Brightstar Resources ($BTR) Limited increased Sandstone’s mineral resource to 3.6 million ounces on 28 September, taking the group total to 5.2 million ounces. At Two Mile Hill–Shillington, the estimate reached 1.45 million ounces at 1.8 grams per tonne gold, including 526,000 ounces in the higher-confidence Indicated category. That is meaningful progress since our August coverage. Resource announcement.
Investors now have two projects to assess separately. Brightstar is building its Laverton plant for the Goldfields development while studying Sandstone as a future production centre. The company’s September presentation targets first gold from Laverton in the June quarter of 2027 and Sandstone’s pre-feasibility study in the December quarter of 2026. Both remain targets.
We would spend at least as much time on the financing as on the extra ounces. Brightstar has raised substantial capital, but shareholders need to understand which funds it can use and what the lenders expect in return.
The money has conditions
Brightstar’s audited accounts distinguish A$122.0 million of cash and equivalents from A$160.9 million of restricted cash at 30 June. The restricted balance came from its US$120 million senior secured bond. Access requires conditions precedent and continuing cost-to-complete tests. The bond carries a 12.5% annual cash coupon, a four-year term and an issue price of 94% of face value. Annual report, notes 10–11 and 20.
At the stated face value, that coupon implies US$15 million of annual interest before fees and changes from scheduled principal repayments. This is a desk calculation, not a forecast of the next financial year’s interest expense. The discount at issue also means the company received less than face value while owing interest on the contractual principal.
The June Appendix 5B reports A$5.343 million of quarterly operating cash outflow and A$26.950 million of investing outflow. Its 55.5-quarter funding calculation uses the narrower operating-outgoings measure and includes the bond facility; it is not a construction runway. June cash-flow report, sections 4 and 8.
Those figures describe June, not cash remaining on 12 October. Adding escrow cash to unrestricted cash and calling the total freely available would overstate flexibility. Equally, treating the financing as absent because access has conditions would understate the work Brightstar has done to fund construction.
What the studies need to establish
In its September presentation, Brightstar repeats Goldfields study estimates of A$606 million pre-tax net present value at an 8% discount rate and about A$1 billion of undiscounted life-of-mine free cash flow, assuming A$6,000 per ounce gold. Its published A$5,500 scenario has A$454 million pre-tax NPV. These are company project-model outputs, not present equity values or dividend forecasts. Study assumptions and sensitivities, page 17.
The sensitivity gives the positive case some substance: the model remains attractive at the lower published gold assumption. It does not establish how the project would perform after a simultaneous delay, higher construction costs and weaker gold prices. Shareholders would need an updated remaining-capital schedule, financing costs and an adequate commissioning allowance before relying on a simple comparison between project NPV and market capitalisation.
Sandstone also has encouraging technical evidence. Brightstar reported average gold recovery of about 94% in September testwork, covering deposits representing roughly 80% of the then 2.9-million-ounce resource. That coverage predates the resource expansion. We should not apply one recovery rate indiscriminately to all subsequent ounces. Metallurgical announcement.
More Indicated material could support better mine planning and eventual reserve conversion. A resource remains a geological estimate; a reserve requires the economic and practical work to establish what can be mined. Sandstone’s PFS needs to show that conversion alongside its development cost. The funding needed for a second production centre should then be assessed against the cash actually available after Laverton’s requirements.
The Take: Brightstar has earned a more serious development discussion. The resource growth and metallurgical results strengthen the case, while the secured financing gives management a route to construction. Our confidence would increase with evidence that Laverton remains within its funded budget and that Sandstone can deliver attractive economics without straining the first project’s cash. A 12.5% lender will be considerably less interested in the next resource headline than in being paid.