Highlights

  • Tolu Minerals (ASX:TOK) is advancing the restart strategy for the Tolukuma Gold Mine in Papua New Guinea.
  • Recent exploration has identified high-grade gold veins and extended mineralisation along the Tolukuma system.
  • Infrastructure improvements, including road access development, are a key part of the restart pathway.
  • Future progress depends on exploration success, funding, mine redevelopment and operational execution.

Tolu Minerals (ASX:TOK) continues progressing its strategy to restart the historic Tolukuma Gold Mine in Papua New Guinea, with the company focused on combining high-grade exploration potential with infrastructure improvements aimed at supporting future operations.

The project has attracted investor attention due to its historical production profile, high-grade gold characteristics and the company’s efforts to address previous operational challenges.

As on 4 September 2026, Tolu Minerals (ASX:TOK) was trading at AUD 1.30, up 8.33% on the day. The movement comes as investors continue assessing exploration progress, restart plans and the potential value of the Tolukuma asset.

Tolukuma Gold Mine Strategy

The Tolukuma Gold Mine in Papua New Guinea remains the cornerstone of Tolu Minerals’ growth strategy.

The asset was previously operated by Newmont between 1995 and 2015 and has a strong production history, having produced approximately one million ounces of gold at an average grade of around 14 grams per tonne.

The project has historically delivered high-grade production, with peak grades reported at approximately 21.2 grams per tonne gold and 50 grams per tonne silver.

Tolu Minerals is focused on evaluating the restart potential of the operation while advancing exploration across the broader Tolukuma system.

The combination of an existing Mining history, established permits and exploration upside provides the foundation for the company’s development strategy.

Exploration Progress

Recent exploration activity has strengthened the geological understanding of the Tolukuma system.

The company has identified new high-grade gold veins and reported continuity of epithermal gold mineralisation extending at least five kilometres south-southeast from the existing mine area.

This extended mineralised corridor provides additional exploration targets and highlights the potential for resource growth beyond historical mining areas.

Further drilling is expected to play an important role in defining the scale, continuity and economic potential of the mineralised zones.

For a restart-focused developer, demonstrating additional resource potential could support future mine planning and development decisions.

Infrastructure Development

A major focus for Tolu Minerals is improving access to the Tolukuma operation.

Historically, the mine’s remote location and reliance on helicopter-supported logistics created significant operating challenges.

The company has prioritised construction of a road from Bakoiudu Village to the mine, with the objective of improving logistics efficiency and reducing operating costs.

Improved road access could represent a significant operational change by reducing reliance on expensive transport methods and supporting future redevelopment activities.

The progress of this infrastructure project remains an important milestone for the company’s restart pathway.

Investor Considerations

Tolu Minerals provides investors with exposure to a high-grade gold development opportunity, but the company remains in the pre-production phase.

The Investment case is supported by:

  • Historical high-grade production.
  • Exploration upside across the Tolukuma system.
  • Existing mining infrastructure and permits.
  • Potential cost improvements through better access.

However, several risks remain, including:

  • Funding requirements for redevelopment activities.
  • Infrastructure execution.
  • Remote operating challenges.
  • Papua New Guinea operating environment.
  • Exploration and resource definition uncertainty.

Historical production performance does not guarantee future operating success, and the company will need to demonstrate that the restart strategy can be delivered efficiently.

Growth Outlook

Future milestones for Tolu Minerals (ASX:TOK) include continued exploration results, progress on the Bakoiudu-to-mine road and further updates on the Tolukuma restart plan.

Investors will monitor:

  • Additional high-grade drill results.
  • Resource growth opportunities.
  • Infrastructure development progress.
  • Funding arrangements for redevelopment.
  • Potential timelines towards restarting operations.

Successful completion of infrastructure improvements and a clear pathway towards a funded restart would represent important steps in advancing the project.

Continued exploration success could further strengthen the long-term potential of the Tolukuma asset.

Conclusion

Tolu Minerals (ASX:TOK) is developing a high-grade gold restart opportunity through the Tolukuma Gold Mine in Papua New Guinea.

The project’s historical production profile, exploration potential and planned infrastructure improvements provide a differentiated investment narrative within the gold development sector.

However, the company remains at an important execution stage, with funding, redevelopment progress and operational delivery representing the key challenges ahead.

The next phase of exploration results and restart milestones will determine whether Tolu Minerals can convert the potential of Tolukuma into a sustainable producing gold operation.