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Table of Contents ( Mark One ) ☐ UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 20 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR 12 ( g ) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 . OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 ☐ OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report_ For the transition period from to Commission file number : 001-38923 GSX Techedu Inc. ( Exact name of Registrant as specified in its charter ) N / A ( Translation of Registrant's name into English ) Cayman Islands ( Jurisdiction of incorporation or organization ) Tower C , Beyondsoft Building , 7 East Zone , 10 Xibeiwang East Road Haidian District , Beijing 100193 People's Republic of China ( Address of principal executive offices ) Nan Shen , Chief Financial Officer E - mail : shennan@baijia.com Tower C , Beyondsoft Building , 7 East Zone , 10 Xibeiwang East Road Haidian District , Beijing 100193 People's Republic of China Telephone : +86 10 8282-6826 ( Name , Telephone , E - mail and / or Facsimile number and Address of Company Contact Person ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act :