Apollo Minerals Completes State-Backed Geophysics Survey at Couflens
Key Takeaways
- Apollo Minerals completed a 180 line-km helicopter-borne magnetic and radiometric survey across ~19km² of the Couflens Tungsten-Gold Project, carried out in collaboration with BRGM, France's national geological survey.
- The survey was funded under France's national mineral resources inventory programme (IRM Project), backed by the France 2030 government investment plan and supported by the EU's Critical Raw Materials Act — meaning Apollo received state-supported geophysics at no disclosed cost to the company.
- BRGM's Director General explicitly described Couflens as "a strategic national asset," signalling institutional recognition of the project's importance to France's critical minerals supply chain.
- The Salau mine within Couflens historically produced ~930,000 tonnes of ore at 1.5% WO3 — one of the world's highest-grade tungsten operations — across 24km of underground development, establishing the geological pedigree the new survey aims to extend.
- Two near-term workstreams follow the survey: geophysical data processing to refine exploration targets, and planning for an initial underground drill programme focused on the Véronique Zone, where assays have already returned grades up to 5.3% WO3.
Apollo partners with French national geological survey for high-resolution geophysics at Couflens
Apollo Minerals (ASX: AON) has completed a detailed helicopter-borne magnetic and radiometric survey at its 100%-owned Couflens Tungsten-Gold Project in France, carried out in collaboration with the French Geological Survey (BRGM) and its subsidiary BRGM Explore. The work was completed under France’s national mineral resources inventory programme (Inventaire des Ressources Minérales, the “IRM Project”), backed by the French Government’s France 2030 investment plan and supported by the European Union’s Critical Raw Materials Act (CRM Act, 2023).
Key survey parameters are summarised below:
| Survey Parameter | Detail |
|---|---|
| Line spacing (focused area) | 100m |
| Line spacing (regional area) | 500m (BRGM Pyrénées regional survey) |
| Total line-kilometres completed | 180 line-km |
| Coverage area | ~19km² |
| Survey type | Magnetic and radiometric (helicopter-borne) |
| Programme framework | IRM Project / France 2030 |
Results are anticipated to be received and processed in the coming months. The data is expected to greatly assist exploration targeting, refinement of geological models, and improvement of structural interpretations.
When big ASX news breaks, our subscribers know first
Why Salau and Couflens command attention
A former world-class tungsten operation
Tungsten is a dense, extremely hard metal used in industrial cutting tools, defence applications, and components central to the energy transition. It is classified as a critical raw material by the European Union, meaning secure domestic supply is a policy priority rather than a commercial nicety.
The Salau mine, located within Couflens, illustrates why this project draws attention. Société Minière d’Anglade operated the mine from April 1971 to November 1986, producing approximately 930,000 tonnes of ore at an average grade of 1.5% WO3 to yield approximately 13,950 tonnes of WO3 in concentrate — making it historically one of the world’s highest-grade tungsten operations. In total, approximately 24km of underground development was completed across seven levels.
The Couflens project is 100%-owned by Apollo Minerals, covers 42km² centred on the Salau mine, and sits 130km south of Toulouse in France’s Ariège department, near the border with Spain.
What the geophysics is looking for
The geological setting at Couflens is what makes airborne geophysics a logical tool here. The La Fourque granodiorite intrusion into the calcareous sediments of the Barregiennes Formation has produced skarn metamorphism along a roughly ~7km east-west trend within the Couflens permit. Locally, this intrusion is associated with pyrrhotite-rich sulphides that have the potential to be detected using airborne magnetic surveys.
Tungsten mineralisation at Salau occurs in two distinct forms, both of which the survey aims to better define:
- Disseminated scheelite within skarn (for example, the Bois de Anglade zone)
- Massive sulphide (pyrrhotite + scheelite) (for example, the Véronique Zone)
As illustrated in Figure 2 of the announcement (a regional schematic long section), the interpreted intrusions and associated skarn mineralisation suggest conceptual targets that extend laterally beyond currently known mineralised areas. The airborne magnetic data is intended to help define these potential extensions — targets that underground drilling alone would struggle to efficiently identify across such a broad corridor.
State backing signals Couflens’ strategic standing
The BRGM partnership is more than a technical arrangement. BRGM is mandated by the French State to carry out the national mineral resources inventory, and its decision to include Couflens within the IRM Project reflects an institutional assessment of the project’s strategic importance to France’s critical raw materials supply chain.
Catherine Lagneau, BRGM Director General
“As the national geological survey, BRGM is mandated for implementing the ambitious mineral resource national inventory program, a key initiative to secure the raw materials needed to face the ecological transition and for supporting the exploration of potential ore deposits under a contractual framework with the private companies which have been granted exploration licenses. In this framework, the Couflens Tungsten-Gold Project is a strategic national asset, and we are pleased to support the exploration program of Apollo Minerals.”
Christophe Poinssot, BRGM Deputy Director General
“We are pleased to see that the IRM Project already brings relevant and reliable geophysical data to promising exploration projects developed by junior mining companies including Apollo Minerals. With its high concentration in tungsten and other minor metals, as well as its potential lateral extensions, Couflens is a very promising project for securing the national supply of critical raw materials. As the national geological survey, BRGM is honoured to bring its long-standing expertise and knowledge to support the project.”
The EU CRM Act (2023) provides the broader policy context. Europe’s drive to reduce dependence on imported critical minerals — particularly from single-source jurisdictions — is translating into active state support for domestic exploration. The BRGM’s involvement at Couflens should be read in that light. Importantly, the relationship is a collaborative survey partnership under the IRM framework; no formal government funding or project approval has been announced.
Apollo’s ability to advance this collaborative programme with BRGM follows the court ruling that cleared the project of prior legal challenges, removing a significant overhang on exploration activity at Couflens.
The next major ASX story will hit our subscribers first
What comes next for Apollo at Couflens
Two near-term workstreams are underway following completion of the survey:
- Geophysical data processing and interpretation over the coming months — the magnetic dataset will be integrated with Apollo’s existing exploration databases to define target anomalies and refine geological models across the Couflens project area.
- Planning for an initial, low-impact underground drill programme focused on the Véronique Zone — the programme aims to expand currently known areas of mineralisation, twin existing historical drill holes, and test the mineralised width of the broader deposit. No timeline for the drill programme has been disclosed.
The Véronique Zone has already returned exceptional tungsten grades at Couflens, with assays reaching 5.3% WO3, reinforcing why the upcoming underground drill programme is focused on expanding mineralisation in that area.
Neil Inwood, Managing Director, Apollo Minerals
“We are grateful to the BRGM for their support in enabling Apollo Minerals to collaborate in this modern, geophysical survey over Couflens as part of the regional IRM Project. This important program will enable the Company to progress our understanding of the broader geological context of the deposit, as well as refining exploration targeting models. We look forward to future collaboration opportunities with the BRGM as we advance technical work programs over the strategically important Couflens Tungsten-Gold Project.”
Apollo has stated its intent to advance Couflens “in line with best-in-class environmental practices” in collaboration with the French State and local stakeholders — framing that reflects the regulatory and community expectations attached to critical minerals projects in France.
Ready to Learn More About Apollo Minerals’ Couflens Tungsten-Gold Project?
Apollo Minerals’ 100%-owned Couflens project carries genuine strategic weight — a historically world-class tungsten operation now backed by France’s national geological survey, state-supported geophysics, and a clear pipeline of exploration activity targeting high-grade extensions beyond the known Véronique Zone.
Explore the full detail on the project’s geology, BRGM partnership, and upcoming drill programme by visiting the Apollo Minerals (ASX: AON) company profile on Discovery Alert.