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Table of Contents ㅁ 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 . For the transition period from to Commission file number 001-38198 BEST Inc. ( Exact name of Registrant as specified in its charter ) Cayman Islands ( Jurisdiction of incorporation or organization ) 2nd Floor , Block A , Huaxing Modern Industry Park No. 18 Tangmiao Road , Xihu District , Hangzhou Zhejiang Province 310013 People's Republic of China ( Address of principal executive offices ) Ms. Gloria Fan , Chief Financial Officer Telephone : + 86-571-88995656 Email : ir@best-inc.com 2nd Floor , Block A , Huaxing Modern Industry Park No. 18 Tangmiao Road , Xihu District , Hangzhou Zhejiang Province 310013 People's Republic of China ( 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 : Title of each class Class A ordinary shares , par value $ 0.01 per share * American Depositary Shares , each representing one Class A ordinary Trading Symbol ( s ) BEST share Name of each exchange on which registered New York Stock Exchange , Inc. * Not for trading , but only in connection with the registration of American Depositary Shares representing such Class A ordinary shares pursuant to the requirements of the Securities and Exchange Commission . Securities registered or to be registered pursuant to Section 12 ( g ) of the Act . None Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act . None Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report . 250,648,452 Class A ordinary shares were outstanding as of December 31 , 2020 ( including 6,565,542 Class A ordinary shares issued to the depositary bank of the Issuer and reserved for future issuances of ADSS upon exercise or vesting of awards granted under the Issuer's share incentive plans ) 94,075,249 Class B ordinary shares were outstanding as of December 31 , 2020 47,790,698 Class C ordinary shares were outstanding as of December 31 , 2020 Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . □ Yes No