Westlake Growth & Investment Strategy

Reconciliation of Westlake EBITDA to Net Income and to Cash Flow from Operating Activities 110 Net cash provided by operating activities Changes in operating assets and liabilities and other Deferred income taxes Net income Less: Other income, net Interest expense Benefit from (provision for) income taxes Income from operations Add: Depreciation and amortization Other income, net EBITDA 2021 2012 (In millions of dollars) 2,394 S 624 (301) (244) (23) 2,070 386 53 13 (176) (43) (607) (199) 2,800 615 840 145 53 13 $ 3,693 $ 773 This presentation includes the non-GAAP measure EBITDA. A reconciliation to net income and to cash flow from operating activities is included above. Westlake

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