The Financial Post reports in its Wednesday edition that U.S. President Donald Trump says he's relaxing tariffs on certain products that use steel, aluminum and copper, such as agricultural machinery and HVAC equipment, to 15 per cent from 25 to provide economic relief for sectors that use these products. The Post's Gabriel Friedman writes that the administration also said it would reduce the U.S. sourcing threshold so that some foreign products may qualify for a 10-per-cent tariff rate -- down from 15 per cent -- if they contain 85 per cent U.S. metals, down from 95 per cent. Mr. Trump announced the changes, which are effective next Monday, in a proclamation on Monday, saying the products play an important role in the U.S. economy. The order will modify Section 232 tariffs that invoked national security concerns to raise tariffs on aluminum, steel and copper products. Industrial mobile equipment, including forklifts and bulldozers, will also be eligible for a 15-per-cent tariff. But the tariffs will only drop if the products are imported "from trade deal countries that are entitled to such treatment," which some analysts believe will include countries such as Canada and Mexico that have trade agreements with the U.S.