Last mentioned: Mar 24, 2026
Mine-to-Magnet Integration
MP Materials reaches full vertical integration, supplying finished magnets to the U.S. automotive market.
Refining Milestone
Commencement of commercial-scale separation of heavy rare earth elements at Mountain Pass.
Texas Magnet Factory Groundbreaking
Construction begins on the first fully integrated rare earth magnet facility in the U.S. in Fort Worth.
Public Listing
MP Materials begins trading on the NYSE following a SPAC merger, valuing the company at $1.5 billion.
Mountain Pass Acquisition
MP Materials acquires the Mountain Pass mine out of bankruptcy for $20.5 million.
MP Materials is spearheading the restoration of the American rare earth supply chain, transitioning from a raw ore exporter to a vertically integrated magnet manufacturer. This shift is critical for U.S. national security and the clean energy transition, aiming to break China's long-standing monopoly on the sector.
This page surfaces every story mentioning U.S. Department of Defense across our climate coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running climate beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where U.S. Department of Defense was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |