Investor Presentaiton

Q3 2020 RAIL SUMMARY RESULTS $ in millions Q3 2020 Q3 2019 Q2 2020 ADJUSTED EBITDA BRIDGE¹ $ in millions 14.2 15 10 Revenues, as reported 93 75 82 5 Operating Income - GAAP 4 12 6 Adjusted EBITDA1 5 14 10 Adjusted EBITDA 5.8% 19.1% 12.2% Margin¹ Free Cash Flow (YTD) (22) (45) (16) nmf = not meaningful. (1) Excludes unusual items; see tables at end of presentation for GAAP to non-GAAP reconciliations. (1.5) 2.4 5.4 (8.5) (1.2) 0 Q3 2019 Machine Sales Aftermarket Contract Parts/ Services Protran SG&A Other Q3 2020 Revenue growth Y/Y and Q/Q attributable to increased equipment volumes Adjusted EBITDA change mainly reflects less favorable product mix and lower aftermarket and technology volumes Backlog remains strong at $452 million © 2020 Harsco Corporation. All Rights Reserved. This document and the information set forth herein are the property of Harsco Corporation. HARSCO 8

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