“U.S. President Donald Trump on Wednesday imposed hefty new tariffs on imported copper products, though the duties largely spare Canada’s mining and refining industry.

Mr. Trump set the tariff for a range of copper products at 50 per cent starting Aug. 1, citing national security concerns for his latest attempt to bolster his country’s manufacturing sector by raising trade barriers.

The White House said it will slap the duty on copper pipes, wires, rods, sheets and tubes as well as derivative products such as pipe fittings, cables and electrical components.

However, copper concentrate and anodes and cathodes, semi-processed materials that companies in Canada produce and export in large volumes, as well as copper scrap, are exempt for the time being, it said.”
The Globe and Mail