Mineral Park is a brownfield open-pit copper-molybdenum mine and concentrator restart in Mohave County, Arizona. Origin Mining Company is the direct mine owner and Waterton Copper is Wheaton's PMPA counterparty; Wheaton holds a life-of-mine stream over 100% of silver production, subject to a 90% fixed payable factor. Concentrate sales began in Q4 2025, monthly silver deliveries began in January 2026, and the refurbished 16.5 Mtpa concentrator remained in commissioning and ramp-up during Q1 2026. Wheaton reports current attributable silver reserves of 28.9 Moz and additional measured and indicated silver resources of 15.0 Moz, with inferred resources of 15.5 Moz.
- Country
- United States
- Commodity
- Cu
- Stage
- Construction