Chrystia Freeland, the Canadian trade minister, was firm after leaving last-ditch talks with European parliament head Martin Schulz to salvage the proposed accord that was seven years in the making.
"Now the ball is in Europe's court and it's time for Europe to finish doing its job," Freeland said, adding that she was returning to Toronto today but hoped to be able to come back on October 27 and sign the agreement.
Afterwards both sides admitted the sticking points are related to "problems within the European Union," said Schulz.
"We still have some difficulties between Europeans," Magnette said while adding that "the discussions we have had together have been very useful."
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According to aides of the Walloon leader, Magnette was now waiting for a statement from the European Commission which precisely addresses the Belgian francophone region's concerns about the trade deal.
The accord was initially scheduled to be signed next Thursday with Canadian Prime Minister Justin Trudeau in Brussels -- and Schulz said that date remained in the diary.
Canada blasted the EU yesterday as "incapable of having an international agreement", as talks to persuade Wallonia broke down.
Freeland's comments fed into warnings that the EU, beset by rising anti-globalisation sentiment, may never be able to land any other deals including one with the United States.
The CETA is opposed by anti-globalisation groups who say it is a test model to push through an even more controversial EU-US trade deal called TTIP, talks on which have also stalled.
And Wallonia has some supporters around Europe.