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Highlights

  • Boss Energy commenced an operational review of the Honeymoon project in late July 2025, targeting completion in the December quarter.

  • Geological reviews and wellfield design assessments are being conducted by the Company’s team alongside independent experts and ISR mining specialists.

  • An accelerated drilling program is scheduled for mid-September 2025, expected to run for seven to nine months to support future wellfield planning

Boss Energy Limited (ASX:BOE) has provided an update on its Honeymoon Operational Review, which commenced in late July 2025. The review aims to assess the potential for reduced continuity of mineralisation and leachability compared with the assumptions set out in the Company’s Enhanced Feasibility Study (EFS) released on 21 June 2021.

A key focus of the review is to evaluate any impact on the Company’s ability to achieve the production nameplate capacity specified in the EFS. The output is expected to include an updated assessment of the mineral resource base and the design of wellfields supporting the Honeymoon operation. Boss Energy anticipates completion of the review in the December quarter of 2025.

Progress on Technical Work

Since the initiation of the review, Boss Energy has established a dedicated technical team, outlined a work program, and set timelines for completion. The progress to date includes:

  • Geological Review: Ongoing assessment of Honeymoon and satellite deposits Jasons and Goulds Dam. This includes analysis of input assumptions, data quality, resource domaining, estimation methodologies, and continuity of mineralisation. The review is being led by the Company’s geological team with support from competent persons and independent consultants.

  • Wellfield Assessment: Engagement of additional In-Situ Leach (ISR) mining experts to strengthen evaluation of wellfield design and planning. The team combines experts with previous experience at Boss Energy and newly appointed specialists. Their work will align with international best-practice standards for ISR operations.

Accelerated Drilling Program

To complement the operational review, Boss Energy is also advancing its resource drilling activities. An accelerated drilling program is scheduled to begin in mid-September 2025 and is expected to continue for seven to nine months.

The drilling will provide updated data to support wellfield design, ensuring alignment with the operational planning schedule. 

Next Steps

With the operational review underway and drilling set to commence shortly, Boss Energy is targeting the December quarter of 2025 for completion of the review.