EASTMAN CHEMICAL CO

Table of Contents

Table of Contents

1. SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared by Eastman Chemical Company ("Eastman" or the "Company") in accordance and consistent with the accounting policies stated in the Company's 2025 Annual Report on Form 10-K, and should be read in conjunction with the consolidated financial statements in Part II, Item 8 of that report, with the exception of recently adopted accounting standards noted below. The December 31, 2025 financial position data included herein was derived from the consolidated financial statements included in the 2025 Annual Report on Form 10-K but does not include all disclosures required by accounting principles generally accepted in the United States ("GAAP").

In the opinion of management, the unaudited consolidated financial statements include all normal recurring adjustments necessary for the fair presentation of the interim financial information in conformity with GAAP. These statements contain some amounts that are based upon management estimates and judgments. Future actual results could differ from such current estimates and judgments. The unaudited consolidated financial statements include assets, liabilities, sales revenue, and expenses of all majority-owned subsidiaries and joint ventures in which a controlling interest is maintained. Eastman accounts for other joint ventures and investments in minority-owned companies where it exercises significant influence on an equity basis. Intercompany transactions and balances are eliminated in consolidation.

Recently Adopted Accounting Standards

Accounting Standards Update ("ASU") 2025-05 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets: On January 1, 2026, Eastman adopted this update which addresses the application of Topic 326 to current accounts receivable and current contract assets arising from transactions accounted for under Topic 606, Revenue from Contracts with Customers. The update provides a practical expedient permitting entities, when estimating expected credit losses for those balances, to assume that current conditions at the balance sheet date do not change over the remaining life of the asset. The Company elected the practical expedient upon adoption. The adoption did not have an impact on the Company's financial statements and related disclosures.

Accounting Standards Issued But Not Adopted as of March 31, 2026

ASU 2024-03 Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses: The Financial Accounting Standards Board ("FASB") issued this update in November 2024, which requires public companies to provide additional disclosure of certain income statement expense line items. This guidance is intended to improve transparency around the nature of expenses and their impact on financial performance. The ASU is effective for fiscal periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted, and the transition method is prospective, with the option for retrospective application. Management is currently evaluating the impact of the changes required by the new standard on the Company's financial statements and related disclosures.

ASU 2025-06 Intangibles Goodwill and Other Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software: The FASB issued this update in September 2025, which removes prescriptive development stages and establishes a probable-to-complete recognition threshold under which capitalization of software development costs begins when management has authorized and committed to funding the project and it is probable the project will be completed and used as intended. The ASU is effective for fiscal periods beginning after December 15, 2027, including interim periods within those years, with early adoption permitted. The update permits prospective application. Management is currently evaluating the impact of the changes required by the new standard on the Company's financial statements and related disclosures.

Table of Contents

ASU 2025-10 Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities: The FASB issued this update in December 2025, which establishes authoritative guidance on the accounting for government grants, including grants related to an asset and grants related to income. The amendments, largely aligned with International Accounting Standards 20 Accounting for Government Grants and Disclosure of Government Assistance ("IAS 20"), require that a government grant not be recognized until it is probable the Company will comply with the conditions attached to the grant and that the grant will be received. The amendments further codify specific recognition approaches for asset-related grants and for income-related grants, with presentation as income or deducted from the related expense. The ASU is effective for fiscal periods beginning after December 15, 2028, including interim periods within those years, with early adoption permitted. The transition method may be modified prospective, modified retrospective, or retrospective. Management is currently evaluating the impact of the changes required by the new standard on the Company's financial statements and related disclosures.

Working Capital Management and Off-Balance Sheet Arrangements

The Company engages in off-balance sheet, uncommitted accounts receivable factoring programs as a routine part of its ordinary business operations. Through these programs, entire invoices may be sold to third-party financial institutions, the vast majority of which are without recourse. Under these agreements, the Company sells the invoices at face value, less a transaction fee, which substantially equals the carrying value and fair value with no gain or loss recognized, and no credit loss exposure is retained. Available capacity under these programs, which the Company uses as a routine source of working capital funding, is dependent on the level of accounts receivable eligible to be sold and the financial institutions' willingness to purchase such receivables. In addition, certain programs also require that the Company continue to service, administer, and collect the sold accounts receivable at market rates. The total amounts sold under the program in first quarter 2026 and 2025 were $648 million and $676 million, respectively.

The Company works with suppliers to optimize payment terms and conditions on accounts payable to enhance the timing of working capital and cash flows. As part of its supplier financing programs, suppliers may voluntarily sell receivables due from Eastman to a participating financial institution. Eastman's responsibility is limited to making payments on the terms originally negotiated with suppliers, and the range of payment terms Eastman negotiates with suppliers is consistent regardless of whether a supplier participates in the program. Either Eastman or a participating financial institution may terminate a supplier finance program upon 90 days' notice. Within these programs, the Company maintains a structured payables program that utilizes a payables processing arrangement with a financial institution to support the processing and settlement of freight and logistics invoices, whereby the financial institution remits payments to certain freight service providers based on invoices approved by the Company, and the Company reimburses the financial institution. The Company pays fixed per‑transaction fees for the invoice processing and payment services for the structured payables program.

Confirmed obligations in these programs of $136 million and $110 million at March 31, 2026 and December 31, 2025, respectively, are included in "Payables and other current liabilities" on the Unaudited Consolidated Statements of Financial Position.

Government Grants

On May 29, 2025, the U.S. Department of Energy ("DOE") terminated an award related to the Company's Polyethylene Terephthalate Recycling Decarbonization Project in Longview, Texas. The Company continues to record reimbursements for amounts incurred prior to the date of the award termination and for which the Company is contractually entitled under an assistance agreement with the DOE. The Company received $3 million in reimbursements from the DOE during first quarter 2026 related to reimbursement requests from the prior year. All requested reimbursements have been received as of March 31, 2026. While waiting for a decision on reinstatement of the award, the Company is actively evaluating the impact of the termination on the project's scope, timeline, and use of associated assets. The Company has prepared and submitted a settlement proposal in the event reinstatement is not obtained.

For additional government grant information, see Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K.

Table of Contents

Change in Laws and Regulations

Eastman recognizes the financial statement effects of changes in laws or regulations in the period in which the Company obtains a legal right to the related asset or incurs a legal obligation for the related liability. On February 20, 2026, the Supreme Court ruled that the tariffs imposed under the International Emergency Economic Powers Act ("IEEPA") were not sufficiently authorized and deemed invalid. Further, on March 4, 2026, the Court of International Trade ruled that U.S. Customs and Border Protection must refund IEEPA tariffs that were collected. As a result of these court rulings establishing the Company's legal right to a refund of IEEPA tariffs, the Company recognized a $22 million benefit in "Cost of sales" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings and a $22 million increase in "Miscellaneous receivables" in the Unaudited Consolidated Statements of Financial Position. On April 20, 2026, all applicable IEEPA entries were submitted and are currently pending refund processing.

2. INVENTORIES

Inventories valued on the last-in, first-out ("LIFO") method were approximately 55 percent of total inventories at both March 31, 2026 and December 31, 2025.

3. INCOME TAXES

First quarter 2026 provision for income taxes includes the impact of transitional provisions of the One Big Beautiful Bill Act primarily related to the deductibility of previously capitalized research and development expenditures. First quarter 2025 provision for income taxes included an increase related to the foreign rate variance due to the Company's mix of earnings and an increase related to adjustments of certain prior year income tax returns.

At both March 31, 2026 and December 31, 2025, Eastman had $183 million in unrecognized tax benefits.

Table of Contents

4. BORROWINGS

(1)The carrying value of the euro-denominated 1.875% notes due November 2026 fluctuates with changes in the euro to U.S. dollar exchange rate. The carrying value of this euro-denominated borrowing has been designated as a non-derivative net investment hedge of a portion of the Company's net investments in euro functional-currency denominated subsidiaries to offset foreign currency fluctuations.

In first quarter 2026, the Company issued $600 million aggregate principal amount of 4.5% notes due February 2031 in a registered public offering (the "2026 Notes"). Proceeds from the sale of the 2026 Notes, net of original issue discounts and issuance costs, were $594 million. All proceeds from the 2026 Notes are reported under financing activities on the Unaudited Consolidated Statements of Cash Flows.

Credit Facility, Term Loans, and Commercial Paper Borrowings

The Company has access to a $1.50 billion revolving credit agreement (the "Credit Facility") that matures in February 2031. Borrowings under the Credit Facility are subject to interest at varying spreads above quoted market rates and a commitment fee is paid on the total unused commitment. The Credit Facility provides available liquidity for general corporate purposes and supports commercial paper borrowings. Commercial paper borrowings are classified as short-term. In February 2026, the Credit Facility was amended to extend the maturity to February 2031 and to temporarily adjust the maximum leverage ratio covenant through fiscal quarter ending June 30, 2027 in the event of further macroeconomic uncertainty impacting operating results. All other material terms of the Credit Facility remained unchanged. At March 31, 2026 and December 31, 2025, the Company hadno outstanding borrowings under the Credit Facility andno commercial paper borrowings.

In first quarter 2026, the remaining $150 million of the five-year term loan (the "2027 Term Loan") was repaid using available cash. There were no extinguishment costs associated with the repayment of the 2027 Term Loan. The outstanding balance on the 2027 Term Loan was $150 million at December 31, 2025 with a variable interest rate of 5.14%.

The Credit Facility contains customary covenants, including requirements to maintain certain financial ratios, that determine the events of default, amounts available, and terms of borrowings. The Company was in compliance with all applicable covenants at both March 31, 2026 and December 31, 2025.

Table of Contents

Fair Value of Borrowings

Eastman has classified its total borrowings at March 31, 2026 and December 31, 2025 under the fair value hierarchy as defined in the accounting policies in Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K. The fair value for fixed-rate debt securities is based on quoted market prices for the same or similar debt instruments and is classified as Level 2. The fair value of the Company's other borrowings equals the carrying value and is classified as Level 2. The Company's fair value of total borrowings was $5.1 billion at March 31, 2026 and $4.7 billion at December 31, 2025. The Company hadno borrowings classified as Level 1 or Level 3 as of March 31, 2026 and December 31, 2025.

5. DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS

Overview of Hedging Programs

Eastman is exposed to market risks, such as changes in foreign currency exchange rates, raw material and energy prices, and interest rates. To mitigate these market risks and their effects on the cash flows of the underlying transactions and investments in foreign subsidiaries, the Company uses various derivative and non-derivative financial instruments, when appropriate, in accordance with the Company's hedging strategy and policies. Designation is performed on a specific exposure basis to support hedge accounting. The Company does not enter into derivative transactions for speculative purposes.

For further information on the Company's hedging programs, see Note 10, "Derivative and Non-Derivative Financial Instruments", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K.

Cash Flow Hedges

Cash flow hedges are derivative instruments designated as and used to hedge the exposure to variability in expected future cash flows that are attributable to a particular risk. The derivative instruments that are designated and qualify as a cash flow hedge are reported on the balance sheet at fair value, and the changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the anticipated cash flows of the underlying exposures being hedged. The change in the hedge instrument is reported as a component of "Accumulated other comprehensive income (loss)" ("AOCI") on the Unaudited Consolidated Statements of Financial Position and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Cash flows from cash flow hedges are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows.

Fair Value Hedges

Fair value hedges are defined as derivative or non-derivative instruments designated as and used to hedge the exposure to changes in the fair value of an asset or a liability or an identified portion thereof that is attributable to a particular risk. The derivative instruments that are designated and qualify as fair value hedges are reported as "Short-term borrowings" or "Long-term borrowings" on the Unaudited Consolidated Statements of Financial Position at fair value, and the changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the anticipated fair value of the underlying exposures being hedged. The net of the change in the hedge instrument and item being hedged for qualifying fair value hedges is recognized in earnings in the same period or periods during which the hedged transaction affects earnings. Cash flows from fair value hedges are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows.

Net Investment Hedges

Net investment hedges are defined as derivative or non-derivative instruments designated as and used to hedge the foreign currency exposure of the net investments in certain foreign operations. The net of the change in the hedge instrument and item being hedged for qualifying net investment hedges is reported as a component of the "Cumulative translation adjustment" ("CTA") within AOCI on the Unaudited Consolidated Statements of Financial Position. Cash flows from the CTA component are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows. Recognition in earnings of amounts previously recognized in CTA is limited to circumstances such as complete or substantially complete liquidation of the net investment in the hedged foreign operation. In the event of a complete or substantially complete liquidation of the net investment, cash flows from net investment hedges are classified as investing activities in the Unaudited Consolidated Statements of Cash Flows.

Table of Contents

For derivative cross-currency interest rate swap net investment hedges, gains and losses representing hedge components excluded from the assessment of effectiveness are recognized in CTA within AOCI and recognized in earnings through the periodic swap interest accruals. The cross-currency interest rate swaps designated as net investment hedges are included as part of "Other long-term liabilities", "Other noncurrent assets", "Payables and other current liabilities", or "Other current assets" on the Unaudited Consolidated Statements of Financial Position. Cash flows from excluded components are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows.

Eastman enters into fixed-to-fixed cross-currency swaps and designates these swaps to hedge a portion of its net investment in a non-U.S. dollar functional currency denominated subsidiary against foreign currency fluctuations. These contracts involve the exchange of fixed U.S. dollars with fixed foreign currency interest payments periodically over the life of the contracts and an exchange of the notional amounts at maturity.

In first quarter 2026, the Company entered into fixed-to-fixed cross-currency swaps of $100 million (€86 million) maturing February 2031. Additionally, the Company amended and extended the terms of certain fixed-to-fixed cross-currency swaps of $235 million (€226 million) originally maturing December 2028 to maturing February 2031.

In first quarter 2025, the Company entered into fixed-to-fixed cross-currency swaps of $50 million (¥7.9 billion) maturing December 2028, $50 million (€48 million) maturing December 2028, $100 million (€97 million) maturing August 2029, and $100 million (€97 million) maturing February 2034.

Additionally, in first quarter 2025, Eastman voluntarily terminated and reentered into fixed-to-fixed cross-currency swaps of $245 million (€229 million terminated; €236 million reentered) maturing December 2028, and $300 million (€282 million terminated; €290 million reentered) maturing March 2033. The Company also voluntarily terminated fixed-to-fixed cross-currency swaps of $50 million (¥7.4 billion) maturing March 2025, and $375 million (€351 million) maturing March 2025. The termination of cross-currency swaps in first quarter 2025 resulted in a $2 million loss recognized in CTA. The related cash flows were classified as investing activities in the Unaudited Consolidated Statements of Cash Flows.

Summary of Financial Position and Financial Performance of Hedging Instruments

The following table presents the notional amounts outstanding at March 31, 2026 and December 31, 2025 associated with Eastman's hedging programs.

Table of Contents

Fair Value Measurements

All the Company's derivative assets and liabilities are currently classified as Level 2. Level 2 fair value is based on estimates using standard pricing models. These standard pricing models use inputs that are derived from, or corroborated by, observable market data such as interest rate yield curves and currency spot and forward rates. The fair value of commodity contracts is derived using forward curves supplied by an industry recognized and unrelated third party. In addition, on an ongoing basis, the Company compares a subset of its valuations against valuations received from the counterparties to validate the accuracy of its standard pricing models. The Company hadno derivatives classified as Level 1 or Level 3 as of March 31, 2026 or December 31, 2025. Counterparties to these derivative contracts are highly rated financial institutions which the Company believes carry minimal risk of nonperformance, and the Company diversifies its positions among such counterparties to reduce its exposure to counterparty risk and credit losses. The Company monitors the creditworthiness of its counterparties on an ongoing basis. The Company did not realize a credit loss related to these counterparties during first quarter 2026 or 2025.

All the Company's derivative contracts are subject to master netting arrangements, or similar agreements, which provide for the option to settle contracts on a net basis when they settle on the same day and in the same currency. In addition, these arrangements provide for a net settlement of all contracts with a given counterparty in the event that the arrangement is terminated due to the occurrence of default or a termination event. The Company does not have any cash collateral due under such agreements.

The Company has elected to present derivative contracts on a gross basis within the Unaudited Consolidated Statements of Financial Position. The following table presents the financial assets and liabilities valued on a recurring and gross basis and includes where the financial assets and liabilities are located within the Unaudited Consolidated Statements of Financial Position as of March 31, 2026 and December 31, 2025.

Table of Contents

In addition to the fair value associated with derivative instruments designated as cash flow hedges and net investment hedges, the Company had a carrying value of $574 million at March 31, 2026 and $586 million at December 31, 2025 associated with non-derivative instruments designated as foreign currency net investment hedges. The designated foreign currency-denominated borrowings are included as part of "Borrowings due within one year" on the Unaudited Consolidated Statements of Financial Position.

For additional fair value measurement information, see Note 1, "Significant Accounting Policies", and Note 10, "Derivative and Non-Derivative Financial Instruments", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K.

The following table presents the effect of the Company's hedging instruments on "Other comprehensive income (loss), net of tax" ("OCI") and financial performance for first quarter 2026 and 2025.

Table of Contents

The following table presents the effect of fair value and cash flow hedge accounting in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings for first quarter 2026 and 2025.

The Company enters into foreign exchange derivatives denominated in multiple currencies which are transacted and settled in the same quarter. These derivatives are not designated as hedges due to the short-term nature and the gains or losses on these derivatives are marked-to-market in line item "Other (income) charges, net" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings. As a result of these derivatives, the Company recognized a net loss of $12 million during first quarter 2026, and recognized a net gain of $3 million during first quarter 2025.

Pre-tax monetized positions and mark-to-market gains and losses from currency, raw materials and energy, and certain interest rate hedges that were included in AOCI resulted in a net unrealized loss of $41 million and a net unrealized loss of $119 million at March 31, 2026 and December 31, 2025, respectively. Unrealized losses in AOCI decreased between December 31, 2025 and March 31, 2026 primarily as a result of a decrease in euro to U.S. dollar exchange rates. If realized, approximately $10 million in pre-tax losses as of March 31, 2026, would be reclassified into earnings during the next 12 months, including foreign exchange contracts prospectively dedesignated and monetized in 2024.

6. RETIREMENT PLANS

Defined Benefit Pension Plans and Other Postretirement Benefit Plans

Eastman maintains defined benefit pension plans that provide eligible employees with retirement benefits. In addition, Eastman provides life insurance for eligible retirees hired prior to January 1, 2007. Company funding is provided for eligible Medicare retirees hired prior to January 1, 2007 with a health reimbursement arrangement. Costs recognized for these benefits are estimated amounts, which may change as actual costs for the year are determined.

Table of Contents

Components of net periodic benefit (credit) cost were as follows:

First quarter 2026 reflects a prior service credit related to the Company’s 2025 other postretirement benefit plan amendment. For additional information regarding retirement plans, see Note 11, "Retirement Plans", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K.

7. ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS

Certain Eastman manufacturing facilities generate hazardous and nonhazardous wastes, of which the treatment, storage, transportation, and disposal are regulated by various governmental agencies. In connection with the cleanup of various hazardous waste sites, the Company, along with many other entities, has been designated a potentially responsible party ("PRP") by the U.S. Environmental Protection Agency under the Comprehensive Environmental Response, Compensation and Liability Act, which potentially subjects PRPs to joint and several liability for certain cleanup costs. In addition, the Company will incur costs for environmental remediation and closure and post-closure under the federal Resource Conservation and Recovery Act. Reserves for environmental contingencies have been established in accordance with Eastman's policies described in Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K. The resolution of uncertainties related to environmental matters may have a material adverse effect on the Company's consolidated financial statements and related disclosures in the period recognized. However, because of the availability of legal defenses, the Company's preliminary assessment of actions that may be required, and the extended period of time that the obligations are expected to be satisfied, management does not believe that the Company's liability for these environmental matters, individually or in the aggregate, will have a material adverse effect on the Company's future overall financial position, results of operations, or cash flows.

Environmental Remediation and Environmental Asset Retirement Obligations

The Company's net environmental reserve for environmental contingencies, including remediation costs and asset retirement obligations, is included as part of "Other noncurrent assets", "Payables and other current liabilities", and "Other long-term liabilities" on the Unaudited Consolidated Statements of Financial Position as follows:

Environmental Remediation

Estimated future environmental expenditures for undiscounted remediation costs ranged from $282 million to $508 million and from $285 million to $509 million at March 31, 2026 and December 31, 2025, respectively. The best estimate or minimum estimated future environmental expenditures are considered to be probable and reasonably estimable.

Table of Contents

Reserves for environmental remediation include liabilities expected to be paid within approximately 30 years. The amounts charged to pre-tax earnings for environmental remediation and related charges are recognized in "Cost of sales" and "Other (income) charges, net" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings.

Changes in the reserves for environmental remediation liabilities during first three months 2026 and full year 2025 are summarized below:

Environmental Asset Retirement Obligations

An asset retirement obligation is an obligation for the retirement of a tangible long-lived asset that is incurred upon the acquisition, construction, development, or normal operation of that long-lived asset. Environmental asset retirement obligations primarily consist of closure and post-closure costs. For sites that have environmental asset retirement obligations, the best estimate recognized to date for these environmental asset retirement obligation costs were $33 million at both March 31, 2026 and December 31, 2025.

Non-Environmental Asset Retirement Obligations

The Company has contractual asset retirement obligations not associated with environmental liabilities. Eastman's non-environmental asset retirement obligations are primarily associated with the future closure of leased manufacturing assets in Pace, Florida and Oulu, Finland. These non-environmental asset retirement obligations were $57 million and $56 million at March 31, 2026 and December 31, 2025, respectively, and are included in "Other long-term liabilities" on the Unaudited Consolidated Statements of Financial Position.

8. LEGAL MATTERS

From time to time, Eastman and its operations are parties to, or targets of, lawsuits, claims, investigations and proceedings, including product liability, personal injury, asbestos, patent and intellectual property, commercial, contract, environmental, antitrust, health and safety, and employment matters, which are primarily handled and defended in the ordinary course of business. While the Company is unable to predict the outcome of these matters, it does not believe, based upon currently available facts, that the ultimate resolution of any such pending matters will have a material adverse effect on its overall financial position, results of operations, or cash flows.

Table of Contents

9. STOCKHOLDERS' EQUITY

Reconciliations of the changes in stockholders' equity for first quarter 2026 and 2025 are provided below:

(1)Cash dividends declared may consist of both paid and unpaid dividends.

(2)Share-based compensation expense is based on the fair value of share-based awards.

(3)Additional paid-in capital includes the value of shares withheld for employees' taxes on vesting of share-based compensation awards.

Table of Contents

Accumulated Other Comprehensive Income (Loss), Net of Tax

Amounts of other comprehensive income (loss) are presented net of applicable taxes. Eastman recognizes deferred income taxes on the CTA related to branch operations and income from other entities included in the Company's consolidated U.S. tax return. No deferred income taxes are recognized on the CTA of other subsidiaries outside the United States because the CTA is considered to be a component of indefinitely invested, unremitted earnings of these foreign subsidiaries.

Components of OCI recognized in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings are presented below, before tax and net of tax effects:

Table of Contents

10. EARNINGS AND DIVIDENDS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share ("EPS") which are calculated using the treasury stock method:

Shares underlying stock options of 4,051,375 and 1,716,564 for first quarter 2026 and 2025 were excluded from the calculations of diluted EPS because the grant date exercise price of these options was greater than the average market price of the Company's common stock and the effect of including them in the calculations of diluted EPS would have been antidilutive. No shares were repurchased in first quarter 2026 or 2025.

The Company declared cash dividends of $0.84 and $0.83 per share for first quarter 2026 and 2025, respectively.

Table of Contents

11. ASSET IMPAIRMENTS, RESTRUCTURING, AND OTHER CHARGES, NET

(1)First quarter 2026 included severance charges of $3 million and restructuring charges of $3 million related to the closure of a production line at a German performance films facility in the Advanced Materials ("AM") segment. In addition, inventory adjustments of $3 million in the AM segment were recognized in "Cost of sales" in the Unaudited Consolidated Statement of Earnings, Comprehensive Income, and Retained Earnings in first quarter 2026 related to this closure.

(2)First quarter 2026 included severance charges of $3 million related to corporate cost reduction initiatives reported in "Other".

(3)First quarter 2025 included severance charges of $1 million and restructuring charges of $3 million related to the closure of a heat-transfer fluids production line at a North America specialty fluids and energy facility in the Additives & Functional Products segment.

(4)First quarter 2025 included charges of $5 million related to profitability improvement initiatives which are reported in "Other".

Changes in Reserves

The following table summarizes the changes in asset impairments and restructuring reserves in first three months 2026 and full year 2025:

Substantially all severance costs remaining as of March 31, 2026 are expected to be paid within one year.

12. SHARE-BASED COMPENSATION AWARDS

The Company utilizes share-based awards under employee and non-employee director compensation programs. These share-based awards include restricted and unrestricted stock, restricted stock units ("RSUs"), stock options, stock appreciation rights, and performance share awards ("PSAs"). In first quarter 2026 and 2025, $27 million and $23 million, respectively, of compensation expense before tax was recognized in "Selling, general and administrative expense" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings for all share-based awards. The related impact on net earnings for first quarter 2026 and 2025 was $20 million and $17 million, respectively, net of deferred tax expense related to share-based award compensation for each period.

Stock Option Grants

In first quarter 2026 and 2025, the Company granted approximately 773 thousand and 408 thousand stock options, respectively, under the 2021 Omnibus Stock Compensation Plan. Options are granted with an exercise price equal to the closing market price

Table of Contents

of the Company's stock on the grant date, have a term often years, and generally vest ratably over a period of up tothree years. In first quarter 2026 and 2025, $11 million and $9 million, respectively, of compensation expense related to stock option awards was recognized, including expense associated with qualifying termination eligibility. Compensation expense for stock option awards is generally recognized over the applicable vesting period. For employees that satisfy the qualifying termination provisions as defined in the award documents, the compensation expense may be recognized over a shorter time period. In first quarter 2026 and 2025, the Company recognized $10 million and $8 million, respectively, of stock option compensation expense for employees who became eligible under the qualifying termination provisions prior to completing the requisite service period. The Company utilizes the Black-Scholes-Merton option valuation model to estimate the fair value of stock options granted.

The assumptions used in the determination of fair value for stock option grants in first quarter 2026 and 2025 are provided in the table below:

At March 31, 2026, $4 million in compensation expense related to unvested stock options is expected to be recognized over the next three years.

Other Share-Based Compensation Awards

The Company also grants PSAs, RSUs, and other long-term equity awards. PSAs are settled in unrestricted shares of common stock and vest at the end of a three-year performance period, contingent upon the achievement of specified performance goals, including average Return on Invested Capital and relative total stockholder return versus a defined peer group. The target shares awarded are assumed to be earned at 100 percent, and the actual number of shares awarded at the end of the three-year performance period can range from zero to 250 percent of the target shares based on final performance. RSUs are settled in unrestricted shares of common stock and generally vest over periods of up to three years. The fair value of the PSA component subject to market conditions is estimated using a Monte Carlo simulation model. The fair value of RSU awards is generally based on the closing market price of the Company's stock on the grant date. Compensation expense for PSAs, RSUs, and other long-term equity awards is generally recognized over the applicable vesting or performance period. For employees that satisfy the qualifying termination provisions as defined in the award documents and who meet certain additional requirements, the compensation expense may be recognized over a shorter time period.

In first quarter 2026 and 2025, the Company granted approximately 452 thousand and 332 thousand PSA target awards, respectively, for the 2026-2028 and 2025-2027 performance periods. In first quarter 2026 and 2025, the Company also granted approximately 239 thousand and 176 thousand RSUs, respectively. In first quarter 2026 and 2025, $16 million and $14 million, respectively, of compensation expense before tax was recognized for PSAs, RSUs, and other long-term equity awards and was included in the total compensation expense noted above for all share-based awards. At March 31, 2026, approximately $110 million in unrecognized compensation expense related to PSAs and RSUs is expected to be recognized primarily over a period ofthree years.

For additional information regarding share-based compensation plans and awards, see Note 18, "Share-Based Compensation Plans and Awards", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K.

Table of Contents

13. SEGMENT INFORMATION

Eastman's products and operations are managed and reported infour operating segments: Advanced Materials ("AM"), Additives & Functional Products ("AFP"), Chemical Intermediates ("CI"), and Fibers. The economic factors that impact the nature, amount, timing, and uncertainty of revenue and cash flows vary among the Company's operating segments and the geographical regions in which they operate. This operating segment structure is used by the Chief Operating Decision Maker ("CODM"), who has been determined to be the Chief Executive Officer, to make key operating decisions and assess performance of the Company. The CODM evaluates segment operating performance, and makes resource allocation and performance evaluation decisions, based on Adjusted EBIT, defined as the GAAP measure earnings before interest and taxes ("EBIT"), adjusted for non-core, unusual, or non-recurring items. These adjustments allow the CODM to evaluate segment operating performance excluding the effect of transactions, costs, and losses or gains that do not directly result from Eastman's normal, or "core", business and operations, or are otherwise of an unusual or non-recurring nature. For disaggregation of revenue by major product lines and regions for each operating segment, see Note 20, "Segment and Regional Sales Information", to the consolidated financial statements in Part II, Item 8 of the Company's 2025 Annual Report on Form 10-K. For additional financial and product information for each operating segment, see Part I, Item 1, "Business - Business Segments", in the Company's 2025 Annual Report on Form 10-K.

(1)Other segment items for each reportable segment includes research and development ("R&D") expenses, other components of post-employment (benefit) cost, net and other (income) charges, net.

(2)Other is not considered an operating segment. Other includes sales and costs from growth initiatives and businesses, R&D costs, pension and other postretirement benefit plans income (expense), net, and other income (charges), net that are not identifiable to an operating segment.

(3)See Note 11, "Asset Impairments, Restructuring, and Other Charges, Net", for a description of included items.

Table of Contents

(1)Other segment items for each reportable segment includes R&D expenses, other components of post-employment (benefit) cost, net and other (income) charges, net.

(2)Other is not considered an operating segment. Other includes sales and costs from growth initiatives and businesses, R&D costs, pension and other postretirement benefit plans income (expense), net, and other income (charges), net that are not identifiable to an operating segment.

(3)See Note 11, "Asset Impairments, Restructuring, and Other Charges, Net", for a description of included items.

Table of Contents

(1)Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets.