Name of the Project
Green River lithium project.

Location
Paradox basin of south-eastern Utah, in the US.

Project Owner/s
Critical minerals company Anson Resources, through its wholly owned subsidiary Blackstone Minerals.

Project Description
The project is being developed as a direct lithium extraction (DLE) brine project to produce battery-grade lithium carbonate.

The May 2026 front-end planning Stage 1, or FEP-1, scoping study is based on a Phase 1 operation producing 10 000 t/y 
of lithium carbonate over 20 years.

The process will extract brine from a wellfield and transfer it to a processing plant. The brine will be pretreated using Anson’s proprietary nonchemical iron-removal process, followed by lithium extraction using a commercially proven DLE technology. The eluate will then be polished and further refined into battery-grade lithium carbonate.

The updated Joint Ore Reserves Committee-compliant mineral resource estimate comprises 773 000 t of lithium carbonate equivalent (LCE). This includes 183 000 t LCE in the indicated category and 590 000 t LCE in the inferred category, based on drilling results from the Bosydaba #1 and Mt Fuel–Skyline Geyser 1-25 wells.

The project benefits from nearby infrastructure, including the Green River, from which Anson has water rights, Interstate 70, the Union Pacific railway, high-voltage transmission corridors, a natural gas pipeline, town water and sewage infrastructure, and fibre-optic network access.

In May 2026, Anson Resources announced that POSCO Holdings Inc’s board and the Anson’s board had approved the terms for a definitive demonstration plant agreement pertaining to the construction and operation of a DLE demonstration facility at the Green River lithium project. 

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
The FEP-1 scoping study estimates a base-case pretax net present value (NPV), at an 8% discount rate, of $1.37-billion and an IRR of 27.5%. The base-case after-tax NPV is estimated at $896-million, with an after-tax internal rate of return of 21.7%.Payback is estimated at 4.44 years.

Capital Expenditure
Upfront capital costs are estimated at $568.47-million.

Planned Start/End Date
First supply of battery-grade lithium carbonate, fully finished on site, is targeted for 2029.

Latest Developments
None stated.

Key Contracts, Suppliers and Consultants
Burns & McDonnell (FEP-1 scoping study); Apex (resource estimate); and Benchmark Minerals (lithium pricing data used in FEP-1 study).

Contact Details for Project Information
Anson Resources, tel +61 7 3132 7990 or email Info@AnsonResources.com.