Kalamazoo Resources is moving Ashburton from exploration story to development proposition, backed by a positive Mt Olympus Scoping Study and extensive drilling. The next test is whether the updated resource, feasibility work and funding can turn the project’s preliminary economics into a mineable plan.
- Mt Olympus Scoping Study forecast A$423 million pre-tax NPV8 at A$4,500/oz gold
- Ashburton resource stands at 1.44 million ounces, unchanged during FY26
- 72-hole, 13,726-metre drilling program completed ahead of a Q4 2026 resource update
- FY26 profit of A$488,453 was supported by recognition of a A$3 million option fee
- A$8 million post-year-end placement extends funding but going-concern uncertainty remains
Ashburton Moves Towards Development
Kalamazoo Resources Limited (ASX:KZR) ended FY26 with its core investment case increasingly centred on one question: can the Ashburton Gold Project progress from a promising resource into a financeable mine? The company has completed a positive Scoping Study for the Mt Olympus deposit, started a Pre-Feasibility Study and accelerated drilling across the Western Australian project.
The headline study case is substantial but remains preliminary. At a base-case gold price of A$4,500 an ounce, Mt Olympus was assessed at about A$423 million pre-tax NPV8 and A$747 million of pre-tax free cash flow, with an estimated 47% internal rate of return. The proposed operation would recover approximately 524,000 ounces over a 73-month mine life, with pre-production capital expenditure of about A$208 million and an estimated all-in sustaining cost of A$2,183 an ounce.
Drilling Sets Up the Resource Update
Ashburton’s reported Mineral Resource remains 16.2 million tonnes at 2.8 grams per tonne for 1.44 million ounces of gold across Mt Olympus, Peake, Waugh and Zeus. Mt Olympus accounts for 12.2 million tonnes at 2.7 grams per tonne for 1.07 million ounces and is the foundation of the proposed initial development.
Kalamazoo completed 72 resource-definition holes for 13,726 metres in July, with drilling spacing reduced to about 20 metres by 20 metres across key areas. Assays received from the first 62 holes included 33 intercepts exceeding 50 gram-metres, including 20 metres at 19 grams per tonne and 69 metres at 3 grams per tonne. The company has targeted an updated Mt Olympus resource estimate for the fourth quarter of 2026, although the reported exploration targets beneath Mt Olympus and at Peake remain conceptual and are not Mineral Resources.
PFS Deadline Meets a Funding Constraint
The PFS is scheduled for the first half of 2027 and is incorporating the recent resource-definition and growth drilling. Kalamazoo is also testing underground extensions beneath Mt Olympus and the Peake deposit, while its broader Ashburton tenure has expanded through the acquisition of the 142-square-kilometre Xanadu project and pending applications that could take controlled regional tenure to about 519 square kilometres.
That growth agenda comes with a clear financial qualification. Kalamazoo reported a FY26 profit of A$488,453, reversing a A$4.40 million loss, but the result was materially supported by recognising a previously received A$3 million Ashburton option fee. Operating and investing activities consumed A$11.81 million in cash during the year, while cash at 30 June 2026 was A$1.91 million. A subsequent A$8 million placement provides additional runway, but the accounts disclose a material uncertainty over going concern and state that further capital may be required to develop the assets.
The Mine Case Still Depends on Conversion
The company’s stated ambition is to grow beyond the Scoping Study’s 524,000-ounce production profile and ultimately exceed one million ounces, subject to drilling success and future technical studies. That ambition is supported by the existing resource base, underground targets and more than 12 kilometres of prospective mineralised trends west of Mt Olympus, but those targets cannot yet be treated as mine inventory.
For shareholders, the next milestones are unusually concrete: the Q4 2026 Mt Olympus resource update, the remaining assay results, the H1 2027 PFS and the capital required to fund development beyond feasibility. The Scoping Study has given Kalamazoo a compelling project framework; the harder work is proving how much of that framework survives tighter resource estimates, engineering scrutiny and the next financing.
Bottom Line?
Ashburton now has a credible preliminary development case, but the resource update, PFS and future funding will determine whether Kalamazoo’s explorer-to-developer transition becomes more than a well-supported plan.
Questions in the middle?
- Will the Q4 2026 Mt Olympus resource update add enough converted and higher-confidence ounces to strengthen the PFS case?
- Can the PFS preserve the Scoping Study’s economics after incorporating updated drilling, mine design and engineering assumptions?
- How much additional equity or debt funding will be required before Ashburton can move from feasibility into construction?