Sun Silver Hits 89m of Silver-Gold Plus 100m+ of Antimony Beyond Resource Boundary
Key Takeaways
- MV0004 returned 89m at 70g/t AgEq from 126.5m depth, including a higher-grade core of 38.3m at 100g/t AgEq, reinforcing the scale and continuity of Maverick Silver's existing 539Moz AgEq JORC Inferred resource.
- Antimony mineralisation in MV0004 commences approximately 60 metres above the current MRE boundary and accumulates across more than 100 metres of cumulative downhole intervals, pointing to a system that extends beyond the defined resource footprint.
- The reported antimony grades of approximately 0.06–0.07% Sb are comparable to the average Mineral Resource and Reserve grades at Perpetua Resources' Stibnite Gold Project, one of North America's most strategically discussed antimony projects.
- No antimony MRE has been estimated at Maverick Silver — the intercepts are exploration-stage findings requiring further drilling, geological interpretation, and metallurgical work before economic significance can be determined.
- Sun Silver's 2026 programme is actively testing extensional targets along strike and at depth, with the deposit remaining open in multiple directions beyond the current 539Moz AgEq resource boundary.
MV0004 delivers 89m of silver-gold mineralisation with 100m+ of antimony above the resource
Sun Silver (ASX: SS1) has reported assay results from hole MV0004 at its Maverick Silver Project in Nevada, returning 89m at 70g/t AgEq (49g/t Ag, 0.2g/t Au) from 126.5m depth. Nested within that broad intercept is a higher-grade zone of 38.3m at 100g/t AgEq from 134m, and a discrete very high-grade spike of 0.8m at 1,296g/t AgEq from 134m.
The result is the latest from Sun Silver’s ongoing 2026 exploration programme at Maverick Silver, a project hosting a 539Moz AgEq JORC Inferred Mineral Resource Estimate (MRE), located 85km from Elko, Nevada. Nevada was rated the #1 global mining jurisdiction by the Fraser Institute in 2025, and the project is surrounded by operations including Barrick’s Carlin Mine.
Beyond the silver-gold headline, MV0004 also intersected extensive antimony mineralisation beginning approximately 60m above the current MRE boundary and accumulating across more than 100m of cumulative downhole intervals.
Andrew Dornan, Managing Director
“MV0004 is another strong result from Maverick Silver, returning almost 90 metres of continuous silvergold mineralisation and reinforcing the scale and continuity of the current Resource. Importantly, the hole also intersected extensive antimony mineralisation commencing approximately 60 metres above the current MRE and extending across more than 100 metres of cumulative intervals.”
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Drilling intercepts in detail — silver, gold and antimony results from MV0004
The silver-gold results from MV0004, as reported in Table 1 of the announcement, are presented below.
| Hole ID | From (m) | Interval (m) | AgEq (g/t) | Ag (g/t) | Au (g/t) |
|---|---|---|---|---|---|
| MV-0004 | 126.5 | 89 | 70 | 49 | 0.2 |
| including | 134 | 38.3 | 100 | 73 | 0.3 |
| including | 134 | 0.8 | 1,296 | 1,270 | 0.3 |
The antimony intercepts from MV0004, beginning approximately 60m above the current MRE, were as follows:
- 43.7m at 0.06% Sb from 70.6m, including 19.3m at 0.1% Sb from 70.6m
- 64.7m at 0.06% Sb from 134m, including 16.5m at 0.1% Sb from 164.9m
The cumulative antimony mineralisation across these intervals exceeds 100m downhole. The announcement notes that the average grades across the reported intervals are comparable to the approximately 0.06–0.07% Sb average Mineral Resource and Reserve grades reported for Perpetua Resources Corp.’s (Nasdaq/TSX: PPTA) Stibnite Gold Project. This comparison is offered as a publicly available benchmark, not a direct peer assessment.
Earlier results confirming high-grade antimony at Maverick Springs established the mineralisation pattern that MV0004 has now extended, with cumulative downhole intervals building a more complete picture of the system’s lateral and vertical extent.
Critically, the antimony mineralisation in MV0004 commences well above the current MRE boundary and continues through the silver-mineralised sequence. That spatial relationship points to the potential for antimony mineralisation to extend beyond the limits of the currently defined silver-gold resource.
Why antimony matters — a critical mineral emerging within the silver resource footprint
Antimony is a metalloid element used across a range of strategic industries. Its primary end-uses include defence applications, energy storage, electronics manufacturing, and broader industrial processes.
What elevates antimony’s significance right now is the supply picture. The United States remains heavily dependent on imported antimony supply, which makes any domestic discovery with scale and continuity strategically notable. That context is precisely why Sun Silver has flagged antimony as a potentially significant additional component of the Maverick Silver Project.
It is important to be clear about what has been established and what has not. No antimony MRE has been estimated at Maverick Silver. The antimony intercepts reported from MV0004 represent an exploration-stage finding, and further drilling, geological interpretation and metallurgical work will be required before any economic significance can be determined. The comparison to Perpetua Resources’ Stibnite Gold Project is used solely to provide a publicly available grade reference point, not to imply equivalence between the two projects.
What the results do establish is that antimony mineralisation at Maverick Silver occurs over substantial widths, begins above the existing silver-gold MRE, and is associated with the same mineralised system. That is a meaningful exploration signal worth tracking.
What the results mean for Maverick Silver’s investment case
MV0004 adds a second dimension to the Maverick Silver investment thesis. The first pillar remains the existing 539Moz AgEq JORC Inferred resource — a globally significant silver inventory in a tier-one jurisdiction. The second, still emerging, is the antimony footprint that MV0004 has demonstrated extends beyond the current MRE boundary.
The results also validate Sun Silver’s geological model. Drilling successfully intersected predicted mineralised zones and, separately, identified mineralisation outside the current MRE constraints. The deposit remains open along strike and at depth, and the 2026 programme is actively testing those extensions.
The project’s record-breaking silver intercept, reported earlier in the 2026 programme, established the resource’s capacity to deliver high-grade zones within its broad mineralised envelope, a pattern that MV0004’s 0.8m spike at 1,296g/t AgEq reinforces.
The company has outlined the following priorities as part of its ongoing programme:
- Continue assessing antimony distribution, continuity and scale as multielement assays are received
- Test shallow antimony targets
- Extensional drilling northwest and southeast along the hinge
- Infill drilling in areas of interest
- Ongoing metallurgical assessment
Further drilling, geological interpretation and metallurgical work will be required to determine the potential economic significance of the antimony mineralisation.
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About the Maverick Silver Project
The Maverick Silver Project is located 85km from Elko, Nevada, and hosts a JORC Inferred MRE of 237Mt grading 45.5g/t Ag and 0.30g/t Au, for 347.2Moz of contained silver and 2.25Moz of contained gold, equating to 539Moz AgEq. The deposit remains open along strike and at depth.
Nevada was rated the #1 global mining jurisdiction by the Fraser Institute in 2025. The project is proximal to the prolific Carlin Trend and proximal to Barrick’s Carlin Mine, placing it firmly within one of the world’s most established gold and silver mining corridors.
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