It is reported that aluminum Corp of China Ltd is not involved in a reported bid by Chinese entities to take a 9% stake in Anglo Australian miner BHP Billiton.

Ms Zhang Qing Chalco's investor relations manager said that she has seen the report in an Australian newspaper but added that the company's investment program remain focused on aluminum and alumina operations.

She said that "I do not know of any plans at this point to expand in a significant way into other metals, referring to BHP Billiton's diverse portfolio of operations.”

Reports of a Chinese bid for BHP Billiton come after state owned Chinalco took a joint stake with Alcoa in Rio Tinto Ltd earlier this year.