Union Unite has called on the governments of the UK and Sweden to save an Ericsson research and development centre in Coventry.
Closing the plant at Ansty Park will lead to 700 job losses and threaten UK innovation as the work is moved offshore to China.
Peter Skyte, Unite national officer for IT and communications, said, "If this site is allowed to close there will be a loss of highly skilled work that is central to future strategic technological development. The country's capacity to compete for future R&D work will be diminished."
Unite is seeking a meeting with Lord Mandelson to see how the government can intervene.
Skyte says the union is aware of up coming government contracts that Ericsson could bid for. "We want to see if there are any more."
He added that the union will ask Mandelson to influence the Swedish government.