Exhibit A

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13G to which this Agreement is annexed as Exhibit A, and any amendments thereto, is and will be filed on behalf of each of them in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Date: February 11, 2022 

By:	/s/ Chunxiao Cui
Name:	Chunxiao Cui

Bofeng Holdings Limited
By:	/s/ Chunxiao Cui
Name:	Chunxiao Cui
Title:	Director