CUSIP No: 98973P200

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 13, 2024

MSD Partners, L.P.			MSD Credit Opportunity Master Fund, L.P.
By:	MSD Partners (GP), LLC		By:	MSD Partners, L.P.
Its:	General Partner		Its:	Investment Manager
By:	/s/ Robert K. Simonds		By:	MSD Partners (GP), LLC
Name:	Robert K. Simonds		Its:	General Partner
Title:	Authorized Signatory
			By:	/s/ Robert K. Simonds
			Name:	Robert K. Simonds
			Title:	Authorized Signatory

Gregg R. Lemkau

By:	/s/ Gregg R. Lemkau
Name:	Gregg R. Lemkau