Exhibit 99.1

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 Class A ordinary shares, par value of $0.00001 per share, of RLX Technology Inc., a Cayman Islands exempted company, 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 13, 2023.

Ying (Kate) Wang
/s/ Ying (Kate) Wang
Leo Valley Holding Limited
By:	/s/ Ying (Kate) Wang
Name: Ying (Kate) Wang
Title: Director
BJ BJ Limited
By:	/s/ Ying (Kate) Wang
Name: Ying (Kate) Wang
Title: Director
Relx Holdings Limited
By:	/s/ Ying (Kate) Wang
Name: Ying (Kate) Wang
Title: Director
Long (David) Jiang
/s/ Long (David) Jiang
Longtian Holding Limited
By:	/s/ Long (David) Jiang
Name: Long (David) Jiang
Title: Director
Yilong Wen
/s/ Yilong Wen
StarryInv Holding Limited
By:	/s/ Yilong Wen
Name: Yilong Wen
Title: Director