Raptor Metals Samples Historic Core to Unlock Full Polymetallic Value at Chester
Key Takeaways
- Raptor Metals has commenced core cutting and multi-element sampling across 20 historic diamond drill holes at its 100%-owned Chester Project in New Brunswick, Canada, with the program starting 5 September 2026.
- Chester already hosts a JORC 2012 Mineral Resource of 6.685 Mt at 1.07% Cu, with the Indicated category alone containing 13.66 Mlbs lead, 10.52 Mlbs zinc and 69,000oz silver — metals not yet fully reflected in the resource valuation.
- Approximately 1,050 metres of archived core will be sampled for copper, lead, zinc, silver, cobalt, indium and other trace metals using four-acid digest with ICP-MS/ICP-OES analysis — no new drilling required.
- Assay results are anticipated within four to six weeks of sample dispatch, providing a defined near-term catalyst window for investors.
- If multi-element continuity is confirmed, the data will feed into an updated JORC 2012 Mineral Resource Estimate that could reframe Chester from a copper-focused asset to a fully characterised polymetallic VMS deposit.
Raptor Metals unlocks polymetallic potential at Chester with historic core sampling program
Raptor Metals (ASX: RAP) has commenced a core cutting and multi-element sampling program across 20 historic diamond drill holes at its 100%-owned Chester Project in New Brunswick, Canada. The program, which began on 5 September 2026, targets lead, zinc, silver, cobalt and indium within the existing Mineral Resource footprint — metals present in the deposit but not consistently assayed across the historic drill database. Assay results are anticipated approximately four to six weeks following sample dispatch.
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What Chester already holds
Chester is not a blank slate. The project already hosts a near-surface JORC 2012 Mineral Resource Estimate of 6.685 Mt at 1.07% Cu, encompassing both Indicated and Inferred categories at a 0.5% Cu cut-off grade.
Critically, the resource already contains lead, zinc and silver alongside copper — but complete multi-element assay coverage is absent across large portions of the historic drill database. This sampling program is designed to close that gap.
| Category | Tonnage | Grade (Cu) | Contained Cu | Other Metals Noted |
|---|---|---|---|---|
| Indicated | 4.87 Mt | 1.13% Cu | 120.28 Mlbs Cu | 13.66 Mlbs Pb, 10.52 Mlbs Zn, 69,000oz Ag |
| Inferred | 1.82 Mt | 1.01% Cu | 38.35 Mlbs Cu | 3.17 Mlbs Pb, 1.57 Mlbs Zn |
| Total | 6.685 Mt | 1.07% Cu | N/A | Cut-off grade: 0.5% Cu |
The polymetallic character of Chester is already embedded in the resource numbers. What this program seeks to establish is whether that character extends consistently across the full deposit — something the historic assay data simply cannot answer in its current state.
What is a VMS deposit and why does it matter here?
A volcanogenic massive sulphide (VMS) deposit forms on the ocean floor when superheated volcanic fluids mix with cold seawater, causing metals to precipitate and concentrate in one location. The result is a single deposit that can carry copper, zinc, lead and silver together, rather than any one metal in isolation.
That multi-metal character is what makes VMS systems commercially attractive. More metals per tonne of rock processed means more revenue streams and potentially stronger project economics.
The Bathurst Mining Camp in New Brunswick is one of the most significant VMS districts in the world. It hosts historic producers including Brunswick No. 12, Heath Steele and Caribou — all polymetallic VMS deposits carrying zinc, lead, copper and silver. Chester sits within this same geological setting, with its mineralisation interpreted as a stacked VMS system.
The deposit comprises three principal mineralised zones: the Central Zone, the East Zone and the Copper Stringer Zone. The Copper Stringer Zone is interpreted as a feeder zone associated with the VMS lenses — a structural characteristic consistent with the broader Bathurst Camp geology. This interpretation is supported by talc, sericite and intense chlorite alteration, alongside disseminated and stringer chalcopyrite mineralisation within the zone.
For investors, the distinction matters. A confirmed polymetallic VMS system carries a fundamentally different value proposition to a single-commodity copper deposit. Demonstrating multi-metal continuity across Chester could reframe how the asset is evaluated.
Program details and what comes next
The sampling program follows a structured five-step workflow:
- Retrieval and re-logging of relevant historic core intervals
- Cutting of archived core to generate half-core samples
- Preparation and submission of samples to an accredited independent laboratory
- Multi-element analysis for copper, lead, zinc, silver, cobalt, indium and other base and trace metals
- Validation and interpretation of new assay results alongside the existing Chester geological and assay database
Key program specifics include:
- 20 historic diamond drill holes selected, all within the current Mineral Resource footprint
- Selection based on logged intervals interpreted as massive sulphide mineralisation
- Approximately 1,050 metres of core to be sampled
- Analysis method: four-acid digest with ICP-MS/ICP-OES for base and trace metals; silver via fire assay or aqua regia ICP-MS
On timing:
- Program commenced: 5 September 2026
- Assay results anticipated: approximately four to six weeks post sample dispatch
- Subject to results: data to be incorporated into an updated Mineral Resource Estimate for Chester, reported under JORC 2012
Brett Wallace, Managing Director
“Chester already hosts a robust, JORC-compliant copper resource containing a broader suite of metals not yet reflected in its copper-focused Mineral Resource. The Bathurst Mining Camp is renowned for its polymetallic VMS endowment, and much of our historic core has simply never been tested for zinc, lead, silver, cobalt or indium. If this program confirms continuity across the deposit, it potentially provides a more complete picture of Chester’s polymetallic endowment and support future Mineral Resource evaluation…”
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The investment case for Chester’s polymetallic re-rating
Several factors make this program worth tracking for investors considering exposure to Chester.
Cost efficiency is the starting point. No new drilling is required. The company is working with archived core already in hand, meaning the program generates new geochemical data at a fraction of the cost of a drilling campaign.
The potential resource re-rating is the prize. An updated, multi-element Mineral Resource Estimate incorporating copper, lead, zinc, silver, cobalt and potentially indium would reflect a more complete picture of Chester’s value. Several of those metals — cobalt and indium in particular — carry strong strategic demand in the context of battery technology and semiconductor supply chains, though any resource update remains subject to what the assay results actually show.
The program builds on recent work. According to the announcement, this sampling effort complements recent drilling, geophysics and metallurgical work already completed at Chester, positioning the next phase of geological modelling on a broader data foundation.
The news flow is near-term. With assay results anticipated within weeks of sample dispatch, concrete data should be available within weeks of sample dispatch — a defined catalyst window for a program already underway.
The key qualifier to hold in mind: this program may confirm polymetallic continuity, or it may not. The company has been clear that the data will inform a potential updated Mineral Resource Estimate, not guarantee one. The investment case here rests on what the assays reveal.
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