Canada’s negotiating team is intensifying trade talks with the United States after they hit a snag last month, and with a July 21 deadline to conclude some kind of agreement looming.

President Trump's move to impose a 50% tariff on U.S. copper imports targets a vital metal that is widely used in many products and industries. That could lead to higher prices for everything from appliances and electronics to cars and home repairs,

US copper prices soared to a record on Tuesday after Donald Trump said Washington would impose 50 per cent tariffs on the industrial metal in the latest escalation of the president’s trade war.

It still hit like a bombshell, with potential to shake up U.S. efforts to expand, develop and deploy artificial intelligence.

President Trump has threatened to hit more than a dozen nations with steep import duties by next month. Mr. Trump initially posted two nearly identical letters on Monday, addressed to Japanese Prime Minister Shigeru Ishiba and South Korean President Lee Jae-myung,