Aurum Hits 80g/t Gold at Boundiali Ahead of Q3 Resource Upgrade
Aurum extends high-grade gold at Boundiali with 80 g/t hit at BST1
Aurum Resources has reported high-grade drilling results from its 3.22Moz Boundiali Gold Project in Côte d’Ivoire, including a standout intercept of 3m @ 80.09 g/t Au from 66m (incl. 2m @ 117.73 g/t) at the BST1 deposit. The company received assays from 46 diamond drill holes totalling 8,835.14m — 35 holes (7,303.79m) at BST1 and 11 holes (1,531.35m) at the BST2 prospect. These results confirm mineralisation extending outside the current Mineral Resource Estimate (MRE) at BST1 and across BST2, which sits entirely beyond the MRE boundary with no resources currently defined, feeding directly into the next resource update targeted for end Q3 CY2026.
Aurum holds a total group resource of 4.4Moz gold (3.22Moz at Boundiali and 1.16Moz at Napié) and reported an unaudited cash position of A$54.7M as at 30 June 2026, underpinning its funded exploration and development trajectory.
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Standout intercepts from BST1 and BST2
BST1 deposit (within existing 570koz resource)
- 3m @ 80.09 g/t Au from 66m incl. 2m @ 117.73 g/t (BSDD0091)
- 38m @ 4.20 g/t Au from 65m incl. 3m @ 30.52 g/t (BSDD0096)
- 1.50m @ 37.38 g/t Au from 16.50m (BSDD0096)
- 3.77m @ 9.62 g/t Au from 57.23m incl. 2.77m @ 12.75 g/t (BSDD0101)
- 7m @ 3.85 g/t Au from 70m incl. 5m @ 5.27 g/t (BSDD0089)
BST2 prospect (outside current MRE — no resources defined)
- 3m @ 27.65 g/t Au from 144m incl. 1m @ 78.13 g/t (BSDD0077)
- 2m @ 5.10 g/t Au from 117m incl. 1m @ 9.74 g/t (BSDD0073)
- 3m @ 1.39 g/t Au from 96m incl. 1m @ 3.49 g/t (BSDD0073)
The drilling comprised a mix of infill, step-out, and extensional holes. Gold mineralisation remains open along strike and at depth at both targets.
Why these results matter for the resource story
Intercepts confirming mineralisation outside the current MRE point to resource growth potential — new ounces not yet counted in the 22Mt @ 0.8 g/t for 570koz classified at BST1. BST2 represents an effective new growth front, sitting entirely beyond the MRE boundary, although more drilling will be required before it can be classified into the resource inventory.
The operational advantage underpinning this growth trajectory is clear: 16 Aurum-owned diamond rigs enable faster, lower-cost drilling than peers — a repeatable exploration engine driving resource conversion and discovery. Managing Director Dr Caigen Wang stated:
Dr Caigen Wang, Managing Director
“Our latest results from drilling at BST continue to derisk and build our resource base for the Boundiali Gold Project… With 16 diamond rigs owned by Aurum now active across Boundiali, these results will feed directly into our next major resource update, targeted for the end of Q3 CY2026.”
Understanding grade — what 80 g/t gold actually means
Gold grade is measured in grams per tonne (g/t), the industry standard unit expressing how much gold exists per tonne of rock drilled. Many producing gold mines globally operate on grades around 1 g/t; anything above approximately 5 g/t is generally considered high-grade. So intercepts like 80 g/t and 117 g/t are exceptional by any standard.
An intercept refers to the downhole length drilled through mineralisation. Both width and grade matter when evaluating potential economic significance. At Boundiali, true widths are estimated at approximately 60–85% of downhole length based on the interpreted geometry of the mineralised zones.
Intercepts outside the existing resource envelope are particularly valuable: they signal the deposit is larger than currently counted, supporting future MRE upgrades. This is why the market watches drill results closely ahead of resource updates — they preview where the ounce count is heading.
The bigger picture — Boundiali’s path to development
| Project | Type | Tonnes (Mt) | Grade (g/t) | Gold (Moz) |
|---|---|---|---|---|
| Boundiali | Total | 107.5 | 1.0 | 3.22 |
| Napié | Total | 30.0 | 1.2 | 1.16 |
| Group Total | — | 137.5 | 1.0 | 4.38 |
Boundiali also has a Maiden Ore Reserve of 1,210koz (42.1Mt @ 0.9 g/t, Probable) delivered in June 2026, underpinning the development case.
Boundiali sits within a tier-1 neighbourhood — the same Birimian greenstone belt hosting Resolute Mining’s Syama (11.5Moz), Montage Gold’s Koné (6Moz), and Atlantic Group’s Tongon (5.0Moz). This geological address carries weight: proven endowment, established infrastructure corridors, and demonstrated commercial viability.
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What’s next — catalysts through late CY2026
- 130,000m drilling planned CY2026 — 100,000m at Boundiali, 30,000m at Napié, across 16 owned rigs.
- Next Boundiali MRE update — targeted end Q3 CY2026 (Jul–Sep 2026); today’s assays feed directly in.
- Definitive Feasibility Study (DFS) — expected late CY2026, incorporating 2026 drilling and the completed PFS.
- Mining Licences — pathway progressing following May 2026 environmental approval and June 2026 PFS/Maiden Ore Reserve.
Aurum’s funded, self-sufficient growth model — A$54.7M cash (unaudited, 30 June 2026) — enables drilling, studies, and permitting to advance in parallel. The trajectory is clear: growing scale and confidence at Boundiali, with today’s results reinforcing that path forward.
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