"I want to ask the Commission carefully to analyse and compare the available data of the various factories in the Opel group and to see if non-commercial protectionist conditions are bound to the business plan," Peeters said in a statement according to a report by Reuters.
GM CEO Fritz Henderson confirmed at the Frankfurt Auto Show last month that the plant is indeed at risk but a decision is yet to be made.
"That plant has been under evaluation for some time; no final decision has been taken. But it's certainly at risk," he said.
On the other hand, officials involved in the talks claimed Magna hasn't discussed the possibility of a closure, with employees saying they are ready to fight to keep the plant open.
"We have not been told that Antwerp will be closed. Magna has not said that the Antwerp factory is going to close," Rudi Kennes of Belgium's FGTB trade union told German HR-Info radio. "If we don't fight today for the future of Antwerp, it will be the same thing at another plant tomorrow," Peter Scherrer, German head of the European metalworkers federation (FEM), told AFP.