Exhibit 99.1

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 (i) to the joint filing, on behalf of each of them, of a statement on Schedule 13G (including amendments thereto) with respect to Class A ordinary shares par value of $0.0001 per share of Nano Labs Ltd, a Cayman Islands company; and (ii) that this agreement be included as Exhibit 99.1 to such joint filing. The undersigned acknowledge that each shall be responsible for the timely filing of any amendments to such joint filing and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others.

[Execution page follows.]

IN WITNESS WHEREOF, the undersigned have executed this agreement.

Date: February 13, 2023

Qifeng Sun
By:	/s/ Qifeng Sun
Star Spectrum Capital Ltd
By:	/s/ Qifeng Sun
	Name: Qifeng Sun
	Title: Director