Investor Presentaiton

RECONCILIATION OF NON-GAAP MEASURES HARSCO CORPORATION RECONCILIATION OF PROJECTED FREE CASH FLOW TO PROJECTED CASH PROVIDED (USED) BY OPERATING ACTIVITIES (Unaudited) Projected Three Months Ending December 31 (In thousands) Net cash provided by operating activities Less capital expenditures Plus total proceeds from asset sales and capital expenditures for strategic ventures Free cash flow 2020 Low High 50 60 (31) (37) 1 2 $ 20 $ 25 The Company's management believes that Free cash flow, which is a non-GAAP financial measure, is meaningful to investors because management reviews cash flows generated from operations less capital expenditures net of asset sales proceeds and transaction-related expenditures and income taxes for planning and performance evaluation purposes. It is important to note that free cash flow does not represent the total residual cash flow available for discretionary expenditures since other non-discretionary expenditures, such as mandatory debt service requirements and settlements of foreign currency forward exchange contracts, are not deducted from this measure. This measure should be considered in addition to, rather than as a substitute for, other information provided in accordance with GAAP. © 2020 Harsco Corporation. All Rights Reserved. This document and the information set forth herein are the property of Harsco Corporation. HARSCO 46

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