Until a successor is found, BBDO's international president Jean Michel Goudard will run the network, assisted by deputy chairman Tom Kao and CFO Francis Phuah.
So, who chose to run the region from Taipei, was widely expected to resign in the past six months. "I've always wanted to work according to my own principles of what I see is fair and good for the company, but starting from early this year, I have had differences of opinion with the worldwide BBDO office," he told Media.
So's resignation is the second of a regional Omnicom agency chief in as many weeks, following DDB Asia chairman and China chief Aaron Lau, who left the agency at press-time after 16 years.