ChinaNet Online Holdings, Inc., through its subsidiaries, provides omni-channel advertising, precision marketing, and data analysis services in the People's Republic of China. The company offers Internet advertising, precision marketing, and related data and value added services through its Internet portals, including 28.com and liansuo.com that provide advertisers with tools to build sales channels in the form of franchisees, sales agents, distributors, and/or resellers; and distributes television shows comprising advertisements. The company is also involved in the technical services; and research and development, and other technical support services for the block chain business. ChinaNet Online Holdings, Inc. was founded in 2003 and is headquartered in Beijing, the People's Republic of China.