Lenovo, the world's No 4 PC brand, said it plans to list on the Shanghai Stock Exchange when rules permit, opening an opportunity for the firm in one of the world's best performing stock markets.

The computer maker also expected its operations in mature markets such as Western Europe and the United States to return to profitability by March 2010, as tech demand there picks up with the easing of the global downturn.

The mainland listing move would make sense for Hong Kong-listed Lenovo, since it developed on the mainland and is one of the best-known brands, with about a third of the market.