Harsco Corporation Investor Presentation — May 2019

Document content

© 2019 Harsco Corporation. All Rights Reserved. This document and the information set forth herein are the property of Harsc o Corporation.Investor Presentation

Acquisition of Clean Earth

Divestiture of Air -X-Changers

Q1 2019 Results & Outlook

May 9, 2019© 2019 Harsco Corporation. All Rights Reserved. This document and the information set forth herein are the property of Harsc o Corporation.

2SAFE HARBOR STATEMENT

Conference Call and Access to Information

More information on Harsco's quarterly earnings, acquisition of Clean Earth and sale of Air -X-Changers, including the Company’s press releases issued today and this presentation, is available on the Investor Relations portion of Harsco’s

website. Company management will discuss the Company's financial performance and these transactions during a conference call today at 8:30 a.m. (ET). Both the presentation and access to the call are available at

http://investors.harsco.com . A replay can also be accessed on the site for up to two weeks after the call.

Forward- Looking Statements

The Company’s presentation contains forward- looking statements based on management’s current expectations, estimates and project ions. The nature of the Company's business and the many countries in which it operates subject it to

changing economic, competitive, regulatory and technological conditions, risks and uncertainties. In accordance with the "saf e harbor" provisions of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of

1934, the Company provides the following cautionary remarks regarding important factors that, among others, could cause futur e results to differ materially from the results contemplated by forward- looking statements, including the

expectations and assumptions expressed or implied herein. This presentation contains forward- looking statements concerning the c losing of the agreement to purchase Clean Earth, the financing that Harsco intends to obtain to finance the

purchase price and the anticipated benefits of the acquisition as well as the closing of the agreement to sell Harsco Industr ialAir-X-Changers and the anticipated benefits of the sale. In addition, forward- looking statements contained herein

could include, among other things, statements about management's confidence in and strategies for performance; expectations f or new and existing products, technologies and opportunities; and expectations regarding growth, sales, cash

flows, and earnings. Forward- looking statements can be identified by the use of such terms as "may," "could," "expect," "anticipate," "intend," "believe," "likely," "estimate," "outlook," "plan" or other comparable terms. Factors that could cause