mine · Australia
Mount Weld
One of the highest-grade rare earth deposits in the world, feeding Lynas separation capacity.

Earthern Project Score
87 / 100
Resource, economics and jurisdiction
- Resource
- High-grade rare earth laterite over a carbonatite core.
- Production
- Concentrate feeding Kalgoorlie and Malaysia processing.
- Economics
- Grade supports the only large-scale non-Chinese separated supply.
- Infrastructure
- Road haulage to Kalgoorlie cracking and leaching facility.
- Jurisdiction
- Very low risk
- Ownership
- Lynas 100%
- Region
- Western Australia
What this asset is
One of the highest-grade rare earth deposits in the world, feeding Lynas separation capacity.
Earthern Project Score 87
Version v0.1
- Resource Quality
- 86 (weight 1.2) — Grade, continuity and metallurgical complexity of the resource.
- Project Scale
- 94 (weight 1) — Annual output potential relative to the global market for its primary mineral.
- Development Stage
- 82 (weight 0.9) — How far the asset has advanced toward or through production.
- Jurisdiction
- 89 (weight 1.1) — Political stability, permitting predictability and rule of law.
- Infrastructure
- 92 (weight 0.9) — Access to power, water, transport and processing capacity.
- Economics
- 84 (weight 1.2) — Cost position and margin resilience through the price cycle.
- Strategic Importance
- 88 (weight 1) — Relevance to national critical mineral strategies and allied supply chains.
- Supply-Chain Value
- 90 (weight 1) — Whether the asset relieves a genuine downstream bottleneck.
- Sustainability
- 89 (weight 0.9) — Carbon intensity, water use, tailings approach and community standing.
- Execution Risk
- 87 (weight 1) — Technical, financing and schedule risk to reaching nameplate output. Higher is lower risk.
Minerals produced

Neodymium
A light rare earth element and the backbone of high-performance NdFeB permanent magnets.

Dysprosium
A heavy rare earth added to magnets to preserve performance at high operating temperatures.

Praseodymium
A light rare earth usually produced and traded jointly with neodymium as NdPr oxide.
Related assets

Bayan Obo
The largest rare earth deposit in the world, mined alongside iron ore.

Ganzhou Separation Complex
The centre of global heavy rare earth separation capacity.

Lynas Advanced Materials Plant
The largest rare earth separation facility outside China.

Lynas Kalgoorlie Facility
A cracking and leaching plant that moves the first processing stage onshore in Australia.

Mountain Pass
The only operating rare earth mine in the United States and the anchor of domestic magnet ambitions.

MP Independence Magnetics Facility
A US NdFeB magnet manufacturing facility completing a domestic rare earth loop.