Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Laurie L. Latham, certify that:

1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of Quest Resource Holding Corporation.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: March 23, 2021	/s/ Laurie L. Latham
	Laurie L. Latham
	Senior Vice President and Chief Financial Officer
	(Principal Financial and Accounting Officer)