EXHIBIT 23.2
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement onForm S-8 of our report dated April 15, 2013 relating to the consolidated financial statements, and financial statement schedule of Quest Resource Holding Corporation, appearing in Quest Resource Holding Corporation’s Transition Report onForm 10-K for the transition period from July 1, 2012 to December 31, 2012.
| /s/ Semple, Marchal & Cooper |
| Phoenix, Arizona |
| December 30, 2013 |
