By Ed White (Reuters) -Port of Montreal terminal operators have threatened to shut down most operations as of Sunday after providing a final offer to the longshore union. The total shutdown would further slow Canadian imports and exports at a time the Port of Montreal is already operating at partial capacity and as West Coast ports are stopped due to a separate dispute.

The employers association at the Port of Montreal has issued the dockworkers' union a "final, comprehensive offer," threatening to lock out workers at 9 p.m. Sunday if a deal isn't reached.

Port of Montreal terminal operators have threatened to shut down most operations as of Sunday after providing a "final, comprehensive offer" to the longshore union. If the Canadian Union of Public Employees Local 375 does not accept the offer by Sunday at 8:00 p.