Quest Resource Holding Corporation to Report First Quarter 2025 Financial Results and Host Earnings Call on May 12, 2025

Management will host a conference call that same day at 5:00 PM ET to review the Company's financial results and business outlook. Investors interested in participating on the live call can dial 877-545-0320 within the U.S. or 973-528-0002 from abroad, referencing access code: 475107. Investors can also access the call online through a listen-only webcast on the investor relations section of Quest's website at http://investors.qrhc.com/.

The webcast, which may include forward-looking information, will be archived on the Quest investor relations website for at least 90 days. A telephonic playback of the conference call will be available by calling 877-481-4010 within the U.S. and 919-882-2331 from abroad. The replay passcode is 52400. The telephonic playback will be available approximately 3 hours after the conference ends on Monday, May 12, 2025, continuing through 11:59 PM ET on Monday, May 26, 2025.

About Quest Resource Holding Corporation

Quest is a national provider of waste and recycling services that empower larger businesses to excel in achieving their environmental and sustainability goals and responsibilities. Quest delivers focused expertise across multiple industry sectors to build single-source, client-specific solutions that generate quantifiable business and sustainability results. Addressing a wide variety of waste streams and recyclables, Quest provides information and data that tracks and reports the environmental results of Quest's services, gives actionable data to improve business operations, and enables Quest's clients to excel in their business and sustainability responsibilities.

For more information, visit www.qrhc.com.

Investor Relations Contact:

Three Part Advisors, LLC - Joe Noyons • 817.778.8424