16/10/2026
Diatreme Resources has released a prefeasibility study for its proposed Northern Silica Project in Far North Queensland, outlining a 3 Mtpa Phase 1 operation with estimated construction capital of A$443.5 million.
Read the full BBI Project Watch:
https://bowenbasinindex.com.au/northern-silica-project-pfs-diatreme-2026/
The study reports a maiden Probable Ore Reserve of 151.25 Mt at 99.25% SiO2 and models a 25-year mine life. An optional expansion to 5 Mtpa remains conditional on further decisions.
For Queensland engineering, construction and supply-chain businesses, the development provides a clearer picture of potential future capability requirements across mine infrastructure, mineral processing, access, environmental studies and export logistics. These are areas to monitor, not confirmed work packages.
The project remains in environmental assessment. A definitive feasibility study, required approvals, agreements, financing and a final investment decision must precede sanctioned construction.