Table of Contents AMENDMENT NO. 4 TO FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Lucas GC Limited As filed with the Securities and Exchange Commission on October 27, 2023. Registration Statement No. 333-270107 (Exact name of Registrant as specified in its charter) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Cayman Islands 7370 Not Applicable (State or other jurisdiction of incorporation or organization) Not Applicable (Translation of Registrant's name into En ...