Exhibit A

Joint Filing Agreement

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the common stock, par value of $0.0001 per share, of TuSimple Holdings Inc., a Delaware corporation, and that this Agreement may be included as an exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument. 

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

	SUN DREAM INC
By:	/s/ Charles Guowei Chao
Name:	Charles Guowei Chao
Title:	Sole Director

	Sina Corporation
By:	/s/ Bonnie Yi Zhang
Name:	Bonnie Yi Zhang
Title:	Chief Financial Officer

	Sina Group Holding Company Limited
By:	/s/ Charles Guowei Chao
Name:	Charles Guowei Chao
Title:	Sole Director

	New Wave MMXV Limited
By:	/s/ Charles Guowei Chao
Name:	Charles Guowei Chao
Title:	Sole Director

Charles Guowei Chao

/s/ Charles Guowei Chao