AGREEMENT OF JOINT FILING

Pursuant to Rule 13d-1(k)(1) of the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, each of the undersigned agrees that the statement on Schedule 13G filed herewith shall be filed on behalf of each of the undersigned.

	MUBADALA DEVELOPMENT COMPANY PJSC

	February 11, 2016
	Date

	/s/ Samer Halawa
	Signature

	Samer Halawa / Attorney in Fact
	Name/Title


	MDC CAPITAL LLC

	February 11, 2016
	Date

	/s/ Rodney Cannon	/s/ Hani Barhoush
	Signature

	Rodney Cannon / Director	Hani Barhoush / Director
	Name/Title


	MDC CAPITAL (CAYMAN) LIMITED, AS TRUSTEE FOR FIFTY FIRST INVESTMENT COMPANY LLC

	February 11, 2016
	Date

	/s/ Rodney Cannon	/s/ Hani Barhoush
	Signature

	Rodney Cannon / Director	Hani Barhoush / Director
	Name/Title