What this place is
Mount Weld is a 2-billion-year-old volcanic pipe whose top has been rotted by weathering into a natural concentrate. Its ore is shipped to Malaysia for cracking and separation.
What comes out

Rare Earths (all)
A family of seventeen metals that are not actually rare in the ground, but are hard to separate from each other…

Neodymium
The rare earth at the heart of the strongest magnet ever made — the kind in headphones, hard drives, wind turbines…

Praseodymium
Neodymium's near-twin, so alike that magnet makers usually do not bother separating the two and sell them together as…
A “by-product” is a metal recovered because it happens to be in the same rock, not because anyone went looking for it. Its supply therefore follows the primary metal’s economics, not its own.
Who owns it
| Company | Role | Interest |
|---|---|---|
| Lynas Rare Earths | Miner | Owner-operator |
As publicly reported by the operators. Ownership of large mines changes; verify against current company filings before relying on it.
