Chinalco said the Rio stake was a strategic investment as part of its diversification and internationalization plans, and that any decision to sell it would not be made lightly, the Chinese-language Beijing Times reported.
There has been market talk that China Investment Corp, the country's $300 billion sovereign wealth fund, may bid for state-owned Chinalco's roughly 9 percent stake in Rio. For related article, double-click on:
Rio's relations with Chinalco soured in July 2009 when it snubbed an offer that would have seen the Chinese group invest another $19.5 billion for a bigger equity partnership. Rio later opted to form an iron ore joint venture with rival BHP Billiton Ltd.
(Reporting by Simon Rabinovitch; Editing by Andy Bruce)