LAS VEGAS--(BUSINESS WIRE)--MP Materials Corp. (NYSE: MP) (“MP Materials” or the “Company”) today announced that its Board of Directors has authorized a share repurchase program of up to $300 million of the Company’s outstanding common stock (“shares”), enabling the Company to opportunistically create value for shareholders. The$300 million authorization is effective for 1 year and does not require the purchase of any minimum number of shares. MP Materials may purchase shares from time to time at the discr ...