- Trump shocks markets with scaled-back copper tariff, US prices plunge Reuters
- Trump slaps universal 50% tariff on copper imports; metal’s price plunges CNBC
- Trump Just Crashed the Copper Market The Wall Street Journal
- ADJUSTING IMPORTS OF COPPER INTO THE UNITED STATES The White House (.gov)
- Trump Spares Copper Market From Worst With 50% Duty on Products Bloomberg.com
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