Canola plants bloom in a pasture on a farm near Cremona, Alta., Friday, July 18, 2025. THE CANADIAN PRESS/Jeff McIntosh

Canada’s canola industry is asking Ottawa to limit imports of used vegetable oils to shore up domestic demand as it loses its most important market for seed exports.

On Tuesday, Beijing announced 75.8-per-cent duties on Canadian canola seed.

The move comes toward the end of a one-year anti-dumping probe. China’s Ministry of Commerce argues that Canada’s canola sector benefited from extensive government subsidies and preferential policies that distort markets.

It is an escalation of previous trade barriers on canola. In March, Beijing imposed 100-per-cent tariffs on canola oil and meal (a byproduct of processing the seed). All Canadian canola products are now eff

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