TORONTO - The president of the Canadian Auto Workers Union says he expects some Canadian General Motors plant to suspend production while the U.S.-based parent company files for bankruptcy protection.

Ken Lewenza says he would be "incredibly surprised" if all plants manage to stay open after General Motors Corp. files for chapter 11 bankruptcy protection.

The automotive giant began those proceedings Monday morning in a New York court.

Lewenza says he does not want to speculate as to which plants may be impacted by the filing.

He says he is cautiously optimistic that GM's Canadian unit may be able to avoid seeking creditor protection, but concedes it is still a possibility.

He did not comment on media reports that the Canadian government would invest about $9 billion dollars in a restructured GM and hold a 12.5 per cent stake in the company.

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