Honeymoon is one of only three producing uranium mines in Australia, and one of only two ISR mines in Australia.
Honeymoon first produced uranium under its previous owner in 2011. Operations were suspended in 2013 and Boss Energy acquired the asset in 2015. After redevelopment and commissioning, Boss Energy transitioned from project restart to operating uranium producer, with the successful restart of the Honeymoon Operation in April 2024.
In FY26, Honeymoon produced 1.407 million lb of U₃O₈, an increase of 61% on FY25. The operation achieved FY26 C1 cost of A$39/lb and AISC of A$61/lb, within revised guidance. At 30 June 2026, six producing wellfields and five NIMCIX columns were online.
South Australia is a globally recognised uranium-producing state and a major exporter of uranium oxide, with a well-established regulatory framework and strong government and community support for the industry.
Honeymoon uses in-situ recovery, or ISR, to recover uranium from mineralised sands below the surface. A controlled mining solution is circulated through the orebody via a network of injection and extraction wells. The uranium-bearing solution is returned to the surface, where ion-exchange processing is used to recover uranium before the solution is recirculated.
ISR avoids large-scale permanent open pits, waste-rock dumps and conventional tailings storage facilities. It also requires disciplined management of groundwater, radiation, process solutions, land disturbance, cultural heritage and worker safety.
Operating experience has materially improved Boss Energy's understanding of the Honeymoon deposit, hydrogeology, processing performance and wellfield design.
The extensive technical review of Honeymoon culminated in New Feasibility Study announced in August 2026. The New Feasibility Study has reset the Honeymoon Life-of-Mine plan based on a wide-spaced wellfield design, with the aim of improving production efficiency, lowering operating costs and maximising value from the resource.
