Investor Presentaiton

Highlights ESOL INTEGRATION VALIDATES DEAL RATIONALE AND VALUE CREATION OPPORTUNITY Integration Milestones о о Take Control Day 1 Address Critical Path Items о о о Launch Assessment Teams Deploy Enablers and Address Structure Sequence Value Actions о Launch Value Programs o Build Capabilities 30+ workstreams aimed at validating rationale, deploying foundational elements, improving processes, and creating value programs Implemented new organizational structure to improve business performance, enable better decision making, and drive accountability ✰ Conducted site-specific diagnostics and developed facility-level improvement plans across ESOL Launched major process-oriented initiatives to improve the customer experience Implemented organization-wide operations, compliance, and EH&S improvements Stabilized IT operating systems Developed long-term plans for value delivery Improvement benefits tracking ahead of plan; now targeting $8 million in 2020 © 2020 Harsco Corporation. All Rights Reserved. This document and the information set forth herein are the property of Harsco Corporation. HARSCO 20

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