Trump shocks markets with scaled-back copper tariff, U.S. prices plunge CTV NewsTrump orders scaled-back on some copper imports, citing national security CBCCanadian producers relieved as Trump’s 50% tariff on imported copper spares key products The Globe and MailTrump’s universal 50% copper tariffs take effect Aug. 1. What’s impacted? Global NewsTrump Just Crashed the Copper Market The Wall Street Journal