Open this photo in gallery: A worker assembles an SUV at a car plant of Li Auto, a major Chinese EV maker, in Changzhou, eastern China's Jiangsu province on March 27, 2024.The Canadian Press Piling pressure onto a Canadian economy already suffering disruption due to new U.S. tariffs and threats of an all-out trade war, China on Saturday imposed new levies against $3.7-billion worth of Canadian agricultural and food products. In a long-awaited response to Canada’s decision last August to impose a 100 per cent tariff on electric vehicles, Beijing said it was introducing equivalent levies on Canadian canola oil,…