In 1999 the Beijing Sinnet Digital Technology Co., Ltd. was founded.
In 2000 Sinnet was authorized to operate international networking of computer information service (ISP service qualification).
In 2001 Sinnet obtained the People's Republic of China Telecom and Information Service Business License
In 2002 Sinnet participated in the work of re-qualification of weaker qualifications, being positioned from the secondary integrated wiring qualification to the Building Intelligent Engineering Contracting Secondary Qualification.
In 2002 Sinnet built its own Donghuan B2 Internet Data Center, and took the lead in carrying out IDC business in Beijing market;