As filed with the U.S. Securities and Exchange Commission on March 27, 2024. Registration No. 333-275197 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-1 AMENDMENT NO.5 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 RAYTECH HOLDING LIMITED (Exact name of registrant as specified in its charter) British Virgin Islands 3630 N/A (State or Other Jurisdiction of Incorporation or Organization) Unit 609, 6/F, Nan Fung Commercial Centre, No.19 Lam Lok Street, Kowloon Bay, Hon ...