"We will take over Saab Parts if the buyer of the estate does not want it," Bo Lundrgen, the head of the National Debt Office, told news agency TT.
Lennart Ståhl, the head of Saab Parts, said it will be up to the bankruptcy trustees and the National Debt Office to decide the fate of his company.
"The trustees will decide what happens with Saab Parts, but I suppose the National Debt Office has something to say about the matter too," Ståhl said.
The National Debt Office acquired Saab Parts when the Swedish government took over Saab's loan from the European Investment Bank.
Swedish taxpayers now owe the EIB $US 325 million.
"We are counting on getting that money back when we sell Saab Automobile," Bo Lundgren at the National Debt Office said.
Swedish Radio P4 West reported on Thursday that a sale of the Saab estate could be imminent. Saab has declined to comment on the deal.