Siemens wants to sell its half of a computer joint venture with Fujitsu of Japan, an AFP report said.
The AFP report, quoting the Wall Street Journal, said Siemens has told Fujitsu it wants to pull out of their nine-year-old venture known as FSC, and Fujitsu has an option to buy the German company's share, though it was not sure the Japanese firm would do so.
It quoted Fujitsu president Kuniaki Nozoe as saying that mobile phones were a more promising way of increasing foreign sales than personal computers.
One possible buyer, the report said, was Lenovo Group of China, which bought IBM's personal computer division in 2005.
According to the newspaper, based on Lenovo's present worth, the Fujitsu Siemens venture might be worth around €2.6 billion, (US$4 billion).
Spokesmen for Siemens declined to comment, the report said, while Fujitsu and FSC could not be reached for comment.