POWER OF ATTORNEY


The undersigned, a director and (or) officer of
Harsco Corporation, a Delaware corporation
(the "Company") appoints the following individuals
with full power to each of them to act alone, as his
or her true and lawful attorneys-in-fact and agents
to execute and file on behalf of the undersigned all
Forms 3, 4 and 5 and any amendments thereto that
the undersigned may be required to file with the
Securities and Exchange Commission, and any stock
exchange or similar authority, as a result of the
undersigned's ownership of or transactions in
securities of the Company. The authority
of the following individuals under the Power of
Attorney shall continue until the undersigned is no
longer required to file Forms 3, 4 and 5 with regard
to the undersigned's ownership of or transactions
in securities of the Company, unless earlier revoked
in writing. The undersigned acknowledges that the
following individuals are not assuming any of the
undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

The following employees of the Company:

Senior Vice President and General Counsel, Chief
Compliance Officer & Corporate Secretary
Assistant General Counsel & Assistant Corporate Secretary
Corporate Governance Associate

This authorization shall supersede all prior
authorizations to act for the undersigned with
respect to securities of the Company in these
matters

IN WITNESS WHEREOF, I have hereunto set my hand
this 11th day of August 2021.

        Signature

        Anshooman Aga