Exhibit 99.7

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of common stock, $0.001 par value per share, of ATRM Holdings, Inc., a Minnesota corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  August 16, 2016

Lone Star Value Investors, LP
By:	Lone Star Value Investors GP, LLC General Partner
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager

Lone Star Value Co-Invest I, LP
By:	Lone Star Value Investors GP, LLC General Partner
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager

Lone Star Value Investors GP, LLC
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Manager

Lone Star Value Management, LLC
By:	/s/ Jeffrey E. Eberwein
	Name:	Jeffrey E. Eberwein
	Title:	Sole Member

/s/ Jeffrey E. Eberwein

JEFFREY E. EBERWEIN