    <SEC-DOCUMENT>0001193125-20-327796-index.html : 20201228
    <SEC-HEADER>0001193125-20-327796.hdr.sgml : 20201228
    <ACCEPTANCE-DATETIME>20201228172912
    ACCESSION NUMBER:		0001193125-20-327796
    CONFORMED SUBMISSION TYPE:	424B3
    PUBLIC DOCUMENT COUNT:		9
    FILED AS OF DATE:		20201228
    DATE AS OF CHANGE:		20201228

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MP Materials Corp. / DE
    		CENTRAL INDEX KEY:			0001801368
    		STANDARD INDUSTRIAL CLASSIFICATION:	METAL MINING [1000]
    		IRS NUMBER:				844465489

    	FILING VALUES:
    		FORM TYPE:		424B3
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-251239
    		FILM NUMBER:		201419274

    	BUSINESS ADDRESS:
    		STREET 1:		6720 VIA AUSTI PARKWAY
    		STREET 2:		SUITE 450
    		CITY:			LAS VEGAS
    		STATE:			NV
    		ZIP:			89119
    		BUSINESS PHONE:		(702) 844-6111

    	MAIL ADDRESS:
    		STREET 1:		6720 VIA AUSTI PARKWAY
    		STREET 2:		SUITE 450
    		CITY:			LAS VEGAS
    		STATE:			NV
    		ZIP:			89119

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Fortress Value Acquisition Corp.
    		DATE OF NAME CHANGE:	20200128
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B3
    <SEQUENCE>1
    <FILENAME>d48477d424b3.htm
    <DESCRIPTION>424B3
    <TEXT>
    Document 1 - file: d48477d424b3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g48477g19n14.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g48477g19n14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g48477g26j57.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g48477g26j57.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g48477g50f61.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g48477g50f61.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g48477g51s11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g48477g51s11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g48477g53q68.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g48477g53q68.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g48477g60d22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g48477g60d22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g48477g94i32.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g48477g94i32.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g48477g96n47.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g48477g96n47.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>