---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-352239"
form_type: "8-K"
ticker: "MP"
cik: "0001801368"
company_name: "MP Materials Corp. / DE"
filed_at: "2021-12-09T23:59:59+00:00"
generated_at: "2026-06-28T02:31:49.681753+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MP Materials to build Texas magnet factory, signs long-term supply deal with GM for EV motors

## Summary
- Long-term binding agreement with GM to supply U.S.-sourced rare earth alloy and magnets for more than a dozen Ultium Platform EV models starting in 2023.
- New 200,000 sq. ft. greenfield NdFeB magnet facility in Fort Worth, TX; capacity ~1,000 tonnes/year, enough for ~500,000 EV motors annually.
- Facility will create over 100 skilled jobs and serve as headquarters for MP Magnetics; sources materials from Mountain Pass, CA.
- MP Materials expects to produce 6,075 tonnes of NdPr oxide annually at Mountain Pass; Fort Worth facility will consume less than 10% of that.

## SEC filing metadata
- accession: 0001193125-21-352239
- form_type: 8-K
- ticker: MP
- cik: 0001801368
- company_name: MP Materials Corp. / DE
- filed_at: 2021-12-09T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1801368/000119312521352239/0001193125-21-352239-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1801368/000119312521352239/d266957d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-352239
- JSON: https://secwatch.observer/filing/0001193125-21-352239.json
- Plain text: https://secwatch.observer/filing/0001193125-21-352239.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.