Ramaco Resources released an initial assessment by Hatch for its Brook Mine rare earth and critical minerals project, detailing process, capacity and cost estimates.
Key Highlights:
- Hatch delivered an Initial Assessment (July 28, 2026) for Brook Mine covering process, mass balance and AACE Class 5 cost estimates.
- Base-case throughput set at 1.3 million dry mt/yr ROM with target CMO-equivalent production of 574 dry mt/yr.
- Updated HPA target increased to 11,848 mt/yr; HPS target 18,617 mt/yr and original HPA basis used for site layout.
- Class 5 CAPEX equipment supply noted ~421 M USD (used to derive maintenance); OPEX estimated at 150.7 M USD/yr (excl. contingency, G&A).
- Process centers on carbo-chlorination with projected Ga and Ge recoveries of 94% and 84%; further test work and Class 4 estimates planned.
Original SEC Filing:
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