Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically ~~and posted on its corporate Web site, 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). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The Company had ~~61,807,147~~56,723,537 shares of common stock, $1.00 par value per share, outstanding as of ~~February 6, 2018.~~August 4, 2021.

	Three Months Ended December 31						Three Months Ended June 30						Nine Months Ended June 30
	2017			2016			2021			2020			2021			2020
	(In millions, except per share amounts)						(In millions, except per share amounts)
Net sales and other operating revenues	$	720		$	611		$	917		$	518		$	2,505		$	1,955
Cost of sales		542			452			703			449			1,884			1,592
Gross profit		178			159			214			69			621			363
Selling and administrative expenses		69			63			68			52			200			230
Research and technical expenses		15			12			12			13			41			41
Specialty Fluids loss on sale and asset impairment charge								—			—			—			1
Income (loss) from operations		94			84			134			4			380			91
Interest and dividend income		3			2			2			1			6			7
Interest expense		(13	)		(13	)		(12	)		(13	)		(37	)		(41	)
Other income (expense)		8			2			(1	)		(3	)		(9	)		(6	)
Income (loss) from continuing operations before income taxes and equity in earnings of affiliated companies		92			75
Income (loss) before income taxes and equity in earnings of affiliated companies								123			(11	)		340			51
(Provision) benefit for income taxes		(205	)		(18	)		(30	)		5			(93	)		(9	)
Equity in earnings of affiliated companies, net of tax		1			2			2			1			3			2
Net income (loss)		(112	)		59			95			(5	)		250			44
Net income (loss) attributable to noncontrolling interests, net of tax		10			4			9			1			29			10
Net income (loss) attributable to Cabot Corporation	$	(122	)	$	55		$	86		$	(6	)	$	221		$	34

Weighted-average common shares outstanding:
Basic		61.9			62.2			56.7			56.5			56.7			56.7
Diluted		61.9			62.8			57.0			56.5			56.8			56.7

Earnings per common share:
Earnings (loss) per common share:
Basic	$	(1.98	)	$	0.87		$	1.48		$	(0.12	)	$	3.85		$	0.59
Diluted	$	(1.98	)	$	0.86		$	1.48		$	(0.12	)	$	3.84		$	0.59

Dividends per common share	$	0.315		$	0.30

The accompanying notes are an integral part of these consolidated financial statements.

	Three Months Ended December 31						Three Months Ended June 30						Nine Months Ended June 30
	2017			2016			2021			2020			2021			2020
	(In millions)						(In millions)
Net income (loss)	$	(112	)	$	59		$	95		$	(5	)	$	250		$	44
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment, net of tax provision (benefit) of $(2) and $2		—			(125	)
Foreign currency translation adjustment, net of tax								71			31			89			(4	)
Derivatives: net investment hedges
(Gains) losses reclassified to interest expense, net of tax provision of $— and $—		(1	)		—
Pension and other postretirement benefit liability adjustments
Amortization of net loss and prior service credit included in net periodic benefit cost, net of tax		—			1
(Gains) losses reclassified to interest expense, net of tax								(1	)		(1	)		(4	)		(3	)
(Gains) losses excluded from effectiveness testing and amortized to interest expense, net of tax								—			—			1			1
Pension and other postretirement benefit liability adjustments, net of tax								2			1			6			2
Other comprehensive income (loss)		(1	)		(124	)		72			31			92			(4	)
Comprehensive income (loss)		(113	)		(65	)		167			26			342			40
Net income (loss) attributable to noncontrolling interests, net of tax		10			4			9			1			29			10
Foreign currency translation adjustment attributable to noncontrolling interests, net of tax		3			(4	)		3			2			8			2
Comprehensive income (loss) attributable to noncontrolling interests, net of tax		13			—			12			3			37			12
Comprehensive income (loss) attributable to Cabot Corporation	$	(126	)	$	(65	)	$	155		$	23		$	305		$	28

The accompanying notes are an integral part of these consolidated financial statements.

	December 31, 2017		September 30, 2017		June 30, 2021		September 30, 2020
	(In millions)				(In millions)
Current assets:
Cash and cash equivalents	$	189	$	280	$	173	$	151
Accounts and notes receivable, net of reserve for doubtful accounts of $10 and $9		551		527
Accounts and notes receivable, net of reserve for doubtful accounts of $3 and $2						633		418
Inventories:
Raw materials		112		93		141		82
Work in process		2		2
Finished goods		318		293		293		225
Other		46		45		53		52
Total inventories		478		433		487		359
Prepaid expenses and other current assets		63		59		77		50
Total current assets		1,281		1,299		1,370		978
Property, plant and equipment, net		1,329		1,305		1,359		1,314
Goodwill		184		154		142		134
Equity affiliates		54		56		41		39
Intangible assets, net		164		137		103		103
Assets held for rent		104		104
Deferred income taxes		27		237		46		53
Other assets		46		46		164		160
Total assets	$	3,189	$	3,338	$	3,225	$	2,781

The accompanying notes are an integral part of these consolidated financial statements.

	December 31, 2017			September 30, 2017			June 30, 2021			September 30, 2020
	(In millions, except share						(In millions, except share
	and per share amounts)						and per share amounts)
Current liabilities:
Notes payable	$	7		$	7
Short-term borrowings							$	59		$	14
Accounts payable and accrued liabilities		475			457			602			488
Income taxes payable		20			22			34			20
Current portion of long-term debt		286			256			9			7
Total current liabilities		788			742			704			529
Long-term debt		631			661			1,088			1,094
Deferred income taxes		20			38			58			58
Other liabilities		252			245			281			286
Redeemable preferred stock		26			27
Commitments and contingencies (Note H)
Stockholders’ equity:
Contingencies (Note G)
Stockholders' equity:
Preferred stock:
Authorized: 2,000,000 shares of $1 par value		—			—			—			—
Issued and Outstanding: None and none
Issued and Outstanding: NaN and NaN
Common stock:
Authorized: 200,000,000 shares of $1 par value
Issued: 61,999,921 and 62,087,627 shares
Outstanding: 61,796,641 and 61,884,347 shares		62			62
Less cost of 203,280 and 203,280 shares of common treasury stock		(6	)		(6	)
Additional paid-in capital		—			—
Authorized: 200,000,000 shares of $1 par value, Issued: 56,866,956 and 56,616,030 shares, Outstanding: 56,723,495 and 56,466,638 shares								57			57
Less cost of 143,461 and 149,392 shares of common treasury stock								(4	)		(4	)
Retained earnings		1,555			1,707			1,169			989
Accumulated other comprehensive income (loss)		(263	)		(259	)		(267	)		(351	)
Total Cabot Corporation stockholders' equity		1,348			1,504			955			691
Noncontrolling interests		124			121			139			123
Total stockholders' equity		1,472			1,625			1,094			814
Total liabilities and stockholders’ equity	$	3,189		$	3,338
Total liabilities and stockholders' equity							$	3,225		$	2,781

The accompanying notes are an integral part of these consolidated financial statements.

	Three Months Ended December 31						Nine Months Ended June 30
	2017			2016			2021			2020
	(In millions)						(In millions)
Cash Flows from Operating Activities:
Net income (loss)	$	(112	)	$	59		$	250		$	44
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization		39			38			117			117
Deferred tax provision (benefit)		186			(1	)		4			(20	)
Gain on sale of investments		(10	)		—
Equity in net income of affiliated companies		(1	)		(2	)
Employee benefit plan settlement								7			—
Equity in earnings of affiliated companies								(3	)		(2	)
Non-cash compensation		6			5			16			5
Other non-cash (income) expense								10			4
Cash dividends received from equity affiliates								2			1
Changes in assets and liabilities:
Accounts and notes receivable		(19	)		28			(198	)		172
Inventories		(41	)		(36	)		(125	)		74
Prepaid expenses and other current assets		(4	)		2
Prepaid expenses and other assets								(15	)		(25	)
Accounts payable and accrued liabilities		10			22			97			(68	)
Income taxes payable		(3	)		(4	)		12			(10	)
Other liabilities		(10	)		(7	)		(17	)		(14	)
Cash dividends received from equity affiliates		4			3
Cash provided by operating activities		45			107

Cash provided (used) by operating activities								157			278
Cash Flows from Investing Activities:
Additions to property, plant and equipment		(52	)		(22	)		(115	)		(162	)
Cash paid for acquisition of business, net of cash acquired of $1		(64	)		—
Proceeds from sale of investments		10			—
Change in assets held for rent		—			(1	)
Cash paid for acquisition of businesses, net of cash acquired of $— and $1								—			(92	)
Other		5			—			5			2
Cash used in investing activities		(101	)		(23	)

Cash provided (used) by investing activities								(110	)		(252	)
Cash Flows from Financing Activities:
Repayments under financing arrangements		—			(4	)
Increase in notes payable, net		—			4
Proceeds from issuance (repayments) of commercial paper, net								46			(20	)
Proceeds from long-term debt								150			444
Repayments of long-term debt								(167	)		(334	)
Purchases of common stock		(16	)		(16	)		(2	)		(44	)
Proceeds from sales of common stock		—			3			5			3
Cash dividends paid to noncontrolling interests								(20	)		(26	)
Cash dividends paid to common stockholders		(20	)		(19	)		(60	)		(60	)
Cash used in financing activities		(36	)		(32	)
Cash provided (used) by financing activities								(48	)		(37	)
Effects of exchange rate changes on cash		1			(63	)		23			4
Increase (decrease) in cash and cash equivalents		(91	)		(11	)		22			(7	)
Cash and cash equivalents at beginning of period		280			200			151			169
Cash and cash equivalents at end of period	$	189		$	189		$	173		$	162

The accompanying notes are an integral part of these consolidated financial statements.

	Common Stock, Net of Treasury Stock					Additional Paid-in			Retained			Accumulated Other Comprehensive			Total Cabot Corporation Stockholders’			Noncontrolling			Total Stockholders’
	Shares			Cost		Capital			Earnings			Income (Loss)			Equity			Interests			Equity
	(In millions, except share amounts)
Balance at September 30, 2020		56,467		$	53	$	—		$	989		$	(351	)	$	691		$	123		$	814
Net income (loss)										60						60			10			70
Total other comprehensive income (loss)													89			89			7			96
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Cash dividends declared to noncontrolling interests																			(1	)		(1	)
Issuance of stock under equity compensation plans		192			—		1									1						1
Amortization of share-based compensation							4									4						4
Purchase and retirement of common stock		(53	)		—		(2	)								(2	)					(2	)
Amount reclassified to retained earnings in excess of additional paid in capital							(3	)		3						—						—
Balance at December 31, 2020		56,606		$	53	$	—		$	1,032		$	(262	)	$	823		$	139		$	962
Net income (loss)										75						75			10			85
Total other comprehensive income (loss)													(74	)		(74	)		(2	)		(76	)
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Cash dividends declared to noncontrolling interests																			(11	)		(11	)
Issuance of stock under equity compensation plans		17			—		1									1						1
Amortization of share-based compensation							6									6						6
Purchase and retirement of common stock		(1	)		—		—			—						—						—
Amount reclassified to retained earnings in excess of additional paid in capital							(7	)		7						—						—
Balance at March 31, 2021		56,622		$	53	$	—		$	1,094		$	(336	)	$	811		$	136		$	947
Net income (loss)										86						86			9			95
Total other comprehensive income (loss)													69			69			3			72
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Cash dividends declared to noncontrolling interests																—			(9	)		(9	)
Issuance of stock under equity compensation plans		103			—		3									3						3
Amortization of share-based compensation							6									6						6
Purchase and retirement of common stock		(2	)		—		—			—						—						—
Amount reclassified to retained earnings in excess of additional paid in capital							(9	)		9						—						—
Balance at June 30, 2021		56,723		$	53	$	—		$	1,169		$	(267	)	$	955		$	139		$	1,094

The accompanying notes are an integral part of these consolidated financial statements.

	Common Stock, Net of Treasury Stock					Additional Paid-in			Retained			Accumulated Other Comprehensive			Total Cabot Corporation Stockholders’			Noncontrolling			Total Stockholders’
	Shares			Cost		Capital			Earnings			Income (Loss)			Equity			Interests			Equity
	(In millions, except share amounts)
Balance at September 30, 2019		57,081		$	52	$	—		$	1,337		$	(391	)	$	998		$	136		$	1,134
Adoption of accounting standards									$	3		$	(3	)		—						—
Net income (loss)										41						41			5			46
Total other comprehensive income (loss)													40			40			3			43
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Cash dividend declared to noncontrolling interests																			(19	)		(19	)
Issuance of stock under equity compensation plans		273			—		1									1						1
Amortization of share-based compensation							1									1						1
Purchase and retirement of common stock		(699	)		—		(2	)		(32	)					(34	)					(34	)
Balance at December 31, 2019		56,655		$	52	$	—		$	1,329		$	(354	)	$	1,027		$	125		$	1,152
Net income (loss)										(1	)					(1	)		4			3
Total other comprehensive income (loss)													(75	)		(75	)		(3	)		(78	)
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Cash dividend declared to noncontrolling interests																			(16	)		(16	)
Issuance of stock under equity compensation plans		30			—		2									2						2
Amortization of share-based compensation							2									2						2
Purchase and retirement of common stock		(241	)		—		(4	)		(6	)					(10	)					(10	)
Balance at March 31, 2020		56,444		$	52	$	—		$	1,302		$	(429	)	$	925		$	110		$	1,035
Net income (loss)										(6	)					(6	)		1			(5	)
Total other comprehensive income (loss)													29			29			2			31
Cash dividends paid:
Common stock, $0.35 per share										(20	)					(20	)					(20	)
Issuance of stock under equity compensation plans		18			1		(1	)								—						—
Amortization of share-based compensation							2									2						2
Purchase and retirement of common stock		(2	)		—		(1	)		1						—						—
Balance at June 30, 2020		56,460		$	53	$	—		$	1,277		$	(400	)	$	930		$	113		$	1,043

The accompanying notes are an integral part of these consolidated financial statements.

The consolidated financial statements have been prepared in conformity with accounting policies generally accepted in the United States (“U.S.”) and include the accounts of Cabot Corporation (“Cabot” or the “Company”) and its wholly owned subsidiaries and majority-owned and controlled U.S. and non-U.S. subsidiaries. Additionally, Cabot considers consolidation of entities over which control is achieved through means other than voting rights. Intercompany transactions have been eliminated in consolidation.

The unaudited consolidated financial statements have been prepared in accordance with the requirements of Form 10-Q and consequently do not include all disclosures required by Form 10-K. Additional information may be obtained by referring to Cabot’s Annual Report on Form 10-K for its fiscal year ended September 30, ~~2017~~2020 (“~~2017~~2020 10-K”).

The financial information submitted herewith is unaudited and reflects all adjustments which are, in the opinion of management, necessary to provide a fair statement of the results for the interim periods ended ~~December 31, 2017~~June 30, 2021 and ~~2016.~~2020. All such adjustments are of a normal recurring nature. The results for interim periods are not necessarily indicative of the results to be expected for the fiscal year.

Effective October 1, 2017, the Company changed its method of accounting for its U.S. carbon black inventories from the last-in, first-out (“LIFO”) method to the first-in, first-out (“FIFO”) method. The Company applied this change retrospectively to all prior periods presented, which is discussed in further detail in Note B.

As discussed in Note C, in November 2017, the Company acquired all of the issued and outstanding shares of 8755329 Canada Inc. (“Tech Blend”), a North American producer of black masterbatches. The financial position, results of operations and cash flows of Tech Blend are included in the Company’s consolidated financial statements from the date of acquisition.

Cabot recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable and collectability is reasonably assured. Cabot generally is able to ensure that products meet customer specifications prior to shipment. If the Company is unable to determine that the product has met the specified objective criteria prior to shipment or if title has not transferred because of sales terms, the revenue is considered “unearned” and is deferred until the revenue recognition criteria are met.

Shipping and handling charges related to sales transactions are recorded as sales revenue when billed to customers or included in the sales price. Taxes collected on sales to customers are excluded from revenues.

~~The following table shows the relative size of the revenue recognized in each of the Company’s reportable segments.~~

Cabot derives the substantial majority of its revenues from the sale of products in its Reinforcement Materials, Performance Chemicals, and Purification Solutions segments. Revenue from these products is typically recognized when the product is shipped and title and risk of loss have passed to the customer. The Company offers certain of its customers cash discounts and volume rebates as sales incentives. The discounts and volume rebates are recorded as a reduction in sales at the time revenue is recognized and are estimated based on historical experience and contractual obligations. Cabot periodically reviews the assumptions underlying its estimates of discounts and volume rebates and adjusts its revenues accordingly.

~~For major activated carbon injection systems projects in Purification Solutions, revenue is recognized using the percentage-of-completion method.~~

Revenue in Specialty Fluids arises primarily from the rental of cesium formate. This revenue is recognized throughout the rental period based on the contracted rental terms. Customers are also billed and revenue is recognized, typically at the end of the job, for cesium formate product that is not returned. The Company also generates revenues from cesium formate sold outside of the rental process and from the sale of fine cesium chemicals. This revenue is recognized upon delivery of the product.

Cabot maintains allowances for doubtful accounts based on an assessment of the collectability of specific customer accounts, the aging of accounts receivable and other economic information on both a historical and prospective basis. Customer account balances are charged against the allowance when it is probable the receivable will not be recovered. There were no material changes in the allowance for any of the periods presented. There is no material off-balance sheet credit exposure related to customer receivable balances.

The Company records tangible and intangible assets acquired and liabilities assumed in business combinations under the acquisition method of accounting. Amounts paid for an acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. The Company uses assumptions and estimates in determining the fair value of assets acquired and liabilities assumed in a business combination. The determination of the fair value of intangible assets requires the use of significant judgment with regard to assumptions used in the valuation model. The Company estimates the fair value of identifiable acquisition-related intangible assets principally based on projections of cash flows that will arise from these assets. The projected cash flows are discounted to determine the fair value of the assets at the dates of acquisition. The Company acquired Tech Blend in November 2017, which included separately identifiable intangible assets of $31 million as part of the preliminary purchase price allocation as discussed in Note C.

Goodwill is comprised of the purchase price of business acquisitions in excess of the fair value assigned to the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but is reviewed for impairment annually as of May 31, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value. A reporting unit, for the purpose of the impairment test, is at or below the operating segment level, and constitutes a business for which discrete financial information is available and regularly reviewed by segment management. As part of the Tech Blend acquisition, goodwill of $31 million was generated and is reflected in the Specialty Compounds reporting unit. The other reporting units with goodwill balances are Reinforcement Materials, Purification Solutions and Fumed Metal Oxides. The separate businesses included within Performance Chemicals are considered separate reporting units. As such, the goodwill balances relative to Performance Chemicals are recorded in the Fumed Metal Oxides and Specialty Compounds reporting units.

For the purpose of the goodwill impairment test, the Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. 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, an additional quantitative evaluation is performed. Alternatively, the Company may elect to proceed directly to the quantitative goodwill impairment test. If based on the quantitative evaluation the fair value of the reporting unit is less than its carrying amount, a goodwill impairment loss would result. The goodwill impairment loss would be the amount by which the carrying value of the reporting unit, including goodwill, exceeds its fair value, limited to the total amount of goodwill allocated to that reporting unit. The fair value of a reporting unit is based on discounted estimated future cash flows. The fair value is also benchmarked against a market approach using the guideline public companies method. The assumptions used to estimate fair value include management’s best estimates of future growth rates, operating cash flows, capital expenditures and discount rates over an estimate of the remaining operating period at the reporting unit level.

Based on the Company’s most recent annual goodwill impairment test performed as of May 31, 2017, the fair values of the Reinforcement Materials and Fumed Metal Oxides reporting units were substantially in excess of their carrying values. The fair value of the Purification Solutions reporting unit exceeded its carrying amount by 13%. The fair value of the Purification Solutions reporting unit includes certain growth assumptions that are primarily dependent on: (1) growth in demand for Cabot’s existing portfolio of activated carbon products and new products developed for environmental and specialty applications; and (2) stable demand in the mercury removal related portion of the business, which is largely dependent on the amount of coal-based power generation used in the United States and the continued regulation of those utilities under the U.S. Mercury and Air Toxics Standards regulation (“MATS”). In April 2017, the U.S. Environmental Protection Agency (“EPA”) indicated that it intends to review the cost benefit analysis previously prepared by the EPA in support of MATS to determine if the EPA should reconsider MATS or some part of it. This analysis continues to be under review by the EPA.In addition, the Company continues to review its strategic options for this business and look for opportunities to better position the business for growth and long-term value enhancement. Failure to achieve the Company’s projected growth in environmental or specialty applications, actions taken by the EPA related to MATS that decrease demand for the Company’s products, or the result of the strategic options or opportunities the Company may pursue could have a negative impact on the fair value of the Purification Solutions reporting unit, which may lead to impairment.

The Company’s long-lived assets primarily include property, plant and equipment, intangible assets, long-term investments and assets held for rent. The carrying values of long-lived assets are reviewed for impairment whenever events or changes in business circumstances indicate that the carrying amount of an asset may not be recoverable.

To test for impairment of assets, the Company generally uses a probability-weighted estimate of the future undiscounted net cash flows of the assets over their remaining lives to determine if the value of the asset is recoverable. Long-lived assets are grouped with other assets and liabilities at the lowest level for which independent identifiable cash flows are determinable.

An asset impairment is recognized when the carrying value of the asset is not recoverable based on the analysis described above, in which case the asset is written down to its fair value. If the asset does not have a readily determinable market value, a discounted cash flow model may be used to determine the fair value of the asset. In circumstances when an asset does not have separately identifiable cash flows, an impairment charge is recorded when the Company no longer intends to use the asset.

Property, plant and equipment are recorded at cost. Depreciation of property, plant and equipment is calculated using the straight-line method over the estimated useful lives. The depreciable lives for buildings, machinery and equipment, and other fixed assets are between twenty and twenty-five years, ten and twenty-five years, and three and twenty-five years, respectively. The cost and accumulated depreciation for property, plant and equipment sold, retired, or otherwise disposed of are removed from the Consolidated Balance Sheets and resulting gains or losses are included in earnings in the Consolidated Statements of Operations. Expenditures for repairs and maintenance are charged to expenses as incurred. Expenditures for major renewals and betterments, which significantly extend the useful lives of existing plant and equipment, are capitalized and depreciated.

The Company records its tax provision or benefit on an interim basis using an estimated annual effective tax rate. This rate is applied to the current period ordinary income or loss to determine the income tax provision or benefit allocated to the interim period. Losses from jurisdictions for which no benefit can be recognized and the income tax effects of unusual or infrequent items are excluded from the estimated annual effective tax rate and are recognized in the impacted interim period.

Valuation allowances are provided against the future tax benefits that arise from the deferred tax assets in jurisdictions for which no benefit can be recognized. The estimated annual effective tax rate may be significantly impacted by nondeductible expenses and the Company’s projected earnings mix by tax jurisdiction. Adjustments to the estimated annual effective income tax rate are recognized in the period when such estimates are revised.

Inventories are stated at the lower of cost or market. Effective October 1, 2017, the Company changed its method of accounting for its U.S. carbon black inventories from the LIFO method to the FIFO method. Total U.S. inventories accounted for utilizing the LIFO cost flow assumption represented 7% of the Company’s total worldwide inventories as of September 30, 2017 prior to this change in method. The Company believes the FIFO method is preferable because it: (i) conforms the accounting for U.S. carbon black inventories to the Company’s inventory valuation methodology for the majority of its other inventories; (ii) better represents how management assesses and reports on the performance of the Reinforcement Materials and Performance Chemicals operating segments that carry the Company’s U.S. carbon black inventories, as the impact of accounting for this inventory on a LIFO basis has historically been excluded from segment results; (iii) better aligns the accounting for U.S. carbon black inventories with the physical flow of that inventory; and (iv) improves comparability with many of the Company’s peers.

The Company applied this change retrospectively to all prior periods presented. This change resulted in a $17 million increase in retained earnings as of October 1, 2016, from $1,544 million to $1,561 million. In addition, the following financial statement line items in the Company’s Consolidated Balance Sheets as of September 30, 2017 and its Consolidated Statements of Operations and Consolidated Statements of Cash Flows for the three months ended December 31, 2016 were adjusted as follows:

If the Company had continued to account for its U.S. carbon black inventories under LIFO, there would have been an impact of less than $1 million to Cost of sales, (Provision) for income taxes and Net (loss) attributable to Cabot Corporation, and an increase of $~~0.01~~ in both basic and diluted loss per common share in the Consolidated Statements of Operations for the three months ended December 31, 2017. The impact to the Consolidated Balance Sheets as of December 31, 2017 would have been a decrease of $37 ~~million in Inventories, an increase of $~~13 ~~million in Deferred income taxes, and a decrease of $~~24 ~~million in Retained earnings.~~

~~The cost of Specialty Fluids inventories that are classified as assets held for rent is determined using the average cost method. The cost of all other inventories is determined using the FIFO method.~~

Cabot periodically reviews inventory for both potential obsolescence and potential declines in anticipated selling prices. In this review, the Company makes assumptions about the future demand for and market value of the inventory, and based on these assumptions estimates the amount of any obsolete, unmarketable, slow moving, or overvalued inventory. Cabot writes down the value of these inventories by an amount equal to the difference between the cost of the inventory and its estimated net realizable value.

The Company recognizes the funded status of defined benefit pension and other postretirement benefit plans as an asset or liability. This amount is defined as the difference between the fair value of plan assets and the benefit obligation. The Company is required to recognize as a component of other comprehensive income (loss), net of tax, the actuarial gains/losses and prior service costs/credits that arise but were not previously required to be recognized as components of net periodic benefit cost. Other comprehensive income (loss) is adjusted as these amounts are later recognized in income as components of net periodic benefit cost.

Accumulated other comprehensive income (loss) (“AOCI”), which is included as a component of stockholders’ equity, includes unrealized gains or losses on available-for-sale marketable securities and derivative instruments, currency translation adjustments in foreign subsidiaries, translation adjustments on foreign equity securities and minimum pension liability adjustments.

In ~~March~~June 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard that amends the accounting standard for stock compensation by simplifying several aspects of the accounting for employee share-based payment transactions, including the related accounting for income taxes, forfeitures, and the withholding of shares to satisfy the employer’s tax withholding requirements, as well as classification in the statements of cash flows. The Company adopted the standard on October 1, 2017. The following guidance was updated under the new standard, and its impact to Cabot is described below:

~~In August 2017,~~ the FASB issued a new standard on measurement of credit losses. The standard introduces a new "expected loss" impairment model that ~~amends~~applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables and other financial assets. Entities are required to estimate expected credit losses over the ~~hedge accounting recognition~~life of financial assets and ~~presentation requirements under hedge accounting. The new standard will make more financial and nonfinancial hedging strategies eligible for hedge accounting, amends~~record an allowance against the ~~presentation and disclosure requirements, and simplifies how companies assess effectiveness.~~assets’ amortized cost basis to present them at the amount expected to be collected. The Company adopted ~~the~~this standard on October 1, ~~2017.~~2020. The adoption of this standard did not materially impact the Company’s consolidated financial statements.

In ~~May 2014,~~March 2020, the FASB issued a new standard ~~that amends~~on Reference Rate Reform, which provides temporary optional expedients and exceptions to the existing guidance on contract modifications and hedge accounting ~~standards for revenue recognition.~~to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates. The standard ~~requires entities~~was effective upon issuance and may generally be applied through December 31, 2022 to ~~recognize revenue when they transfer promised goods~~any new or ~~services~~amended contracts, hedging relationships, and other transactions that reference LIBOR. The Company is currently evaluating the timing of adoption and the impact of the adoption of this standard on its consolidated financial statements.

In December 2019, the FASB issued a new standard Simplifying the Accounting for Income Taxes. The new guidance simplifies the accounting for income taxes by removing several exceptions in the current standard and adding guidance to ~~customers~~reduce complexity in ~~an amount that reflects the consideration the entity expects to be entitled to in exchange for those goods or services. This~~certain areas. The new standard is ~~applicable~~effective for fiscal years beginning after December 15, 2017. The Company has completed its preliminary assessment of the new standard, which included reviewing a sample of contracts across the Company’s four business segments. Based on this assessment, the Company does not expect adoption of this standard to have a material impact on how it recognizes revenue. The Company is continuing its assessment of the new standard and preparing to implement the updates that will be necessary to its revenue recognition policy, internal controls, processes and financial statement disclosures. The Company will adopt this standard on October 1, 2018 and expects to apply a modified retrospective approach.

In February 2016, the FASB issued a new standard for the accounting for leases. This new standard requires lessees to recognize assets and liabilities for most leases, but recognize expenses on their income statements in a manner that is similar to the current accounting treatment for leases. The standard is applicable for fiscal years beginning after December 15, 2018 and for interim periods within those years,2020 and early adoption is permitted. The Company expects to adopt the standard on October 1, ~~2019.~~2021. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements.

In August 2016, the FASB issued final amendments to clarify how entities should classify certain cash receipts and cash payments on the statement of cash flows, such as distributions received from equity method investees, proceeds from the settlement of insurance claims, and proceeds from the settlement of corporate-owned life insurance policies. The new standard is effective for fiscal years beginning after December 15, 2017, including interim periods within those years, and early adoption is permitted. The Company is evaluating this standard and the timing of its adoption. The adoption of this standard is not expected to materially impact the Company’s consolidated financial statements.

In March 2017, the FASB issued a new standard that amends the requirements on the presentation of net periodic pension and postretirement benefit cost. Currently, net benefit costs are reported as employee costs within operating income. The new standard requires the service cost component to be presented with other employee compensation costs. The other components will be reported separately outside of operations. The new standard is effective for fiscal years beginning after December 15, 2017. The Company will adopt this standard on October 1, 2018. The adoption of this standard is not expected to materially impact the Company’s consolidated financial statements.

On April 1, 2020, the Company ~~acquired all of the issued and outstanding shares and cash of Tech Blend,~~purchased Shenzhen Sanshun Nano New Materials Co., Ltd (SUSN), a ~~North American~~leading carbon nanotube producer, ~~of black masterbatches,~~ for ~~a preliminary~~an estimated purchase price of ~~$65~~$100 million, consisting of: (i) cash consideration of $84 million, net of $1 million acquired, (ii) contingent consideration of up to $3 million to be paid over the two-year period ending March 31, 2022 upon the satisfaction of certain milestones, and (iii) assumed debt of $13 million. The debt the Company assumed in ~~cash. The preliminary purchase price is subject to a working capital adjustment, which has not been finalized.~~the transaction was repaid in June 2020. The operating results of ~~the business~~SUSN are included in the ~~Company’s~~results of the Company's Performance Chemicals segment. The acquisition extends the Company’s global footprint in black masterbatch and compounds and provides a platform to serve global customers and grow in conductive formulations. Since the acquisition, Tech Blend revenues totaled approximately $4 millionsegment beginning in the ~~two month period ended December 31, 2017.~~

~~The Company incurred acquisition costs~~third quarter of ~~less than $1 million through December 31, 2017 associated with the transaction, which are included in Selling and administrative expenses in the Consolidated Statements of Operations.~~fiscal 2020.

The allocation of the preliminary purchase price set forth below was based on preliminary estimates of the fair value of assets acquired and liabilities assumed. The Company is continuing to obtain information to complete its valuation of these accounts and the associated tax accounting.

As part of the preliminary purchase price allocation, the Company determined the separately identifiable intangible assets are comprised of developed technologies of $21 million, which will be amortized over 25 years, trademarks of $2 million, which will be amortized over 10 years, and customer relationships of $8 million, which will be amortized over 12 years. The Company estimated the fair values of the identifiable acquisition-related intangible assets based on projections of cash flows that will arise from those assets. The projected cash flows are discounted to determine the fair value of the assets at the date of acquisition. The determination of the fair value of the intangible assets acquired required the use of significant judgment with regard to (i) assumptions in the discounted cash flow model used and (ii) determination of the useful lives of the developed technologies, trademarks, and customer relationships.

The excess of the preliminary purchase price over the fair value of the tangible net assets and intangible assets acquired was recorded as goodwill. The goodwill recognized is attributable to the growth and operating synergies that the Company expects to realize from this acquisition. Goodwill generated from the acquisition will not be deductible for tax purposes.

Net periodic defined benefit pension ~~and other postretirement benefit~~ costs include the following:

	Three Months Ended December 31																					Three Months Ended June 30
	2017						2016						2017					2016				2021					2020
	Pension Benefits												Postretirement Benefits									Pension Benefits
	U.S.			Foreign			U.S.			Foreign			U.S.			Foreign		U.S.		Foreign		U.S.		Foreign			U.S.			Foreign
	(In millions)																					(In millions)
Service cost	$	—		$	2		$	—		$	2		$	—		$	—	$	—	$	—	$	—	$	1		$	—		$	1
Interest cost		1			2			1			1			—			—		—		—		—		—			1			1
Expected return on plan assets		(2	)		(4	)		(3	)		(3	)		—			—		—		—		—		(2	)		(1	)		(2	)
Amortization of prior service credit		—			—			—			—			(1	)		—		—		—
Amortization of prior service cost																							—		2			—			—
Amortization of actuarial loss		—			1			—			1			—			—		—		—		—		1			—			1
Settlement charge																							—		1			—			—
Net periodic benefit (credit) cost	$	(1	)	$	1		$	(2	)	$	1		$	(1	)	$	—	$	—	$	—	$	—	$	3		$	—		$	1

Other postretirement benefit costs were less than $1 million and $1 million for the three and nine months ended June 30, 2021, respectively. Other postretirement benefit costs were less than $1 million and $1 million for the three and nine months ended June 30, 2020, respectively.

In fiscal 2019, the Company’s Board of Directors approved a resolution to terminate the Company’s U.S. pension plan. In fiscal 2020 and 2021, the pension liability was settled through a combination of lump-sum payments and purchased annuities, neither of which required an additional cash contribution to the plan. In the fourth quarter of fiscal 2020, the Company recognized a settlement charge of $3 million related to lump-sum payments made to participants who elected this option, which was recorded in Other income (expense) in the Consolidated Statements of Operations. In the first quarter of fiscal 2021, the Company recognized an additional $6 million settlement charge in Other income (expense) related to the final asset transfers through purchased annuities.

The carrying amount of goodwill attributable to each reportable segment with goodwill balances and the changes in those balances during the ~~three month period~~nine months ended ~~December 31, 2017~~June 30, 2021 are as follows:

The following table provides information regarding the Company’s intangible assets:

	December 31, 2017							September 30, 2017							June 30, 2021							September 30, 2020
	Gross Carrying Value		Accumulated Amortization			Net Intangible Assets		Gross Carrying Value		Accumulated Amortization			Net Intangible Assets		Gross Carrying Value		Accumulated Amortization			Net Intangible Assets		Gross Carrying Value		Accumulated Amortization			Net Intangible Assets
	(In millions)														(In millions)
Intangible assets with finite lives
Developed technologies⁽¹⁾	$	72	$	(7	)	$	65	$	49	$	(7	)	$	42	$	63	$	(11	)	$	52	$	60	$	(8	)	$	52
Trademarks⁽¹⁾		18		(2	)		16		16		(1	)		15		11		(1	)		10		11		(1	)		10
Customer relationships⁽¹⁾		98		(15	)		83		94		(14	)		80		61		(20	)		41		56		(15	)		41
Total intangible assets	$	188	$	(24	)	$	164	$	159	$	(22	)	$	137	$	135	$	(32	)	$	103	$	127	$	(24	)	$	103

Intangible assets are amortized over their estimated useful lives, which range between ten and twenty-five years, with a weighted average amortization period of approximately ~~nineteen~~eighteen years. Amortization expense for ~~both~~each of the three ~~month periods~~months ended ~~December 31, 2017~~June 30, 2021 and ~~2016~~2020 was $2 million and is included in Cost of sales, ~~and~~ Selling and administrative expenses and Research and technical expenses in the Consolidated Statements of Operations. Amortization expense for the nine months ended June 30, 2021 and 2020 was $6 million and $5 million, respectively, and is included in Cost of sales, Selling and administrative expenses and Research and technical expenses in the Consolidated Statements of Operations. Total amortization expense is estimated to be approximately ~~$10~~$8 million each year for the next five fiscal years.

In January 2015, the Board of Directors authorized Cabot to repurchase up to five million shares of its common stock in the open market or in privately negotiated transactions. As of December 31, 2017, under the current authorization, Cabot has repurchased 3,491,902 shares of its common stock and 1,508,098 shares remain available for repurchase. The Company retired the repurchased shares and recorded the excess of the purchase price over par value to additional paid-in capital until such amount was reduced to zero and then charged the remainder against retained earnings.

During the first three months of fiscal 2018 and 2017, Cabot paid cash dividends in the amount of $0.315 and $0.30, respectively, per share of common stock, with a total cost of $20 million and $19 million, respectively.

~~The following table illustrates the noncontrolling interest activity for the periods presented:~~

None of the dividends declared to noncontrolling interests during the three months ended December 31, 2017 were paid during the period. All of the dividends declared to noncontrolling interests during the three months ended December 31, 2016 were paid later in the fiscal year.

Comprehensive income combines net income (loss) and other comprehensive income items, which are reported as components of stockholders’ equity in the accompanying Consolidated Balance Sheets.

	Currency Translation Adjustment			Unrealized Gains on Investments		Pension and Other Postretirement Benefit Liability Adjustments			Total			Currency Translation Adjustment			Pension and Other Postretirement Benefit Liability Adjustments			Total
	(In millions)											(In millions)
Balance at September 30, 2017, attributable to Cabot Corporation	$	(204	)	$	2	$	(57	)	$	(259	)
Balance at September 30, 2020, attributable to Cabot Corporation												$	(307	)	$	(44	)	$	(351	)
Other comprehensive income (loss) before reclassifications		—			—		—			—			94			(1	)		93
Amounts reclassified from AOCI		(1	)		—		—			(1	)		(1	)		4			3
Less: Other comprehensive income (loss) attributable to noncontrolling interests		3			—		—			3			7			—			7
Balance at December 31, 2017, attributable to Cabot Corporation	$	(208	)	$	2	$	(57	)	$	(263	)
Balance at December 31, 2020, attributable to Cabot Corporation													(221	)		(41	)		(262	)
Other comprehensive income (loss) before reclassifications													(76	)		1			(75	)
Amounts reclassified from AOCI													(1	)		—			(1	)
Less: Other comprehensive income (loss) attributable to noncontrolling interests													(2	)		—			(2	)
Balance at March 31, 2021, attributable to Cabot Corporation													(296	)		(40	)		(336	)
Other comprehensive income (loss) before reclassifications													71			(3	)		68
Amounts reclassified from AOCI													(1	)		5			4
Less: Other comprehensive income (loss) attributable to noncontrolling interests													3			—			3
Balance at June 30, 2021, attributable to Cabot Corporation												$	(229	)	$	(38	)	$	(267	)

The amounts reclassified out of AOCI and into the Consolidated Statements of Operations in each of the three and nine months ended ~~December 31, 2017~~June 30, 2021 and ~~2016~~2020 were as follows:

	Affected Line Item in the Consolidated	Three Months Ended December 31					Affected Line Item in the Consolidated	Three Months Ended June 30						Nine Months Ended June 30
	Statements of Operations	2017			2016		Statements of Operations	2021			2020			2021			2020
		(In millions)						(In millions)
Derivatives: net investment hedges
(Gains) losses reclassified to interest expense		$	(1	)	$	—	Interest expense (Note L)	$	(1	)	$	(2	)	$	(4	)	$	(4	)
Pension and other postretirement benefit liability adjustment
Amortization of actuarial losses	Net Periodic Benefit Cost - see Note D for details		1			1
Amortization of prior service credit	Net Periodic Benefit Cost - see Note D for details		(1	)		—
(Gains) losses excluded from effectiveness testing and amortized to interest expense							Interest expense (Note L)		—			—			1			1

Pension and other postretirement
Amortization of actuarial losses and prior service cost (credit)							Net Periodic Benefit Cost (Note D)		3			2			4			3
Settlement charge							Net Periodic Benefit Cost (Note D)		1			—			7			—
Total before tax			(1	)		1			3			—			8			—
Tax impact	Provision (benefit) for income taxes		—			—	Provision (benefit) for income taxes		1			1			(2	)		1
Total after tax		$	(1	)	$	1		$	4		$	1		$	6		$	1

Cabot has entered into long-term purchase agreements primarily for the purchase of raw materials. Under certain of these agreements, the quantity of material being purchased is fixed, but the price paid changes as market prices change. For these purchase commitments, the amounts included in the table below are based on market prices at December 31, 2017, which may differ from actual market prices at the time of purchase.

Cabot has provided certain indemnities pursuant to which it may be required to make payments to an indemnified party in connection with certain transactions and agreements. In connection with certain acquisitions and divestitures, Cabot has provided routine indemnities with respect to such matters as environmental, tax, insurance, product and employee liabilities. In connection with various other agreements, including service and supply agreements with customers, Cabot has provided indemnities for certain contingencies and routine warranties. Cabot is unable to estimate the maximum potential liability for these types of indemnities as a maximum obligation is not explicitly stated in most cases and the amounts, if any, are dependent upon the outcome of future contingent events, the nature and likelihood of which cannot be reasonably estimated. The duration of the indemnities vary, and in many cases are indefinite. Cabot has not recorded any liability for these indemnities in the consolidated financial statements, except as otherwise disclosed.

~~Cabot is a defendant, or potentially responsible party, in various lawsuits and environmental proceedings wherein substantial amounts are claimed or at issue.~~

As of both December 31, 2017 and September 30, 2017, Cabot had $12 million reserved for environmental matters. These environmental matters mainly relate to former operations. These reserves represent Cabot’s best estimates of the probable costs to be incurred at those sites where costs are reasonably estimable based on the Company’s analysis of the extent of clean up required, alternative clean-up methods available, abilities of other responsible parties to contribute and its interpretation of laws and regulations applicable to each site. Cash payments related to these environmental matters were less than $1 million in the first three months of both fiscal 2018 and fiscal 2017. Cabot reviews the adequacy of the reserves as circumstances change at individual sites and adjusts the reserves as appropriate. Almost all of Cabot’s environmental issues relate to sites that are mature and have been investigated and studied and, in many cases, are subject to agreed upon remediation plans. However, depending on the results of future testing, changes in risk assessment practices, remediation techniques and regulatory requirements, newly discovered conditions, and other factors, it is reasonably possible that the Company could incur additional costs in excess of environmental reserves currently recorded. Management estimates, based on the latest available information, that any such future environmental remediation costs that are reasonably possible to be in excess of amounts already recorded would be immaterial to the Company’s consolidated financial statements.

Cabot has exposure in connection with a safety respiratory products business that a subsidiary acquired from American Optical Corporation (“AO”) in an April 1990 asset purchase transaction. The subsidiary manufactured respirators under the AO brand and disposed of that business in July 1995. In connection with its acquisition of the business, the subsidiary agreed, in certain circumstances, to assume a portion of AO’s liabilities, including costs of legal fees together with amounts paid in settlements and judgments, allocable to AO respiratory products used prior to the 1990 purchase by the Cabot subsidiary. In exchange for the subsidiary’s assumption of certain of AO’s respirator liabilities, AO agreed to provide to the subsidiary the benefits of: (i) AO’s insurance coverage for the period prior to the 1990 acquisition and (ii) a former owner’s indemnity of AO holding it harmless from any liability allocable to AO respiratory products used prior to May 1982. As more fully described in the ~~2017~~2020 10-K, the respirator liabilities generally involve claims for personal injury, including asbestosis, silicosis and coal worker’s pneumoconiosis, allegedly resulting from the use of respirators that are alleged to have been negligently designed and/or labeled. ~~Neither Cabot, nor its past or present subsidiaries, at any time manufactured asbestos or asbestos-containing products.~~ At no time did this respiratory product line represent a significant portion of the respirator market. In addition to Cabot’s subsidiary, other parties are responsible for significant portions of the costs of these respirator liabilities (as defined in the 2020 10-K, the “Payor Group”).

As On February 28, 2020, Cabot, with certain members of ~~both December 31, 2017~~the Payor Group, entered into a settlement agreement resolving a large group of claims, including claims alleging serious injury, brought by coal workers in Kentucky and ~~September 30, 2017, there were approximately 37,000 claimants~~West Virginia represented by common legal counsel. The Company’s share of this liability was $65.2 million, and during the second quarter of fiscal 2020, Cabot recorded a charge of $50 million for this settlement, which was included in ~~pending cases asserting claims against AO~~Selling and administrative expenses in ~~connection with respiratory products.~~ the Consolidated Statements of Operations. The Company paid $32.6 million of the settlement during the third quarter of fiscal 2020 and the remaining $32.6 million in the first quarter of fiscal 2021.

Cabot has a reserve to cover its expected share of ~~liability~~liabilities for ~~existing~~pending and future respirator liability ~~claims. At December 31, 2017~~claims, which is included in Other liabilities and Accounts payable and accrued liabilities on the Consolidated Balance Sheets. The Company expects these liabilities to be incurred over a number of years. The reserve was $20 million and $24 million as of June 30, 2021 and September 30, ~~2017, the reserve was $17 million and $18 million,~~2020, respectively. ~~The Company made payments related to its respirator liability of less than $1 million and $1 million in the first three months of fiscal 2018 and fiscal 2017, respectively.~~

The Company’s current estimate of the cost of its share of ~~existing~~pending and future respirator liability claims is based on facts and circumstances existing at this ~~time.~~time, including the number and nature of the remaining claims. Developments that could affect the Company’s estimate include, but are not limited to, (i) ~~significant~~ changes in the number of pending and future claims, (ii) changes in the rate of dismissals without payment of pending claims, (iii) significant changes in the average cost of resolving claims, including potential settlements of groups of claims, (iv) significant changes in the legal costs of defending these claims, (v) changes in the nature of claims received or changes in our assessment of the viability of these claims, (vi) trial and appellate outcomes, (vii) changes in the law and procedure applicable to these claims, ~~(vii)~~(viii) the financial viability of ~~other~~the parties that contribute to the ~~settlement~~payment of respirator claims, ~~(viii)~~(ix) exhaustion or changes in the recoverability of the insurance coverage maintained by certain members of the Payor Group, or a change in the availability of ~~insurance coverage maintained by certain of the other parties that contribute to the settlement of respirator claims, or~~ the indemnity provided by a former owner of ~~the business, (ix)~~AO, (x) changes in the allocation of costs among the various parties paying legal and settlement costs, and ~~(x)~~(xi) a determination that the assumptions that were used to estimate Cabot’s share of liability are no longer reasonable. The Company cannot determine the impact of these potential developments on its current estimate of its share of liability for existing and future claims. ~~Accordingly,~~Because reserves are limited to amounts that are probable and estimable as of a relevant measurement date, and there is inherent difficulty in projecting the impact of potential developments on Cabot’s share of liability for these existing and future claims, the actual amount of these liabilities for ~~existing~~pending and future claims could be different than the reserved amount.

The Company previously filed claims with the Brazilian tax authorities challenging the calculation of certain indirect taxes related to local social contributions for the years 2012 through 2019. During the third quarter of fiscal 2021, the Brazilian Federal Supreme Court rendered a final unappealable decision that clarified the methodology companies should use in the calculation. As a result of this decision, the Company is entitled to recover credits and associated interest related to the historical periods for overpayment of these indirect taxes to be used to offset future Brazilian tax liabilities. As such, the Company recorded a $12 million benefit during the third quarter of fiscal 2021 of which $9 million, related to the credit recovery was included in Net sales and other operating revenues and $3 million, related to interest income was included in Other income (expense) in the Consolidated Statement of Operations.

The Company has various other lawsuits, claims and contingent liabilities arising in the ordinary course of its business and with respect to its divested businesses. The Company does not believe that any of these matters will have a material adverse effect on its financial position; however, litigation is inherently unpredictable. Cabot could incur judgments, enter into settlements or revise its expectations regarding the outcome of certain matters, and such developments could have a material impact on its results of operations in the period in which the amounts are accrued or its cash flows in the period in which the amounts are paid.

For the three and nine months ended ~~December 31, 2017,~~June 30, 2021, the ~~tax provision~~(Provision) benefit for income taxes included a net discrete tax expense of ~~$188~~$1 million ~~of which $185~~and $2 million, ~~comprised the impact of the enactment of H.R. 1 (the “Act”), commonly referred to as the Tax Cuts and Jobs Act of 2017.~~respectively. For the three and nine months ended ~~December 31, 2016,~~June 30, 2020, the ~~tax provision~~(Provision) benefit for income taxes included a net discrete tax benefit of ~~less than $1~~$2 million ~~primarily~~and $14 million, respectively. The $14 million benefit was comprised of ~~a benefit from releases of reserves for~~$8 million related to changes in uncertain tax positions ~~partially offset by a net charge from excludible foreign exchange gains~~ and ~~losses.~~

On December 22, 2017, the U.S. enacted significant changes to federal income tax law affecting the Company, including a permanent reduction of the U.S. corporate income tax rate from 35% to 21%, effective January 1, 2018. Cabot expects that these changes will positively impact the Company's future after-tax earnings in the U.S., primarily due to the lower federal statutory tax rate and the establishment of a full participation exemption regime for foreign earnings. In transitioning to this new full participation exemption regime for foreign earnings, Cabot is subject to a one-time tax for the deemed repatriation of certain foreign earnings. A discussion of certain provisions of the Act and the Company’s preliminary assessment of the impact of such provisions on its consolidated financial statements is set forth below.

The accounting standard for income taxes (“ASC 740”) requires the Company to recognize the effect of the tax law changes under the Act in the first quarter of fiscal 2018. However, due to the potential uncertainty or diversity of views in accounting for the impact of the Act, the Securities and Exchange Commission staff issued Staff Accounting Bulletin 118 (“SAB 118”) to address the application of U.S. GAAP in situations where a registrant 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 Act.

In particular, SAB 118 clarifies that the impact of the Act must be accounted for and reported in one of three ways: (1) by reflecting the tax effects of the Act for which the accounting is complete; (2) by reporting provisional amounts for those specific income tax effects of the Act for which the accounting is incomplete but a reasonable estimate can be determined, with such provisional amounts (or adjustments to provisional amounts) identified in the measurement period, as defined therein, being included as an adjustment to tax expense or benefit from continuing operations in the period the amounts are determined; or (3) where the income tax effects cannot be reasonably estimated, no provisional amounts should be reported and the registrant should continue to apply ASC 740 based on the provisions of the tax laws that were in effect immediately prior to the enactment of the Act. The measurement period begins in the reporting period that includes the Act’s enactment date and ends when the accounting has been completed, but not beyond one year from the enactment date.

Due to various uncertainties as described below, the Company has not completed its accounting for certain tax impacts of the Act. However, as provided in SAB 118, reasonable estimates have been made and recorded as provisional amounts in its financial results for the first quarter of fiscal 2018. A discussion of the material impacts of tax law changes under the Act for which the accounting is incomplete follows:

As of December 31, 2017, the accounting for this item was incomplete. Additional information is necessary in order to complete the accounting for this item, including: (1) further analysis regarding the impact of the reduced rate on the reversal of deferred tax assets and liabilities for the full fiscal 2018 at the pro-rata rate, and (2) the true-up of deferred tax assets and liabilities upon the filing of the U.S. income tax return for fiscal 2017. However, a provisional tax expense of $13$6 million ~~has been recorded in the first quarter of fiscal 2018~~ related to the impact of ~~the rate change on deferred~~ tax ~~balances.~~

~~As of December 31, 2017, the accounting for this item is incomplete. Significant additional information will need to be obtained and analyzed~~reform legislation in ~~order to complete the accounting for this item. This includes: (1) the determination of the full fiscal 2018 E&P and~~a foreign jurisdiction.

Income tax credits of the specified foreign corporations; (2) the true-up of the pre-fiscal 2018 E&P and foreign tax credits of the specified foreign corporations upon the filing of the U.S. income tax return for fiscal 2017 (tax year 2016); (3) establishing the appropriate foreign exchange rate for the full fiscal year 2018 used to translate foreign taxes; (4) clarification of the state income tax impact of the repatriation, including guidance from states in which Cabot has a taxable presence on the extent to which the state will conform with the provisions of the Act, as well as determination of the apportionment of the Company’s income for the full fiscal year 2018; (5) uncertainty as to which of the alternative aggregate cash position measurement dates will apply to the Company; and (6) further guidance from the U.S. Treasury Department on the interpretation and application of the rules.

In the absence of such additional information, Cabot has made a reasonable estimate of the financial impact of this item. The Company has recorded a provisional charge of $149 million during the first quarter of fiscal 2018 to the (Provision) benefit for income taxes for deemed repatriation. This amount is expected to be a fully non-cash charge due to the Company’s existing tax attributes.

As of December 31, 2017, the accounting for this item is incomplete. Additional information necessary to complete the accounting includes: (1) finalization of U.S. previously taxed income resulting from the deemed repatriation of foreign earnings; (2) further analysis of the amount of distributable reserves, including treatment thereof under local law, available in various non-U.S. subsidiaries; (3) clarification of the state income tax impact of unremitted earnings that are not indefinitely reinvested; and (4) evolving interpretations of the U.S. GAAP rules applicable to the Act. As a result of the Act, the Company has made certain changes to its indefinite reinvestment assertion and has made a reasonable estimate of the financial impact of this item. The Company has recorded a provisional amount of $23 million during the first quarter of fiscal 2018 to its tax expense for this item.Interim Periods

The Company ~~will continue~~records its tax provision or benefit on an interim basis using an estimated annual effective tax rate. This rate is applied to ~~evaluate~~ the ~~impact of the Act on its business and consolidated financial statements and will make any adjustments~~current period ordinary income or loss to ~~its provisional amounts in subsequent reporting periods upon obtaining, preparing or analyzing additional information affecting~~determine the income tax provision or benefit allocated to the interim period. The income tax effects ~~initially reported as~~of unusual or infrequent items are excluded from the estimated annual effective tax rate and are recognized in the impacted interim period. Losses from jurisdictions for which no benefit can be recognized are excluded from the overall computations of the estimated annual effective tax rate and a ~~provisional amount.~~separate estimated annual effective tax rate is computed and applied to ordinary income or loss in the loss jurisdiction.

~~Accounting~~Valuation allowances are provided against the future tax benefits that arise from the deferred tax assets in jurisdictions for ~~the Global Intangible Low-Taxed Income Tax~~

~~Under the Act, Cabot~~which no benefit can be recognized. The estimated annual effective tax rate may be ~~subject~~significantly impacted by nondeductible expenses and the Company’s projected earnings mix by tax jurisdiction. Adjustments to athe estimated annual effective income tax on global intangible low-taxed income (“GILTI”) in future years. In general, GILTI is a 10.5% tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. This tax is effective for taxable years beginning after December 31, 2017. The Company has not yet adopted an accounting policy with respect to whether (i) to recognize deferred taxes for temporary differences (including outside basis differences) expected to reverse as GILTI or (ii) to recognize these temporary differences as period costs if and when incurred.

~~The Act also contains a number of other provisions that may have a material financial impact on the Company~~rate are recognized in the future. These include base erosion anti-abuse tax, foreign derived intangible income and the interest expense limitation under Internal Revenue Code section 163(j). These tax law changes apply only to tax years beginning after December 31, 2017. Therefore, the Company has not and will not record any amounts related to these items in its fiscal 2018 financial results.period when such estimates are revised.

~~Cabot~~Cabot and certain subsidiaries are under audit in a number of jurisdictions. In addition, certain statutes of limitations are scheduled to expire in the near future. It is reasonably possible that a ~~further~~ change in the unrecognized tax benefits may also occur within the next twelve months related to the settlement of one or more of these audits or the lapse of applicable statutes of limitations. However, an estimated range of the impact on the unrecognized tax benefits cannot be quantified at this time.

Cabot files U.S. federal and state and non-U.S. income tax returns in jurisdictions with varying statutes of limitations. The ~~2013~~2017 through ~~2015~~2019 tax years generally remain subject to examination by the ~~United States Internal Revenue Service~~IRS and various tax years from 2005 through ~~2015~~2019 remain subject to examination by the respective state tax authorities. In significant non-U.S. jurisdictions, various tax years from ~~2002~~2003 through ~~2016~~2020 remain subject to examination by their respective tax authorities. ~~As of December 31, 2017, Cabot’s significant non-U.S. jurisdictions include Canada, China, France, Germany, Italy, Japan, and the Netherlands.~~

During the three and nine months ended ~~December 31, 2017 and 2016,~~June 30, 2021, Cabot released uncertain tax positions of ~~$1 million~~a nil amount and $2$1 million, respectively, due to the ~~expirations~~expiration of statutes of limitations in various jurisdictions. During the three and nine months ended June 30, 2020, Cabot released uncertain tax positions of $3 million and $11 million, respectively, due to audit settlements and the expiration of statutes of limitations in various jurisdictions.

The following tables summarize the components of the basic and diluted earnings (loss) per common share (“EPS”) computations:

	Three Months Ended December 31					Three Months Ended June 30					Nine Months Ended June 30
	2017			2016		2021		2020			2021		2020
	(In millions, except per share amounts)					(In millions, except per share amounts)
Basic EPS:
Net income (loss) attributable to Cabot Corporation	$	(122	)	$	55	$	86	$	(6	)	$	221	$	34
Less: Dividends and dividend equivalents to participating securities							1		—			1		—
Less: Undistributed earnings allocated to participating securities⁽¹⁾							1		—			2		—
Earnings (loss) allocated to common shareholders (numerator)	$	(122	)	$	55	$	84	$	(6	)	$	218	$	34

Weighted average common shares and participating securities outstanding		62.6			62.7		57.5		57.2			57.4		57.4
Less: Participating securities⁽¹⁾		0.7			0.5		0.8		0.7			0.7		0.7
Adjusted weighted average common shares (denominator)		61.9			62.2		56.7		56.5			56.7		56.7

Earnings (loss) per common share - basic:	$	(1.98	)	$	0.87	$	1.48	$	(0.12	)	$	3.85	$	0.59

Diluted EPS:
Earnings (loss) allocated to common shareholders						$	84	$	(6	)	$	218	$	34
Plus: Earnings allocated to participating securities							1		—			2		—
Less: Adjusted earnings allocated to participating securities⁽²⁾							1		—			2		—
Earnings (loss) allocated to common shareholders (numerator)	$	(122	)	$	55	$	84	$	(6	)	$	218	$	34

Adjusted weighted average common shares outstanding		61.9			62.2		56.7		56.5			56.7		56.7
Effect of dilutive securities:
Common shares issuable⁽³⁾		—			0.6		0.3		—			0.1		—
Adjusted weighted average common shares (denominator)		61.9			62.8		57.0		56.5			56.8		56.7

Earnings (loss) per common share - diluted:	$	(1.98	)	$	0.86	$	1.48	$	(0.12	)	$	3.84	$	0.59

Undistributed earnings are the earnings which remain after dividends declared during the period are assumed to be distributed to the common and participating shareholders. Undistributed earnings are allocated to common and participating shareholders on the same basis as dividend distributions. The calculation of undistributed earnings is as follows:

	Three Months Ended December 31					Three Months Ended June 30					Nine Months Ended June 30
	2017			2016		2021		2020			2021		2020
	(In millions)					(In millions)
Calculation of undistributed earnings (loss):
Net income (loss) attributable to Cabot Corporation	$	(122	)	$	55	$	86	$	(6	)	$	221	$	34
Less: Dividends declared on common stock		20			19		20		20			60		60
Less: Dividends declared on participating securities							1		—			1		—
Undistributed earnings (loss)	$	(142	)	$	36	$	65	$	(26	)	$	160	$	(26	)

Allocation of undistributed earnings (loss):
Undistributed earnings (loss) allocated to common shareholders	$	(142	)	$	36	$	64	$	(26	)	$	158	$	(26	)
Undistributed earnings allocated to participating shareholders							1		—			2		—
Undistributed earnings (loss)	$	(142	)	$	36	$	65	$	(26	)	$	160	$	(26	)

~~Cabot~~Cabot’s restructuring activities were recorded ~~charges of approximately $1 million and a net benefit of less than $1 million related to restructuring activity~~ in ~~Cost of sales in its~~the Consolidated Statements of Operations ~~for~~in the three and nine months ended ~~December 31, 2017~~June 30,2021 and ~~2016, respectively.~~2020 as follows:

Details of all restructuring activities and the related reserves during the ~~three~~nine months ended ~~December 31, 2017~~June 30, 2021 were as follows:

Severance
and Employee
Benefits

Environmental
Remediation

Other

Total

(In millions)

Reserve at September 30, 2017

$
1

$
2

$
—

$
3

Charges

—

—

1

1

Cash paid

—

—

(1
)

(1
)
Reserve at December 31, 2017

$
1

$
2

$
—

$
3

	Severance and Employee Benefits			Environmental Remediation		Non-cash Asset Impairment			Other			Total
	(In millions)
Reserve at September 30, 2020	$	5		$	4	$	—		$	—		$	9
Charges (gain)		—			—		2			1			3
Cost charged against assets		—			—		(2	)		—			(2	)
Cash paid		(2	)		—		—			(1	)		(3	)
Reserve at December 31, 2020		3			4		—			—			7
Charges (gain)		1			—		—			—			1
Cash paid		(2	)		—		—			—			(2	)
Reserve at March 31, 2021		2			4		—			—			6
Charges (gain)		3			—		—			1			4
Cash paid		(1	)		—		—			(1	)		(2	)
Reserve at June 30, 2021	$	4		$	4	$	—		$	—		$	8

Cabot’s severance and employee benefit reserves and other closure related reserves are reflected in Accounts payable and accrued liabilities on the Company’s Consolidated Balance Sheets. Cabot’s environmental remediation reserves related to restructuring activities are reflected in Other liabilities on the Company’s Consolidated Balance Sheets.

~~In October 2017, Cabot indefinitely idled three~~During fiscal 2020 and 2021, the Company has undertaken various actions to enable the Company to perform certain activities more effectively. These actions have primarily consisted of the ~~seven production units at its activated carbon manufacturing facility in Marshall, Texas. The decision, affecting approximately 40 local employees, was driven by~~reorganization of Cabot’s leadership structure, the ~~need to better match~~creation of a Global Business Services function and other functional and operational efficiency initiatives. During the ~~business’ production capacity and cost structure with~~nine months ended June 30, 2020, the current demand for powdered activated carbon in North America. Total costs related to this plan are expected to be approximately $8 million, comprised of approximately $8 million of non-cash accelerated depreciation costs and less than $1 million of severance costs. The Company recorded charges of ~~less than $1~~$15 million ~~in the three months ended December 31, 2017, comprised mainly~~and paid cash of ~~accelerated depreciation charges. The Company anticipates charges~~$10 million related to these ~~actions~~activities. As of ~~approximately $1 million in the remainder of fiscal 2018 and approximately $7 million thereafter.~~

~~In October 2015, in response to challenging macroeconomic conditions,~~June 30, 2021, the Company ~~announced its intention to restructure its operations subject to local consultation requirements and processes in certain locations. Cabot’s plan resulted in the termination~~had recorded total charges of ~~employment for approximately 300 employees across the Company’s global locations.~~

~~Most~~$20 million, of ~~the charges and cash outlays related to this plan were~~which $17 million was recorded in fiscal ~~2016. The Company recorded pre-tax cash charges~~2020, primarily related to ~~plan of less than $1 million in the first three months of both fiscal 2018~~severance costs, and 2017, and expects to record approximately $2 million of cash charges in the remainder of fiscal 2018. The charges recorded and anticipated are comprised of severance, employee benefits and other transition costs. As of December 31, 2017, Cabot has less than $1also had $3 million of accrued severance charges in the Consolidated Balance Sheets related to these actions.

~~Additionally,~~ The Company expects to record additional restructuring charges of approximately $2 million throughout the rest of fiscal 2021 and $4 million thereafter, primarily related to severance and site demolition costs associated with the reorganization. As of June 30, 2021, the Company had paid a total of $17 million in cash, of which $13 million was paid in fiscal ~~2016 Cabot closed its carbon black manufacturing facility in Merak, Indonesia~~2020, and expects to consolidate production in Asia using the Company’s Cilegon, Indonesia and other Asian and global carbon black production sites to meet regional demand. The decision was driven by the financial performance at the Merak facility in the years preceding the closure. Manufacturing operations ceased at the end of January 2016.

~~Most of the charges and~~have future cash outlays ~~related to the Merak closure were recorded in fiscal 2016. The Company recorded a pre-tax cash benefit~~ of ~~less than~~approximately $1 million in the ~~first quarter~~remainder of fiscal ~~2017.~~

~~The Company entered into an agreement to sell the land in Merak on which the facility is located. The sale is anticipated to be completed in the second quarter of fiscal 2018 for approximately $14~~2021 and $8 million ~~resulting in a net gain of approximately $11 million. The Company received a refundable deposit of $4 million in cash~~thereafter related to the reorganization.

In December 2018, the Company initiated a transformation plan to improve the long‐term performance of the Purification Solutions segment. The purpose of the plan was to focus the business’s product portfolio, optimize its manufacturing assets, and streamline its organizational structure to support the new focus. As of June 30, 2021, the Company had recorded total charges of $15 million for this ~~transaction in the first quarter~~plan, of ~~fiscal 2018 that is~~which $11 million was recorded in ~~Accounts payable~~prior fiscal years, primarily related to severance costs, and ~~accrued liabilities on the Consolidated Balance Sheets.~~

~~As of December 31, 2017, Cabot has less than~~also had $1 million of accrued severance ~~costs~~and other charges in the Consolidated Balance Sheets related to ~~the Merak facility closure.~~

~~Cabot has recorded less than~~this plan. The Company expects to record additional restructuring charges of $1 million throughout the rest of ~~severance charges~~fiscal 2021 and $1 million thereafter primarily related to decommissioning costs associated with the business’s manufacturing facility in Marshall, Texas. As of June 30, 2021, the ~~three months ended December 31, 2017, nearly all~~Company had paid a total of $11 million in cash for this plan, of which ~~has been~~$9 million was paid in ~~the first quarter of~~prior fiscal ~~2018.~~

~~Additionally, in previous~~ years, the Company has entered into other various restructuring actions that have been substantially completed, other than the sale of assets from certain closed sites that remain to be completed. The Company has recorded a net benefit of less than $1 million in the three months ended December 31, 2016, driven by gains from the sale of certain assets related to these actions.

~~Cabot~~and expects to ~~pay~~have future cash outlays of approximately $3$2 million ~~related to these activities~~ in the remainder of fiscal ~~2018~~2021 and ~~thereafter, mainly for accrued environmental and other closure related costs. As of December 31, 2017, Cabot has approximately $2 million of accrued environmental costs and approximately~~ $1 million ~~of accrued severance costs in the Consolidated Balance Sheets~~thereafter related to ~~these actions.~~this plan.

The FASB authoritative guidance on fair value measurements defines fair value, provides a framework for measuring fair value, and requires certain disclosures about fair value measurements. The required disclosures focus on the inputs used to measure fair value. The guidance establishes the following hierarchy for categorizing these inputs:

There were no0 transfers of financial assets or liabilities measured at fair value between Level 1 and Level 2 and there were no Level 3 investments during the first ~~three~~nine months of either fiscal ~~2018~~2021 or ~~2017.~~2020.

At ~~December 31, 2017~~June 30, 2021 and September 30, ~~2017,~~2020, Cabot had derivatives relating to foreign currency risks, including a net investment hedge and forward foreign currency contracts, carried at fair value. At ~~December 31, 2017~~June 30, 2021, the fair value of these derivatives was a net asset of $4 million and was included in Prepaid expenses and other current assets, Accounts payable and accrued liabilities, and Other assets on the Consolidated Balance Sheets. At September 30, ~~2017,~~2020, the fair value of these derivatives was a net liability of ~~$18~~$1 million ~~and $13 million, respectively,~~ and was included in Prepaid expenses and other current assets and Other liabilities on the Consolidated Balance Sheets. These derivatives are classified as Level 2 instruments within the fair value hierarchy as the fair value determination was based on observable inputs.

At ~~both December 31, 2017~~each of June 30, 2021 and September 30, ~~2017,~~2020, the fair value of guaranteed investment contracts, included in Other assets on the Consolidated Balance Sheets was ~~$12~~$11 million. Guaranteed investment contracts were classified as Level 2 instruments within the fair value hierarchy as the fair value determination was based on other observable inputs.

At ~~December 31, 2017~~June 30, 2021 and September 30, ~~2017,~~2020, the fair values of cash and cash equivalents, accounts and notes receivable, accounts payable and accrued liabilities, and ~~notes payable~~short-term borrowings and variable rate debt approximated their carrying values due to the short-term nature of these instruments. The carrying value and fair value of the long-term fixed rate debt were ~~$0.91~~$1.07 billion and ~~$0.93~~$1.14 billion, respectively, as of ~~December 31, 2017~~June 30, 2021, and ~~$0.91~~$1.08 billion and ~~$0.94~~$1.18 billion, respectively, as of September 30, ~~2017.~~2020. The fair values of Cabot’s fixed rate long-term debt are estimated based on comparable quoted market prices at the respective period ends. The carrying amounts of Cabot’s floating rate long-term debt and ~~capital~~finance and operating lease obligations approximate their fair values. All such measurements are based on observable inputs and are classified as Level 2 within the fair value hierarchy. The valuation technique used is the discounted cash flow model.

Cabot’s international operations are subject to certain risks, including currency exchange rate fluctuations and government actions. Cabot endeavors to match the currency in which debt is issued to the currency of the Company’s major, stable cash receipts. In some situations, Cabot has issued debt denominated in U.S. dollars and then entered into cross-currency swaps that exchange the dollar principal and interest payments into ~~Euro denominated~~Euro-denominated principal and interest payments.

Additionally, the Company has foreign currency exposure arising from its net investments in foreign operations. Cabot may enter into cross-currency swaps to mitigate the impact of currency rate changes on the Company’s net investments.

The Company also has foreign currency exposure arising from the denomination of monetary assets and liabilities in foreign currencies other than the functional currency of a given subsidiary as well as the risk that currency fluctuations could affect the dollar value of future cash flows generated in foreign currencies. Accordingly, Cabot uses short-term forward contracts to minimize the exposure to foreign currency risk. In certain situations where the Company has forecasted purchases under a long-term commitment or forecasted sales denominated in a foreign currency, Cabot may enter into appropriate financial instruments in accordance with the Company’s risk management policy to hedge future cash flow exposures.

The following table provides details of the derivatives held as of ~~December 31, 2017~~June 30, 2021 and September 30, ~~2017~~2020 to manage foreign currency risk.

The Company determines the fair value of financial instruments using quoted market prices whenever available. When quoted market prices are not available for various types of financial instruments (such as forwards, options and swaps), the Company uses standard models with market-based inputs, which take into account the present value of estimated future cash flows and the ability of Cabot or the financial counterparty to perform. For interest rate and cross-currency swaps, the significant inputs to these models are interest rate curves for discounting future cash flows and are adjusted for credit risk. For forward foreign currency contracts, the significant inputs are interest rate curves for discounting future cash flows, and exchange rate curves of the foreign currency for translating future cash flows.

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting gain or loss on the hedged item attributable to the hedged risk are recognized in current period earnings.

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative is recorded in AOCI and reclassified to earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current period earnings.

For net investment hedges, changes in the fair value of the effective portion of the derivatives’ gains or losses are reported as foreign currency translation gains or losses in AOCI while changes in the ineffective portion are reported in earnings. Effectiveness is assessed based on the hypothetical derivative method. The gains or losses on derivative instruments reported in AOCI are reclassified to earnings in the period in which earnings are affected by the underlying item, such as a disposal or substantial liquidations of the entities being hedged. Effective October 1, 2017, the Company elected to de-designate its existing net investment hedge instruments in which hedge effectiveness was assessed using the method based on changes in forward exchange rates and re-designate the net investment hedges in which hedge effectiveness will be assessed using the method based on changes in spot exchange rates.

The Company has cross-currency swaps with a notional amount of $250 million, which are designated as hedges of its net investments in certain ~~Euro denominated~~Euro-denominated subsidiaries. Cash settlements occur semi-annually on March 15^th and September 15^th for fixed rate interest payments and a cash exchange of the notional currency amount will occur at the end of the term in 2026. As of ~~December 31, 2017,~~June 30, 2021, the fair value of these swaps was ~~a net liability~~an asset of ~~$18~~$4 million and was included in Prepaid expenses and other current assets and Other ~~liabilities~~assets and the cumulative ~~loss~~gain of ~~$15~~$7 million was included in Currency Translation Adjustment within AOCI on the Consolidated Balance Sheets. As of September 30, ~~2017,~~2020, the fair value of these swaps was a net liability of ~~$13~~$1 million and was included in Prepaid expenses and other current assets and Other Liabilities, and the cumulative ~~loss~~gain of $9$2 million was included in Currency Translation Adjustment within AOCI on the Consolidated Balance Sheets.

The following table summarizes the impact of the cross-currency swaps to AOCI and the Consolidated Statements of Operations:

From time to time, the Company may enter into certain derivative instruments that may not be designated as hedges for accounting purposes, which may include cross-currency swaps, foreign currency forward contracts and commodity derivatives. For cross-currency swaps and foreign currency forward contracts not designated as hedges, the Company uses standard models with market-based inputs. The significant inputs to these models are interest rate curves for discounting future cash flows, and exchange rate curves of the foreign currency for translating future cash flows. In determining the fair value of the commodity derivatives, the significant inputs to valuation models are quoted market prices of similar instruments in active markets. Although these derivatives do not qualify for hedge accounting, Cabot believes that such instruments are closely correlated with the underlying exposure, thus managing the associated risk. The gains or losses from changes in the fair value of derivative instruments that are not accounted for as hedges are recognized in current period earnings.

At both December 31, 2017 and September 30, 2017, the fair value of derivative instruments not designated as hedges were immaterial and were presented in Prepaid expenses and other current assets and Accounts payable and accrued liabilities on the Consolidated Balance Sheets.

Cabot owns 49% of a carbon black operating affiliate in Venezuela, which is accounted for as an equity affiliate, through wholly-owned subsidiaries that carry the investment and receive its dividends. As of December 31, 2017, these subsidiaries carried the operating affiliate investment of $14 million.

~~During the three months ended December 31, 2017 and 2016, the Company received dividends in the amounts of $2 million and $1 million, respectively, which were paid in U.S. dollars.~~

A significant portion of the Company’s operating affiliate’s sales are exports denominated in U.S. dollars. The Venezuelan government mandates that a certain percentage of the dollars collected from these sales be converted into bolivars. The exchange rate made available to the Company as of December 31, 2017 was 3,345 bolivars to the U.S. dollar, which was unchanged from the exchange rate available to the Company as of September 30, 2017.

The operating entity has generally been profitable. The Company continues to closely monitor developments in Venezuela and their potential impact on the recoverability of its equity affiliate investment. Any future change in the exchange rate made available to the Company could cause the Company to change the exchange rate it uses and result in gains or losses on the bolivar denominated assets held by its operating affiliate and wholly-owned subsidiaries.

The Company identifies a business as an operating segment if: (i) it engages in business activities from which it may earn revenues and incur expenses; (ii) its operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is Cabot’s President and Chief Executive Officer, to make decisions about resources to be allocated to the segment and assess its performance; and (iii) it has available discrete financial information. The Company has determined that all of its businesses are operating segments. The CODM reviews financial information at the operating segment level to allocate resources and to assess the operating results and financial performance for each operating segment. Operating segments are aggregated into a reportable segment if the operating segments are determined to have similar economic characteristics and if the operating segments are similar in the following areas: (i) nature of products and services; (ii) nature of production processes; (iii) type or class of customer for their products and services; (iv) methods used to distribute the products or provide services; and (v) if applicable, the nature of the regulatory environment.

The Company has ~~four~~3 reportable segments: Reinforcement Materials, Performance Chemicals, and Purification ~~Solutions and Specialty Fluids.~~Solutions.

The Reinforcement Materials segment ~~represents~~consists of the rubber blacks and elastomer composites product lines.

The Performance Chemicals segment combines the specialty carbons, ~~and compounds and inkjet colorants product lines into the Specialty Carbons and Formulations business, and combines the~~ fumed metal oxides and aerogel product lines into the ~~Metal Oxides~~Performance Additives business, and combines the specialty compounds and inkjet colorants product lines into the Formulated Solutions business. These businesses are similar in terms of economic characteristics, nature of products, processes, customer class and product distribution methods, and, therefore, have been aggregated into ~~one~~1 reportable segment. The net sales from each of these businesses for the three and nine months ended ~~December 31, 2017~~June 30, 2021 and ~~2016~~2020 were as follows:

The Purification Solutions segment ~~represents~~consists of the Company’s activated carbon ~~business and the Specialty Fluids segment includes cesium formate oil and gas drilling fluids and high-purity fine cesium chemicals product lines.~~business.

Income (loss) ~~from continuing operations~~ before income taxes (“Segment EBIT”) is presented for each reportable segment in the table below. Segment EBIT excludes Interest expense, general unallocated income (expense), unallocated corporate costs, and certain items, meaning items management does not consider representative of on-going operating segment results. In addition, Segment EBIT includes Equity in earnings of affiliated companies, net of tax, the full operating results of a contractual joint venture in Purification Solutions, royalties, Net income attributable to noncontrolling interests, net of tax, and discounting charges for certain Notes receivable, but excludes Interest expense, foreign currency transaction gains and losses, interest income, dividend income, unearned revenue, general unallocated expense and unallocated corporate costs.receivable.

Reinforcement
Materials

Performance
Chemicals

Purification
Solutions

Specialty
Fluids

Segment
Total

Unallocated
and Other⁽¹⁾

Consolidated
Total

(In millions)

Three Months Ended December 31, 2017

Revenues from external customers⁽²⁾

$
387

$
229

$
70

$
6

$
692

$
28

$
720

Income (loss) from continuing operations
before income taxes⁽³⁾

$
62

$
47

$
6

$
(2
)

$
113

$
(21
)

$
92

Three Months Ended December 31, 2016

Revenues from external customers⁽²⁾

$
295

$
205

$
69

$
11

$
580

$
31

$
611

Income (loss) from continuing operations
before income taxes⁽³⁾

$
40

$
49

$
4

$
2

$
95

$
(20
)

$
75

	Reinforcement Materials			Performance Chemicals		Purification Solutions		Segment Total		Unallocated and Other⁽¹⁾			Consolidated Total
	(In millions)
Three Months Ended June 30, 2021
Revenues from external customers⁽²⁾	$	479		$	303	$	69	$	851	$	66		$	917
Income (loss) before income taxes⁽³⁾	$	85		$	54	$	6	$	145	$	(22	)	$	123

Three Months Ended June 30, 2020
Revenues from external customers⁽²⁾	$	197		$	220	$	63	$	480	$	38		$	518
Income (loss) before income taxes⁽³⁾	$	(5	)	$	21	$	2	$	18	$	(29	)	$	(11	)

Nine Months Ended June 30, 2021
Revenues from external customers⁽²⁾	$	1,288		$	864	$	191	$	2,343	$	162		$	2,505
Income (loss) before income taxes⁽³⁾	$	262		$	166	$	6	$	434	$	(94	)	$	340

Nine Months Ended June 30, 2020
Revenues from external customers⁽²⁾	$	931		$	707	$	186	$	1,824	$	131		$	1,955
Income (loss) before income taxes⁽³⁾	$	103		$	93	$	3	$	199	$	(148	)	$	51

	Three Months Ended December 31						Three Months Ended June 30						Nine Months Ended June 30
	2017			2016			2021			2020			2021			2020
	(In millions)						(In millions)
Interest expense	$	(13	)	$	(13	)	$	(12	)	$	(13	)	$	(37	)	$	(41	)
Certain items ^(a)
Global restructuring activities		(1	)		—
Indirect tax settlement credits (Note G)								12			—			12			3
Global restructuring activities (Note J)								(4	)		(3	)		(8	)		(16	)
Employee benefit plan settlement and other charges (Note D)								(1	)		(2	)		(6	)		(5	)
Acquisition and integration-related charges								(2	)		(1	)		(4	)		(3	)
Legal and environmental matters and reserves		(1	)		—			—			(1	)		—			(51	)
Gains (losses) on sale of investments		10			—
Specialty Fluids loss on sale and asset impairment charges								—			—			—			(1	)
Other		(1	)		—			—			—			(1	)		(1	)
Total certain items, pre-tax		7			—			5			(7	)		(7	)		(74	)
Unallocated corporate costs^(b)		(14	)		(12	)		(14	)		(10	)		(43	)		(32	)
General unallocated income (expense)^(c)		—			7			1			2			(4	)		1
Less: Equity in earnings of affiliated companies, net of tax^(d)		1			2			2			1			3			2
Total	$	(21	)	$	(20	)	$	(22	)	$	(29	)	$	(94	)	$	(148	)

The Company’s segments operate globally. In addition to presenting Revenue from external customers by reportable segment, the following tables further disaggregate Revenues from external customers by geographic region.

In July 2021, the Company’s Specialty Compounds manufacturing and research and development facility in Pepinster, Belgium experienced significant flooding. The Company continues to assess the impact of the flooding on ongoing operations at the plant and is working with its insurance carriers to assess the amount of damage to equipment and inventory. It is anticipated that the plant will not be able to produce product for at least the remainder of fiscal year 2021. The Company currently estimates that a charge for the damages will be in a range of $10 million to $15 million. The Company anticipates that it may be able to recover a substantial portion of the losses from insurance proceeds, however, the amount and timing of any insurance recovery is not certain at this time.

Effective August 6, 2021, the Company entered into a new corporate revolving credit agreement (the “2021 Credit Agreement”), and terminated its existing corporate revolving credit agreement, which was scheduled to mature on October 23, 2022. The borrowing capacity under the 2021 Credit Agreement, which matures on August 6, 2026, subject to 2 one-year options to extend the maturity, exercisable prior to the first and second anniversaries of the effective date of the 2021 Credit Agreement, is $1 billion. The 2021 Credit Agreement supports the Company’s issuance of commercial paper, and borrowings under it may be used for working capital, letters of credit and other general corporate purposes. The Credit Agreement contains affirmative and negative covenants, a financial leverage test requiring the ratio of net debt (with the ability to offset such debt by the lesser of (i) unrestricted cash and cash equivalents and (ii) $150 million) to consolidated EBITDA not to exceed 3.50 to 1.00, and annual sustainability performance targets related to the Company’s reduction in its nitrogen oxide and sulfur dioxide emissions intensity, the achievement of which may adjust pricing under the Credit Agreement.

Our consolidated financial statements have been prepared in conformity with accounting policies generally accepted in the United States (“GAAP”). The preparation of our financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, and expenses and related disclosure of contingent assets and liabilities. We consider an accounting estimate to be critical to the financial statements if (i) the estimate is complex in nature or requires a high degree of judgment and (ii) different estimates and assumptions were used, the results could have a material impact on the consolidated financial statements. On an ongoing basis, we evaluate our estimates and the application of our policies. We base our estimates on historical experience, current conditions and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates. Our critical accounting policies have not substantially changed from those described in the ~~2017 Form~~2020 10-K. ~~We have updated~~

Refer to the discussion ofunder the ~~Inventory Valuation~~headings “Recently Adopted Accounting Standards” and ~~Intangible Asset and Goodwill Impairment policies included below to reflect recent events.~~

Effective October 1, 2017, we changed our method of accounting for U.S. carbon black inventories from the LIFO method to the FIFO method. Total U.S. inventories accounted for utilizing the LIFO cost flow assumption represented 7% of total worldwide inventories as of September 30, 2017 prior to this change in method. We believe the FIFO method is preferable because it: (i) conforms the accounting for U.S. carbon black inventories to the inventory valuation methodology for the majority of our other inventories; (ii) better represents how management assesses and reports on the performance of the Reinforcement Materials and Performance Chemicals operating segments that carry U.S. carbon black inventories, as the impact of accounting for this inventory on a LIFO basis has historically been excluded from segment results; (iii) better aligns the accounting for U.S. carbon black inventories with the physical flow of that inventory; and (iv) improves comparability with many of our peers. We applied this change retrospectively to all prior periods presented for which details are presented“Recent Accounting Pronouncements” in Note B of our Notes to the Consolidated Financial ~~Statements (“Note B”).~~

We periodically review inventory for both potential obsolescence and potential declines in anticipated selling prices. In this review, we make assumptions about the future demand for and market value of the inventory, and based on these assumptions estimate the amount of any obsolete, unmarketable, slow moving or overvalued inventory. We write down the value of our inventories by an amount equal to the difference between the cost of the inventory and its estimated net realizable value. Historically, such write-downs have not been material. If actual market conditions are less favorable than those projected by management at the time of the assessment, however, additional inventory write-downs may be required, which could reduce our gross profit and our earnings.

We record tangible and intangible assets acquired and liabilities assumed in business combinations under the acquisition method of accounting. Amounts paid for an acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. We use assumptions and estimates in determining the fair value of assets acquired and liabilities assumed in a business combination. The determination of the fair value of intangible assets requires the use of significant judgment with regard to assumptions used in the valuation model. We estimate the fair value of identifiable acquisition-related intangible assets principally based on projections of cash flows that will arise from these assets. The projected cash flows are discounted to determine the fair value of the assets at the dates of acquisition.

Definite-lived intangible assets, which are comprised of trademarks, customer relationships and developed technologies, are amortized over their estimated useful lives and are reviewed for impairment when indication of potential impairment exists, such as a significant reduction in cash flows associated with the assets. As discussed in Note C of our Notes to the Consolidated Financial Statements, we acquired Tech Blend in November 2017, and the preliminary purchase price allocation included separately identifiable intangible assets of $31 million.

Goodwill is comprised of the purchase price of business acquisitions in excess of the fair value assigned to the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but is reviewed for impairment annually as of May 31, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value. A reporting unit, for the purpose of the impairment test, is at or below the operating segment level, and constitutes a business for which discrete financial information is available and regularly reviewed by segment management. As part of the Tech Blend acquisition, goodwill of $31 million was generated and is reflected in the Specialty Compounds reporting unit. The other reporting units with goodwill balances are Reinforcement Materials, Purification Solutions, and Fumed Metal Oxides. The separate businesses included within Performance Chemicals are considered separate reporting units. As such, the goodwill balance relative to Performance Chemicals is recorded in the Fumed Metal Oxides and Specialty Compounds reporting units.

For the purpose of the goodwill impairment test, we first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. 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, an additional quantitative evaluation is performed. Alternatively, we may elect to proceed directly to the quantitative goodwill impairment test. If based on the quantitative evaluation the fair value of the reporting unit is less than its carrying amount, a goodwill impairment loss would result. The goodwill impairment loss would be the amount by which the carrying value of the reporting unit, including goodwill, exceeds its fair value, limited to the total amount of goodwill allocated to that reporting unit. The fair value of a reporting unit is based on discounted estimated future cash flows. The fair value is also benchmarked against a market approach using the guideline public companies method. The assumptions used to estimate fair value include management’s best estimates of future growth rates, operating cash flows, capital expenditures and discount rates over an estimate of the remaining operating period at the reporting unit level.

Based on our most recent annual goodwill impairment test performed as of May 31, 2017, the fair values of the Reinforcement Materials and Fumed Metal Oxides reporting units were substantially in excess of their carrying values. The fair value of the Purification Solutions reporting unit exceeded its carrying amount by 13%. The fair value of the Purification Solutions reporting unit includes certain growth assumptions that are primarily dependent on: (1) growth in demand for our existing portfolio of activated carbon products and new products developed for environmental and specialty applications; and (2) stable demand in the mercury removal related portion of the business, which is largely dependent on the amount of coal-based power generation used in the U.S. and the continued regulation of those utilities under the U.S. Mercury and Air Toxics Standards regulation (“MATS”). In April 2017, the U.S. Environmental Protection Agency (“EPA”) indicated that it intends to review the cost benefit analysis previously prepared by the EPA in support of MATS to determine if the EPA should reconsider MATS or some part of it. This analysis continues to be under review by the EPA. In addition, we continue to review our strategic options for this business and look for opportunities to better position the business for growth and long-term value enhancement. Failure to achieve our projected growth in environmental or specialty applications, actions taken by the EPA related to MATS that decrease demand for our products, or the result of the strategic options or opportunities we may pursue could have a negative impact on the fair value of the Purification Solutions reporting unit, which may lead to impairment.Statements.

Cabot is organized into ~~four~~three reportable business segments: Reinforcement Materials, Performance Chemicals, and Purification ~~Solutions and Specialty Fluids.~~Solutions. Cabot is also organized for operational purposes into three geographic regions: the Americas; Europe, Middle East and Africa; and Asia Pacific. The ~~discussions~~discussion of our results of operations for the periods presented ~~reflect~~reflects these structures.

Our analysis of our financial condition and operating results should be read with our consolidated financial statements and accompanying notes.

When discussing our results of operations, we use several terms as described below.

The term “product mix” refers to the mix of types and grades of products sold or the mix of geographic regions where products are sold, and the positive or negative impact this has on the revenue or profitability of the business and/or segment.

Our discussion under the heading ~~“Provision (Benefit)~~“(Provision) Benefit for Income Taxes and Reconciliation of Effective Tax Rate to Operating Tax Rate” includes a discussion and reconciliation of our “effective tax rate” and our “operating tax rate” ~~and includes a reconciliation~~for the periods presented, as well as management’s projection of our operating tax rate range for the ~~two rates.~~full fiscal year. Our operating tax rate is a non-GAAP financial measure and should not be considered as an alternative to our effective tax rate, the most comparable GAAP financial measure. ~~In calculating our~~The operating tax rate ~~we exclude~~is calculated based upon management's forecast of the annual operating tax rate for the fiscal year applied to adjusted pre-tax earnings. The operating tax rate excludes income tax (expense) benefit on certain items, discrete tax items which include: (i) unusual or infrequent items, such as a significant release or establishment of a valuation allowance, (ii) items related to uncertain tax positions, such as the tax impact of audit settlements, interest on tax reserves, and the release of tax reserves from the expiration of statutes of limitations, and (iii) other discrete tax items, such as the tax impact of legislative changes and, on a quarterly basis the timing of losses in certain jurisdictions. The income tax (expense) benefit on certain items is determined using the applicable rates in the taxing jurisdictions in which the certain items occurred and includes both current and deferred income tax (expense) benefit based on the ~~cumulative rate adjustment, if applicable. We also exclude~~nature of the certain items. Discrete tax items include, but are not limited to, changes in valuation allowance, uncertain tax positions, and other tax items, such as the tax impact of ~~certain items, as defined below in the discussion of Total segment EBIT, on both operating income and the tax provision.~~legislative changes. Our definition of the operating tax rate may not be comparable to the definition used by other companies. Management believes that this non-GAAP financial measure is useful supplemental information because it helps our investors compare our tax rate year to year on a consistent basis and to understand what our tax rate on current operations would be without the impact of these items.

Our discussion under the heading ~~“First~~“Third Quarter of Fiscal ~~2018~~2021 versus ~~First~~Third Quarter of Fiscal ~~2017—~~2020—By Business Segment” includes a discussion ofTotal segment EBIT, which is a non-GAAP financial measure defined as Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings from affiliated companies less certain items and other unallocated items. Our Chief Operating Decision Maker, who is our President and Chief Executive Officer, uses segment EBIT to evaluate the operating results of each segment and to allocate resources to the segments. We believe Total segment EBIT, which reflects the sum of EBIT from our ~~four~~ reportable segments, provides useful supplemental information for our investors as it is an important indicator of our operational strength and performance, allows investors to see our results through the eyes of management, and provides context for our discussion of individual business segment performance. Our definition of Total segment EBIT may not be comparable to the definition used by other companies and it should not be considered an alternative for Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies, which is the most directly comparable GAAP financial measure. A reconciliation of Total segment EBIT to Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies is provided under the heading ~~“First Quarter~~“Third quarter of Fiscal ~~2018~~2021 versus ~~First Quarter~~Third quarter of Fiscal ~~2017—~~2020—By Business Segment”. Investors should consider the limitations associated with this non-GAAP measure, including the potential lack of comparability of this measure from one company to another.

In calculating Total segment EBIT, we exclude from our Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies (i) items of expense and income that management does not consider representative of our fundamental on-going segment results, which we refer to as “certain items”, and (ii) items that, because they are not controlled by the business segments and primarily benefit corporate objectives, are not allocated to our business segments, such as interest expenseand other corporate costs, which include unallocated corporate overhead expenses such as certain corporate salaries and headquarter expenses, plus costs related to special projects and initiatives, which we refer to as “other unallocated items”. Management believes excluding the items identified as certain items facilitates operating performance comparisons from period to period by eliminating differences caused by the existence and timing of certain expense and income items that would not otherwise be apparent on a GAAP basis and also facilitates an evaluation of our operating performance without the impact of these costs or benefits. The items of income and expense that we ~~have excluded~~exclude from Total segment EBIT ~~as applicable,~~ but that are included in our GAAP Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies, as applicable in a particular reporting period, include, but are ~~described below.~~

~~During~~Our business, results of operations and cash flows in fiscal 2020 were adversely affected by the ~~first~~COVID-19 pandemic and its impact on our customers and our operations, predominately in the second and third fiscal quarters. As our customers in China began to restart operations at the end of March 2020, and in the Americas and Europe in May and June 2020, demand for our products began to improve. This recovery continued into the fourth quarter of fiscal ~~2018,~~2020. We have continued to see strengthening of demand in the first nine months of fiscal 2021 as the recovery from COVID-19 continues, and fiscal year-to-date volumes in our Reinforcement Materials segment and our Performance Chemicals segment have returned to pre-COVID levels.

Despite this improvement in demand for our products, the duration and scope of the COVID-19 pandemic continues to be uncertain. Infection rates remain high in many parts of the world, and the virulence and spread of different strains of the virus and the level and timing of COVID-19 vaccine distribution across the world will impact the economic recovery and growth and the general economic consequences of the pandemic. In addition, the COVID-19 pandemic and other factors are having a negative impact on the cost and availability of global transportation and the availability of semi-conductor chips for the automotive industry. If these global logistics challenges or the semi-conductor chip shortage persist or intensify, they could negatively impact our results, particularly in our Performance Chemicals segment. Further, the COVID-19 pandemic has also contributed to increased costs and decreased availability of labor and materials for construction projects, and these factors may increase the costs of our capital improvement projects and delay our completion of such projects.

If there is a resurgence in the COVID-19 pandemic impacting our business, it could cause us to recognize write-downs or impairments for certain assets, or a reduction in our borrowing availability under our credit agreements. These factors could also result in an adverse impact on our revenue as well as our overall profitability.

During the third quarter of fiscal 2021, Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies increased compared to the ~~first~~third quarter of fiscal ~~2017, primarily due to~~2020. The increase is driven by the increase in Total segment EBIT of $127 million. The increase in Total segment EBIT was driven by higher volumes in all segments and higher unit margins in the Reinforcement Materials ~~segment from favorable spot pricing in Asia~~ and ~~the impact from the calendar year 2017 tire customer agreements.~~Performance Chemicals segments.

~~First Quarter~~Third quarter of Fiscal ~~2018~~2021 versus ~~First Quarter~~Third quarter of Fiscal ~~2017—~~2020—Consolidated

The ~~$109~~$399 million increase in net sales and other operating revenues in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the ~~first~~third quarter of fiscal ~~2017~~2020 was driven by ~~a more~~higher volumes ($185 million), favorable price and product mix (combined ~~$80~~$152 million) ~~predominantly in Reinforcement Materials, higher volumes ($20 million)~~ and ~~the~~ favorable impact from foreign currency translation ($1335 million). across all segments. The ~~increase~~higher volumes in fiscal 2021 were driven by stronger demand across all regions as compared to lower volumes ~~was~~in fiscal 2020 primarily due to ~~volume increases~~demand declines resulting from the COVID-19 pandemic. The favorable price and product mix was driven by higher prices from higher feedstock costs that are generally passed through to our customers in the Reinforcement Materials segment and favorable price and product mix in the Performance Chemicals segment driven by higher sales into automotive applications and targeted growth initiatives and price increases to recover rising raw material and other costs.

The $550 million increase in net sales and other operating revenues in the first nine months of fiscal 2021 compared to the first nine months of fiscal 2020 was driven by higher volumes ($9318 million) in the Reinforcement Materials and Performance Chemicals ~~($16~~segments, favorable price and product mix (combined $141 million), ~~partially offset~~and favorable impact from foreign currency translation ($67 million) across all segments. The higher volumes in fiscal 2021 were driven by ~~a decrease~~stronger demand across all regions as compared to lower volumes in ~~volumes~~fiscal 2020 due to demand declines resulting from ~~Specialty Fluids ($5 million).~~the COVID-19 pandemic.The favorable price and product mix was due to improved product mix in all regions and higher prices from higher feedstock costs that are generally passed through to our customers in the Reinforcement Materials segment. Favorable price and product mix in the Performance Chemicals segment was driven by higher sales into automotive applications and targeted growth initiatives and price increases to recover rising raw material and other costs.

Gross profit increased by ~~$19~~$145 million in the third quarter of fiscal 2021 compared to the third quarter of fiscal 2020. Gross profit increased by $258 million in the first ~~quarter~~nine months of fiscal ~~2018~~2021 compared to the first ~~quarter~~nine months of fiscal ~~2017,~~2020. The gross profit increase in both comparative periods was primarily due to higher volumes and unit margins in the Reinforcement Materials and Performance Chemicals ~~and higher unit margins in Reinforcement Materials, partially offset by an unfavorable impact from changing inventory levels and higher fixed costs.~~segments.

Selling and administrative expenses increased by $6$16 million in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the same period of fiscal ~~2017,~~2020, primarily due to ~~ongoing Corporate projects~~ increased incentive compensation. Selling and ~~higher personnel costs.~~administrative expense decreased by $30 million in the first nine months of fiscal 2021 compared to the same period of fiscal 2020, primarily due to a $50 million legal settlement recorded during the second quarter of fiscal 2020. The decrease was partially offset by increased incentive compensation.

Research and technical expenses ~~increased~~decreased by $3$1 million in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the same period of fiscal ~~2017, primarily due~~2020, and remained flat in the first nine months of fiscal 2021 compared to ~~higher spending on growth projects across~~ the ~~Company.~~same period of fiscal 2020.

Interest and dividend income increased by $1 million in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the same period of fiscal ~~2017~~2020, primarily due to increased interest ~~earned on higher cash balances.~~rates. For the nine months ended June 30, 2021, Interest and dividend income decreased $1 million primarily due to lower interest rates.

Interest expense ~~was flat~~decreased $1 million and $4 million in the ~~first~~third quarter of fiscal ~~2018~~2021 and for the nine months ended June 30, 2021, respectively, as compared to the same periods of fiscal 2020, primarily due to lower interest rates and reduction in debt.

Other income (expense) changed by $2 million in the third quarter of fiscal 2021 compared to the same period inof fiscal ~~2017.~~

2020, primarily due to a favorable comparison of the impact from foreign currency translation.For the nine months ended June 30, 2021, Other income (expense) changed by $6$3 million ~~in the first quarter of fiscal 2018~~ compared to the ~~first quarter~~same period of fiscal ~~2017,~~2020. The change was primarily due to higher pension benefits in fiscal 2020 as a result of the ~~gains on sale~~termination of ~~cost-method investments, partially offset by an unfavorable comparison of foreign currency movements.~~the U.S. pension plan.

~~Provision (Benefit)~~(Provision) Benefit for Income Taxes and Reconciliation of Effective Tax Rate to Operating Tax Rate

Three Months Ended December 31

2017

2016

(Dollars in millions)

Provision (benefit) for income taxes

$
205

$
18

Effective tax rate

224
%

24
%
Impact of discrete tax items⁽¹⁾:

Unusual or infrequent items

(200
)%

(1
)%
Items related to uncertain tax positions

(1
)%

2
%
Other discrete tax items

(1
)%

(1
)%
Impact of certain items

(1
)%

—
%
Operating tax rate

21
%

24
%


Three Months Ended June 30	2021						2020
	(Provision) / Benefit for Income Taxes			Rate			(Provision) / Benefit for Income Taxes			Rate
Dollars in millions (unaudited)
Effective tax rate	$	(30	)		24	%	$	5			51	%
Less: Non-GAAP tax adjustments⁽¹⁾		2						4
Operating tax rate	$	(32	)		27	%	$	1			29	%

Nine Months Ended June 30	2021						2020
	(Provision) / Benefit for Income Taxes			Rate			(Provision) / Benefit for Income Taxes			Rate
Dollars in millions (unaudited)
Effective tax rate	$	(93	)		27	%	$	(9	)		17	%
Less: Non-GAAP tax adjustments⁽¹⁾		3						27
Operating tax rate	$	(96	)		28	%	$	(36	)		29	%

~~For fiscal 2018, our expected~~ operating tax rate ~~is reconciled~~range with an effective tax rate range because, without unreasonable effort, we are unable to ~~our expected~~predict with reasonable certainty the matters we would allocate to “certain items,” including unusual gains and losses, costs associated with future restructurings, acquisition-related expenses and litigation outcomes. These items are uncertain, depend on various factors, and could have a material impact on the effective tax rate in ~~the table below.~~future periods.

We file U.S. federal and state and non-U.S. income tax returns in jurisdictions with varying statutes of limitations. We are under audit in a number of jurisdictions. It is possible that some of these audits will be resolved in fiscal 2018 and could impact our anticipated effective tax rate. We have filed our tax returns in accordance with the tax laws, in all material respects, in each jurisdiction and maintain tax reserves for uncertain tax positions.

On December 22, 2017, the U.S. enacted significant changes to federal income tax law affecting us, including a permanent reduction of the U.S. corporate income tax rate from 35% to 21%, effective January 1, 2018. We expect that these changes will positively impact our future after-tax earnings in the U.S., primarily due to the lower federal statutory tax rate and the establishment of a full participation exemption regime for foreign earnings. In transitioning to this new full participation exemption regime for foreign earnings, we are subject to a one-time tax for the deemed repatriation of certain foreign earnings. ~~Refer to the discussion under the heading “Tax Reform” in Note I.~~

~~Equity in Earnings of Affiliated Companies and~~ Net Income (Loss) Attributable to Noncontrolling Interests

Equity in earnings of affiliated companies, net of tax, ~~decreased~~increased by $1 million in both the third quarter and first ~~quarter~~nine months of ~~fiscal 2018~~2021 compared to the same ~~period~~periods of fiscal ~~2017, primarily due to lower earnings from our Venezuelan equity affiliate.~~2020.

Net income (loss) attributable to noncontrolling interests, net of tax, increased $6by $8 million and $19 million in the ~~first~~third quarter of fiscal ~~2018~~2021 and for the nine months ended June 30, 2021, respectively, as compared to the same ~~period of~~periods in fiscal ~~2017,~~ 2020 primarily due to ~~the~~ higher profitability offrom our joint ventures in China and ~~the~~ Czech Republic.

In the third quarter and first ~~quarter~~nine months of fiscal ~~2018,~~2021, we reported ~~net~~Net income (loss) attributable to Cabot Corporation of ~~($122)~~$86 million and $221 million, or ~~($1.98)~~$1.48 per diluted common ~~share.~~share and $3.84 per diluted common share, respectively. This compares to ~~net~~Net income (loss) attributable to Cabot Corporation of ~~$55~~$(6) million and $34 million, or ~~$0.86~~$(0.12) per diluted common share and $0.59 per diluted common share, respectively, in the third quarter and first nine months of fiscal 2020. The higher net income in the third quarter of fiscal ~~2017. The net loss~~2021 and first nine months of fiscal 2021 compared with the same periods in fiscal ~~2018 is~~2020 was due to improved EBIT across all segments. In addition, the second quarter of fiscal 2020 included a ~~tax~~$50 million charge ~~recorded of $185 million in connection with the enactment of the tax Act.~~related to a legal settlement.

~~First Quarter~~Third quarter of Fiscal ~~2018~~2021 versus ~~First Quarter~~Third quarter of Fiscal ~~2017—~~2020—By Business Segment

Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies, certain items, other unallocated items, and Total segment EBIT for the three and nine months ended ~~December 31, 2017~~June 30, 2021 and ~~2016~~2020 are set forth in the table below. The details of certain items and other unallocated items are shown below and in Note OM of our Notes to the Consolidated Financial Statements.

In the ~~first~~third quarter of fiscal ~~2018,~~2021, Income (loss) ~~from continuing operations~~ before income taxes and equity in earnings of affiliated companies increased by ~~$17~~$134 million and ~~total~~Total segment EBIT increased by ~~$18 million when compared~~$127 million. The increase in Income (loss) before income taxes and equity earnings of affiliated companies was driven by increased Total segment EBIT. The increase in Total segment EBIT was driven by higher volumes and unit margins, partially offset by higher fixed costs in the Reinforcement Materials and Performance Chemicals segments. Higher volumes in the Reinforcement Materials ($56 million) and Performance Chemicals segments ($24 million) were driven by stronger demand across all regions and key end markets due to continued market recovery from the ~~same period of fiscal 2017. The increases~~declines in the prior year driven by the COVID-19 pandemic. Higher unit margins in the Reinforcement Materials segment ($57 million) were primarily driven by improved pricing in Asia. Higher unit margins in the Performance Chemicals segment ($18 million) were largely due to favorable product mix due to higher demand in automotive applications and our targeted growth initiatives.

In the first nine months of fiscal 2021, Income (loss) before income taxes and equity in earnings of affiliated companies increased by $289 million and Total segment EBIT increased by $235 million. The increase in Income (loss) before income taxes and equity earnings of affiliated companies was driven by increased Total segment EBIT and a $50 million charge in the second quarter of fiscal 2020 related to a legal settlement. The increase in Total segment EBIT was driven by higher volumes ~~($8 million), higher~~and unit margins, ~~($19 million) and a favorable impact from foreign currency translation ($1 million),~~ partially offset by ~~an unfavorable impact from changing inventory levels ($6 million) and~~ higher fixed costs in the Reinforcement Materials and Performance Chemicals segments. Higher volumes in the Reinforcement Materials ($695 million). and Performance Chemicals segments ($53 million) were driven by stronger demand across all regions due to continued market recovery from the declines in the prior year driven by the COVID-19 pandemic. Higher unit margins in the Reinforcement Materials segment ($83 million) were primarily driven by ~~a better spot~~stronger pricing ~~environment~~ in ~~Asia and~~Asia. Higher unit margins in the Performance Chemicals segment ($36 million) were largely due to favorable product mix in ~~Reinforcement Materials.~~our specialty carbons, specialty compounds, and fumed metal oxides product lines.

Details of the certain items for the third quarter and first ~~quarter~~nine months of fiscal ~~2018~~2021 and fiscal 2020 are as follows:

Three Months Ended December 31

2017

(In millions)

Global restructuring activities

$
(1
)
Legal and environmental matters and reserves

(1
)
Gains (losses) on sale of investments

10

Other

(1
)
Total certain items, pre-tax

7

Tax-related certain items:

Tax impact of certain items

(2
)
Discrete tax items

(185
)
Total tax-related certain items

(187
)
Total certain items, after tax

$
(180
)

	Three Months Ended June 30						Nine Months Ended June 30
	2021			2020			2021			2020
	(In millions)
Indirect tax settlement credits (Note G)	$	12		$	-		$	12		$	3
Global restructuring activities (Note J)		(4	)		(3	)		(8	)		(16	)
Employee benefit plan settlement and other charges (Note D)		(1	)		(2	)		(6	)		(5	)
Acquisition and integration-related charges		(2	)		(1	)		(4	)		(3	)
Legal and environmental matters and reserves		—			(1	)		—			(51	)
Specialty Fluids loss on sale and asset impairment charges		—			—			—			(1	)
Other		—			—			(1	)		(1	)
Total certain items, pre-tax		5			(7	)		(7	)		(74	)
Non-GAAP tax adjustments		2			4			3			27
Total certain items, after tax	$	7		$	(3	)	$	(4	)	$	(47	)

~~Certain items for the first quarter of fiscal 2017 included charges of less than $1 million.~~

The tax impact of certain items is determined by (1) starting with the current and deferred income tax expense or benefit included in Net income (loss) attributable to Cabot Corporation, and (2) subtracting the tax expense or benefit on “adjusted earnings”. Adjusted earnings is defined as the pre-tax income attributable to Cabot Corporation excluding certain items. The tax expense or benefit on adjusted earnings is calculated by applying the operating tax rate, as defined under the heading “Definition of Terms and Non-GAAP Financial Measures”, to adjusted earnings.

A discussion of items that we refer to as “other unallocated items” can be found under the heading “Definition of Terms and Non-GAAP Financial Measures”. The balances of unallocated corporate costs are primarily comprised of expenditures related to managing a public company that are not allocated to the segments and corporate business development costs related to ongoing corporate projects. The balances of General unallocated income (expense) consist of gains (losses) arising from foreign currency transactions, net of other foreign currency risk management activities, the profit or loss related to the corporate adjustment for unearned revenue, and the impact of including the full operating results of a contractual joint venture in Purification Solutions segment EBIT.

Total other unallocated items changed by $8 million in the first quarter of fiscal 2018 as compared to the same period in fiscal 2017, primarily due to the unfavorable impact of foreign currency translation which is included in General unallocated income (expense) and an increase in Unallocated corporate costs for corporate projects.

Sales and EBIT for Reinforcement Materials for the third quarter and first ~~quarter~~nine months of fiscal ~~2018~~2021 and ~~fiscal 2017~~2020 were as follows:

Sales in Reinforcement Materials increased by ~~$92~~$282 million in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the same period of fiscal 2020, primarily due to higher volumes ($139 million), a favorable price and product mix (combined $124 million), and a favorable impact from foreign currency translation ($18 million). The higher volumes in fiscal 2021 were driven by stronger demand across all regions as compared to lower volumes in fiscal 2020 due to demand declines resulting from the COVID-19 pandemic. The favorable price and product mix was primarily due to higher prices from higher feedstock costs that are generally passed through to our customers.

In the first nine months of fiscal 2021, sales in Reinforcement Materials increased by $357 million when compared to the first nine months of fiscal 2020. The increase was primarily due to higher volumes ($226 million), a favorable price and product mix (combined $106 million), and a favorable impact from foreign currency translation ($24 million). The higher volumes in fiscal 2021 were driven by stronger demand across all regions as compared to lower volumes in fiscal 2020 due to demand declines resulting from the COVID-19 pandemic. The favorable price and product mix was primarily due to higher prices from higher feedstock costs that are generally passed through to our customers.

EBIT in Reinforcement Materials in the third quarter of fiscal 2021 increased $90 million compared to the same period of fiscal ~~2017,~~2020. During the third quarter of fiscal 2021, the segment had higher unit margins ($57 million) and 71% higher volumes ($56 million), partially offset by higher fixed costs ($23 million). The higher volumes in fiscal 2021 were driven by stronger demand across all regions as compared to lower volumes in fiscal 2020 due to demand declines resulting from the COVID-19 pandemic. The higher unit margins were driven by significantly higher volumes across all regions, strong pricing in Asia, and improved geographic mix. The higher fixed costs were primarily due to ~~a more favorable price and product mix (combined $78~~higher maintenance costs after deferrals in the prior year.

EBIT in Reinforcement Materials increased $159 million in the first nine months of fiscal 2021 compared to the same period of fiscal 2020. The increase was driven by higher volumes ($95 million), higher ~~volumes~~unit margins ($983 million), and a favorable impact from foreign currency translation ($5 million). The favorable price and product mix impact was primarily due to higher selling prices in the quarter from price adjustments to customers for increases in raw material costs, price improvements in calendar year 2017 customer agreements and higher spot prices in Asia.

EBIT in Reinforcement Materials increased by $22 million in the first quarter of fiscal 2018 compared to the same period of fiscal 2017, primarily due to higher unit margins ($21 million), higher volumes ($4 million) and the favorable impact from foreign currency translation ($1 million),These factors were partially offset by higher fixed costs ($~~2 million) and an unfavorable impact from changing inventory levels ($2~~24 million). ~~Higher~~The higher volumes in fiscal 2021 were driven by stronger demand across all regions as compared to lower volumes in fiscal 2020 due to demand declines resulting from the COVID-19 pandemic. The higher unit margins were driven by ~~price improvements in calendar year 2017 customer agreements, a more favorable product mix, and spot~~stronger pricing in Asia. The higher fixed costs were primarily due to higher maintenance costs after deferrals in the prior year.

As we look to the fourth quarter of the fiscal year, we expect demand in the Reinforcement Materials segment to remain strong. We are also anticipating an elevated level of fixed costs as compared to the third quarter due to the timing of maintenance activities and an unplanned plant outage at our Franklin, Louisiana plant, along with higher feedstock differentials.

Sales and EBIT for Performance Chemicals for the third quarter and first ~~quarter~~nine months of fiscal ~~2018~~2021 and ~~fiscal 2017~~2020 were as follows:

Sales in Performance Chemicals increased by ~~$24~~$83 million in the ~~first~~third quarter of fiscal ~~2018~~2021 compared to the same period of fiscal ~~2017,~~2020, primarily due to ~~higher~~increased volumes ($1643 million), afavorable price and product mix (combined $27 million), and the favorable impact from foreign currency translation ($~~5 million) and a more favorable price and product mix (combined $3~~14 million). The ~~increase in~~higher volumes ~~was~~were primarily due to stronger demand across our key product lines. The favorable product mix was due to higher demand in automotive applications, as well as the execution of targeted growth initiatives across the segment.

In the first nine months of fiscal 2021, sales ~~volumes~~ in ~~Europe~~Performance Chemicals increased $157 million when compared to the same period of fiscal ~~2017.~~2020. The increase was primarily due to higher volumes ($92 million), the favorable impact from foreign currency translation ($35 million), and favorable price and product mix (combined $30 million). The higher volumes were primarily due to stronger demand across our key product lines and inventory replenishment by our customers. The favorable product mix was primarily due to higher demand in automotive applications.

EBIT in Performance Chemicals ~~decreased~~increased by $2$33 million in the third quarter of fiscal 2021 compared to the third quarter of fiscal 2020 primarily due to increased volumes ($24 million), and higher unit margins ($18 million), partially offset by higher fixed costs ($12 million). Increased volumes resulted from increased demand across key product lines. Favorable unit margins were driven by higher demand in automotive applications in our specialty carbons and specialty compounds product lines, as well as the execution of targeted growth initiatives across the segment. Increased fixed costs were driven by higher depreciation related to a new fumed metal oxides plant and higher maintenance costs after deferrals in the prior year.

EBIT in Performance Chemicals increased by $73 million in the first ~~quarter~~nine months of fiscal ~~2018~~2021 when compared to the same period of fiscal ~~2017,~~2020 primarily due to ~~higher fixed costs~~increased volumes ($653 million), ~~an unfavorable impact from changing inventory levels ($3 million) and lower~~higher unit margins ($136 million), and a favorable impact from

foreign currency translation ($7 million), partially offset by higher ~~volumes~~fixed costs ($~~7 million) and a favorable impact from foreign currency translation ($1~~23 million). Higher volumes across all product lines resulted from continuing strength in demand and inventory replenishment by our customers. Favorable unit margins were driven by higher demand in automotive applications and in targeted growth initiatives. Increased fixed costs were ~~primarily~~ driven by ~~increased spending on~~higher depreciation from the startup of our new fumed metal oxides plant, and higher maintenance ~~and selling and administrative costs. The~~costs after deferrals in the prior year.

As we look to the fourth quarter of the fiscal year, we anticipate demand in the Performance Chemicals segment to remain strong overall with some lower seasonal demand. However, we anticipate higher ~~volumes during the quarter were primarily~~fixed costs due to ~~higher sales volumes in Europe.~~timing of maintenance activities and unfavorable impacts related to unplanned plant outages at our Franklin, Louisiana and Pepinster, Belgium plants.

Sales and EBIT for Purification Solutions for the third quarter and first ~~quarter~~nine months of fiscal ~~2018~~2021 and ~~fiscal 2017~~2020 were as follows:

Sales in Purification Solutions increased by $1$6 million in the ~~first~~third quarter of fiscal ~~2017~~2021 compared to the same period of fiscal ~~2017~~2020 due to higher volumes ($13 million) and a favorable impact from foreign currency translation ($23 million). The higher volumes were primarily due to higher sales in specialty applications.

Sales in Purification Solutions increased by $5 million in the first nine months of fiscal 2021 when compared to the same period of fiscal 2020 due to the favorable impact from foreign currency translation ($8 million), and improved pricing and a more favorable product mix (combined $5 million), partially offset by ~~a less favorable price and product mix (combined $2~~lower volumes ($8 million). The lower volumes were primarily due to lower sales in mercury removal products.

EBIT in Purification Solutions increased by $2$4 million in the third quarter of fiscal 2021 compared to the third quarter of fiscal 2020 due to higher volumes ($2 million), and the receipt of insurance proceeds ($2 million). The higher volumes were primarily due to higher sales in specialty applications. The insurance proceeds were related to a plant outage that occurred in the first quarter of the fiscal ~~2018~~year.

EBIT in Purification Solutions increased by $3 million in the first nine months of fiscal 2021 when compared to the same period of fiscal ~~2017, primarily~~2020 due to ~~higher volumes~~reduction in fixed costs ($~~1 million) and the accelerated receipt of royalty payments ($3~~7 million), partially offset by ~~an unfavorable impact from changing inventory levels~~lower volumes ($24 million). Reduction in fixed costs were driven by the sale of our mine in Marshall, TX and the related long-term activated carbon supply agreement. The ~~royalty payment~~lower volumes were primarily due to a decrease in sales of mercury removal applications.

As we look to the fourth quarter of the fiscal year in the Purification Solutions segment, we expect to see lower volumes in mercury removal applications and the insurance proceeds received in the third quarter ~~consists of all the remaining payments due to the Company under that royalty arrangement.~~

~~Sales and EBIT for Specialty Fluids for the first quarter of fiscal 2018 and 2017 were as follows:~~

~~Sales in Specialty Fluids decreased by $5 million in the first quarter of fiscal 2018 compared to the same period of fiscal 2017 primarily due to lower volumes from reduced project activity.~~

~~EBIT in Specialty Fluids decreased by $4 million in the first quarter of fiscal 2018 compared to the same period of fiscal 2017 primarily due to lower volumes from reduced project activity.~~

~~During the second quarter, we anticipate that Reinforcement Materials~~ will benefit from the calendar year 2018 customer agreements along with a firm spot market in Europe and Asia. In Performance Chemicals we are expecting an improvement sequentially due to higher seasonal volumes and the positive impact from price increases, but anticipate margins will be impacted somewhat by rising feedstock costs in specialty carbons and higher costs to support growth investments. We also expect Purification Solutions to benefit from continued momentum in the specialty applications but it will be challenged by continued competitive pricing in the mercury removal application. In Specialty Fluids, we expect a similar level of project activity for the next quarter with an uptick in activity in the second half of the year.not repeat.

Our liquidity position, as measured by cash and cash equivalents plus borrowing availability, decreased by $91$111 million during the first ~~three~~nine months of fiscal ~~2018,~~2021, which was largely attributable to ~~a lower cash balance at December 31, 2017.~~the termination of our $100 million unsecured revolving credit agreement (the “Canadian Credit Agreement”) in the second quarter of fiscal 2021. As of ~~December 31, 2017,~~June 30, 2021, we had cash and cash equivalents of $~~189~~$173 million and borrowing availability under our revolving credit agreements of $1.2 billion.

As of June 30, 2021, we had access to borrowings under the following two credit agreements:

During the second quarter of 2021, we terminated our $100 million unsecured revolving credit agreement with TD Bank, NA, as Lender, which had a maturity date of ~~$1 billion. Our~~September 2021. The Canadian Credit Agreement provided liquidity for working capital and general corporate purposes for certain of our Canadian subsidiaries. We had no borrowings under this agreement during either fiscal 2021 or 2020.

As of June 30, 2021, we were in compliance with our debt covenants under the Credit Agreements, which, with limited exceptions, generally require us to comply on a quarterly basis with a leverage test requiring consolidated total debt not to exceed consolidated EBITDA (earnings before interest, taxes, depreciation and amortization) for the four quarters then ending by more than 3.50 to 1.00. Because of the uncertainty of the overall financial impact of the COVID-19 pandemic and to increase our financial flexibility, we amended the Credit Agreements as of June 8, 2020 to, among other changes, set the consolidated total debt to consolidated EBITDA ratio at 4.50 to 1.00 for the fiscal quarters ending September 30, 2020 through June 30, 2021.

Effective August 6, 2021, we entered into a new corporate revolving credit agreement (the “2021 Credit Agreement”), and terminated our existing corporate revolving credit agreement, which was ~~amended in~~scheduled to mature on October ~~2017~~23, 2022. The borrowing capacity under the 2021 Credit Agreement, which matures on August 6, 2026, subject to two one-year options to extend the maturity, exercisable on or prior to ~~October 2022,~~the first and second anniversaries of the effective date of the 2021 Credit Agreement, is $1 billion. The 2021 Credit Agreement supports our issuance of commercial paper, ~~program~~ and borrowings under it may be used for working capital, letters of credit and other general corporate purposes.

~~At December 31, 2017, we were in compliance with all~~ The Credit Agreement contains affirmative and negative covenants, ~~under our revolving credit facility, including~~a financial leverage test requiring the ~~total consolidated~~ratio of net debt (with the ability to offset such debt by the lesser of (i) unrestricted cash and cash equivalents and (ii) $150 million) to consolidated EBITDA ~~(earnings before interest, taxes, depreciation~~not to exceed 3.50 to 1.00, and ~~amortization) covenant.~~annual sustainability performance targets related to the Company’s reduction in its nitrogen oxide and sulfur dioxide emissions intensity, the achievement of which may adjust pricing under the Credit Agreement.

A significant portion of our business occurs outside the U.S. and our cash generation does not always align geographically with our cash needs. The vast majority of our cash and cash equivalent holdings tend to be held outside the U.S. Cash held by foreign subsidiaries is generally used to finance the subsidiaries’ operational activities and future investments. We ~~use~~are currently using a combination of commercial paper ~~throughout the year~~and revolving credit facility borrowings to ~~manage short-term~~meet our U.S. cash needs. ~~The~~We generally reduce our commercial paper balance ~~is generally paid down~~and, if applicable, borrowings under our revolving credit facilities, at quarter-end using cash derived from customer collections, settlement of intercompany balances and short-term intercompany loans. ~~In the unusual event that~~If additional funds are needed in the U.S., we ~~have the ability~~expect to be able to repatriate funds or to access additional ~~funds.~~

~~We do not expect Tax Reform, discussed in more detail in Note I, to have a material impact~~debt under our revolving credit facilities. As of June 30, 2021, there were no borrowings on the JPM Credit Agreement. As of June 30, 2021, our ~~liquidity position due to our existing tax attributes. We are evaluating~~borrowings under the ~~impact~~Euro Credit Agreement totaled $140 million and we had $59 million of ~~tax reform on our opportunities to repatriate some portion of our foreign cash balances to the U.S.~~commercial paper outstanding.

We generally manage our cash and debt on a global basis to provide for working capital requirements as needed by region or site. Cash and debt are generally denominated in the local currency of the subsidiary holding the assets or liabilities, except where there are operational cash flow reasons to hold non-functional currency or debt.

We continue to actively manage the business throughout the ongoing COVID-19 pandemic to maintain cash flow and we anticipate sufficient liquidity from (i) cash on hand; (ii) cash flows from operating activities; and (iii) cash available from our revolving credit ~~agreement~~facilities and our commercial paper program to meet our operational and capital investment needs and financial obligations for the foreseeable future. The liquidity we derive from cash flows from operations is, to a large degree, predicated on our ability to collect our receivables in a timely manner, the cost of our raw materials, and our ability to manage inventory levels.

~~We issued $250 million of 2.55% fixed rate debt in fiscal 2012 that matured on January 15, 2018. This debt was repaid using a combination of foreign cash and commercial paper borrowings.~~

We issued $30 million of 7.42% medium term notes in fiscal 1999 that mature on December 11, 2018 and are included in Current portion of long-term debt on the Consolidated Balance Sheets as of December 31, 2017. We intend to pay off these notes at maturity with cash on hand and/or commercial paper borrowings.

The following discussion of the changes in our cash balance refers to the various sections of our Consolidated Statements of Cash Flows.

Cash provided by operating activities, which consists of net income adjusted for the various non-cash items included in income, changes in working capital and changes in certain other balance sheet accounts, totaled ~~$45~~$157 million in the first ~~three~~nine months of fiscal ~~2018~~2021 compared to ~~$107~~$278 million of cash provided by operating activities during the same period of fiscal ~~2017.~~

Cash provided by operating activities in the first three months of fiscal 2018 was driven primarily by the non-cash impacts of depreciation and amortization of $39 million and an increase in our deferred tax provision of $186 million, which more than offset our net loss. In addition, there was an increase in Accounts payable and accrued liabilities. Partially offsetting these cash inflows was an increase in Accounts and notes receivable and Inventories.2020.

Cash provided by operating activities in the first ~~three~~nine months of fiscal ~~2017~~2021 was driven ~~primarily~~ by ~~net income~~business earnings excluding the non-cash impact of depreciation and amortization of ~~$38~~$117 million, which was partially offset by an increase in net working capital of $226 million. ~~In addition, there~~The increase in net working capital was ~~a decrease~~driven by an increase in ~~Accounts~~accounts receivable due to higher sales and an increase in ~~Accounts payable and accrued liabilities. Partially offsetting these cash inflows was~~inventory driven by a higher cost of raw materials, partially offset by an increase in ~~Inventories.~~accounts payable. Additionally, we made a cash payment of $32.6 million in the first quarter of fiscal 2021 related to a respirator litigation settlement in fiscal 2020 as discussed in Note G.

Cash provided by operating activities in the first nine months of fiscal 2020 was driven primarily by business earnings excluding the non-cash impact of depreciation and amortization of $117 million and a decrease in net working capital of $178 million, partially offset by an increase in Prepaid expenses and other assets of $25 million and a deferred tax benefit of $20 million.

In addition to the factors noted above, the following other elements of operations have a bearing on operating cash flows:

Restructurings — As of June 30, 2021, we had $8 million of total restructuring costs in accrued expenses in the Consolidated Balance Sheets related to certain of our global restructuring activities. In the first nine months of fiscal 2021, we paid $7 million related to these restructuring activities, and we expect to make additional cash payments of approximately $4 million in fiscal 2021 and $12 million thereafter.

Litigation Matters — As of June 30, 2021, we had a $20 million reserve for pending and future respirator claims that we expect to pay over multiple years. During fiscal 2020, we settled a large group of respirator claims for $65.2 million. We paid $32.6 million related to these settled claims during fiscal 2020, and the remaining $32.6 million in the first quarter of fiscal 2021. We also have other lawsuits, claims and contingent liabilities arising in the ordinary course of business.

~~In the three months ended December 31, 2017, investing~~Investing activities consumed ~~$101~~$110 million of cash ~~which was primarily driven by $64~~in the first nine months of fiscal 2021 compared to $252 million of cash ~~paid for our acquisition~~consumed in the first nine months of ~~Tech Blend, net of cash acquired of $1 million, and~~fiscal 2020. In both periods, investing activities included capital expenditures ~~of $52 million. These capital expenditures were~~ for sustaining and compliance capital projects at our operating facilities as well as capacity expansion capital expenditures. In addition, in the first nine months of fiscal 2020 we paid $84 million, net of cash acquired, for the acquisition ofShenzhen Sanshun Nano New Materials Co., Ltd in April 2020 and $8 million for the plant that we acquired from Nippon Steel Carbon Co., Ltd in September 2018. In the ~~three~~first nine months ~~ended December 31, 2016, investing activities consumed $23 million~~ of ~~cash which was primarily driven by capital expenditures of $22 million. These~~fiscal 2021, capacity expansion capital expenditures were primarily ~~for sustaining~~in Performance Chemicals, and ~~compliance capital projects at our operating facilities.~~in the same period of fiscal 2020 they were primarily in Performance Chemicals and Reinforcement Materials.

Capital expenditures for fiscal ~~2018~~2021 are expected to be approximately ~~$250~~$200 million. Our planned capital spending program for fiscal ~~2018~~2021 is primarily for sustaining, compliance and improvement capital projects at our operating facilities as well as capacity expansion capital expenditures ~~primarily for the construction of our fumed silica manufacturing plants~~ in ~~Carrollton, Kentucky and Wuhai, China.~~Performance Chemicals.

Financing activities consumed ~~$36~~$48 million of cash in the first ~~three~~nine months of fiscal ~~2018~~2021 compared to ~~$32~~$37 million during the same period of ~~cash consumed in~~fiscal 2020. In the first ~~three~~nine months of fiscal ~~2017.~~ 2021, financing activities primarily consisted of dividend payments to stockholders of $60 million, dividend payments to noncontrolling interests of $20 million, and net repayments from borrowings under our revolvers of $15 million, which consisted of proceeds of $150 million less repayments of $165 million, partially offset by net proceeds from the issuance of commercial paper of $46 million.

In the first ~~three~~nine months of ~~both~~ fiscal ~~2018 and 2017, these~~2020, financing activities primarily consisted of ~~share repurchases and~~ dividend payments to ~~stockholders.~~

~~We have entered into~~stockholders of $60 million, share repurchases of $44 million, dividend payments to noncontrolling interests of $26 million, the repayment of $20 million of commercial paper and the repayment of $15 million of other long-term ~~purchase agreements primarily for~~debt, partially offset by the ~~purchase~~net proceeds from borrowings under our revolvers of ~~raw materials. Under certain~~$125 million, which consisted of ~~these agreements the quantity~~proceeds of material being purchased is fixed, but the price paid changes as market prices change. For those commitments, the amounts included in the table below are based on market prices at December 31, 2017, which may differ from actual market prices at the time$444 million less repayments of ~~purchase.~~

As of ~~December 31, 2017,~~June 30, 2021, we had no material transactions that meet the definition of an off-balance sheet arrangement.

This report on Form 10-Q contains “forward-looking statements” under the Federal securities laws. These forward-looking statements address expectations or projections about the future, including our expectations for future financial ~~performance; demand~~performance and the factors we expect to impact our results of operations, including the factors we expect to impact results in our Reinforcement Materials, Performance Chemicals, and Purification Solutions segment in the fourth quarter of fiscal 2021; the amount of a charge for the damages related to the flooding at our ~~products;~~manufacturing and research and development facility in Pepinster, Belgium and the duration of the plant outage during which time we will not be able to produce product at this plant; the amount and timing of the charge to earnings we will record and the cash outlays we will make in connection with our reorganization and the closing of certain manufacturing facilities, restructuring initiatives and ~~restructuring initiatives;~~under our transformation plan for our Purification Solutions business; our estimated future amortization expenses for our intangible assets; the timing of expected payments from our reserve for pending and future respirator claims; our entry into cross-currency swaps and other financial instruments to manage foreign currency risks; the sufficiency of our cash on hand, cash provided from operations and cash available under our credit facilities and commercial paper program to fund our cash ~~requirements, including for the repayment of the current portion of~~requirements; our ~~long-term debt;~~expectations regarding our ability to repatriate funds or access additional debt under our revolving credit facilities; uses of available cash including anticipated capital ~~spending and future cash outlays associated with long-term contractual obligations; the impact we expect tax reform legislation in the U.S. to have on~~spending; our ~~future after-tax earnings and liquidity position, and our~~ expected operating tax rate for fiscal ~~2018;~~2021; and the possible outcome of legal ~~and environmental~~ proceedings. From time to time, we also provide forward-looking statements in other materials we release to the public and in oral statements made by authorized officers.

Forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, potentially inaccurate assumptions, and other factors, some of which are beyond our control or difficult to predict. If known or unknown risks materialize, our actual results could differ materially from those expressed in the forward-looking statements. Importantly, as we cannot predict the duration or scope of the COVID-19 pandemic, the negative impact to our results cannot be estimated with certainty. Factors that will influence the impact on our business and operations include the duration and extent of the pandemic, the virulence and spread of different strains of the virus and the level and timing of vaccine distribution around the world and their impact on the economic recovery and growth, the degree of disruption in our supply chain from global logistics matters resulting from the COVID-19 pandemic, and the general economic consequences of the pandemic. Further, the COVID-19 pandemic has also contributed to increased costs and decreased availability of labor and materials for construction projects, and these factors may increase the costs of our capital improvement projects and delay our completion of such projects.

In addition to factors described elsewhere in this report, the following are some of the factors that could cause our actual results to differ materially from those expressed in ~~the~~our forward-looking statements: ~~changes in raw material costs; lower than expected demand for our products; changes in~~industry capacity utilization and competition from other specialty chemical companies; safety, health and environmental requirements and related constraints imposed on our business; volatility in the ~~U.S.;~~price and availability of energy and raw materials; a significant adverse change in a customer relationship or the ~~loss~~failure of ~~one~~a customer to perform its obligations under agreements with us; failure to achieve growth expectations from new products, applications and technology developments; failure to realize benefits from acquisitions, alliances, or ~~more of~~joint ventures or achieve our ~~important customers;~~portfolio management objectives; negative or uncertain worldwide or regional economic conditions and market opportunities, including from trade relations or global health matters; litigation or legal proceedings; tax rates and fluctuations in foreign currency exchange and interest rates; our inability to complete capacity expansions or other development projects; ~~the availability of raw materials; our failure to develop new products or to keep pace with technological developments; fluctuations in currency exchange rates; patent rights of others; stock~~ and credit market conditions; the timely commercialization of products under development (which may be disrupted or delayed by technical difficulties, market acceptance, competitors’ new products, as well as difficulties in moving from the experimental stage to the production stage); demand for our customers’ products; competitors’ reactions to market conditions; unanticipated disruptions or delays in plant operations or development projects; delays in the successful integration of structural changes, including acquisitions or joint ventures; severe weather events that cause business interruptions, including plant and power outages or disruptions in supplier or customer operations; the accuracy of the assumptions we used in establishing reserves for ~~environmental matters and for~~ our share of liability for respirator ~~claims; and the outcome of pending litigation. Other~~claims. These other factors and risks are discussed more fully in our ~~2017 10-K.~~2020 10-K and in our subsequent SEC filings.

~~Refer to the discussion under the headings “Recently Adopted Accounting Standards” and “Recent Accounting Pronouncements” in Note B.~~

Information about market risks for the period ended ~~December 31, 2017~~June 30, 2021 does not differ materially from that discussed under Item 7A of our ~~2017~~2020 10-K.

As of ~~December 31, 2017,~~June 30, 2021, we carried out an evaluation, under the supervision and with the participation of our management, including our ~~Principal Executive Officer~~principal executive officer and our ~~Executive Vice President and Chief Financial Officer,~~principal financial officer, of the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15 under the Securities Exchange Act of 1934, as ~~amended (the “Exchange Act”).~~amended. Based upon that evaluation, our ~~Principal Executive Officer~~principal executive officer and our ~~Executive Vice President and Chief Financial Officer~~principal financial officer concluded that our disclosure controls and procedures were effective as of that date.

There were no changes in our internal ~~control~~controls over financial reporting that occurred during our fiscal quarter ended ~~December 31, 2017~~June 30, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. As a result of the COVID-19 pandemic, certain of our employees have been working remotely and certain manufacturing sites have been operating with limited personnel on-site. We have not identified any material changes in our internal control over financial reporting as a result of these changes to the working environment. We are continually monitoring and assessing the COVID-19 situation to determine any potential impacts on the design and operating effectiveness of our internal controls over financial reporting.

~~Issuer Purchases~~On August 6, 2021, we entered into a $1 billion unsecured revolving credit agreement (the "Credit Agreement") with a syndicate of ~~Equity~~lenders arranged by JPMorgan Chase Bank, N.A., Lead Left Bookrunner, Administrative Agent and Joint Lead Arranger, Citibank, N.A., Joint Lead Bookrunner, Joint Lead Arranger and Syndication Agent, Mizuho Bank, LTD., TD Securities (USA) LLC, Bank of America, N.A., U.S. Bank, National Association as Joint Lead Arrangers and Co-Documentation Agents, and Wells Fargo Bank, National Association as Co-Documentation Agent. J.P. Morgan Securities LLC and Mizuho Bank, LTD. also served as Co-Sustainability Agents for the facility.

Borrowings under the Credit Agreement may be made in multiple currencies and used for commercial paper support, working capital, letters of credit and other general corporate purposes. The ~~table below sets forth information regarding Cabot’s purchases~~facility matures on August 6, 2026, subject to two options to extend the maturity by one year, exercisable prior to the first and second anniversaries of the date of the Credit Agreement. At the Company’s election, eurocurrency loans denominated in U.S. dollars will bear interest at the LIBOR rate plus an applicable margin of between 0.68% and 1.20%, depending on the Company’s credit ratings, and at similar applicable rates for foreign currency borrowings. Pricing is also based upon the Company’s performance against annual intensity reduction targets for its ~~equity securities during~~sulfur dioxide (SO2) and nitrogen oxide (NOX) emissions. The Credit Agreement requires the ~~quarter~~Company to comply on a quarterly basis with a leverage test requiring net debt (with the ability to offset such debt by the lesser of (i) unrestricted cash and cash equivalents and (ii) $150 million) not to exceed consolidated EBITDA for the four quarters then ending by more than 3.50 to 1.00. Consistent with the Company’s former $1 billion revolving credit agreement, the Credit Agreement also includes negative covenants limiting, subject to exceptions, the Company’s ability to incur liens and subsidiary indebtedness, among other customary restrictions, as well as customary representations and warranties, affirmative covenants and events of default, including cross defaults and a change of control default. This description is a summary and is qualified in its entirety by reference to the Credit Agreement, which is filed as Exhibit 10.1 to this Quarterly Report on Form 10-Q for the quarterly period ended ~~December 31, 2017:~~June 30, 2021.

Concurrently with entering into the Credit Agreement, on August 6, 2021, we terminated our $1 billion revolving credit agreement with JPMorgan Chase Bank, N.A. and the other lenders party thereto, which, by its terms, was scheduled to mature on October 23, 2022.

Pursuant to the requirements 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.

Title of each class	Trading symbol(s)	Name of each exchange on which registered
Common Stock, $1 par value per share	CBT	The New York Stock Exchange


Large accelerated filer	☒	Accelerated filer	☐

Non-accelerated filer	☐ ~~(Do not check if smaller reporting company)~~	Smaller reporting company	☐

Emerging growth company	☐

Part I.	Financial Information

	Item 1.	Financial Statements (unaudited)
		Consolidated Statements of Operations	3
		Consolidated Statements of Comprehensive Income (Loss)	4
		Consolidated Balance Sheets	5
		Consolidated Statements of Cash Flows	7
		Consolidated Statements of Changes in Stockholders’ Equity	8
		Notes to the Consolidated Financial Statements	810

	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	2724
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	3734
	Item 4.	Controls and Procedures	3734

Part II.	Other Information
	Item 2.5.	~~Unregistered Sales of Equity Securities and Use of Proceeds~~Other Information	3835
	Item 6.	Exhibits	3836

		Notional Amount
Description	Borrowing	~~December 31, 2017~~June 30, 2021	September 30, ~~2017~~2020	Hedge Designation
Cross-Currency Swaps	3.4% Notes	USD 250 million swapped to EUR 223 million	USD 250 million swapped to EUR 223 million	Net investment
Forward Foreign Currency Contracts ⁽¹⁾	N/A	USD 1137 million	USD 554 million	No designation

Consolidated Balance Sheets	September 30, 2017
	As Originally Reported		Effect of Change			As Adjusted
	(In millions)
Inventories	$	396	$	37		$	433
Deferred income taxes (assets)	$	250	$	(13	)	$	237
Retained earnings	$	1,683	$	24		$	1,707

	(In millions)
Assets
Cash	$	1
Accounts Receivable		5
Inventories		3
Property, plant and equipment		7
Intangible assets		31
Goodwill		31
Total assets acquired		78

Liabilities
Current liabilities		(3	)
Deferred tax liabilities		(10	)
Total liabilities assumed		(13	)

Cash consideration paid	$	65

	Payments Due by Fiscal Year
	Remainder of Fiscal 2018		2019		2020		2021		2022		Thereafter		Total
	(In millions)
Reinforcement Materials	$	253	$	264	$	153	$	114	$	114	$	1,537	$	2,435
Performance Chemicals		48		58		55		54		43		468		726
Purification Solutions		7		7		6		1		—		—		21
Total	$	308	$	329	$	214	$	169	$	157	$	2,005	$	3,182

Level 1	—	Quoted market prices in active markets for identical assets or liabilities

Level 2	—	Significant other observable inputs (e.g., quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs other than quoted prices that are observable such as interest rate and yield curves, and market-corroborated inputs)

Level 3	—	Significant unobservable inputs

	~~Forecast for the Year Ended September 30, 2018~~
~~Effective tax rate~~		74	%
~~Impact of discrete tax items:~~
~~Unusual or infrequent items~~		~~(52~~	)%
~~Items related to uncertain tax positions~~		—	%
~~Other discrete tax items~~		—	%
~~Impact of certain items~~		(1	)%
~~Operating tax rate~~		21	%

Period	Total Number of Shares Purchased⁽¹⁾⁽²⁾		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs⁽¹⁾		Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs⁽¹⁾
October 1, 2017- October 31, 2017		—	$	—		—		1,715,824
November 1, 2017- November 30, 2017		140,500	$	60.70		140,500		1,575,324
December 1, 2017- December 31, 2017		67,226	$	58.33		67,226		1,508,098
Total		207,726				207,726

Exhibit No.		Description

Exhibit 3.1		Restated Certificate of Incorporation of Cabot Corporation effective January 9, 2009 (incorporated herein by reference to Exhibit 3.1 of Cabot’s Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2008, file reference 1-5667, filed with the SEC on February 9, 2009).

Exhibit 3.2		The By-laws of Cabot Corporation as amended January ~~8, 2016~~7, 2021 (incorporated herein by reference to Exhibit 3.1 of Cabot Corporation’s ~~Quarterly~~Current Report on Form ~~10-Q for the quarterly period ended December 31, 2015,~~8-K, file reference 1-5667, filed with the SEC on ~~February 5, 2016)~~January 12, 2021).

Exhibit 10.1*		~~Extension Agreement dated October 6, 2017 to the~~ Credit Agreement, dated ~~October 23, 2015, among~~August 6, 2021, between Cabot Corporation, JPMorgan Chase Bank, N.A., J.P. Morgan Securities ~~LLS, Citigroup Global Markets Inc.~~LLC, Citibank, N.A., ~~Citibank,~~Mizuho Bank, LTD., TD Bank, N.A., Bank of America, N.A., ~~Mizuho~~U.S. Bank, ~~Ltd., TD Bank, N.A., and~~National Association, Wells Fargo Bank, National Association, and the other lenders party thereto.

Exhibit 18.1*		~~Preferability letter regarding LIFO to FIFO change in inventory accounting.~~

Exhibit 31.1*		Certification of Principal Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.

Exhibit 31.2*		Certification of Principal Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act.

Exhibit 32**		Certifications of the Principal Executive Officer and the Principal Financial Officer pursuant to 18 U.S.C. Section 1350.

Exhibit 101.INS*		Inline XBRL Instance ~~Document.~~Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

Exhibit 101.SCH*		Inline XBRL Taxonomy Extension Schema Document.

Exhibit 101.CAL*		Inline XBRL Taxonomy Extension Calculation Linkbase Document.

Exhibit 101.DEF*		Inline XBRL Taxonomy Extension Definition Linkbase Document.

Exhibit 101.LAB*		Inline XBRL Taxonomy Extension Label Linkbase Document.

Exhibit 101.PRE*		Inline XBRL Taxonomy Extension Presentation Linkbase Document.

Exhibit 104*		The cover page from the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2021, formatted in Inline XBRL (included in Exhibit 101).

	CABOT CORPORATION

Date: ~~February 8, 2018~~August 9, 2021	By:	/s/ E~~duardo~~ ~~E. Cordeiro~~Erica McLaughlin
		~~Eduardo E. Cordeiro~~Erica McLaughlin
		~~Executive~~Senior Vice President and Chief Financial Officer
		(Duly Authorized Officer)


Date: ~~February 8, 2018~~August 9, 2021	By:	/s/ J~~ames~~ ~~P. Kelly~~Lisa m. Dumont
		~~James P. Kelly~~Lisa M. Dumont
		Vice President and Controller (Chief Accounting Officer)