CASTILE RESOURCES Rover 1 and regional exploration Investor Pack →

Gold and downstream critical minerals.

Produced in Australia.

Castile Resources (ASX:CST) is developing the Rover 1 Project near Tennant Creek in the Northern Territory. Gold doré and 99% copper anchor the valuation, with by-product bismuth, cobalt and high-grade magnetite refined downstream at Darwin's Middle Arm precinct — five revenue streams from one deposit.

Explore Rover 1 Visit the investor centre

Updated Pre-Feasibility & Bismuth Scoping Study — June 2026

The June 2026 study models Rover 1 as a 750 ktpa underground operation with five revenue streams over a 12-year project life.

  • A$1.6B Rover 1 NPV, pre-tax 8% discount rate
  • A$7.1B Project life revenues Life of mine
  • 48% Post-tax IRR Base case

See how the numbers build — Rover 1 in detail

The Rover 1 Project

A high-grade IOCG deposit with five revenue streams.

Rover 1 is a high-grade Iron Oxide Copper Gold (IOCG) deposit beneath the Rover Mineral Field, 57 km from Tennant Creek.

Castile beneficiates ore at Rover 1 in Tennant Creek to a concentrate, then refines downstream at the Middle Arm Sustainable Development Precinct in Darwin, producing gold doré, 99% copper, 99% cobalt, 96.5% magnetite and bismuth concentrate.

Project life revenue by stream

  • Gold A$2.80B 39%
  • Copper A$2.07B 29%
  • Bismuth A$1.17B 16%
  • Cobalt A$635M 9%
  • Magnetite A$432M 6%

Source: Rover 1 Updated Pre-Feasibility Study and Bismuth Scoping Study, ASX:CST, June 2026 · Mineral Resource update, ASX:CST, 20 October 2025.

Rover 1 in detail The wider Rover district

Australia The Rover 1 Project

Map of Australia marking the Rover 1 Project near Tennant Creek in the Northern Territory with a Castile Resources pin.

Where things stand

The path to the BFS.

Castile has completed an updated Pre-Feasibility Study and a concurrent Bismuth Scoping Study on Rover 1. Both now underpin the Bankable Feasibility Study, which follows once final third-party cost estimates are signed off.

  1. Dec 2022

    Pre-Feasibility Study complete

    Rover 1 modelled as a 500 ktpa underground operation.

  2. Apr 2023

    Major Project Status

    Awarded by the NT Government, with land allocated at Middle Arm in Darwin.

  3. Oct 2025

    41% Mineral Resource uplift

    Updated JORC Mineral Resource of 7.86 Mt.

  4. Feb 2026

    A$8.4M placement

    Raised to advance Rover 1 toward development.

  5. Jun 2026

    Updated PFS and Bismuth Scoping Study

    Rover 1 valued at A$1.6B NPV (8%) pre-tax.

  6. Next

    Bankable Feasibility Study

    Follows once final third-party cost estimates are signed off.

Follow progress in ASX announcements