Exhibit 99.1

AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G

The undersigned hereby agree as follows:

(i) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is attached, and such Schedule 13G is filed on behalf of each of them; and

(ii) Each of them is responsible for the timely filing of such schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

Date: February 9, 2018

CD&R ALLIED HOLDINGS, L.P.	By: CD&R Associates VIII, Ltd., its general partner
	By:	/s/ Theresa A. Gore
		Signature
	Theresa A. Gore / Vice President, Treasurer and Assistant Secretary
	Name/Title

CD&R ASSOCIATES VIII, LTD.	By:	/s/ Theresa A. Gore
		Signature
	Theresa A. Gore / Vice President, Treasurer and Assistant Secretary
	Name/Title

CD&R ASSOCIATES VIII, L.P.	By: CD&R Investment Associates VIII, Ltd., its general partner
	By:	/s/ Theresa A. Gore
		Signature
	Theresa A. Gore / Vice President, Treasurer and Assistant Secretary
	Name/Title

CD&R INVESTMENT ASSOCIATES VIII, LTD.	By:	/s/ Theresa A. Gore
		Signature
	Theresa A. Gore / Vice President, Treasurer and Assistant Secretary
	Name/Title