Mon Valley is a 100%-owned development complex comprising the proposed Pangburn, Shaner and Fallowfield underground mines in southwestern Pennsylvania. Its S-K 1300 report contains a pre-feasibility-level reserve model, so Pre-Feasibility is the closest stage. The model reports US$365.2 million after-tax NPV at 10% and US$577.5 million of capital expenditure in the first five pre-production years; the mines were not permitted or constructed at the end of 2025.
- Country
- United States
- Commodity
- Coal
- Stage
- Pre-Feasibility