A source close to the news said Chan will return to her home city of Hong Kong for a break before considering other career opportunities.
Chan joined Starcom Guangzhou initially as strategic planning director with key clients being including Mead Johnson, Pharma 999, San Miguel and China Resource - C'estbon Water.
Before Starcom, she worked for Motivator in Shanghai, which is now Havas Media.
As reported on 6 August, Lester Ng, MD of Starcom Beijing, has returned to ZenithOptimedia to take up the role of deputy MD at its Shanghai office.