Chung, who was ECD in Hong Kong before moving to Shanghai, left the agency at the end of August, while Li will leave on September 16 followed by Chan at month's end.
Meanwhile, Grey's Shanghai GM, Kenny Wong, who was also tipped to be leaving, told Media he was reviewing his future with the agency. Grey's newly-installed China and Hong Kong president and CEO Dennis Wong has appointed Benson Lam, who previously worked exclusively on Volkswagen, as Chung's replacement.
Grey has also named Taiwanese national Tammy Sheu general manager in Beijing, taking over Li's management and account responsibilities. Li led the search for his replacement, with Sheu coming to the job with 14 years experience, including Ogilvy China and Taiwan stints.