Apple’s investment in the mining company MP Materials will also help the tech giant reduce its dependence on China for rare earth metals.

MP Materials will supply Apple with magnets it produces at a Texas facility, expanding Apple’s U.S. supply chain at a time when President Trump has pressured Apple to do so.

Apple has announced a $500 million investment in MP Materials, a rare earth mining company based in the US. With the deal, the two companies will partner on the development of a rare earth magnet recycling line in Mountain Pass, California, allowing Apple to use reprocessed electronics and scrap material to build its products.