Canada will impose retaliatory tariffs on US goods worth $20 billion starting September 8, following the collapse of trade talks and new 50 per cent levies by President Donald Trump on Canadian products.

• Canada's tariffs will match the US "dollar for dollar" on imports of steel, electronics, dairy, and other products.
• Prime Minister Mark Carney stated Canada "got attacked" and is acting to protect its workers, farmers, and businesses.
• The breakdown complicates the future of the US-Mexico-Canada free-trade pact, with US Trade Representative Jamieson Greer indicating no new talks are planned with Canada.