EASTMAN CHEMICAL CO

Non-GAAP financial measures, and the accompanying reconciliations of the non-GAAP financial measures to the most comparable GAAP measures, are presented below in this section and in "Overview", "Results of Operations", "Summary by Operating Segment", and "Liquidity and Other Financial Information - Cash Flows" in this MD&A.

Management discloses non-GAAP financial measures, and the related reconciliations to the most comparable GAAP financial measures, because it believes investors use these metrics in evaluating longer term period-over-period performance, and to allow investors to better understand and evaluate the information used by management to assess the Company's and its operating segments' performances, make resource allocation decisions, and evaluate organizational and individual performances in determining certain performance-based compensation. Non-GAAP financial measures do not have definitions under GAAP, and may be defined differently by, and not be comparable to, similarly titled measures used by other companies. As a result, management cautions investors not to place undue reliance on any non-GAAP financial measure, but to consider such measures alongside the most directly comparable GAAP financial measure.

Company Use of Non-GAAP Financial Measures

Non-Core Items and any Unusual or Non-Recurring Items Excluded from Non-GAAP Earnings

In addition to evaluating Eastman's financial condition, results of operations, liquidity, and cash flows as reported in accordance with GAAP, management evaluates Company and operating segment performance, and makes resource allocation and performance evaluation decisions, 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.

•Non-core transactions, costs, and losses or gains relate to, among other things, cost reductions, growth and profitability improvement initiatives, changes in businesses and assets, and other events outside of the Company's core business operations, and have included asset impairments, restructuring, and other charges and gains, costs of and related to acquisitions, gains and losses from and costs related to dispositions, closures, or shutdowns of businesses or assets, financing transaction costs, environmental and other costs related to previously divested businesses or non-operational sites and product lines, and mark-to-market losses or gains for pension and other postretirement benefit plans.

•In 2023, the Company recognized unusual insurance proceeds, net of costs, from the previously reported January 31, 2022 operational incident at its Kingsport site as a result of a steam line failure (the "steam line incident"). Management considered the operational incident unusual because of the Company's operational and safety history and the magnitude of the unplanned disruption.

Because non-core, unusual, or non-recurring transactions, costs, and losses or gains may materially affect the Company's, or any particular operating segment's, financial condition or results in a specific period in which they are recognized, management believes it is appropriate to evaluate the financial measures prepared and calculated in accordance with both GAAP and the related non-GAAP financial measures excluding the effect on the Company's results of these non-core, unusual, or non-recurring items. In addition to using such measures to evaluate results in a specific period, management evaluates such non-GAAP measures, and believes that investors may also evaluate such measures, because such measures may provide more complete and consistent comparisons of the Company's, and its segments', operational performance on a period-over-period historical basis and, as a result, provide a better indication of expected future trends.

Non-GAAP Debt Measure

Eastman from time to time evaluates and discloses to investors and securities and credit analysts the non-GAAP debt measure "net debt", which management defines as total borrowings less cash and cash equivalents. Management believes this metric is useful to investors and securities and credit analysts to provide them with information similar to that used by management in evaluating the Company's overall financial position, liquidity, and leverage and because management believes investors, securities analysts, credit analysts and rating agencies, and lenders often use a similar measure to assess and compare companies' relative financial position and liquidity.

Non-GAAP Measures in this Annual Report

The following non-core items are excluded by management in its evaluation of certain earnings results in this Annual Report:

•Asset impairments, restructuring, and other charges, net;

•Cost of sales impact from restructuring activities;

•Mark-to-market pension and other postretirement benefit plans gains and losses resulting from the changes in discount rates and other actuarial assumptions and the difference between actual and expected returns on plan assets during the period;

•Environmental and other costs from previously divested or non-operational sites and product lines; and

•Net gain on divested business.

The following unusual items are excluded by management in its evaluation of certain earnings results in this Annual Report:

•Steam line incident (insurance proceeds) costs, net; and

•Income tax expense associated with a previously divested business.

As described above, the alternative non-GAAP measure of debt, "net debt", is also presented in this Annual Report.

Non-GAAP Financial Measures - Non-Core and Unusual Items Excluded from Earnings

Below is the calculation of the "Other components of post-employment (benefit) cost, net" that are not included in the above non-core item "mark-to-market pension and other postretirement benefits loss (gain), net" and that are included in the non-GAAP results.

Below is the calculation of the MTM pension and other post-retirement benefits (gain) loss disclosed above.

(1)Actuarial (loss) gain resulted primarily from the change in discount rates from the prior year and changes in other actuarial assumptions.

For more detail about MTM pension and other postretirement benefit plans net gains and losses, including actual and expected return on plan assets and the components of the net gain or loss, see "Critical Accounting Estimates - Pension and Other Postretirement Benefits" above, and Note 11, "Retirement Plans", "Summary of Changes - Actuarial (gain) loss, Actual return on plan assets, and Reserve for third party contributions", and "Summary of Benefit Costs and Other Amounts Recognized in Other Comprehensive Income - Mark-to-market pension and other postretirement benefits (gain) loss, net" to the Company's consolidated financial statements in Part II, Item 8 of this Annual Report.

This MD&A includes the effect of the foregoing on the following GAAP financial measures:

•Gross profit,

•Other components of post-employment (benefit) cost, net,

•Other (income) charges, net,

•EBIT,

•Provision for income taxes,

•Net earnings attributable to Eastman,

•Diluted EPS, and

•Total borrowings.

Other Non-GAAP Financial Measures

Adjusted Tax Rate and Provision for Income Taxes

In interim periods, Eastman discloses non-GAAP earnings with an adjusted effective tax rate and a resulting adjusted provision for income taxes using the Company's forecasted tax rate for the full year as of the end of the interim period. The adjusted effective tax rate and resulting adjusted provision for income taxes are equal to the Company's projected full year effective tax rate and provision for income taxes on earnings excluding non-core, unusual, or non-recurring items for completed periods. The adjusted effective tax rate and resulting adjusted provision for income taxes may fluctuate during the year for changes in events and circumstances that change the Company's forecasted annual effective tax rate and resulting provision for income taxes excluding non-core, unusual, or non-recurring items. Management discloses this adjusted effective tax rate, and the related reconciliation to the GAAP effective tax rate, to provide investors more complete and consistent comparisons of the Company's operational performance on a period-over-period interim basis and on the same basis as management evaluates quarterly financial results to provide a better indication of expected full year results.

Alternative Non-GAAP Cash Flow Measures

In addition to the non-GAAP measures presented in this Annual Report and other periodic reports, management may occasionally evaluate and disclose to investors and securities analysts the non-GAAP measure cash provided by or used in operating activities excluding certain non-core, unusual, or non-recurring sources or uses of cash or including cash from or used by activities that are managed as part of core business operations ("adjusted cash provided by or used in operating activities") when analyzing, among other things, business performance, liquidity and financial position, and performance-based compensation. Management has used this non-GAAP measure in conjunction with the GAAP measure cash provided by or used in operating activities because it believes it is an appropriate metric to evaluate the cash flows from Eastman's core operations that are available for organic and inorganic growth initiatives and because it allows for a more consistent period-over-period presentation of such amounts. In its evaluation, management generally excludes the impact of certain non-core and unusual activities and decisions of management that it does not consider core, ongoing components of operations and the decisions to undertake or not to undertake such activities may be made irrespective of the cash generated from operations, and generally includes cash from or used in activities that are managed as operating activities and in business operating decisions. Management has disclosed this non-GAAP measure and the related reconciliation to investors, securities analysts, credit analysts and rating agencies, and lenders to allow them to better understand and evaluate the information used by management in its decision-making processes and because management believes investors and securities analysts use similar measures to assess Company performance, liquidity, and financial position over multiple periods and to compare these with other companies.

From time to time, Eastman may evaluate and disclose to investors and securities analysts an alternative non-GAAP measure of "free cash flow", which management defines as net cash provided by or used in operating activities less the amount of net capital expenditures (typically the GAAP measure additions to properties and equipment, net of government incentives). In addition, Eastman may disclose to investors and securities analysts an alternative non-GAAP measure of "free cash flow yield", which management defines as annual free cash flow divided by the Company's market capitalization, and "free cash flow conversion", which management defines as annual free cash flow divided by adjusted net income. Management believes these metrics can be useful to investors and securities analysts in comparing cash flow generation with that of peer and other companies.

Alternative Non-GAAP Earnings Measures

From time to time, Eastman may also disclose to investors and securities analysts the non-GAAP earnings measures "Adjusted EBIT Margin", "Adjusted EBITDA", "Adjusted EBITDA Margin", "Return on Invested Capital" (or "ROIC"), and "Adjusted ROIC". Management defines Adjusted EBIT Margin as the GAAP measure EBIT adjusted to exclude the same non-core, unusual, or non-recurring items as are excluded from the Company's other non-GAAP earnings measures for the same periods divided by the GAAP measure sales revenue in the Company's Consolidated Statement of Earnings, Comprehensive Income and Retained Earnings for the same periods. Adjusted EBITDA is EBITDA (net earnings before interest, taxes, depreciation and amortization) adjusted to exclude the same non-core, unusual, or non-recurring items as are excluded from the Company's other non-GAAP earnings measures for the same periods. Adjusted EBITDA Margin is Adjusted EBITDA divided by the GAAP measure sales revenue in the Company's Consolidated Statement of Earnings, Comprehensive Income and Retained Earnings for the same periods. Management defines ROIC as net earnings plus interest expense after tax divided by average total borrowings plus average stockholders' equity for the periods presented, each derived from the GAAP measures in the Company's financial statements for the periods presented. Adjusted ROIC is ROIC adjusted to exclude from net earnings the same non-core, unusual, or non-recurring items as are excluded from the Company's other non-GAAP earnings measures for the same periods. Management believes that Adjusted EBIT Margin, Adjusted EBITDA, Adjusted EBITDA Margin, ROIC, and Adjusted ROIC are useful as supplemental measures in evaluating the performance of and returns from Eastman's operating businesses, and from time to time uses such measures in internal performance calculations. Further, management understands that investors and securities analysts often use similar measures of Adjusted EBIT Margin, Adjusted EBITDA, Adjusted EBITDA Margin, ROIC, and Adjusted ROIC to compare the results, returns, and value of the Company with those of peer and other companies.