Interpublic Group's Mediabrands has appointed Jimmy Poon to the new post of CEO of Mediabrands Ventures in China. Based in Shanghai, Poon will be responsible for directing Mediabrands' expansion in the country and will oversee China divisions of The Lab and marketing consultant unit Greenhaus. He will reporting to Matt Freeman, CEO Mediabrands Ventures. Previously Poon held positions with a number of shops within the Asia Pacific region, including DDB, Tribal DDB and Rapp Collins. "Jimmy has an extraordinary understanding of the market and will be a critical player in helping us accelerate our growth in China and across broader Asia Pacific," said Matt Freeman, CEO, Mediabrands Ventures.