Rare earth elements are tiny yet essential parts of many of the technologies you use every day. New techniques are making their recovery from US sources increasingly viable.

President Trump threatened Monday to hit China with an additional 50% tariff if Beijing doesn’t lower its 34% retaliatory tariff on the US by Tuesday. “If China does not withdraw its 34% ...

Hours after Donald Trump’s latest tariffs came into effect, China has announced retaliatory measures: an additional 50 percent tariff on US goods, on top of a planned 34 percent charge ...