In the newly-created position, head of China business, he will be based in Hong Kong and report to Carol Wong, managing director of Asia-Pacific.
Mo will develop relationships with regulators, global financial institutions and distributors in the region, OMGI said in a statement.
“The deregulation of capital control by the Chinese government has begun to open routes in China,” Wong said. “This is a significant opportunity for us to work with professional investors in the world’s second largest economy.”
In an earlier interview with FSA, OMGI’s managing director Warren Tonkinson said the firm intends to build distribution relationships in mainland China.
Mo joined the firm on August 15, coming from JP Morgan Asset Management, where he worked for 16 years. In his latest role he served as head of China retail business, responsible for wealth management and client development in retail markets in China, dealing with both Chinese and foreign banks, according to OMGI.
Last month, OMGI added Gerard Clancy, head of sales for Southeast Asia, to its Singapore office, which it shares with Old Mutual International.
In May, the firm hired former Blackrock manager Rob Weatherston to run its Japanese equity fund out of Hong Kong.
UK-based OMGI, part of Old Mutual Wealth, reported global assets under management of $34.8bn (£27bn) as of 30 June.