Tiny rare-earth magnets are used for building phones, electric cars, and submarines, but nearly all of them are mined and made in China. One U.S. company is trying to change that. WSJ’s Jon Emont spoke with MP Materials’ CEO about his goals for the mine, which has now made deals with the Pentagon, General Motors, and Apple. Can this industry come back the U.S.? Jessica Mendoza hosts. Further Listening: -Why Trump Wants Ukrainian Minerals -Greenland Has Tons of Minerals. So Where Are All the Miners? Sign up for WSJ’s free What’s News newsletter. Learn more about your ad choices. Visit megaphone.fm/adchoices