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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 20 - F ( Mark One ) ㅁ REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR ( 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 : 001-38878 So - Young International 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 E , Ronsin Technology Center Chaoyang District , Beijing People's Republic of China ( Address of principal executive offices ) Min Yu , Chief Financial Officer Tower E , Ronsin Technology Center , Chaoyang District , Beijing People's Republic of China Phone : +86 10 5269 9283 Email : yumin@soyoung.com ( Name , Telephone , Email and / or Facsimile number and Address of Company Contact Person ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act : Title of Each Class American depositary shares , 13 of which represent 10 Class A ordinary shares Class A ordinary shares , par value US $ 0.0005 per share * * Not for trading , but only in connection with the listing on the Nasdaq Global Market of American depositary shares . Trading Symbol SY Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : Name of Each Exchange On Which Registered The Nasdaq Stock Market LLC ( The Nasdaq Global Market ) None ( Title of Class )