Exhibit 99.1

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 13G dated February __, 2019 (including amendments thereto) with respect to the Common Stock of Rimini Street, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Date: February __, 2019	KINGSTOWN CAPITAL MANAGEMENT L.P.
	By:	Kingstown Management GP LLC
		its general partner
	By:	/s/ Michael Blitzer
		Michael Blitzer Managing Member

KINGSTOWN PARTNERS II, L.P.
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KTOWN, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGFISHERS, LP
By:	Kingstown Capital Partners, LLC
	its general partner
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN MANAGEMENT GP LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN CAPITAL PARTNERS, LLC
By:	/s/ Michael Blitzer
	Michael Blitzer Managing Member

KINGSTOWN PARTNERS MASTER LTD.
By:	/s/ Michael Blitzer
	Michael Blitzer Director

/s/ Michael Blitzer

MICHAEL BLITZER

/s/ Guy Shanon

GUY SHANON