From an ice cream parlour in California to a medical supply business in North Carolina to a T-shirt vendor outside Detroit, U.S. businesses are bracing to take a hit from the taxes President Donald Trump imposed Saturday on imports from Canada, Mexico and China America's three biggest trading partners. The levies 25 per cent on Canadian and Mexican and 10 per cent on Chinese goods will take effect Tuesday. Canadian energy, including oil, natural gas and electricity, will be taxed at a lower 10 per cent rate. Mexico's president immediately ordered retaliatory tariffs and Canada's prime minister said the country would put matching 25% tariffs on up to USD 155 billion in US imports. China did not immediately respond to Trump's action. The Budget Lab at Yale University estimates that Trump's tariffs would cost the average American household USD 1,000 to USD 1,200 in annual purchasing power. Gregory Daco, chief economist at the tax and consulting firm EY, calculates that the tariffs