Canada will set 50pc tariffs on imported US steel and aluminum from 8 September as part of a retaliatory package targeting $28bn of imports from its southern neighbor.
The move doubles Canadian tariffs on US steel and aluminum from 25pc, matching US taxes of 50pc on imports of those products from Canada.
The Canadian government announced the retaliatory package of tariffs on Tuesday, days after the US implemented a 50pc tariff on cement, plywood and other imports from Canada. The new US tariffs took effect on 22 August.
The latest US tariffs and Canada's retaliatory tariffs do not apply to energy, potash fertilizer or critical minerals, but they will add additional costs to other key US imports. Raising tariffs on cars and auto parts will further disrupt the integrated North American auto industry.
Trade talks between the US and Canada ended abruptly last week, and no new talks are planned. US president Donald Trump and Canadian province Ontario premiere Doug Ford traded insults on social media and on TV in the past two days. Trump on Tuesday said the US is considering renaming the shared Lake Ontario to "Lake America".
Trump on Monday threatened to double tariffs on cars and auto parts made in Canada to 50pc from 1 January.

