China has imposed retaliatory tariffs on Canadian agricultural products, including a 100% tariff on rapeseed oil, rapeseed meal, peas, and a 25% tariff on pork and some seafood.

China announced the major wave of retaliatory tariffs against Canadian agricultural products on Saturday morning as the war between Canada, China, Mexico and the United State continue to escalate.

The new duties become effective March 20, according to a statement by the Customs Tariff Commission of the State Council.

These tariffs claimed to be in response to Canada’s 100% tariff on Chinese electric-vehicles and 25% levy on aluminum and steel products, announced last October.

“Despite China’s repeated opposition and dissuasion, Canada has taken unilateral restrictive measures on electric vehicles, steel, aluminum and other products imported from China without investigation, undermining China-Canada economic and trade relations,” read the statement by the customs authorities.

The decision to impose retaliatory duties comes after an “anti-discrimination probe, which found out that Canada’s restrictive measures against some Chinese products have disrupted normal trade order and harmed the legitimate rights and interests of Chinese enterprises,” it added.

The tariffs impact over $2.6 billion worth of Canadian exports, signaling a deepening of economic friction between the two nations.