Exhibit A

JOINT FILING AGREEMENT

This Joint Filing Agreement (this “Agreement”) hereby confirms the agreement by and among all of the undersigned that the Schedule 13G/A to which this Agreement is attached as Exhibit A, with respect to the beneficial ownership of the undersigned shares of common stock of One Stop Systems, Inc., is being filed on behalf of each of the undersigned. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Date: July 31, 2026			By:	/s/ Vladimir Galkin
				Vladimir Galkin
Date: July 31, 2026			By:	/s/ Angelica Galkin
				Angelica Galkin
				ANGELICA GALKIN REVOCABLE TRUST
Date: July 31, 2026						/s/ Angelica Galkin
				By:		Angelica Galkin
				Title:		Trustee