MP Materials surges after sealing Saudi rare-earth JV with Maaden
MP Materials surged 8.5% premarket after announcing a joint venture with Saudi miner Maaden and the US Department of War to build a major rare-earth refinery in Saudi Arabia. Maaden will hold 51% of the JV, with MP and the DoW sharing the remaining 49%. MP was among the top-trending tickers on Stocktwits.