21Vianet and Microsoft Extend Commercial Operator Agreement on Public Cloud Services

21Vianet Group, Inc.

("21Vianet" or the "Company"), a leading carrier-neutral Internet data center services provider in China, today announced that the 21Vianet and Microsoft Corporation

("Microsoft") have extended the commercial operator agreement to provide Microsoft's premier commercial cloud services – Windows Azure and Office 365 in China. The renewal agreement extends the term of the Microsoft China services commercial operator agreement by four years until December 31, 2018. Pursuant to the renewal agreement, 21Vianet will continue to fully operate and further expand Windows Azure and Office 365 service offerings in China to support the anticipated growth during the effective period of the renewal agreement. Mr. Josh Chen, Chairman and CEO of 21Vianet, stated, "As China's premier infrastructure provider and cloud enabler, we are extremely excited to extend this important partnership with Microsoft. Since 2012, teams from Microsoft and 21Vianet have worked diligently and seamlessly in the preparation, public preview and commercial launch of both Windows Azure and Office 365 services in China. Today, we are proud to be recognized not only as the first and only international cloud computing platform commercially available in China, but also as the provider that offers security, reliability and value to a wide variety of customers. As the growth momentum for cloud services remains exceptionally strong, we believe this partnership extension marks another significant step in solidifying the cooperation between 21Vianet and Microsoft as well as strengthening our leadership role in China's cloud computing services market." Ralph Haupter, corporate vice president and CEO for Microsoft Greater China, said: "We are very pleased to have extended a successful relationship with 21Vianet, following more than 2 years of close collaboration in bringing Microsoft public cloud services to the Chinese market. Both Azure and Office 365 have strong momentum in the market with broad adoption by both local Chinese companies and multinational corporations. Customers value Azure and Office 365's enterprise-grade benefits such as security, flexibility, reliability, scalability, openness, cost efficiency and deployment speed. We remain firmly committed to the Chinese cloud market, and we believe this extended partnership with 21Vianet will serve as a strong foundation for both companies to further contribute to the development of the cloud computing ecosystem throughout China."