POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned Executive Vice President,
Industrial, of Covia Holdings Corporation, a Delaware corporation ("Company"), in connection
with the preparation and filing of reports on Form 3, 4 and 5 (as well as applications for EDGAR
filer identification numbers and any other reports required under Section 16(a) of the Securities
Exchange Act of 1934) and Form 144, if required under the Securities Act of 1933, on my behalf
including, but not limited to, those cases where time is short or I am unavailable to review the
form, hereby constitute and appoint Chadwick P. Reynolds, Erin M. Burke, Gregory S. Harvey
and Gregory J. Dziak, and each of them (with full power to each of them to act alone), the
undersigned's true and lawful attorneys-in-fact and agents, for the undersigned and on the
undersigned's behalf and in the undersigned's name, place and stead, in any and all capacities, to
prepare, sign, and file with the Securities and Exchange Commission reports on Form 3, 4 and 5
(as well as applications for EDGAR filer identification numbers and any other reports required
under Section 16(a) of the Securities Exchange Act of 1934) and Form 144, if required under the
Securities Act of 1933, together with all amendments thereto, with all exhibits and any and all
documents required to be filed with respect thereto with the Securities and Exchange
Commission and any other regulatory authority granting unto such attorneys-in-fact, and each of
them, full power and authority to do and perform each and every act and thing requisite and
necessary to be done in order to effectuate the same as fully to all intents and purposes as the
undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-
in-fact and agents, or any of them, might lawfully do or cause to be done by virtue hereof. The
undersigned agrees that each attorney-in-fact may rely entirely on information furnished orally or
in writing by or at the direction of the undersigned to such attorney-in-fact. This Power of
Attorney shall remain in full force and effect until the undersigned is no longer required to file
Form ID, Form 3, Form 4, Form 5 and Form 144 (including amendments thereto) with respect to
the undersigned's holdings of and transactions in securities issued by the Company, unless
earlier revoked by the undersigned in a signed writing delivered to the attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has signed this Power of Attorney as of December 6,
2019.
_/s/ Paolo Gennari_______________
Paolo Gennari
Executive Vice President, Industrial
Exhibit 24
