As filed with the Securities and Exchange Commission on July 17, 2025. Registration No. 333-281530 | Cayman Islands | 2821 | Not Applicable | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. Employer | | incorporation or organization) | Classification Code Number) | Identification number) | 703, Block A, 1799 Wuzhong Road, Minhang District Shanghai, China, 200335 Tel: +86 574-62629970 (Address, including zip code, and telephone number, including area code, of Re ...