世纪互联21Vianet Group, Inc. (VNET) 2011年年度报告「NASDAQ」.pdf

1、Table of Contents UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 20-F(Mark One)REGISTRATION STATEMENT PURSUANT TO SECTION 12(B)OR 12(G)OF THE SECURITIES EXCHANGE ACT OF 1934OR ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D)OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal y

2、ear ended December 31,2011.OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D)OF THE SECURITIES EXCHANGE ACT OF 1934OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(D)OF THE SECURITIES EXCHANGE ACT OF 1934Date of event requiring this shell company report For the transition period from to Commis

3、sion file number:001-35126 21Vianet Group,Inc.(Exact Name of Registrant as Specified in Its Charter)N/A(Translation of Registrants Name into English)Cayman Islands(Jurisdiction of Incorporation or Organization)M5,1 Jiuxianqiao East Road,Chaoyang DistrictBeijing,100016The Peoples Republic of China(Ad

4、dress of Principal Executive Offices)Mr.Shang-Wen Hsiao,President and Chief Financial Officer21Vianet Group,Inc.M5,1 Jiuxianqiao East Road,Chaoyang DistrictBeijing,100016The Peoples Republic of ChinaPhone:(86)10 8456-2121Facsimile:(86)10 8456-2619(Name,Telephone,E-mail and/or Facsimile Number and Ad

5、dress of Company Contact Person)Securities registered or to be registered pursuant to Section 12(b)of the Act:Title of each class Name of exchange on which registeredAmerican Depositary Shares,each representing six Class A ordinary shares,par value US$0.00001 per share NASDAQ Global MarketClass A or

6、dinary shares,par value US$0.00001 per share*Not for trading,but only in connection with the listing on the NASDAQ Global Market of the American Depositary Shares.Securities registered or to be registered pursuant to Section 12(g)of the Act:None(Title of Class)Securities for which there is a reporti