EXHIBIT 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that a single Schedule 13G (or any amendment thereto) relating to the Class A ordinary shares of XPENG Inc. shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13G. Each of the undersigned acknowledges that each shall be responsible for the timely filing of amendments with respect to information concerning such undersigned reporting person, and for the completeness and accuracy of the information concerning such undersigned reporting person, contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that such reporting person knows or has reason to believe that such information is inaccurate. This Agreement may be executed in any number of counterparts and all of such counterparts taken together shall constitute one and the same instrument.

Date: February 16, 2021

TMT General Partner Ltd.
By:	/s/ LIU, Qin
	Name: LIU, Qin Title: Director
Morningside China TMT GP IV, L.P.
By:	TMT General Partner Ltd., as its general partner
By:	/s/ LIU, Qin
	Name: LIU, Qin
	Title: Director
Morningside China TMT Fund IV, L.P.
By:	Morningside China TMT GP IV, L.P., as its general partner
By:	TMT General Partner Ltd., as its general partner
By:	/s/ LIU, Qin
	Name: LIU, Qin
	Title: Director
Morningside TMT Holding IV Limited
By:	/s/ TANG, Miu Yee
	Name: TANG, Miu Yee
	Title: Director
Morningside China TMT Special Opportunity Fund II, L.P.
By:	Morningside China TMT GP IV, L.P., as its general partner
By:	TMT General Partner Ltd., as its general partner
By:	/s/ LIU, Qin
	Name: LIU, Qin
	Title: Director
Morningside Special IV Hong Kong Limited
By:	/s/ TANG, Miu Yee
	Name: TANG, Miu Yee Title: Director
5Y Capital GP Limited
By:	/s/ LIU, Qin
	Name: LIU, Qin Title: Director

1

Evolution Fund I Co-investment, L.P.
By:	5Y Capital GP Limited, as its general partner
By:	/s/ LIU, Qin
	Name: LIU, Qin
	Title: Director

Evolution Special Opportunity Fund I, L.P.
By:	5Y Capital GP Limited, as its general partner
By:	/s/ LIU, Qin
	Name: LIU, Qin
	Title: Director
Shanghai Xingpan Investment Management Consulting Co., Ltd.
By:	/s/ XUE, Qiong
	Name: XUE, Qiong
	Title: Director
Shanghai Chenxi Venture Capital Center (Limited Partnership)
By:	Shanghai Xingpan Investment Management Consulting Co., Ltd., as its general partner
By:	/s/ XUE, Qiong
	Name: XUE, Qiong
	Title: Director
CX TMT Holding IV Limited
By:	/s/ TANG, Miu Yee
	Name: TANG, Miu Yee
	Title: Director

2