MP Materials, operator of the Mountain Pass mine in California’s Mojave Desert, is ramping up supplies of the critical ingredients and magnets as China tightens exports.

Here's the latest on the trade war over the past 24 hours. Beijing warned countries not to do trade deals with the U.S. that isolate China. President Trump fired off [tariff talking points]

U.S. Customs and Border Protection announced late Friday that some smartphones, computers, chips and other electronics would be exempted from tariffs, but Trump's top economic advisers hit the Sunday talk shows to explain the policy, saying that tariffs against electronics would be coming in the next month or two.