Star Echo employs 318 people, with offices in Beijing, Guangzhou and Shanghai. Its clients include P&G, Amway China, Dongfeng Nissan and Warner Brothers.
The agency's unaudited revenues for the year ended 31 December 2006 were RMB37.2m (£2.45m), with gross assets at the same date of RMB46.9m (£3.09m).
Earlier this week, another WPP agency Mediaedge:cia acquired 100% of the issued share capital of media agency MediaX in Austria.
This was followed yesterday by Group M, also owned by WPP, agreeing to acquire a majority stake in Interactive Television Private Limited (Interactive TV) -- an Indian marketing agency that specialises in cinema advertising and marketing in multiplexes, malls and shopping chains. Its clients include Maruti, Microsoft, Coca-Cola and Bharti Airtel.
WPP said the investments are part of a strategy to develop its networks in fast-growing markets across the world.