvested 2009 issuances is as follows:

On July 2009 we awarded two stock options to Mr. Hatem El Khalidi and his wife, Ingrid El Khalidi, tied to the performance of AMAK as follows: (1) an option to purchase 200,000 shares of the Company's common stock with an exercise price of $3.40 per share, equal to the closing sale price of such a share as reported on the public market on July 2, 2009, provided that said option may not be exercised until such time as the first shipment of ore from the Al Masane mining project is transported for commercial sale by AMAK, and further that said option shall terminate and be immediately forfeited if not exercised on or before June 30, 2012; and (2) an option to purchase 200,000 shares of the Company's common stock with an exercise price equal to the closing sale price of such a share as reported on the Nasdaq Stock Market on July 2, 2009, provided that said option may not be exercised until such time as the Company receives its first cash dividend distribution from AMAK, and further that said option shall terminate and be immediately forfeited if not exercised on or before June 30, 2019.  Compensation expense of approximately $0, $49,000 and $97,000 was recognized during the years ended December 31, 2017, 2016, and 2015, respectively,
related to the options awarded to Mr. El Khalidi. Approximately $413,000 was reversed during 2012 due to the performance condition associated with 200,000 shares in options not being met as required by the terms of the award by June 30, 2012.  Previously, on May 9, 2010, the Board of Directors determined that Mr. El Khalidi forfeited all options and other retirement benefits when he made various demands against the Company and other AMAK Saudi shareholders which would benefit him personally and were not in the best interests of the Company and its shareholders.  As discussed in Note 15 we are currently in litigation with Mr. El Khalidi and in connection therewith, we are currently reviewing our legal right to withdraw the options and benefits.  However, as of December 31, 2017, the options vesting upon a cash dividend distribution from AMAK continue to be shown as outstanding.

A summary of the status of the Company's stock option and warrant awards is presented below:

  
Stock Options and Warrants
  
Weighted
Average
Exercise
Price
Per Share
  
Weighted
Average
Remaining
Contractual
Life
  
Intrinsic
Value
(in thousands)
 
Outstanding at January 1, 2017  1,348,437  $7.79       
   Granted  -   -       
   Expired  -   -       
   Exercised  (24,850)  5.90       
   Forfeited  -   -       
Outstanding at December 31, 2017  1,323,587  $7.82   4.2  $7,518 
Expected to vest  125,000  $12.26   6.1  $155 
Exercisable at December 31, 2017  998,587  $8.15   4.6  $5,342 

The aggregate intrinsic value of options was calculated as the difference between the exercise price of the underlying awards and the quoted price of our common stock.  At December 31, 2017, options and warrants to purchase approximately 1.3 million shares of common stock were in-the-money.

Since no options were granted, the weighted average grant-date fair value per share of options granted during the years 2017, 2016, and 2015 was $0.  During 2017, 2016, and 2015 the aggregate intrinsic value of options exercised was approximately $164,000, $237,000 and $2,300,000 respectively, determined as of the date of option exercise.

The Company received approximately $25,000, $11,000 and $123,000 in cash from the exercise of options during 2017, 2016 and 2015, respectively.  Some of the options were exercised via a net transaction.  The tax benefit realized from the exercise was insignificant.

A summary of the status of the Company's non-vested options that are expected to vest is presented below:

  Shares  
Weighted
Average
Grant-Date
Fair Value
Per Share
 
Non-vested at January 1, 2017  492,500  $8.25 
   Granted  -   - 
   Forfeited  -   - 
   Vested  (167,500)  11.04 
Non-vested at December 31, 2017  325,000  $6.81 

Total fair value of options that vested during 2017 was approximately $1,849,000.

As of December 31, 2017, there was approximately $0.4 million of unrecognized compensation costs related to non-vested share-based compensation that is expected to be recognized over a weighted average period of 0.2 years.

The Company expects to issue shares upon exercise of options and warrants from its treasury stock and authorized but unissued common stock.

NOTE 17 – INCOME TAXES

The provision for income taxes consisted of the following:

  Year ended December 31, 
  2017  2016  2015 
  (thousands of dollars) 
Current federal provision (benefit) $(1,202) $1,691  $4,062 
Current state provision  282   18   285 
             
Deferred federal provision (benefit)  (6,320)  8,645   5,367 
Deferred state provision  81   150   50 
             
Income tax expense (benefit) $( 7,159) $10,504  $9,764 

We had no Saudi Arabian income tax expense or liability in 2017, 2016, or 2015.

The difference between the effective tax rate in income tax expense and the Federal statutory rate of 35% for the years ended December 31, 2017, 2016, and 2015, is as follows:

  2017  2016  2015 
  (thousands of dollars) 
Income taxes at U.S. statutory rate $3,885  $10,476  $9,927 
State taxes, net of federal benefit  235   285   230 
Net operating loss carryback  (961)  -   - 
Permanent and other items  (11)  (257)  (393)
Deferred tax impact of US tax reform  (10,307)  -   - 
    Total tax expense (benefit) $(7,159) $10,504  $9,764 

The Texas margin tax rate was reduced in a legislative reduction effective January 1, 2015.  Permanent differences are primarily due to the Federal manufacturer's deduction, research and development credit, and stock based compensation.

The Company has recognized the provisional tax impacts related to the acceleration of depreciation and included these amounts in its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from these provisional amounts, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company may take as a result of the TCJA. The Company did not identify items for which the income tax effects of the TCJA have not been completed and a reasonable estimate could not be determined as of December 31, 2017.

The changes to existing U.S. tax laws as a result of the TCJA, which will have the most significant impact on the Company's federal income taxes are as follows:

Reduction of the U.S. Corporate Income Tax Rate - The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured
using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse. As a result of the reduction in the U.S. corporate income tax rate from 35% to 21% under the TCJA, the Company revalued its ending net deferred tax liabilities at December 31, 2017.

Acceleration of Depreciation - The Company recognized a provisional reduction to net deferred tax assets attributable to the accelerated depreciation for certain assets placed into service after September 27, 2017. This provisional adjustment resulted in an increase in income tax receivable of approximately $961,000.

Tax effects of temporary differences that give rise to significant portions of federal and state deferred tax assets and deferred tax liabilities were as follows:


  December 31, 
  2017  2016 
  (thousands of dollars) 
Deferred tax liabilities:      
  Plant, pipeline and equipment $(17,014) $(22,598)
  Intangible assets  (778)  (786)
  Other assets  (4)  (10)
  Investment in AMAK  (1,023)  (3,109)
  Total deferred tax liabilities $(18,819) $(26,503)
         
Deferred tax assets:        
  Accounts receivable  198   322 
  Inventory  156   1,283 
  Mineral interests  226   376 
  Unrealized loss on swap agreements  -   20 
  Post-retirement benefits  252   423 
  Stock-based compensation  971   1,372 
    Gross deferred tax assets  1,803   3,796 
  Valuation allowance  (226)  (376)
  Total net deferred tax assets $1,577  $3,420 
    Net deferred tax liabilities $(17,242) $(23,083)


We provided a valuation allowance in 2017 and 2016 against certain deferred tax assets because of uncertainties regarding their realization.  The change in valuation allowance for 2017 of $150 was due to the re-measuring of the valuation allowance due to the TCJA.  There was no change in the valuation allowance for 2016.

We file an income tax return in the U.S. federal jurisdiction and a margin tax return in Texas.  We received notification from the Internal Revenue Service ("IRS") in November 2016 on the selection of the December 31, 2014 tax return for audit. The IRS expanded its audit to include the Research and Development ("R&D") Credits for the year ended December 31, 2015. We also received notification that Texas will audit our R&D credit calculations for 2014 and 2015.  We are in the process of submitting additional documentation to Texas.  We do not expect any changes related to the IRS and Texas audits.  Our federal and Texas tax returns remain open for examination for the years 2014 through 2017.

We recognized no adjustment for uncertain tax positions.  As of December 31, 2017, and 2016, no interest or penalties related to uncertain tax positions had been accrued.




NOTE 18 – SEGMENT INFORMATION

We operate in two business segments; specialty petrochemical and specialty waxes. We operate through business segments according to the nature and economic characteristics of our products as well as the manner in which the information is used internally by our key decision maker, who is our Chief Executive Officer. The accounting policies of the reporting segments are the same as those described in Note 2.

Our specialty petrochemical segment includes SHR and GSPL. Our specialty wax segment includes TC. We also separately identify our corporate overhead and investing which includes financing and administrative activities such as legal, accounting, consulting, investor relations, officer and director compensation, corporate insurance, and other administrative costs.

  Year Ended December 31, 2017 
  Petrochemical  Specialty Wax  Corporate  Consolidated 
  (in thousands) 
Net revenues $210,381  $34,762  $-  $245,143 
Operating profit (loss) before depreciation
 and amortization
  36,511   (35)  (7,413)  29,063 
Operating profit (loss)  30,201   (4,624)  (7,475)  18,102 
Profit (loss) before taxes  27,852   (5,238)  (11,764)  10,850 
Depreciation and amortization  6,310   4,589   62   10,961 
Capital expenditures  37,569   14,015   -   51,584 


     Year Ended December 31, 2017 
  Petrochemical  Specialty Wax  Corporate  Eliminations  Consolidated 
     (in thousands) 
Goodwill and intangible assets, net $-  $42,606  $-  $-  $42,606 
Total assets  265,213   117,579   97,880   (153,346)  327,326 


  Year Ended December 31, 2016 
  Petrochemical  Specialty Wax  Corporate  Consolidated 
  (in thousands) 
Net revenues $182,028  $30,371  $-  $212,399 
Operating profit before depreciation and amortization  31,885   3,043   (6,444)  28,484 
Operating profit (loss)  26,060   (865)  (6,488)  18,707 
Profit (loss) before taxes  24,084   10,675   (4,827)  29,932 
Depreciation and amortization  5,825   3,908   44   9,777 
Capital expenditures  22,948   17,547   -   40,495 


     Year Ended December 31, 2016 
  Petrochemical  Specialty Wax  Corporate  Eliminations  Consolidated 
     (in thousands) 
Goodwill and intangible assets, net $-  $44,467  $-  $-  $44,467 
Total assets  219,376   113,676   107,302   (149,870)  290,484 



 Year Ended December 31, 2018
 Specialty Petrochemical
 Specialty Wax
 Corporate
 Consolidated
 (in thousands)
Net revenues$249,679
 $38,253
 $
 $287,932
Operating profit (loss) before depreciation and amortization23,021
 1,949
 (8,275) 16,695
Operating profit (loss)14,089
 (3,427) (8,327) 2,335
Profit (loss) before taxes10,705
 (4,660) (9,184) (3,139)
Depreciation and amortization8,932
 5,376
 50
 14,358
Capital expenditures22,431
 2,854
 
 25,285
 Year Ended December 31, 2018
 Specialty Petrochemical
 Specialty Wax
 Corporate
 Eliminations
 Consolidated
   (in thousands)
Goodwill and intangible assets, net$
 $40,745
 $
 $
 $40,745
Total assets284,367
 115,366
 91,474
 (161,239) 329,968
 Year Ended December 31, 2017
 Specialty Petrochemical
 Specialty Wax
 Corporate
 Consolidated
 (in thousands)
Net revenues$210,381
 $34,762
 $
 $245,143
Operating profit (loss) before depreciation and amortization36,511
 (35) (7,413) 29,063
Operating profit (loss)30,201
 (4,624) (7,475) 18,102
Profit (loss) before taxes27,852
 (5,238) (11,764) 10,850
Depreciation and amortization6,310
 4,589
 62
 10,961
Capital expenditures38
 14,015
 
 14,053
 Year Ended December 31, 2017
 Specialty Petrochemical
 Specialty Wax
 Corporate
 Eliminations
 Consolidated
   (in thousands)
Goodwill and intangible assets, net$
 $42,606
 $
 $
 $42,606
Total assets265,213
 117,579
 97,880
 (153,346) 327,326


NOTE 1918 - NET INCOME (LOSS) PER COMMON SHARE

  Year ended December 31, 
  2017  2016  2015 
  (thousands of dollars) 
          
Net income $18,009  $19,428  $18,598 
             
Basic earnings per common share:            
    Weighted average shares outstanding  24,294   24,284   24,370 
             
    Per share amount (dollars) $0.74  $0.80  $0.76 
Diluted earnings per common share:            
    Weighted average shares outstanding  25,129   24,982   25,181 
             
    Per share amount (dollars) $0.72  $0.78  $0.74 

Year ended December 31,
2018
 2017
 2016
(thousands of dollars)
Net income (loss)$(2,332) $18,009
 $19,428
     
Basic earnings (loss) per common share:     
Weighted average shares outstanding24,438
 24,294
 24,284
     
Per share amount (dollars)$(0.10) $0.74
 $0.80
Diluted earnings (loss) per common share:     
Weighted average shares outstanding24,438
 25,129
 24,982
     
Per share amount (dollars)$(0.10) $0.72
 $0.78
Weighted average shares-denominator
basic computation
  24,294   24,284   24,370 24,438
 24,294
 24,284
Unvested restricted stock unit grant  367   310   141 
 367
 310
Effect of dilutive stock options  468   388   670 
 468
 388
Weighted average shares, as adjusted
denominator diluted computation
  25,129   24,982   25,181 24,438
 25,129
 24,982
At December 31, 2018, 2017, and 2016, 745,830, 1,323,587 and 2015, 1,323,587, 1,348,437 and 1,376,437 potential common stock shares, respectively, were issuable upon the exercise of options and warrants. At December 31, 2018, the Company had 397 unvested restricted stock units and 264 stock options that were not included in the computation of diluted earnings per share because the effect of conversion would be anti-dilutive due to the Company incurring net loss for operations for the year ended December 31, 2018.
In 2018, we completed an exchange of shares with certain shareholders whereby such shareholders traded 65,000 common shares of TREC in exchange for 24,489 shares of our AMAK stock.  The 65,000 shares were accounted for as treasury stock.

NOTE 2019 - QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

The quarterly results of operations shown below are derived from unaudited financial statements for the eight quarters ended December 31, 20172018 (in thousands, except per share data, rounding may apply):

  Year Ended December 31, 2017 
  
First
Quarter
  
Second
Quarter
  
Third
Quarter
  
Fourth
Quarter(4)
  Total 
                
Revenues $55,542  $62,115  $61,508  $65,978  $245,143 
Gross profit  10,618   11,107   9,870   9,966   41,561 
Net income  1,487   832   1,718   13,972   18,009 
Basic EPS(1) $0.06  $0.03  $0.07  $0.58  $0.74 
Diluted EPS(1) $0.06  $0.03  $0.07  $0.56  $0.72 


  Year Ended December 31, 2016 
  
First
Quarter
  
Second
Quarter(2)
  
Third
Quarter(3)
  
Fourth
Quarter
  Total 
                
Revenues $52,200  $48,854  $57,142  $54,203  $212,399 
Gross profit  11,771   11,574   8,905   7,652   39,902 
Net income  7,224   10,252   2,799   (847)  19,428 
Basic EPS(1) $0.30  $0.42  $0.12  (0.03) $0.80 
Diluted EPS(1) $0.29  $0.41  $0.11  (0.03) $0.78 

 Year Ended December 31, 2018
 
First
Quarter

 
Second
Quarter

 
Third
Quarter

 
Fourth
Quarter

 Total
          
Revenues$71,741
 $68,106
 $73,416
 $74,669
 $287,932
Gross profit10,140
 8,142
 6,842
 2,694
 27,818
Net income (loss)2,352
 2,215
 (1,609) (5,290) (2,332)
Basic EPS (1)$0.10
 $0.09
 $(0.07) $(0.22) $(0.10)
Diluted EPS (1)$0.09
 $0.09
 $(0.07) $(0.22) $(0.10)

 Year Ended December 31, 2017
 
First
Quarter

 
Second
Quarter

 
Third
Quarter

 
Fourth
Quarter (2)

 Total
          
Revenues$55,542
 $62,115
 $61,508
 $65,978
 $245,143
Gross profit10,618
 11,107
 9,870
 9,966
 41,561
Net income1,487
 832
 1,718
 13,972
 18,009
Basic EPS (1)$0.06
 $0.03
 $0.07
 $0.58
 $0.74
Diluted EPS (1)$0.06
 $0.03
 $0.07
 $0.56
 $0.72
(1)Basic and diluted earnings per share are computed independently for each of the quarters presented based on the weighted average number of common shares outstanding during that period. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.
(2)On May 2, 2016, we purchased B Plant.  As discussed in Note 3, we recorded a bargain purchase gain of approximately $11.5 million on the transaction.
(3)(2)As discussed in Note 11, in July 2016 AMAK issued four million shares.  As a result of the equity issuance, our share of the net assets of AMAK increased approximately $3.2 million which we recognized as a gain.
(4)As discussed in Note 1716 the TCJA changed the federal corporate income tax rates from 35% to 21% resulting in a benefit from deferred taxes of approximately $10.3 million.
NOTE 20 – RELATED PARTY TRANSACTIONS
Consulting fees of approximately $28,000, $27,000 and $33,000 were incurred during 2018, 2017, and 2016, respectively from IHS Global FZ LLC of which Company Director Gary K. Adams held the position of Chief Advisor – Chemicals until April 1, 2017. At December 31, 2018, and 2017, we had no outstanding liability payable to IHS Global FZ LLC.
Consulting fees of approximately $94,000, $74,000 and $73,000 were incurred during 2018, 2017, and 2016, respectively, from Chairman of the Board, Nicholas Carter. Due to his history and experience with the Company and to provide continuity after his retirement, a three year consulting agreement was entered into with Mr. Carter in July 2015. At December 31, 2018, and 2017, we had no outstanding liability payable to Mr. Carter.

NOTE 21 – RESTRUCTURING AND SEVERENCE EXPENSES
During 2018, the Company incurred restructuring and severance expenses of approximately $2.3 million related to changes in executive management and the completion of projects in our specialty petrochemical segment. These expenses relate to severance, stock compensation for continued vesting of time-vested shares issued under the Company's long-term incentive plans, and certain employee benefits including medical insurance and vacation. As of December 31, 2018, approximately $1.2 million remains unpaid and is included in accrued liabilities.
NOTE 21 – RELATED PARTY TRANSACTIONS22- POST-RETIREMENT OBLIGATIONS

Consulting fees of approximately $27,000, $33,000 and $25,000 were incurred during 2017, 2016, and 2015, respectively from IHS Global FZ LLC of which Company Director Gary K. Adams holds the position of Chief Advisor – Chemicals until April 1, 2017.  At December 31, 2017, and 2016, we had no outstanding liability payable to IHS Global FZ LLC.

Consulting fees of approximately $74,000, $73,000 and $37,000 were incurred during 2017, 2016, and 2015, respectively, from Chairman of the Board, Nicholas Carter.  Due to his history and experience with the Company and to provide continuity after hisIn January 2008, an amended retirement a three year consulting agreement was entered into with Mr. Carter in July 2015. AtHatem El Khalidi; however, on May 9, 2010, the Board of Directors terminated the agreement due to actions of Mr. El Khalidi. See Note 14. All amounts which had not met termination dates remained recorded until a resolution was achieved. The matter was resolved on May 25, 2018 and as of June 30, 2018, post-retirement obligations of approximately $1.0 million for Mr. El Khalidi have been reversed. As of December 31, 2017, approximately $1.0 million remained outstanding and 2016, we had no outstanding liability payable to Mr. Carter.was included in post-retirement benefits.

NOTE 22 – DERIVATIVE INSTRUMENTS
Commodity Financial InstrumentsIn July 2015 and June 2018, we entered into retirement agreements with our former CEO, Nicholas Carter, and our former VP of Accounting & Compliance, Connie Cook. Mr. Carter's agreement provides continued welfare benefits for him and his wife for life at the same cost sharing basis as regular employees. Ms. Cook's agreement provides continued welfare benefits for her and her husband until eligible for Medicare. Approximately $377,000 and $249,000 was outstanding at December 31, 2018, and 2017, respectively, and included in post-retirement benefits. For the period ended December 31, 2018, and 2017, approximately $18,000 and $16,000, respectively had been paid.

Hydrocarbon based manufacturers, such as SHR, are significantly impacted by changes in feedstock and natural gas prices.  Not considering derivative transactions, feedstock and natural gas used for theTRECORA RESOURCES AND SUBSIDIARIES
VALUATION AND QUALIFYING ACCOUNTS
Three years ended December 31, 2017, 2016, and 2015, represented approximately 68.3%, 62.2% and 69.3% of SHR's operating expenses, respectively.2018
Description 
Beginning
balance
 
Charged
(credited)
to earnings
 Deductions 
Ending
balance
ALLOWANCE FOR DEFERRED
TAX ASSET
        
         
December 31, 2016 376,037
 
 
 376,037
December 31, 2017 376,037
 (150,415) 
 225,622
December 31, 2018 225,622
 
 
 225,622
Description 
Beginning
balance
 
Charged
to earnings
 Deductions 
Ending
balance
ALLOWANCE FOR DOUBTFUL
ACCOUNTS
        
         
December 31, 2016 210,000
 183,339
 (93,339) 300,000
December 31, 2017 300,000
 
 
 300,000
December 31, 2018 300,000
 152,000
 
 452,000

On February 26, 2009,
AL MASANE AL KOBRA MINING COMPANY
Financial Statements
with
Report of Independent Registered Public Accounting Firm
December 31, 2018, 2017, and 2016


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors rescinded its original commodity trading resolution from 1992and
Shareholders of Al Masane Al Kobra Mining Company
Najran, Kingdom of Saudi Arabia

Opinion on the Financial Statements
We have audited the accompanying balance sheets of Al Masane Al Kobra Mining Company (the Company) as of December 31, 2018 and replaced it with a new resolution.  The 2009 resolution allows2017, and the related statements of operations, changes in shareholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2018, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2018, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion
These financial statements are the responsibility of the Company’s management. Our responsibility is to establishexpress an opinion on the Company’s financial statements based on our audits. We are a commodity futures accountpublic 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 audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of maximizing our resources and reducing risk as pertaining to our purchases of natural gas and feedstock for operational purposes by employing a four step process. This process, in summary, includes, (1) education of employees who are responsible for carrying outexpressing an opinion on the policy, (2) adoption of a derivatives policy by the Board explaining the objectives for use of derivatives including accepted risk limits, (3) implementation of a comprehensive derivative strategy designed to clarify the specific circumstances under which we will use derivatives, and (4) establishment and maintenance of a set of internal controls to ensure that alleffectiveness of the derivatives transactions taking place are authorizedCompany’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the 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 accord with the policiesfinancial statements. Our audits also included evaluating the accounting principles used and strategies that have been enacted.  On August 31, 2009, the Company adopted a formal risksignificant estimates made by management, policy which incorporates the above process, as well as established a "hedge committee" for derivative oversight.

We endeavor to acquire feedstock and natural gas atevaluating the lowest possible cost.  The primary feedstock (natural gasoline) is traded over the counter and not on organized futures exchanges.  Financially settled instruments (fixed price swaps) are the principal vehicle used to give some predictability to feed prices. We do not purchase or hold any derivative financial instruments for trading purposes.

The following tables detail (in thousands) the impact the feedstock and natural gas instruments had onoverall presentation of the financial statements:


F-36

statements. We believe that our audits provide a reasonable basis for our opinion.



  December 31, 
  2017  2016  2015 
          
Realized gain (loss) $-  $-  $(180)
Unrealized gain (loss)  -   -   180 
Net loss $-  $-  $- 

Realized and unrealized gains / (losses) are recorded in Cost of Petrochemical Product Sales and Processing for the years ended December 31, 2017, 2016, and 2015.s/ Mamdouh Al Majed & Faisal Al-Enzi
Certified Public Accountants

Interest Rate SwapsWe have served as the Company’s auditor since 2013.

On Riyadh, Kingdom of Saudi Arabia
March 21, 2008, SHR entered into a pay-fixed, receive-variable interest rate swap agreement with Bank of America related to the $10.0 million (later increased to $14 million) term loan secured by plant, pipeline and equipment. The effective date of the interest rate swap agreement was August 15, 2008, and terminated on December 15, 2017.  We received credit for payments of variable rate interest made on the term loan at the loan's variable rates, which are based upon the London InterBank Offered Rate (LIBOR), and paid Bank of America an interest rate of 5.83% less the credit on the interest rate swap.  We originally designated the transaction as a cash flow hedge according to ASC Topic 815, Derivatives and Hedging.  Beginning on August 15, 2008, the derivative instrument was reported at fair value with any changes in fair value reported within other comprehensive income (loss) in the Company's Statement of Stockholders' Equity.  We entered into the interest rate swap to minimize the effect of changes in the LIBOR rate.6, 2019

The following tables detail (in thousands) the impact the agreement had on the financial statements:

  December 31, 
  2017  2016 
       
Fair value of derivative liability $-  $58 
AL MASANE AL KOBRA MINING COMPANY
Balance Sheets
 December 31,
 2018
 2017
 (Expressed in Saudi Riyals)
ASSETS   
Current assets:   
Cash and cash equivalents31,510,496
 32,325,537
Accounts receivable16,235,035
 8,213,816
Inventories45,871,120
 27,226,932
Advances to shareholders (Note 1)52,562,028
 
Advances to contractors and other19,168,765
 19,731,780
    
Total current assets165,347,444

87,498,065
    
Non-current assets:   
Property and equipment, net634,856,075
 693,801,671
Development costs, net155,281,525
 191,528,180
Deferred mine closure costs5,955,999
 6,700,499
    
Total non-current assets796,093,599

892,030,350
    
 961,441,043

979,528,415
    
LIABILITIES AND SHAREHOLDERS' EQUITY   
Current liabilities:   
Accounts payable and accrued liabilities28,756,945
 22,672,618
Zakat and income tax liability5,400,000
 3,516,673
Due to shareholders
 453,816
Capital lease obligation, current portion193,206
 
Long-term debt, current portion30,000,000
 65,000,000
    
Total current liabilities64,350,151

91,643,107
    
Non-current liabilities   
Provision for mine closure costs16,063,136
 15,519,938
Capital lease obligation, net of current portion359,811
 
Long-term debt, net of current portion and   
deferred finance costs266,258,712
 229,082,810
End-of-service indemnities3,649,889
 2,518,529
Deferred income taxes3,792,785
 11,017,714
    
Total non-current liabilities290,124,333

258,138,991

Due to the new debt agreements associated with the Acquisition, we believed that the hedge was no longer entirely effective.  Due to the time required to make the determination and the immateriality of the hedge, we began treating the interest rate swap as ineffective as of October 1, 2014.
AL MASANE AL KOBRA MINING COMPANY
Balance Sheets - (Continued)
 December 31,
 2018
 2017
 (Expressed in Saudi Riyals)
Commitments and contingencies (Note 14)   
    
Shareholders' equity   
Share capital820,000
 780,000
Share premium
 37,546
Accumulated deficit(213,033) (187,800)
    
Total shareholders' equity606,967

629,746
    
 961,441
 979,528


AL MASANE AL KOBRA MINING COMPANY
Statements of Operations
 December 31,
 2018 2017 2016
 (Expressed in Saudi Riyals)
Revenues263,377,273
 136,629,881
 37,202,504
      
Costs of revenues255,313,296
 162,388,373
 101,743,839
      
Operating income (loss)8,063,977

(25,758,492)
(64,541,335)
      
General and     
administrative expenses29,475,998
 28,299,733
 26,957,555
      
Loss from operations(21,412,021)
(54,058,225)
(91,498,890)
      
Other income (expense)     
Gain on forgiveness of liabilities and     
spare parts (Note 8)
 
 65,345,250
Finance charges(5,969,821) (6,103,680) (6,043,410)
Other income323,575
 893,524
 260,953
      
 (5,646,246)
(5,210,156)
59,562,793
      
Loss before Zakat and income tax(27,058,267) (59,268,381) (31,936,097)
      
Zakat and income tax benefit (expense)1,824,929
 (3,627,193) (3,596,244)
      
Net loss(25,233,338)
(62,895,574)
(35,532,341)


AL MASANE AL KOBRA MINING COMPANY
Statements of Changes in Shareholders' Equity
 (Expressed in Saudi Riyals)
     Retained  
     Earnings  
 Share Share (Accumulated  
 Capital Premium Deficit) Total
        
Balance at December 31, 2015740,000,000
 
 (89,372,188) 650,627,812
        
Issuance of share capital and premium40,000,000
 37,546,420
 
 77,546,420
        
Net loss
 
 (35,532,341) (35,532,341)
        
Balance at December 31, 2016780,000,000

37,546,420

(124,904,529)
692,641,891
        
Net loss
 
 (62,895,574) (62,895,574)
        
Balance at December 31, 2017780,000,000

37,546,420

(187,800,103)
629,746,317
        
Issuance of share premium
 2,453,580
 
 2,453,580
        
Conversion of share premium to share capital40,000,000
 (40,000,000) 
 
        
Net loss
 
 (25,233,338) (25,233,338)
        
Balance at December 31, 2018820,000,000
 
 (213,033,441) 606,966,559


AL MASANE AL KOBRA MINING COMPANY
Statements of Cash Flows
 December 31,
 2018
 2017
 2016
 (Expressed in Saudi Riyals)
Cash flows from operating activities:     
Net loss(25,233,338) (62,895,574) (35,532,341)
Adjustments to reconcile net loss to net cash     
provided by (used in) operating activities:     
Depreciation and amortization125,507,864
 83,547,586
 43,768,238
Accretion of deferred mine closure costs543,198
 524,829
 507,081
Amortization of deferred finance costs2,175,902
 1,610,733
 2,147,644
Gain on forgiveness of liabilities
 
 (65,345,250)
Deferred income taxes(7,224,929) 417,966
 1,718,258
Changes in operating assets and liabilities:     
Accounts receivable(8,021,219) (8,213,816) 28,351,618
Inventories(18,644,188) (11,351,752) 15,754,952
Advances to contractors and other563,016
 (3,944,995) (6,186,357)
Accounts payable and accrued liabilities6,084,327
 9,638,009
 3,511,632
Zakat and income tax liability1,883,327
 1,583,048
 679,206
Pre-export advance payment
 
 (9,150,880)
End-of-service indemnities1,131,360
 1,037,893
 (264,797)
      
Net cash provided by (used in) operating activities78,765,320

11,953,927

(20,040,996)
      
Cash flows from investing activities:     
Additions to property and equipment(28,945,309) (31,550,443) (29,246,001)


AL MASANE AL KOBRA MINING COMPANY
Statements of Cash Flows - (Continued)
 December 31,
 2018 2017 2016
 (Expressed in Saudi Riyals)
Cash flows from financing activities:     
Issuance of share capital and premium2,453,580
 
 75,092,840
Payments on capital lease obligations(72,788) 
 
Payments on long-term debt
 (5,000,000) 
Net advances from (to) shareholders(53,015,844) 403,147
 299,231
      
Net cash provided by (used in) financing activities(50,635,052)
(4,596,853)
75,392,071
      
Increase (decrease) in cash and cash equivalents(815,041) (24,193,369) 26,105,074
      
Cash and cash equivalents, beginning of year32,325,537
 56,518,906
 30,413,832
      
Cash and cash equivalents, end of year31,510,496

32,325,537

56,518,906
      
Supplemental cash flow information     
      
Cash paid for interest3,927,778
 3,686,000
 3,895,766
      
Cash paid for Zakat and income tax3,212,813
 1,626,179
 1,198,780
      
Supplemental disclosure of non-cash items     
      
Assets acquired through capital lease obligations625,805
 
 


NOTE 23- POST-RETIREMENT OBLIGATIONS

In January 2008 an amended retirement agreement, replacing the February 2007 agreement, was entered into with Hatem El Khalidi. The amended agreement provided $6,000 per month in benefits to Mr. El Khalidi upon his retirement for the remainder of his life. Additionally, upon his death $4,000 per month would be paid to his surviving spouse for the remainder of her life. A health insurance benefit was also to be provided.  An additional $382,000 was accrued in January 2008 for the increase in benefits. A liability of approximately $922,000 and $918,000 based upon an annuity single premium value contract was outstanding at December 31, 2017, and 2016, respectively, and was included in post-retirement benefits.  Mr. El Khalidi retired effective June 30, 2009.  As of December 31, 2017, no payments have been made pursuant to this agreement.

In June 2009 the Company's Board of Directors awarded Mr. El Khalidi a retirement bonus in the amount of $31,500 for 42 years of service.  While there is no written policy regarding retirement bonus compensation, the Company has historically awarded all employees (regardless of job position) a retirement bonus equal to $750 for each year of service.  Since Mr. El Khalidi was employed by the Company for 42 years, the Board of Directors voted to award him a $31,500 retirement bonus, consistent with that provided to all other retired employees. This amount was outstanding at December 31, 2017, and 2016, and was included in post-retirement benefits.

On May 9, 2010, the Board of Directors terminated the retirement agreement, options, retirement bonus, and any outstanding directors' fees due to Mr. El Khalidi; however, due to the litigation discussed in Note 15, all amounts remain outstanding until a resolution is achieved.

In July 2015 we entered into a retirement agreement with former CEO, Nicholas Carter which provides continued welfare benefits for Mr. Carter and his wife for life at the same cost sharing basis as regular employees.  Approximately $249,000 and $265,000 was outstanding at December 31, 2017, and 2016, respectively, and included in post-retirement benefits.  For the period ended December 31, 2017, and 2016, approximately $16,000 and $12,000, respectively had been paid.




TRECORA RESOURCES AND SUBSIDIARIES

VALUATION AND QUALIFYING ACCOUNTS
Three years ended December 31, 2017

Description 
Beginning
balance
  
Charged
(credited)
to earnings
  Deductions  
Ending
balance
 
ALLOWANCE FOR DEFERRED
  TAX ASSET
            
             
December 31, 2015  376,037   -   -   376,037 
December 31, 2016  376,037   -   -   376,037 
December 31, 2017  376,037   (150,415)  -   225,622 


Description 
Beginning
balance
  
Charged
to earnings
  Deductions  
Ending
balance
 
ALLOWANCE FOR DOUBTFUL
  ACCOUNTS
            
             
December 31, 2015  210,000   -   -   210,000 
December 31, 2016  210,000   183,339   (93,339)  300,000 
December 31, 2017  300,000   -   -   300,000 













AL MASANE AL KOBRA MINING COMPANY

Financial Statements
with
Report of Independent Registered Public Accounting Firm

December 31, 2017, 2016, and 2015
Page
1 - 2
Financial Statements:
3 - 4
5
6
7 - 8
9 - 28





REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and
Shareholders of Al Masane Al Kobra Mining Company
Najran, Kingdom of Saudi Arabia

Opinion on the Financial Statements
We have audited the accompanying balance sheets of Al Masane Al Kobra Mining Company (the Company) as of December 31, 2017 and 2016, and the related statements of operations, comprehensive income, changes in shareholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2017, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements 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 audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the 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 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 financial statements. We believe that our audits provide a reasonable basis for our opinion.

Emphasis of Matter
As discussed in Note 10 to the financial statements, the Company has not made their debt payments as they have come due and therefore is in default. The Company received correspondence on March 4, 2018 which waived the event of default and deferred the missed payments to 2018. The Company is currently working with their lender to restructure the terms and repayment schedule of the amount outstanding.  Our opinion is not modified with respect to this matter.




Mamdouh Al Majed & Faisal Al-Enzi
Certified Public Accountants

We have served as the Company's auditor since 2013.

Riyadh, Kingdom of Saudi Arabia
March 12, 2018

AL MASANE AL KOBRA MINING COMPANY 
Balance Sheets
 
       
  December 31, 
  2017  2016 
  (Expressed in Saudi Riyals) 
ASSETS      
Current assets:      
Cash and cash equivalents  32,325,537   56,518,906 
Accounts receivable  8,213,816   - 
Inventories  27,226,932   15,875,180 
Due from shareholders  50,000   50,000 
Advances to contractors and other  19,681,780   15,736,784 
         
Total current assets  87,498,065   88,180,870 
         
Non-current assets:        
Property and equipment, net  693,801,671   726,529,739 
Development costs, net  191,528,180   209,680,505 
Deferred mine closure costs  6,700,499   7,817,250 
         
Total non-current assets  892,030,350   944,027,494 
         
   979,528,415   1,032,208,364 
         
LIABILITIES AND SHAREHOLDERS' EQUITY     
Current liabilities:        
Accounts payable and accrued liabilities  22,672,618   13,034,609 
Zakat and income tax liability  3,516,673   1,933,625 
Due to shareholders  453,816   50,669 
Long-term debt, current portion  65,000,000   15,000,000 
         
Total current liabilities  91,643,107   30,018,903 
         
Non-current liabilities        
Provision for mine closure costs  15,519,938   14,995,109 
Long-term debt, net of current portion and        
     deferred finance costs  229,082,810   282,472,077 
End-of-service indemnities  2,518,529   1,480,636 
Deferred income taxes  11,017,714   10,599,748 
         
Total non-current liabilities  258,138,991   309,547,570 

AL MASANE AL KOBRA MINING COMPANY 
Balance Sheets - (Continued) 
       
  December 31, 
  2017  2016 
  (Expressed in Saudi Riyals) 
Commitments and contigencies      
       
Shareholders' equity      
Share capital  780,000,000   780,000,000 
Share premium  37,546,420   37,546,420 
Accumulated deficit  (187,800,103)  (124,904,529)
         
Total shareholders' equity  629,746,317   692,641,891 
         
   979,528,415   1,032,208,364 


AL MASANE AL KOBRA MINING COMPANY 
Statements of Operations
 
          
          
  December 31, 
  2017  2016  2015 
  (Expressed in Saudi Riyals) 
          
Revenues  136,629,881   37,202,504   190,290,543 
             
Costs of revenues  162,388,373   101,743,839   229,428,965 
             
Gross loss margin  (25,758,492)  (64,541,335)  (39,138,422)
             
General and            
administrative expenses  28,299,733   26,957,555   24,633,457 
             
Loss from operations  (54,058,225)  (91,498,890)  (63,771,879)
             
Other income (expense)            
Gain on forgiveness of liabilities and            
     spare parts (Note 8)  -   65,345,250   - 
Finance charges  (6,103,680)  (6,043,410)  (6,360,680)
Other income  893,524   260,953   - 
             
   (5,210,156)  59,562,793   (6,360,680)
             
Loss before zakat and income taxes  (59,268,381)  (31,936,097)  (70,132,559)
             
Provision for zakat and income taxes  (3,627,193)  (3,596,244)  (1,990,635)
             
Net loss  (62,895,574)  (35,532,341)  (72,123,194)


AL MASANE AL KOBRA MINING COMPANY 
Statements of Changes in Shareholders' Equity
 
             
             
  (Expressed in Saudi Riyals) 
        Retained    
        Earnings    
  Share  Share  (Accumulated    
  Capital  Premium  Deficit)  Total 
             
Balance at December 31, 2014  550,000,000   190,000,000   (17,248,994)  722,751,006 
                 
Conversion in share premium to                
    share capital  190,000,000   (190,000,000)  -   - 
                 
Net loss  -   -   (72,123,194)  (72,123,194)
                 
Balance at December 31, 2015  740,000,000   -   (89,372,188)  650,627,812 
                 
Issuance of share capital and premium  40,000,000   37,546,420   -   77,546,420 
                 
Net loss  -   -   (35,532,341)  (35,532,341)
                 
Balance at December 31, 2016  780,000,000   37,546,420   (124,904,529)  692,641,891 
                 
Net loss  -   -   (62,895,574)  (62,895,574)
                 
Balance at December 31, 2017  780,000,000   37,546,420   (187,800,103)  629,746,317 







AL MASANE AL KOBRA MINING COMPANY 
          
Statements of Cash Flows
 
          
          
  December 31, 
  2017  2016  2015 
  (Expressed in Saudi Riyals) 
Cash flows from operating activities:         
Net loss  (62,895,574)  (35,532,341)  (72,123,194)
Adjustments to reconcile net loss to net cash            
provided by operating activities:            
Depreciation and amortization  83,547,586   43,768,238   87,183,080 
Accretion of deferred mine closure costs  524,829   507,081   489,934 
Amortization of deferred finance costs  1,610,733   2,147,644   2,147,644 
Gain on forgiveness of liabilities  -   (65,345,250)  - 
Deferred income taxes  417,966   1,718,258   736,216 
Changes in operating assets and liabilities:            
Accounts receivable  (8,213,816)  28,351,618   (19,254,887)
Inventories  (11,351,752)  15,754,952   (3,308,910)
Advances to contractors and other  (3,944,995)  (6,186,357)  8,175,068 
Accounts payable and accrued liabilities  9,638,009   3,511,632   27,106,206 
Zakat and income tax liability  1,583,048   679,206   1,254,419 
Pre-export advance payment  -   (9,150,880)  5,327,622 
End-of-service indemnities  1,037,893   (264,797)  202,418 
             
Net cash provided by (used in) operating activities  11,953,927   (20,040,996)  37,935,616 
             
Cash flows from investing activities:            
Additions to property and equipment  (31,550,443)  (29,246,001)  (55,782,406)

          
AL MASANE AL KOBRA MINING COMPANY 
          
Statements of Cash Flows - (Continued) 
          
          
  December 31, 
  2017  2016  2015 
  (Expressed in Saudi Riyals) 
Cash flows from financing activities:         
Issuance of share capital and premium  -   75,092,840   - 
Payments on capital lease obligations  -   -   (4,792,531)
Payments on long-term debt  (5,000,000)  -   - 
Proceeds from long-term debt  -   -   50,192,000 
Net advances from (repayments to) shareholders  403,147   299,231   (119,016)
             
Net cash provided by (used in) financing activities  (4,596,853)  75,392,071   45,280,453 
             
Net change in cash and cash equivalents  (24,193,369)  26,105,074   27,433,663 
             
Cash and cash equivalents, beginning of year  56,518,906   30,413,832   2,980,169 
             
Cash and cash equivalents, end of year  32,325,537   56,518,906   30,413,832 
             
Supplemental cash flow information            
             
Cash paid for interest  3,686,000   3,895,766   4,213,036 
             
Cash paid for Zakat and income tax  1,626,179   1,198,780   - 

Note 1 – Organization and Business

Organization
Al Masane Al Kobra Mining Company is a Saudi Arabian closed joint stock company approved by the Minister of Commerce and Industry Decree Number 247/Q dated 9/10/1428 (October 21, 2007) and registered in Jeddah under Commercial Registration No. 4030175345 on 7/1/1429 (January 16, 2008). During 2015, the head office was moved from Jeddah to Najran. Accordingly, Najran Commercial Registration No. 5950017523 dated 03/11/1431H (October 11, 2010) was modified to be the main Commercial Registration. Unless the context requires otherwise, references to "we"“we”, "us"“us”, "our"“our”, "AMAK"“AMAK”, and the "Company"“Company” are intended to mean Al Masane Al Kobra Mining Company. All amounts are expressed in Saudi Riyals (SR) unless otherwise noted.

During 2009 the authorized capital of the Company was 450,000,000 consisting of 45 million shares of 10 each of which 50% were issued for cash. The remaining 50% were issued for the contribution of mining rights and assets from Trecora Resources (Trecora) subject to Trecora'sTrecora’s liability for a loan in the amount of 41,250,000 due to the Ministry of Finance and National Economy. The mining rights in Al Masane mine were originally granted by Royal Decree Number M/17 effective 1/12/1413 (May 22, 1993) for a period of thirty years, with a right of renewal for a further period of twenty years to Trecora. The mining rights granted Trecora the right of exploitation in Al Masane mine located in Najran, Saudi Arabia, with an area of 44 square kilometers for a surface rental of 10,000 per square kilometer per year, i.e. 440,000 per year. As per the Ministry of Petroleum and Mineral Resources resolution dated 13/9/1429 (13/9/2008) and the ministry subsequent letter dated 2/1/1430 (30/12/2008), the aforementioned rights were transferred to us.

During 2011 the Company increased its authorized share capital by SR50,000,000 to SR500,000,000 and issued 5,000,000 shares of 10 each at a price of SR28 each resulting in a share premium of SR90,000,000. The entire 5,000,000 shares were issued for cash to Arab Mining Company (ARMICO) headquartered in Amman, Jordan.

During 2013 the Company increased its authorized share capital by SR50,000,000 to SR550,000,000 and issued 5,000,000 shares of 10 each at a price of SR30 each resulting in a share premium of SR100,000,000. The shares were issued for cash to existing shareholders.

During 2015 the Company increased its authorized share capital by SR190,000,000 to SR 740,000,000 and issued 19,000,000 shares of 10 each by transferring from share premium accounts.

Note 1 – Organization and Business – (Continued)

Organization - continued
During 2016 the Company increased its authorized share capital by SR40,000,000 to SR 780,000,000 and issued 4,000,000 shares of 10 each at a price of SR20 each resulting in a share premium of SR35,092,840.

During 20172018 the Company increased share premium by SR2,453,580 for shareshares that were previously issued.

During 2018 the Company increased its authorized share capital by SR40,000,000 to SR820,000,000 and issued 4,000,000 shares of 10 each by transferring from share premium accounts.

During the Company’s Extraordinary General Assembly Meeting in October of 2018, the shareholders approved to repurchase 2,500,000 shares from the shareholders at a price of SR30 each and to register these shares as treasury shares. In December 2018, the Board unanimously approved this proposal and authorized the CEO to proceed with the repurchase. The Company began advancing shareholders their portion of these proceeds in anticipation of completing and finalizing the treasury stock repurchase in 2019. As of December 31, 2018, the Company had advanced SR52,562,028 to shareholders.

Except for Trecora and ARMICO, all other shareholders are Saudi nationals or companies wholly owned by Saudi nationals. Our share capitalownership is owned by the shareholders as follows:

  
Shares
  
Ownership
Percentage
  
Paid-In
Capital
 
Saudi shareholders  36,459,642   46.74   364,596,420 
Trecora (US Company)  26,085,000   33.44   260,850,000 
ARMICO (Pan Arab Organization) and Treasury  
15,455,358
   
19.82
   
154,553,580
 
             
   78,000,000   100.00   780,000,000 
 Shares 
Ownership
Percentage
Saudi shareholders38,349,184
 46.8
Trecora (US Company)27,402,876
 33.4
ARMICO (Pan Arab Organization)16,247,940
 19.8
    
 82,000,000
 100.00

Business and operations
Our principal activity is to produce zinc and copper concentrates and silver and gold doré as per the license Number 993/2 dated 16/7/1428 (July 31, 2007) issued by Saudi Arabian General Investment Authority (SAGIA). We commenced our commercial production on July 1, 2012. During 2015, we received a new mining lease for an area near our current mining area for the Guyan ancient mine.

On 16/11/1428 (November 26, 2007), while the Company was in the registration process, the Company signed a contract with China National Geological and Mining Corporation (CGM) for underground mine rehabilitation, pre-production activity, and on-going mine development/production and with Nesma & Partners Contracting Company Limited (Nesma) for engineering, procurement, construction, commissioning and hand over of the concentrator surface works and the related infrastructure facilities. The handover of these facilities was finalized on November 28, 2011. In late 2014, we renegotiated a more favorable plant operations and maintenance contract with CGM. CGM ran our mining operations until November 2015, at which time the Board of Directors cancelled the CGM and Nesma contract and temporarily suspended operations of the Company. See Note 8.

Note 1 – Organization and Business – (Continued)

Business and operations - continued
This planned, temporary shutdown of the facility was due to the continued depressed commodity price environment as well as needs for renovation and maintenance. In February 2016, we entered into a new operating and rehabilitation contract with a different vendor under more favorable terms.  We resumed operations in the first quarter of 2017 and generated enough ore for two shipments in 2017 and have four scheduled shipments in 2018.

Our focus during the renovation focused on improving recoveries overall and upgrading the precious metals circuit through the installation of SART (sulfidization, acidification, recycling, and thickening) modifications which are expected to lower chemical use, thereby reducing operating costs. In addition, processing of certain gold-bearing waste dumps from historical mining at the newly acquired Guyan mining license area has begunFebruary 2016, we entered into a new operating and fold extraction is in process.  An extensive exploration program for the rest of Guyan mining lease has been completed.rehabilitation contract with a different vendor under more favorable terms.


We resumed operations in the first quarter of 2017 and generated enough ore for two shipments in 2017. In 2018, we resumed our schedule of 4 shipments a year.
Note 2 - Summary of Significant Accounting Policies

The accompanying financial statements have been prepared using U.S. generally accepted accounting principles. The following is a summary of our significant accounting policies:

Cash and cash equivalents
We consider all highly-liquid investments purchased with an original maturity of three months or less to be cash equivalents.

Accounts receivable
We evaluate the collectability of our accounts receivable and the adequacy of the allowance for doubtful accounts based upon historical experience and any specific customer financial difficulties of which the Company becomes aware. During the years ended December 31, 2018, 2017, 2016, and 2015,2016, we sold our concentrates and doré pursuant to a sales contract with one customer. No amounts have been written off for the years ended December 31, 2018, 2017, 2016, and 2015.2016. In addition, we determined that an allowance for doubtful accounts was not necessary at December 31, 20172018 and 2016.  Due to the shutdown of operations, we had no outstanding accounts receivable at December 31, 2016.2017.


11Inventories


Note 2 - Summary of Significant Accounting Policies - (Continued)

Inventories
The components of inventories include mill stockpiles, precious metal doré, chemicals, and mining supplies. Inventories are stated at the lower of weighted-average cost or market. Costs of mill stockpiles inventory include labor and benefits, supplies, energy, depreciation, depletion, amortization, and other necessary costs incurred with the extraction and processing of ore. Corporate general and administrative costs are not included in inventory costs.

Because it is generally impracticable to determine the minerals contained in mill stockpiles by physical count, reasonable estimation methods are employed. The quantity of material delivered to the mill stockpiles is based on surveyed volumes of mined material and daily production records. Expected mineral recovery rates from the mill stockpiles are determined by various metallurgical testing methods.

Property and equipment
Property and equipment is carried at cost less accumulated depreciation. Expenditures for replacements and improvements are capitalized. Costs related to periodic maintenance are expensed as incurred. Depletion of the mining assets is determined using the unit-of-production method based on total estimated proven and probable reserves. Depletion and amortization using the unit-of-production method is recorded upon extraction of the ore, at which time it is allocated to inventory cost and then included as a component of cost of goods sold. Other assets are depreciated on a straight-line basis over their estimated useful lives ranging from 3 to 20 years.


Borrowing costs that are directly attributable to the acquisition, construction or production of assets are capitalized as part of the cost of those assets. Assets under construction are capitalized in the construction in progress account. Upon completion, the cost of the related asset is transferred to the appropriate category of property and equipment.











Note 2 - Summary of Significant Accounting Policies - (Continued)

Development costs
Mineral exploration costs, as well as drilling and other costs incurred for the purpose of converting mineral resources to proven and probable reserves or identifying new mineral resources are charged to expense as incurred. Development costs are capitalized beginning after proven and probable reserves have been established. Development costs include costs incurred in mine pre-production activities undertaken to gain access to proven and probable reserves, including shafts, drifts, ramps, permanent excavations, infrastructure and removal of overburden. These costs are deferred net of the proceeds from the sale of any production during the development period and then amortized using an estimated unit-of-production method. If a mine is no longer considered economical, the accumulated costs are charged to the statement of operations in the year in which the determination is made.

Asset impairment
We review and evaluate our long-lived assets for impairment when events or changes in circumstances indicate that the carrying amounts may not be recoverable. Long-lived assets are evaluated for impairment under the two-step model. When events or circumstance suggest impairment of long-lived assets, estimated undiscounted future net cash flows are calculated using future estimated commodity prices, proven and probable reserves, and estimated net proceeds from the disposition of assets on retirement, less operating, sustaining capital, and reclamation costs. If it is determined that an impairment exists, an impairment loss is measured as the amount by which the asset carrying value exceeds its fair value. Fair value is generally determined using valuation techniques such as estimated future cash flows. Because the cash flows used to assess recoverability of our long-lived assets and measure fair value of our mining operations require us to make several estimates and assumptions that are subject to risk and uncertainty, changes in these estimates and assumptions could result in the impairment of our long-lived asset values.

Based on our evaluation, we recorded no impairment losses during the years ended December 31, 2018, 2017 2016 and 2015.2016.

End-of-service indemnities
Employee end-of-service benefits are accrued for the benefit of employees under the terms and conditions of Saudi Labor Law and Regulations and their employment contracts. End-of-service indemnities are provided for and accrued in the financial statements based on the respective employees' salaries and length of service.


Note 2 - Summary of Significant Accounting Policies - (Continued)

Pre-export Advances
At times we receive advances on a pre-export basis against a portion of our inventory on hand prior to shipment. These advances bear interest at 2.5% and are repaid from the proceeds from final concentrate sales. We did not have an outstanding advance liability at December 31, 20172018 and 2016.2017.

Foreign currency
Our functional currency is the Saudi Riyal (SR). In June 1986, the Saudi Riyal was officially pegged to the U.S. Dollar at a fixed exchange rate of 1 U.S. Dollar to 3.75 riyals. Foreign currency transactions are translated into Saudi Riyals at the rates of exchange prevailing at the time of the transactions. Monetary assets and liabilities denominated in foreign currencies at the balance sheet date are translated at the exchange rates prevailing at that date. Any gains and losses from settlement and translation of foreign currency transactions are included in the statement of operations. There were no material foreign-currency exchange gains or losses or translation adjustments during the years ended December 31, 2018, 2017, 2016, and 2015.2016.

Leasing arrangements
We periodically lease operating equipment, facilities, and office buildings. Rentals payable under operating leases are charged to the statements of operations on a straight-line basis over the term of the relevant lease. For any capital leases, the present value of future minimum lease payments at the inception of the lease is reflected as an asset and a liability in the balance sheet. Amounts due within one year are classified as short-term liabilities and the remaining balance as long-term liabilities. Finance charges are charged to the statement of operations. At December 31, 2017, we had no outstanding capital lease obligations.

Operating lease expense amounted to approximately SR1,619,000, SR1,454,000 SR442,000 and SR696,000SR442,000 for the years ended December 31, 2018, 2017 2016 and 2015,2016, respectively.

Environmental costs
Environmental costs are expensed or capitalized, depending upon their future economic benefits. Accruals for such expenditures are recorded when it is probable that obligations have been incurred and the costs can reasonably be estimated. Ongoing compliance costs are expensed as incurred.




Note 2 - Summary of Significant Accounting Policies - (Continued)

Asset retirement obligations and costs
We record the fair value of our estimated asset retirement obligations (AROs) associated with tangible long-lived assets in the period in which the obligation is incurred. AROs associated with long-lived assets are those for which there is a legal obligation to settle under various laws, statues, or regulations. These obligations, which are initially estimated based on discounted cash flow estimates, are accreted to full value over time through charges to cost of revenues. In addition, asset retirement costs (ARCs) are capitalized as part of the related asset'sasset’s carrying value and are depreciated (primarily on a unit-of-production basis) over the asset'sasset’s respective useful life. Our AROs consist primarily of costs associated with mine reclamation and closure activities and are included in deferred mine closure costs on the accompanying balance sheets. At least annually, we review our ARO estimates for changes in the projected timing and changes in cost estimates and additional AROs incurred during the period.

Zakat and income tax
We are subject to the Regulations of the General Authority of Zakat and Tax (GAZT) in the Kingdom of Saudi Arabia. Under these regulations, Zakat is payable at 2.5% on the basis of the portion of our Zakat base attributable to our Saudi stockholders, and income tax is payable at 20% on the portion of our taxable income attributable to our non-Saudi stockholders. Zakat and income tax are provided on an accrual basis. Any difference in the estimate is recorded when the final assessment is approved, at which time the provision is cleared.

We account for deferred income taxes on non-Saudi owners utilizing an asset and liability method, whereby deferred tax assets and liabilities are recognized based on the tax effects of temporary differences between the financial statements and the income tax basis of assets and liabilities, as measured by the effective tax rate. When appropriate, we evaluate the need for a valuation allowance based on a more likely than not threshold to reduce deferred tax assets to estimated recoverable amounts.

We account for uncertain income tax positions using a threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. We report tax-related interest and penalties as a component of Zakat and income tax expense. We recognized no material adjustment for unrecognized income tax liabilities. Zakat and income tax returns for the years from 2010 to 20162017 are currently under review with GAZT.



Note 2 - Summary of Significant Accounting Policies - (Continued)

Reclassifications
Certain reclassifications have been made to the prior periods to conform with current year presentation.  In addition, certain reclassifications have been made to the Balance Sheets for the year ended December 31, 2016, related to our adoption of FASB ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes as noted below in Notes 2 and 9.

Revenue recognition
We sell our products pursuant to sales contracts entered into with a customer who acts as an intermediary and resells our products to end users. Revenue is recognized when title and risk of loss pass to the customer and when collectability is reasonably assured. The passing of title and risk of loss to the customer is based on terms of the sales contract, generally upon shipment or delivery of product.

Sales are recorded based on a provisional sales price or a final sales price calculated in accordance with the terms specified in the relevant sales contract. Under the long-established structure of sales agreements prevalent in the industry, the copper and zinc contained in concentrate is generally "provisionally"provisionally priced at the time of shipment. The provisional price received at the time of shipment is later adjusted to a "final"final price based on quoted monthly average spot prices on the London Metal Exchange (LME) for a specified future month. We record revenues at the time of shipment (when title and risk of loss pass) based on then-current LME prices, and we account for any changes between the sales price recorded at the time of shipment and subsequent changes in the LME prices through the date of final pricing as gains or losses from a derivative embedded in the sales contract (a futures contract initiated at the date of shipment and settled upon the determination of the "final price")final price) which is bifurcated and separately accounted for at fair value. See Note 15.16.

Revenues from concentrate sales are recorded net of treatment and refining charges. These allowances are a negotiated term of each contract. Treatment and refining charges represent payments or price adjustments to smelters and refiners and are either fixed, or in certain cases, vary with the price of metals (referred to as price participation).





Note 2 - Summary of Significant Accounting Policies - (Continued)

Management estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America 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 periods. The most significant areas requiring the use of management estimates include mineral reserve estimation; useful asset lives for depreciation and amortization; zakat and income taxes; environmental obligations; reclamation and closure costs; estimates of recoverable materials in mill stockpiles; fair value of embedded derivatives; end-of-service indemnities; and

asset impairment, including estimates used to derive future cash flows associated with those assets. Actual results could differ from these estimates.

Recent accounting pronouncements
In May 2014 the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). ASU 2014-09 supersedes the revenue recognition requirements of FASB Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition and most industry-specific guidance throughout the Accounting Standards Codification, resulting in the creation of FASB ASC Topic 606, Revenue from Contracts with Customers. ASU 2014-09 requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. For nonpublic companies this ASU provides alternative methods of retrospective adoption and is effective for fiscal years and interim periods within those years, beginning after December 15, 2018. Early adoption is permitted. The Company is in its preliminary stages of evaluating the impact of these amendments, although it does not expect the amendments to have a significant impact to the Company'sCompany’s financial position or results of operation. The amendments could potentially impact the accounting procedures and processes over the recognition of certain revenue sources. The Company is expecting to begin developing processes and procedures during 2018 to ensure it is fully compliant with these amendments at the date of adoption.

In November 2015 the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. The new standard eliminates the current requirement for organizations to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, organizations will be required to classify all deferred tax assets and liabilities as noncurrent. The Company adopted ASU 2015-17 by classifying its deferred tax assets (liabilities) as noncurrent at December 31, 2017 and 2016.

Note 2 - Summary of Significant Accounting Policies - (Continued)

Recent accounting pronouncements - continued
In February 2016 the FASB issued ASU No. 2016-02, Leases (Topic 842), to increase transparency and comparability among organizations by recognizing all lease transactions (with terms in excess of 12 months) on the balance sheet as a lease liability and a right-of-use asset (as defined). The ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with earlier application permitted. Upon adoption, the lessee will apply the new standard retrospectively to all periods presented or retrospectively using a cumulative effect adjustment in the year of adoption. The Company has several lease agreements for which the amendments will require the Company to recognize a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and does not expect to early adopt.

As permitted by the amendments, the Company is anticipating electing an accounting policy to not recognize lease assets and lease liabilities for leases with a term of twelve months or less. The Company is currently in the process of fully evaluatingreviewing the amendments to ensure it is fully compliant by the adoption date and will subsequently implement new processes.does not expect to early adopt. In addition, the Company will change its current accounting policies to comply with the amendments with such changes as mentioned above.

Subsequent events
We have evaluated events and transactions subsequent to the date of the financial statements for matters requiring recognition or disclosure in the financial statements. The accompanying financial statements consider events through March 12, 2018,6, 2019, the date on which the financial statements were available to be issued. See Note 10 – Long-term Debt.

Note 3 – Liquidity and Capital Resources

As shown in the financial statements, we have incurred three consecutive years of net losses. Our losses in 2015 were largely attributable to the depressed commodity prices as well as certain operating inefficiencies from the operating contracts with our former operator. In response to these factors, we took certain steps to protecthowever, the Company resumed full operations and had operating income and cash provided from operations during the shareholders.  We cancelled the operating contractsyear ended December 31, 2018. In addition, we expect to update our mineral resources and life of mine in 2016 (see Note 8) and suspended operations until the first quarter of 2017.  During our shutdown we renovated our facilities to improve recoveries and reduce costs and prepared to self-operate the facility2019 with the assistanceexpectation that the life of a Turkish company. 

Note 3 – Liquidity and Capital Resources – (Continued)

During 2017, we strategically ramped up operations gradually through the second quarter.  We hadmine will be extended another two shipments of ore in 2017 as well as sales of gold and silver. We expect four shipments of ore in 2018. We also expect our operations to be positively impacted by the steady increase of copper and zinc prices which increased over 25% in 2017 compared to 2016.   As noted in Note 10, we did not make our scheduled debt repayments on our outstanding debt.  The Company received correspondence on March 4, 2018 which waived the event of default and deferred the missed payments to 2018. We are currently in negotiations with the SIDF to amend the terms and repayment schedule.

years. We believe that our continued operations and the items discussed aboveadjusted repayment terms of our outstanding debt will provide us the necessary liquidity and capital resources.  There can be no assurances that our operating assumptions and objectives will be met or that our negotiations with the SIDF will be successful.

Note 4 – Inventories

Inventories consisted of the following at:

  December 31, 
  2017  2016 
       
Ore concentrates  12,118,132   - 
Stockpile ore  9,417,626   - 
Precious metal dore  -   4,231,848 
Explosives  485,668   539,284 
Chemicals and other  5,205,506   11,104,048 
         
   27,226,932   15,875,180 

 December 31,
 2018
 2017
Ore concentrates17,020,657
 12,118,132
Stockpile ore19,134,297
 9,417,626
Precious metal dore2,159,192
 
Explosives1,134,728
 485,668
Chemicals and other6,422,246
 5,205,506
    
 45,871,120

27,226,932
As discussed in Note 2, we can receive advances on a pre-export basis on our mill stockpiles.









Note 5 – Advances to Contractors and Other

Advances to contractors and other consisted of the following at:

 December 31, 
 2017  2016 December 31,
      2018
 2017
Advances to contractors  11,992,870   6,782,227 15,127,502
 11,992,870
Prepaid expenses  4,385,449   5,155,614 1,196,218
 4,385,449
Other miscellaneous advances and receivables  3,303,461   1,345,363 2,845,045
 3,353,461
           
  19,681,780   13,283,204 19,168,765

19,731,780
Note 6 – Property and Equipment

Property and equipment, net consisted of the following at:

  December 31, 
  2017  2016 
       
Buildings  191,041,157   190,152,290 
Leasehold improvements  1,838,317   1,838,317 
Heavy equipment  110,259,122   105,298,173 
Motor vehicles  22,783,108   22,788,233 
Civil works  15,582,921   15,081,589 
Tailings dam  22,684,394   22,684,394 
Plant and machinery  315,029,454   282,278,789 
Mining assets – rehabilitation costs  98,894,826   98,894,826 
Mining assets – underground development costs  254,832,012   245,952,161��
Construction in progress  5,532,817   21,964,039 
         
   1,038,478,128   1,006,932,811 
         
Less accumulated depreciation, depletion and amortization  (344,676,457)  (280,403,072)
         
   693,801,671   726,529,739 

Note 6 – Property and Equipment - (Continued)

 December 31,
 2018
 2017
Buildings191,041,157
 191,041,157
Leasehold improvements1,838,317
 1,838,317
Heavy equipment118,125,568
 110,259,122
Motor vehicles22,467,300
 22,783,108
Civil works15,662,671
 15,582,921
Tailings dam23,042,594
 22,684,394
Plant and machinery324,372,695
 315,029,454
Mining assets – rehabilitation costs98,894,826
 98,894,826
Mining assets – underground development costs267,128,896
 254,832,012
Construction in progress5,106,409
 5,532,817
    
 1,067,680,433

1,038,478,128
    
Less accumulated depreciation, depletion and amortization(432,824,358) (344,676,457)
    
 634,856,075

693,801,671
Property and equipment serve as collateral for the SIDF loan agreement (see Note 10).

Depreciation, depletion and amortization expense related to property and equipment was approximately, SR64,300,000SR88,000,000 and SR42,700,000SR64,300,000 for years ended December 31, 20172018 and 2016.2017. During 2016, the mine was temporarily closed for renovation, therefore, no amortization or depletion was recorded on certain mining assets.


Note 7 – Development Costs

Development costs, net consisted of the following at:
  December 31, 
  2017  2016 
       
Cost  289,973,237   289,973,237 
Accumulated amortization  (98,445,057)  (80,292,732)
         
   191,528,180   209,680,505 

 December 31,
 2018
 2017
Cost289,973,237
 289,973,237
Accumulated amortization(134,691,712) (98,445,057)
    
 155,281,525

191,528,180
Development costs are amortized using the unit of production method upon extraction of the ore. Amortization expenses related to development costs was approximately SR18,200,000SR36,250,000 and SR 18,200,000 for the year ended December 31, 2017. During 2016, the mine was temporarily closed for renovation; therefore, no amortization was recorded.2018 and 2017, respectively.


Note 8 – Accounts Payable, Accrued Liabilities and Forgiveness of Liabilities

Accounts payable and accrued liabilities consisted of the following at:

  December 31, 
  2017  2016 
       
Accounts payable and accrued liabilities  17,858,012   11,483,683 
Accrued interest  2,802,493   - 
Accrued salaries and payroll expenses  2,012,113   1,550,926 
         
   22,672,618   13,034,609 


Note 8 – Accounts Payable, Accrued Liabilities and Forgiveness of Liabilities – (Continued)

 December 31,
 2018
 2017
Accounts payable and accrued liabilities26,925,170
 17,858,012
Other381,763
 2,802,493
Accrued salaries and payroll expenses1,450,012
 2,012,113
    
 28,756,945

22,672,618
On March 31, 2016, the Company entered into finalization and discharge memorandums of understanding (MOU's)(MOU’s) with their former mine operator CGM and subcontractor Nesma where certain contracts were cancelled. These contracts includeincluded the EPC Surface Works Contract and Subcontract (CGM/NESMA) dated November 26, 2007, the Underground Mining Contract (CGM) dated June 29, 2010, the 1st Surface Works O&M Contract (CGM) dated July 3, 2011, and the 2nd Surface Works O&M Contract (CGM) dated November 3, 2014 (collectively, the Contracts).

The MOU's areMOU’s were binding agreements between the Company, CGM and Nesma. All of CGM'sCGM’s spare parts on site related to the Contracts shall revertreverted to and becomebecame the property of the Company. CGM received payment of approximately SR4,500,000 and forfeited their rights to the spare parts that had an economic value of approximately SR34,477500.SR34,477,500. The spare parts were recorded at SR4,500,000 and were included in property and equipment, net on the balance sheets. Under the MoU's,MoU’s, CGM and Nesma shalldid not receive any further payments from the Company as full settlement against the deterioration of property, plant and equipment which exceedsexceeded normal wear and tear and any other breach of contracts. In recognition of certain financial losses incurred by the Company, CGM and NESMA agreed to forfeitforfeited the recovery of all remaining amounts due under the Contracts. The total amounts of liabilities recorded on the Company'sCompany’s books as of March 31, 2016 were approximately SR65,345,000 which were written off to other income on the statement of operations for the year ended December 31, 2016. There arewere no outstanding or unresolved claims and all parties have fulfilled their obligations in connection with the Contracts.

Note 9 – Zakat and Income Tax

We have submitted our Zakat and income tax return for the year ended December 31, 20162017 and have obtained our 20162017 Zakat certificate. We are in the process of preparing and submitting our Zakat and income tax return for the year 2017.2018.

The Zakat base for the Saudi shareholders was positive in 2018, 2017 and 2016 and 2015 andthe corresponding Zakat expense and corresponding liability has been recorded. There was a taxable profit attributable to our non–Saudi (foreign) shareholders in 2018 and the current income tax expense and liability has also been recorded. There was no taxable profit attributable to our non-Saudi (foreign) shareholders for 2017 and 2016, and 2015. Therefore,therefore, no current income tax liability is due in those years.



Note 9 – Zakat and Income Tax - (Continued)

The provision for Zakat and income taxes consisted of the following:tax benefit (expense) are as follows:

  Years ended December 31, 
  2017  2016  2015 
          
Non-current deferred income tax benefit  (8,617,706)  (6,694,909)  (10,531,677)
Change in valuation allowance  9,035,670   8,413,167   11,267,893 
Current Zakat expense  3,209,229   1,877,986   1,254,419 
             
Provision for Zakat and income taxes  3,627,193   3,596,244   1,990,635 

 Years ended December 31,
 2018
 2017
 2016
Deferred income tax benefit12,961,569
 8,617,706
 6,694,909
Change in valuation allowance(5,736,640) (9,035,670) (8,413,167)
Current Zakat and income tax expense(5,400,000) (3,209,229) (1,877,986)
      
Zakat and income tax benefit (expense)1,824,929

(3,627,193)
(3,596,244)
The difference between the effective income tax rate and the statutory rate for non-Saudi shareholders of 20% for the years ended December 31, 2018, 2017, 2016, and 2015,2016, relates to changes in the valuation allowance and adjustments to estimates in depreciation.

Tax effects of temporary differences that give rise to significant portions of non-Saudi owners deferred tax assets and deferred tax liabilities were as follows:

  December 31, 
  2017  2016 
    
Deferred tax assets:      
  Loss carryforward  42,883,732   33,478,181 
  Other  468,568   302,140 
         
   43,352,300   33,780,321 
Deferred tax liabilities:        
  Property and Equipment  (21,236,472)  (20,282,197)
         
Net deferred tax asset  22,115,828   13,498,124 
Valuation allowance  (33,133,542)  (24,097,872)
         
Net deferred tax liability  (11,017,714)  (10,599,748)



Note 9 – Zakat and Income Tax – (Continued)

 December 31,
 2018
 2017
Deferred tax assets:   
Loss carryforward42,194
 42,884
Other657
 469
    
 42,851

43,352
Deferred tax liabilities:   
Property and Equipment(7,806) (21,236)
    
Net deferred tax asset35,045

22,116
Valuation allowance(38,837) (33,134)
    
Net deferred tax liability(3,793)
(11,018)
At December 31, 20172018 and 2016,2017, we had tax loss carryforwards totaling approximately SR214,418,000SR210,970,000 and SR167,390,000.SR214,418,000. Tax losses may be carried forward indefinitely subject to certain annual limitations for non-Saudi shareholders. We have provided a valuation allowance in 20172018 and 20162017 against a portion of our gross deferred tax assets because of uncertainties regarding their realization.


Note 10 - Long-term Debt

During 2010, the Company entered into a loan agreement with the Saudi Industrial Development Fund (SIDF) for SR330,000,000 to finish the development of the mine and provide working capital. The loan originally matured in 2019, however, the agreement was amended during 2015 to adjust the maturity date to 2022 as well as the repayment schedule. We did not make certain scheduled loan repayments due in 2017 and 2018 and engaged with SIDF to renegotiate the terms of the debt. In July 2018, we amended our agreement with SIDF to adjust the repayment schedule and extend the maturity date to 2024. Under the terms of the agreement with SIDF, we are required to maintain certain financial covenants, among other requirements. We did not make our second scheduled loan repayment of SR10,000,000 in 2017 nor our payment of SR15,000,000 due in January 2018 and were in default.  The Company received correspondence on March 4, 2018 which waived the event of default and deferred the missed payments to 2018. We are currently negotiating with the SIDF to renegotiate the terms and repayment schedule of the loan agreement. The loan agreement is collateralized by all the assets of Company and is guaranteed by the shareholders.

Long-term debts are summarized as follows at:

  December 31, 
  2017  2016 
       
SIDF loan agreement  305,000,000   310,000,000 
Deferred finance charges  (10,917,190)  (12,527,923)
Total debt  294,082,810   297,472,077 
         
Less current portion  65,000,000   15,000,000 
         
Total long-term debt, less current portion  229,082,810   282,472,077 





 December 31,
 2018
 2017
SIDF loan agreement305,000,000
 305,000,000
Deferred finance charges(8,741,288) (10,917,190)
Total debt296,258,712
 294,082,810
    
Less current portion30,000,000
 65,000,000
    
Total long-term debt, less current portion266,258,712
 229,082,810
Note 10 - Long-term Debt – (Continued)

Deferred finance costs are comprised of SIDF loan origination charges which are capitalized and amortized over the period of the related loan which approximates the interest method. Loan fees of SR10,917,190SR8,741,288 and SR12,527,923SR10,917,190 net of accumulated amortization are included net with long-term debt at December 31, 20172018 and 2016.2017. Amortization of loan fees amounted to approximately SR1,639,000, SR1,611,000, SR2,148,000, and SR2,622,000SR2,148,000 for the years ended December 31, 2018, 2017, and 2016, 2015, and 2014, respectively.

The loan is repayable in increasing semi-annual installments. The repayment schedule prior to any changes from the negotiations with SIDF discussed above is as follows:


Years Ending
December 31,
    
    
2018  65,000,000 
2019  50,000,000 30,000,000
2020  60,000,000 50,000,000
2021  60,000,000 60,000,000
2022  70,000,000 60,000,000
202370,000,000
Thereafter35,000,000
     
  305,000,000 305,000,000

Note 11 – End-of-Service Indemnities

The change in the end-of-service indemnities provision is as follows:

  Years Ended December 31, 
  2017  2016 
       
Balance, beginning of year  1,480,636   1,745,433 
Provision for the year  1,375,024   1,032,104 
Paid during the year  (337,131)  (1,296,901)
Balance, end of year  2,518,529   1,480,636 


 Years Ended December 31,
 2018
 2017
Balance, beginning of year2,518,529
 1,480,636
Provision for the year1,347,418
 1,375,024
Paid during the year(216,058) (337,131)
Balance, end of year3,649,889

2,518,529
Note 12 – Asset Retirement Obligations

During 2012, we recorded an ARO for deferred mine closure costs of approximately SR12,843,000. These deferred mine closure costs are being amortized over the estimated life of the mine which is approximately 11.5 years.mine. Amortization expense for 2017, 2016, and 2015 was approximately SR745,000, SR1,117,000, and SR1,117,000 for each respective year.the years ended December 31, 2018, 2017, and 2016.

Deferred mine closure costs consisted of the following at:
  December 31, 
  2017  2016 
       
Cost  12,842,625   12,842,625 
Accumulated amortization  (6,142,126)  (5,025,375)
         
   6,700,499   7,817,250 

 December 31,
 2018
 2017
Cost12,842,625
 12,842,625
Accumulated amortization(6,886,626) (6,142,126)
    
 5,955,999

6,700,499
A summary of changes in our provision for mine closure costs is as follows:

  Years Ended December 31, 
  2017  2016  2015 
          
Balance, beginning of year  14,995,109   14,488,028   13,998,094 
Accretion expense  524,829   507,081   489,934 
             
Balance, end of year  15,519,938   14,995,109   14,488,028 

 Years Ended December 31,
 2018
 2017
 2016
Balance, beginning of year15,519,938
 14,995,109
 14,488,028
Accretion expense543,198
 524,829
 507,081
      
Balance, end of year16,063,136

15,519,938

14,995,109
ARO costs may increase or decrease significantly in the future as a result of changes in regulations, changes in engineering designs and technology, permit modifications or updates, changes in mine plans, inflation or other factors and as actual reclamation spending occurs.


Note 13 – General and Administrative Expenses

A summary of general and administrative expenses is as follows:

 Years Ended December 31, 
 2017  2016  2015 Years Ended December 31,
         2018
 2017
 2016
Wages, salaries and related costs  14,837,901   10,053,109   10,459,516 17,036,965
 14,837,901
 10,195,511
Depreciation  -   -   235,605 
Mine closure and environmental  1,641,580   1,623,831   1,606,683 1,287,698
 1,641,580
 1,623,831
Office expenses  4,268,282   5,124,983   5,911,485 9,287,218
 6,589,090
 5,491,679
Travel and accommodation  3,025,206   1,611,793   1,686,018 593,046
 2,958,938
 1,477,413
Professional fees  2,272,224   8,169,121   3,972,898 1,271,071
 2,272,224
 8,169,121
Other  611,711   374,718   761,252 
                 
  26,656,904   26,957,555   24,633,457 29,475,998

28,299,733

26,957,555
Note 14- Commitments and Contingencies

Lease commitmentsOperating lease obligations
Our lease commitment for our surface mining lease was initially granted for a period of 30 years through 2024. The lease allows for renewal for an additional 20 years. We entered intoalso have leases for a newour corporate officeoffices and three residential villas in Najran through 2025. During 2015, we entered intoThere is also a new mining lease that covers the Guyan area for a period of 20 years. No significant new leases were entered into during 2017 or 2016. A summary of these commitments are as follows:

Years Ending
December 31,
   
    
2018  913,333 
2019  990,000 
2020  990,000 
2021  990,000 
2022  990,000 
Thereafter  3,467,500 
     
   8,340,833 
Years Ending
December 31,
 
  
2019990,000
2020990,000
2021990,000
2022990,000
2023550,000
Thereafter1,650,000
  
 6,160,000

Capital lease obligations
We lease certain equipment vehicles under capital lease obligations that are set to expire at various dates through 2021. The future minimum lease payments under the capital lease obligations are as follows for the years ending December 31,:

27
2019250,526
2020250,526
2021147,558
Total minimum lease payments648,610
Less deferred financial charges(95,593)
Total capital lease obligations553,017
Less: current portion of capital lease obligations193,206
Total long term portion, net current portion359,811



Note 15 - Fair Value Measurement

Fair value accounting guidance includes a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 inputs) and the lowest priority to unobservable inputs (Level 3 inputs).

Level 1Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2Quoted prices in markets that are not active, quoted prices for similar assets or liabilities in active markets, inputs other than quoted prices that are observable for the asset or liability, or inputs that are derived principally from or corroborated by observable market data by correlation or other means; and

Level 3Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (supported by little or no market activity).

We did not have any significant transfers in or out of Levels 1, 2, or 3 in 20172018 or 2016.2017. The embedded derivatives in our provisional sales contracts are considered Level 2 measurements.

Note 16Embedded Derivatives

As described in Note 2 under "RevenueRevenue Recognition," our concentrate sales contracts provide for provisional pricing based on the LME price at the time of shipment as specified in the contract. Sales contracts with a provisional sales price contain an embedded derivative (i.e., the price settlement mechanism that is settled after the time of delivery) that is required to be bifurcated from the host contract. The host contract is the sale of the metals contained in the concentrates at the then-current LME price as defined in the contract. Mark-to-market price fluctuations recorded through the settlement date are reflected in revenues for sales contracts. Our embedded derivatives at December 31, 2018 and 2017, were not significant to the financial statements.  We had no embedded derivatives at December 31, 2016.





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