21Vianet Group, Inc. Announces the Pricing of RMB1 Billion Bonds

21Vianet Group, Inc. Announces the Pricing of RMB1 Billion Bonds

BEIJING, March 15, 2013 (GLOBE NEWSWIRE) -- 21Vianet Group, Inc. (Nasdaq:VNET)
("21Vianet" or the "Company"), the largest carrier-neutral Internet data
center services provider in China, today announced that the Company has priced
the offering of RMB1 billion (approximately equivalent to US$160.9 million^1)
in aggregate principal amount of bonds due 2016 with a coupon rate of 7.875%
per annum (the "Bonds"). The Bonds are denominated in RMB and are being
offered outside the United States in reliance on Regulation S under the
Securities Act of 1933, as amended.

Interest on the Bonds is payable semi-annually in arrears on, or nearest to,
March 22 and September 22 in each year, beginning on September 22, 2013. The
Bonds are not rated.

The Company intends to use the Bonds proceeds for data center expansion and
other general corporate purposes.

The Bonds has been approved in principle to be listed and quoted on the
Official List of the Singapore Exchange Securities Trading Limited (the
"SGX-ST"). Admission of the Bonds to the Official List of SGX-ST is not to be
taken as an indication of the merits of the Company and its subsidiary or
affiliated entities or the Bonds.

Barclays Bank PLC acted as the sole global coordinator and joint Bookrunner
for the transaction. Other joint Bookrunners include CITIC Securities
Corporate Finance (HK) Limited, DBS Bank Ltd., and Wing Lung Bank Limited.

The Company expects to close the Bonds offering on or about March 22, 2013,
subject to the satisfaction of customary closing conditions.

This press release shall not constitute an offer to sell or a solicitation of
an offer to purchase any of the Bonds, and shall not constitute an offer,
solicitation or sale of the Bonds in any state or jurisdiction in which such
an offer, solicitation or sale would be unlawful.

This press release contains information about the pending offering of the
Bonds, and there can be no assurance that the offering will be completed.

About 21Vianet

21Vianet Group, Inc. is the largest carrier-neutral Internet data center
services provider in China. 21Vianet provides hosting and related services,
managed network services, cloud computing infrastructure services and content
delivery network services, improving the reliability, security and speed of
its customers' Internet connections through 21Vianet's Internet
infrastructure. Customers may locate their servers and networking equipment in
21Vianet's data centers and connect to China's Internet backbone through
21Vianet's extensive private fiber optic network. 

Safe Harbor Statement

This announcement contains forward-looking statements. These forward-looking
statements are made under the "safe harbor" provisions of the U.S. Private
Securities Litigation Reform Act of 1995. These statements can be identified
by terminology such as "will," "expects," "anticipates," "future," "intends,"
"plans," "believes," "estimates" and similar statements. Further information
regarding these and other risks is included in 21Vianet's reports filed with,
or furnished to the Securities and Exchange Commission. 21Vianet does not
undertake any obligation to update any forward-looking statement, except as
required under applicable law. All information provided in this press release
and in the attachments is as of the date of this press release, and 21Vianet
undertakes no duty to update such information, except as required under
applicable law.

^1 Based on the noon buying rate of RMB6.2145 to US$1.00 in New York City for
cable transfers in RMB as certified for customs purposes by the Federal
Reserve Board in effect as ofMarch 8, 2013.

CONTACT: 21Vianet Group, Inc.
         Joseph Cheng
         +86 10 8456 2121
         ICR, Inc.
         Jeremy Peruski
         +1 (646) 405-4922
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