NEVS, a Swedish-registered company founded by a Hong Kong-based firm specialised in alternative energy and a Japanese investment fund, declined to disclose the amount of the offer.
The court-appointed administrators for Saab, which filed for bankruptcy in December, refused to confirm an offer had been made or when they might announce a possible candidate to rescue the iconic Swedish brand.
According to Swedish media they could make an announcement as soon as the
end of the month.
It has previously been revealed that the consortium was prepared to pay 1.5 to 1.8 billion kronor ($208 - 250 million) for Saab, not including the spare parts company Saab Parts.
Annika Wennerblom, city manager for Trollhättan which is home of Saab's production plant, said early on Thursday she had been informed that a deal has been struck.
“That’s all we know at the moment,” Wennerblom told ttela.se.
“We haven’t been told when they will let us know who the buyer is. They have told us the deal will be signed this week but it is always hard to give exact moments in this kind of business.”
However, later on Thursday the head of information at the Trollhättan municiplaity, Peter Asp, denied that the municiplaity had any knowledge that a deal had been brokered.
"Annika Wennerblom had interpreted it as if it was a done deal, but that is not the case. It is unfortunate that there was a misinterpretation," he said to Aftonbladet.
Saab Automobile, including subsidiaries Saab Tools and Saab Powertrain, was declared bankrupt in December last year, with debts amounting to some 13 billion kronor.
After assets had been estimated, the debts stood at 9 billion.
Over the course of the spring, the administrators have been in negotiations with a number of potential buyers who had shown an interest in purchasing the company as a whole.
Chinese carmaker Youngman is one of the firms named to to be interested in buying Saab. Swedish media have reported that Youngman placed a preliminary bid in late January or early February of about two billion kronor (220 million euros, $280
Youngman has long been interested in Saab and tried to snap it up before it declared bankruptcy but those efforts were thwarted by the Saab's former owner, General Motors, which balked at transferring the necessary technology licences.
Reports have also surfaced that Indian commercial utility vehicles manufacturer Mahindra & Mahindra has placed a bid as well.
Saab was already on the brink of bankruptcy when GM sold it in early 2010to Dutch company Swedish Automobile (SWAN) - at the time called Spyker - for $400 million.
The aim of the administrators has always been to broker a deal before the start of summer, according to news agency TT.