The Globe and Mail reports in its Tuesday edition that Algoma Steel chief executive officer Michael Garcia says 50-per-cent tariffs on Canadian steel imports could make the company's U.S. business unviable. The Globe's Niall McGee writes that U.S. President Donald Trump on Friday said he intends to double tariffs on steel and aluminum to 50 per cent from 25 per cent, effective on Wednesday. His original tariffs, which were put in place in March, were framed around the need to protect the country's national security. The tariffs apply to all its imports of the metals, not just those from Canada. The existing U.S. tariff has already caused considerable damage to Algoma. The percentage of its revenue coming from the United States has fallen to 50 per cent from as high as 65 per cent. A doubling of the tariff may grind its U.S. business to a halt entirely, Mr. Garcia told The Globe. "Unless the price of steel rises to the 2020-2021 levels, paying a 50-per-cent tariff would be commercially unviable," he said. The price of U.S. Midwest domestic hot-rolled coil steel futures traded around $900 (U.S.) a tonne on Monday. The steel price hit almost $2,000 (U.S.) a tonne in September, 2021. Algoma employs around 2,750 people.