TechGen Metals Moves Drill Rig to Larger Blue Devil Copper-Gold Target
Key Takeaways
- Drill hole BDDD001 at Red Devil reached 375.1 metres and found widespread pyrite explaining the IP anomaly, but no copper mineralisation was observed — the target is effectively set aside pending multi-element assay results.
- The drill rig has moved to Blue Devil (BDDD002), a larger target comprising three late-time EM conductors spanning 2.75km of strike, sitting approximately 150 metres above an interpreted magnetic intrusion.
- Blue Devil is supported by coincident copper and gold geochemistry across soil, stream sediment, and rock chip samples, plus satellite alteration studies identifying a distinct footprint aligned with the conductors.
- TechGen has secured WA State Government Exploration Incentive Scheme (EIS) co-funding for BDDD002, and the company is fully funded for this campaign and additional gold target drilling planned for Q4 2026.
- No other company has previously drilled this part of the Olympio Formation, meaning BDDD002 results will generate genuinely new geological knowledge regardless of outcome.
Drilling begins at Blue Devil as Red Devil hole wraps up
TechGen Metals (ASX: TG1) has commenced drilling at its Blue Devil copper-gold target (hole BDDD002) while simultaneously reporting the completion of drill hole BDDD001 at the adjacent Red Devil target, reaching a final depth of 375.1 metres. Both targets sit within the company’s Blue Devil Project, located 40km northeast of Halls Creek in the East Kimberley region of Western Australia, covering a combined licence area of 195km². The company is fully funded for this drilling campaign and additional gold target drilling planned for Q4 2026.
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Q4 2026 drilling campaign: two targets, two different stories
Red Devil (BDDD001) — hole completed at 375.1 metres
Drill hole BDDD001 reached its final depth of 375.1 metres, intersecting a sequence of interbedded sandstones, siltstones and mudstones interpreted as the Olympio Formation of the Halls Creek Group. The first 38 metres of the hole was strongly to moderately weathered, with fresh rock below that depth.
The key finding from BDDD001 is that the IP chargeability anomaly that originally identified this target has been explained by the widespread presence of pyrite, occurring as bands within mudstone units, disseminations within siltstones and sandstones, blebs and spots, and along drill core fractures throughout the hole. No copper mineralisation was observed.
Selected sections of interest will be sent for multi-element assay, including gold, keeping the door open on this target. The simplified geological log is summarised below.
| From (m) | To (m) | Lithology | Sulphides Observed |
|---|---|---|---|
| 0 | 16 | Sandstone / Siltstone | Pyrite on core fractures (1%). Pyrite in quartz veins (Trace). |
| 16 | 38 | Mudstone / Siltstone | Pyrite as bands in mudstone (1%). Pyrite disseminated (Trace – 3%). Pyrite on core fractures (1%). |
| 38 | 91 | Siltstone / Sandstone | Pyrite as bands in mudstone (1%). Pyrite disseminated (Trace – 3%). Pyrite on core fractures (trace – 3%). |
| 91 | 134 | Sandstone / Siltstone / Mudstone | Pyrite disseminated in sandstone (2–5%). Pyrite on core fractures (Trace – 2%). Pyrite in quartz veins (Trace). |
| 134 | 188 | Mudstone / Siltstone / Sandstone | Pyrite disseminated in sandstone (Trace – 2%). Pyrite on core fractures (Trace – 1%). Pyrite as blebs & spots in siltstone & mudstone (1–2%). |
| 188 | 210 | Mudstone / Siltstone / Sandstone | Pyrite as blebs & spots in siltstone & mudstone (1–2%). |
| 210 | 295 | Siltstone / Sandstone / Mudstone | Pyrite disseminated (Trace – 3%). Pyrite in quartz veins (Trace). |
| 295 | 375.1 | Mudstone / Siltstone / Sandstone | Not reported in source for this interval. |
Source: Table 1, TechGen Metals ASX Announcement, 9 September 2026. Note: sulphide descriptions for the 210–375.1m intervals were not detailed in the source’s summary log.
Blue Devil (BDDD002) — drilling now underway at the larger target
With BDDD001 wrapped up, the drill rig has moved to the more technically compelling Blue Devil target. The announcement describes Blue Devil as a larger target than Red Devil, comprising three strong late-time airborne electromagnetic (EM) conductors coincident with copper and gold geochemical anomalies.
Key technical characteristics of the Blue Devil target include:
- Three discrete late-time EM conductors sitting approximately 150 metres above an interpreted magnetic intrusion
- Conductors extending over 2.75km of strike, providing genuine scale potential if mineralisation is encountered
- Supported by anomalous copper and gold soil, stream sediment, and rock chip geochemistry
- Satellite alteration studies identifying a distinct alteration footprint coincident with the EM conductors
- BDDD002 has received WA State Government Exploration Incentive Scheme (EIS) co-funding
The announcement also notes that no other company has previously drilled this part of the Olympio Formation, meaning every metre of core generates genuinely new geological knowledge for this target area.
Ashley Hood, Managing Director
“With the rig now at the Blue Devil target, exploration of this large, highly conductive target can begin. It is certainly an interesting model, as no other company has ever drilled this part of the Olympio Formation. Every piece of new geological data therefore assists with both new and ongoing target modelling. The geochemistry at Blue Devil his favourably complex, supported by an intrusion at depth, with a highly conductive body wrapping around this magnetic feature. The maiden exploration drilling of this larger Blue Devil target is expected to be at target depth late this week, extending into the weekend depending on drilling conditions. We are looking forward to seeing what the drilling reveals and, importantly, how the results will further refine our understanding of this large and highly conductive target.”
What makes a copper-gold EM target worth drilling?
The WA State Government EIS co-funding is also worth noting for investors. This programme provides financial support to explorers drilling genuinely novel targets, and the Blue Devil target has received this funding.
Why does coincident geochemistry strengthen the case for Blue Devil? Because EM alone tells you there is a conductive body, but anomalous copper and gold in soils, stream sediments, and rock chips suggests those metals are actually present at or near surface. When geophysics and geochemistry point to the same location, the probability of finding economic mineralisation at depth improves meaningfully.
The widespread pyrite encountered at Red Devil explained the IP chargeability anomaly at that target. No copper mineralisation was observed.
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What comes next for TechGen investors
The near-term newsflow for TechGen centres on four items:
- BDDD002 (Blue Devil) results — the announcement, dated 9 November 2023, indicated the rig was expected to reach target depth later that week, with results anticipated imminently
- Multi-element assay results for BDDD001 — selected Red Devil intervals, including gold assays, are pending from the laboratory
- Additional gold target drilling planned for Q4 2026 within the broader project area
- Geological modelling refinement — BDDD002 results will further inform the team’s understanding of the Blue Devil conductors and any future drill targets
The company has confirmed it is fully funded for this campaign and the planned Q4 2026 gold target drilling, which reduces near-term dilution risk for existing shareholders. No assay results have been reported to date, and investors should note the exploration programme remains in an active, results-pending phase. No conclusions about mineralisation can be drawn until laboratory data is received and released.
Ready to Learn More About the Blue Devil Copper-Gold Project?
TechGen Metals (ASX: TG1) is drilling the Blue Devil target, a large-scale EM conductor system spanning 2.75km of strike with coincident copper and gold geochemistry in Western Australia’s East Kimberley region. With WA State Government EIS co-funding secured and the company fully funded for its Q4 2026 campaign, this is an active exploration story with results pending imminently.
Explore TechGen’s project portfolio, technical data, and latest announcements by visiting the TechGen Metals investor profile on Discovery Alert to stay across developments as drilling results are released.