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]

Your Christmas decorations probably come from this one Chinese city. But anxiety is high, with vendors on the front lines of the US-China trade war.