Exhibit

We hereby consent to the incorporation by reference in the Registration Statements on Forms S‑8 (Nos. 333-13175, 333-13173, 333-59832, 333-70710, 333-114958, 333-188448, 333-211203, and 333-217616) of Harsco Corporation of our report dated February 21, 2019 relating to the financial statements, financial statement schedule, and the effectiveness of internal control over financial reporting, which appears in this Form 10‑K.