Fujisu Siemens' head of corporate communications dismissed that suggestion but admitted that all parties were in contract discussions.
The original partnership agreement started in 1999, he explained, and was due to run for 10 years.
"If nobody sells its stake, then the partnership will continue for a further five years," he added.
Should Siemens not renew that partnership agreement, Fujitsu has first refusal over its 50 per cent stake.
And as the German engineering giant looks to restructure, as it aims to reduce operating costs by €1.2b by 2010, several of its partnership agreements are under the spotlight.