Company:  21VIANET GROUP, INC. (VNET)
Form Type:  SC 13G
Filing Date:  7/21/2011 
CIK:  0001508475 
Address:  M5, 1JIUXIANQIAO EAST ROAD
Chaoyang District 
City, State, Zip:  Beijing,  100016 
Telephone:  (86 10) 8456-2121 
Last Trade
Last Trade: 
$9.30   		Change: 
-0.30 (-3.13%)  
Trade Time: 
04:00 PM EST   		Market Cap: 
$2.63B
Description of Business
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  FORM SC 13G
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