• Large Mineral Resource with Expansion Upside
    Existing 1.1 Moz mineral resource underpins a potential near-term development scenario, with open extensions and multiple high-grade intercepts including 24m @ 5.8 g/t Au. Over 67% of the Mineral Resource is in the Measured and Indicated categories.
  • Tier-One Location
    Colosseum is located in California’s Walker Lane Trend, surrounded by multi-million-ounce historical producers and active infrastructure. Colosseum is located 10km (6 miles) along strike from the Mountain Pass REE mine, the only REE operation in the US.
  • Fully Permitted with Strong Government Support
    Vested Mining Rights and approved Plan of Operation are in place that allows mining to commence. The Company has received excellent support at high levels of the US Government for gold & rare earth developments.
  • Bankable Feasibility Study Underway
    Bankable Feasibility Study (BFS) due late 2025, targeting a low-CAPEX, open-pit mining scenario. The BFS is based upon the 2025 Updated Scoping Study that demonstrated excellent economics with an NPV6.5 of US$550 million and IRR of 61%.
  • Historic Asset with Modern Upside
    The Colosseum mine was historically operated by LAC and Barrick, producing 344,000oz between 1988-1993. Dateline has consolidated ownership and modernised the geological model for development in 2026.
  • Rare Earths Upside
    Colosseum is located 10km (6 miles) along strike to the north from the Mountain Pass REE mine and has similar geology. Mapping, geophysics and geochemistry has been used to plan a major drilling campaign in the second half of 2025.