Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13(d)-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing with each other of the attached Statement on Schedule 13D and to all amendments to such Statement.

IN WITNESS WHEREOF, the undersigned hereby executed this Agreement as of this 5th day of June, 2017.

SINGAPORE TECHNOLOGIES TELEMEDIA PTE LTD
By:	/s/ Chan Jen Keet
	Name: Chan Jen Keet
	Title: Company Secretary
STT COMMUNICATIONS LTD
By:	/s/ Chan Jen Keet
	Name: Chan Jen Keet
	Title: Company Secretary
STT GDC PTE. LTD.
By:	/s/ Bruno Lopez
	Name: Bruno Lopez
	Title: Director