SB Investment Advisers SC 13G DiDi Global / SB INVESTMENT ADVISERS ownership change

Exhibit 99

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13G. Each of them is responsible for the timely filing of such statement 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.

IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of February 14, 2022.

SB Investment Advisers (UK) Limited
By:	/s/ Spencer Collins
Name:	Spencer Collins
Title:	General Counsel
SoftBank Vision Fund LP
By:	SB Investment Advisers (UK) Limited, its Manager
By:	/s/ Spencer Collins
Name:	Spencer Collins
Title:	General Counsel
SVF Holdings (UK) LLP
By:	SB Investment Advisers (UK) Limited, its Manager
By:	/s/ Spencer Collins
Name:	Spencer Collins
Title:	General Counsel
SVF Holdings (Singapore) Pte. Ltd.
By:	SB Investment Advisers (UK) Limited, its Manager
By:	/s/ Rhonda Gornitsky
Name:	Rhonda Gornitsky
Title:	Director

SVF XKI Subco (Singapore) Pte. Ltd.
By:	SB Investment Advisers (UK) Limited, its Manager
By:	/s/ Rhonda Gornitsky
Name:	Rhonda Gornitsky
Title:	Director