China Investment Corporation (CIC), the nation's $300 billion sovereign wealth fund, is committed to its role as a financial investor and confirmed recent investments in developed countries have not exceeded the 20 percent level in any one company, Gao Xiqing, its president and chief investment officer, said on Friday.

"We aim to be a purely financial investor rather than a strategic investor which makes long-term financial returns the top priority," Gao said at a financial conference held by the Chinese-language Caijing Magazine in Beijing.

The comments follow international concern that the fund's overseas investments were partly driven by a national, strategic agenda focused on controlling global resource assets.