Jan 5 (Reuters) - IGM Financial Inc IGM.TO
* Acquires additonal 3.9% interest in market-leading China Asset Management Co Ltd
* Deal for cad$179 million
* Combined, Mackenzie Investments and Power will hold a 27.8% interest in China AMC
* Power Corp of Canada, indirect parent co of IGM Financial, also announced that it has entered into agreement to acquire additional 3.9% interest in China AMC Source text for Eikon: ID:nCCN85SG8v Further company coverage: IGM.TO