OD6 Metals Files US Drilling Permit for High-Grade Nevada Fluorspar Project
Key Takeaways
- OD6 Metals lodged its Plan of Operations with the U.S. Forest Service on 15 September 2026, formally entering the federal approval process required before any drilling can commence at the 100%-owned Quinn Fluorspar Project in Nevada.
- The proposed program covers up to 139 drill pads targeting the Horseshoe–Mammoth mineralised trend, with approximately 10,000 metres of priority drilling planned and the flexibility to complete multiple holes from individual pads.
- OD6 is targeting a Categorical Exclusion determination — the fastest NEPA pathway — which would exempt the project from full environmental impact assessments and materially compress the timeline to drilling approval.
- All planned biological and cultural baseline field surveys are complete, with final reports targeted for USFS submission in October 2026; the surveys carry a 10-year validity period covering both drill and mine permitting.
- The U.S. imports 100% of its fluorspar domestically, with more than 60% of global supply sourced from China — positioning Quinn as a strategically significant domestic critical minerals asset ahead of maiden drilling.
Permitting milestone reached as OD6 targets maiden drilling at Quinn
OD6 Metals (ASX: OD6) has submitted its Plan of Operations (PoO) to the U.S. Forest Service (USFS), marking a major permitting milestone at the company’s 100%-owned Quinn Fluorspar Project in Nevada, USA. The submission, lodged on 15 September 2026, seeks approval for a maiden drilling and bulk-sampling program covering up to 139 drill pads targeting the Horseshoe–Mammoth mineralised trend along strike and at depth.
The significance of this program extends beyond routine drilling. Only four shallow historical drill holes exist at Horseshoe, meaning the proposed program will systematically drill test a largely untested high-grade fluorspar system. The PoO combines a resource-definition drilling component with a bulk-sampling component, making this a dual-purpose submission designed to advance both geological and metallurgical understanding simultaneously.
Managing Director Brett Hazelden
“Submission of the Plan of Operations is a major milestone for Quinn and moves OD6 another important step closer to drilling what we consider to be an exceptional high-grade U.S. fluorspar opportunity.”
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What the PoO covers — drilling, bulk sampling, and environmental baseline
The PoO is a dual-purpose application.
The drilling program is designed to establish:
- Geometry and orientation of the principal fluorspar mineralised zones
- Mineralised widths and grade distribution
- Geological and grade continuity along strike and at depth
- Relationships between high-grade surface mineralisation and historical drilling
- Potential extensions beyond currently defined mineralised areas
- Representative material for ongoing mineralogical, beneficiation, and metallurgical studies
The 139 drill pads have been designed with flexibility in mind, allowing multiple holes to be completed from individual pads. This approach minimises surface disturbance while maximising the geological information obtained from each location.
The 139 pad design draws on systematic surface work that identified high-priority drill targets at Quinn through soil geochemistry anomalies and structural mapping, allowing the program to focus metres on the most prospective corridors within the Horseshoe-Mammoth trend.
The bulk-sampling component is separately designed to generate representative fluorspar material for ore sorting, beneficiation, and comprehensive metallurgical testwork, building toward potential Metspar and Acidspar product pathways.
On the environmental side, all planned biological and cultural baseline field surveys are complete, with final reports targeted for submission to the USFS in October 2026. Specialist U.S. environmental and permitting consultant WestLand Engineering & Environmental Services conducted the surveys across a broader area than strictly required for the initial drilling program. That broader scope means the completed surveys can support future development permitting activities and carry a 10-year validity period covering both drill and mine permitting.
The table below summarises the status of each permitting milestone in OD6’s front-end loading strategy:
| Permitting Milestone | Status |
|---|---|
| Specialist U.S. permitting consultant WestLand appointed | ✓ Complete |
| Initial engagement with U.S. Forest Service | ✓ Complete |
| Pre-Plan Letter submitted to USFS | ✓ Complete |
| Biological baseline field surveys | ✓ Complete |
| Cultural baseline surveys | ✓ Complete |
| Drill pads, bulk sampling and access designed | ✓ Complete |
| Plan of Operations submitted | ✓ Complete |
| USFS technical and environmental review | Commencing |
| Categorical Exclusion pathway | Targeted |
| Potential FAST-41 Transparency status | Engagement Commenced |
| Drilling and bulk-sampling approvals | Pending |
| Maiden OD6 drilling program and bulk-sampling | Following Approvals |
Understanding the U.S. federal permitting process — and why it matters for investors
Mining exploration on U.S. Forest Service land requires federal approval before any drilling can commence. The governing framework is 36 CFR Part 228, Subpart A, which covers locatable minerals on Forest Service land. A Plan of Operations is the formal application a company submits to the USFS outlining its proposed exploration activities, including drill pad locations, access routes, disturbance footprint, and reclamation plans. Without USFS approval of the PoO, drilling cannot legally proceed.
Once received, the USFS has an initial 30-day review period to assess the submission. Depending on its findings, the agency may approve the plan, request modifications or additional information, or determine that further review is required.
OD6 is targeting approval through a Categorical Exclusion (CE) pathway. A CE determination by the USFS exempts routine or low-impact mineral projects from detailed National Environmental Policy Act (NEPA) environmental assessments or impact statements — the more time-consuming and resource-intensive review processes that apply to larger or higher-impact projects. Qualifying for a CE is a meaningful efficiency advantage; it removes a significant source of time and cost uncertainty on the road to drilling approval.
Separately, OD6 has commenced initial engagement regarding potential future inclusion of Quinn within the FAST-41 Transparency Program, administered by the U.S. Federal Permitting Improvement Steering Council. If subsequently granted, FAST-41 status could provide enhanced coordination between OD6 and relevant federal agencies, a comprehensive permitting timetable, public milestone tracking through the Federal Permitting Dashboard, and access to a dedicated Permitting Council project advisor. Importantly, no FAST-41 designation has presently been granted, and any future inclusion remains subject to assessment and acceptance by the Permitting Council.
Permitting progress in context — Quinn advancing on multiple fronts
Permitting is one of several parallel workstreams advancing simultaneously at Quinn. Key active workstreams include:
- Exploration and resource definition: up to 139 drill pads proposed across priority targets, with multiple holes possible from individual pads
- Bulk sampling: approval sought for representative material to support larger-scale metallurgical development
- Permitting: PoO submitted and all planned biological and cultural baseline field surveys completed
- Ore sorting: evaluation of the potential to reject waste and upgrade mineralised feed prior to downstream processing
- Metallurgy: comprehensive beneficiation testwork evaluating pathways towards Metspar and premium Acidspar products
- U.S. Government engagement: ongoing engagement regarding relevant U.S. critical minerals initiatives and potential FAST-41 Transparency status
- Future development studies: progressively establishing the geological, metallurgical, environmental, and regulatory information required to assess potential development pathways
Managing Director Brett Hazelden
“With up to 139 drill pads, around 10,000m of priority 1 drilling and the ability to complete multiple holes from individual pads, the proposed program provides substantial flexibility to undertake both resource-definition and exploration drilling while minimising additional surface disturbance.”
Near-term next steps for the project include responding to any USFS requests for additional information, progressing the targeted CE determination, finalising drill targeting and sequencing across the 139 proposed pads, progressing State and other ancillary approvals required prior to drilling, continuing FAST-41 engagement, and preparing for mobilisation of the maiden drilling program following receipt of all required approvals.
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Why Quinn matters — the fluorspar supply gap hiding in plain sight
The U.S. currently imports 100% of all fluorspar consumed domestically, with more than 60% of global supply sourced from China. That concentration of supply in a single geopolitical counterparty has placed fluorspar squarely on the U.S. critical minerals list, alongside materials like lithium and rare earths.
Fluorspar is not a niche industrial input. It is essential for hydrofluoric acid production, AI semiconductor manufacturing, advanced battery technologies, uranium enrichment, defence systems, and refrigerants. The breadth of those end-use applications means demand is tied to multiple high-growth technology and defence themes simultaneously.
Against that backdrop, a domestic, high-grade fluorspar project in Nevada — ranked 2nd globally in the Fraser Institute 2025 Mining Attractiveness Index — with an advancing federal permitting process represents a strategically significant asset. Quinn hosts the Horseshoe, Mammoth, and Big Jim deposits, with historical drilling, channel sampling, and testwork confirming significant high-grade mineralisation and potential for both Metspar and premium Acidspar products. The submission of the PoO moves the project from surface exploration into the formal federal approval pathway that precedes maiden drilling.
For investors wanting to understand the full scope of Quinn’s geological footprint before drilling commences, our deep-dive into Quinn’s district-scale potential covers the tenure expansion, key target corridors, and the strategic rationale behind OD6’s Nevada consolidation in detail.
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