DraftFCB will work with Initiative, its Interpublic stablemate, which will retain Haier's media planning and buying business.
However, the company is believed to have dropped two other Rinaldi-appointed agencies - Burson Marsteller and Star Group.
DraftFCB will be the third agency to work on Haier's Olympics campaign in less than a year, after DDB and Young & Rubicam. But Gary Tse, the DraftFCB Greater China chief executive, said: "What's happened is in the past. I have complete confidence in delivering a superb campaign."