Copper prices—and mining stocks—rose after President Trump confirmed a 50% tariff on the metal will take effect Aug. 1.

The decision came weeks after the U.S. Supreme Court limited sweeping injunctions in similar challenges to the order.

But the ugly new law is one of the least popular acts ever.

Trump’s tariffs and the trade war continue to affect global markets. Follow along for live updates on the Dow, S&P 500 and Nasdaq.