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Castle Minerals
Investor Insight
Castle Minerals is a compelling investment opportunity, underlined by its 100 percent ownership of two high-potential gold projects, a seasoned management team with a track record of success, and a strategic location near multi-million-ounce gold deposits.
Overview
Castle Minerals (ASX:CDT) is an Australia-based exploration company dedicated to advancing high-value gold projects in Ghana, West Africa. The company holds a 100 percent interest in a highly strategic 2,686 sq. km land package within Ghana’s Upper West region, a significantly under-explored yet highly prospective geological setting within the West African gold belt.
Castle Minerals’ core mission is to identify, explore and develop economically viable gold deposits, leveraging the region’s rich mineralization and proven mining history. The company's management team brings extensive experience and a strong track record of successful discoveries, ensuring that exploration efforts are guided by industry-leading expertise and strategic execution.
Castle’s portfolio is centered around its flagship Kpali and Kandia gold projects, both of which exhibit strong potential for resource expansion and economic development. These projects are situated within prolific gold-bearing structures and have demonstrated high-grade mineralization through extensive exploration efforts. With a focus on systematic exploration, the company aims to delineate and expand resources while positioning itself as a leading player in Ghana’s growing gold industry. Castle’s commitment to sustainable exploration practices and strong community engagement further enhances its ability to operate effectively in the region.
Company Highlights
- 100 percent ownership of a 2,686 sq km strategic landholding in Ghana’s highly prospective Upper West region.
- Flagship Kpali and Kandia gold projects with high-grade gold mineralization and significant resource expansion potential.
- Strong management team with a proven track record in West African gold discoveries and project development.
- Proximity to the multi-million-ounce Black Volta gold project, enhancing economic potential and development synergies.
- Robust exploration pipeline with systematic drilling programs aimed at resource expansion and near-term development.
- Commitment to sustainable and responsible exploration practices, with strong community and government engagement.
- Positioned to capitalize on the growing global demand for gold through disciplined exploration and strategic partnerships.
Key Projects
Kpali Gold Project
The Kpali gold project, a cornerstone of Castle Minerals' exploration efforts, is strategically located approximately 30 kilometers west of the regional town of Sawla in Ghana's Upper West region. Encompassing the Kpali and Bundi prospects, along with several satellite discoveries, the project area lies within the 170 sq km Degbiwu prospecting license (PL 10/26), which is encircled by the 1,033 sq km Gbiniyiri retention license (RL 8/27). Notably, the western boundaries of these licenses are delineated by the Black Volta River, marking the border with Burkina Faso.
Geologically, Kpali is situated at the convergence of two significant greenstone belts — the Bole-Bolgatanga and Wa-Lawra/Boromo belts — and three regional-scale structures. This unique positioning is associated with several major Birimian-hosted gold deposits in the region, enhancing the project's potential for substantial gold mineralization.
Recent exploration activities have yielded promising results. In February 2025, an eight-hole reverse circulation (RC) drilling program intersected shallow, high-grade mineralization in all holes. Notable intercepts include 12 meters at 8.29 grams per ton (g/t) gold from 25 meters, including 6 meters at 11.60 g/t gold from 31 meters, with a peak 1-meter intercept of 20.43 g/t gold at 36 meters. These findings have significantly upgraded the status of the Kpali gold prospect, suggesting the presence of multiple sub-parallel lodes with high-grade gold mineralization.
The broader district encompassing Kpali contains several other high-conviction prospects, reinforcing its potential as an emerging new exploration frontier. Castle Minerals plans to undertake further drilling programs, including step-out drilling, to delineate the extent of mineralization and assess the project's viability for future development.
In summary, the Kpali Gold Project's strategic location, favorable geology, and recent high-grade drilling results position it as a significant asset within Castle Minerals' portfolio, with the potential to evolve into a major gold production site in Ghana.
Kandia Gold Project
The Kandia gold project is situated in Ghana's Upper West Region. Discovered in 2010 during reconnaissance field mapping, the project encompasses a 16-kilometer-long corridor along a significant granite-sediment contact within Birimian greenstone terrain. This geological setting is known for hosting substantial gold mineralization, with the Kandia prospect itself identified through previously unknown artisanal workings spread over approximately 600 meters of strike.
Initial exploration efforts included extensive soil sampling, airborne geophysical surveys and RC drilling, totaling 264 holes over 19,541 meters. These activities led to the identification of two primary mineralized zones: the "4,000 Zone" and the "8,000 Zone."
Strategically, the Kandia project benefits from its proximity to major gold deposits. The 5.1-million-ounce Namdini gold project lies to the northeast on the same Bole-Bolgatanga greenstone belt, while the 2.8-million-ounce Black Volta gold project's Julie deposit is immediately along strike from the Kandia mineralized trend. This favorable location enhances Kandia's economic attractiveness and potential for development synergies.
Future exploration plans for Kandia involve extensional drilling at the "4,000 Zone" and targeted drilling in other areas with historically wide-spaced shallow drilling, such as the "8,000 Zone," where artisanal mining activities are also present. The primary objective is to delineate multiple near-surface, open-pitable deposits along the 16-kilometer prospective contact, advancing the project toward potential development.
Management Team
Stephen Stone - Executive Chairman
Stephen Stone has more than 30 years of experience in mining and exploration. As the former managing director of Azumah Resources, he led the discovery of a 2.5 Moz gold resource and 1.2 Moz ore reserve at the Wa gold project His expertise in West African gold exploration and project development is instrumental in guiding Castle’s strategic direction.
Matthew Horgan - Non-executive Director
Matthew Horgan brings a strong background in engineering, business development, and investor relations. His experience in strategic corporate growth and resource sector financing supports Castle’s development initiatives.
James Guy - Non-executive Director
James Guy is a geologist with extensive expertise in mining and exploration, specializing in gold and base metals projects across Africa and Australia. He has held senior executive positions with several ASX listed junior resources companies and with banking group, NR Rothschild & Sons. He is currently principal of James Guy & Associates
David Renner - Non-executive Director
David Renner has a strong track record in operations and corporate strategy for resource development. He is a key contributor to advancing the Kambale graphite project.
Hector Nyinaku, Non-executive Director
Hecto Nyinaku focuses on administration, finance and logistics within the mining industry. His strong networks in Ghana’s resource sector provide valuable operational support.
George Asomoah Boadu - Manager of Geology
George Asomoah Boadu has extensive field experience in Ghana’s gold and graphite exploration projects. His expertise is integral to defining Castle’s resource base and implementing effective exploration strategies.
Advancing strategic gold exploration assets in Ghana’s prolific Upper West region
Piche Resources
Investor Insight
With high-quality, drill-ready assets with world-class discovery potential, Piche Resources is a compelling business case for investors looking to leverage a bull market for uranium and gold.
Overview
Piche Resources (ASX:PR2) is an ASX-listed mineral exploration company focused on uranium and gold exploration in Tier-1 jurisdictions: Western Australia and Argentina. The company holds 100 percent ownership of all of its projects and is supported by a highly experienced board and technical team.
Targeting globally significant discoveries in Tier-1 mineral provinces
Piche’s portfolio includes the advanced-stage Ashburton uranium project in Western Australia and two large-scale exploration projects in Argentina: the Cerro Chacon gold-silver project and the Sierra Cuadrada uranium project. These projects have delivered high-grade exploration results and are drill-ready, positioning the company to unlock significant shareholder value through systematic exploration programmes.
Piche has an internationally recognized board focused on creating long-term shareholder value, and an in-country technical team in Argentina with a proven track record of taking projects from discovery through to development.
Company Highlights
- Flagship Ashburton uranium project in Western Australia with recent high-grade drilling results over wide intercepts.
- Sierra Cuadrada uranium project in Argentina showing extensive near-surface mineralisation with assays up to 2.86 percent U₃O₈.
- Cerro Chacon gold-silver project with high-grade surface results (up to 11.65 g/t gold and 333.7 g/t silver) across a 14 km mineralised corridor.
- Fully permitted and EIA-approved for drilling at Cerro Chacon (Chacon South and Middle).
- Large, 100-percent-owned tenement package across all projects (Ashburton: 335 sq km; Cerro Chacon: 414 sq km; Sierra Cuadrada: 1,310 km²).
- Board of directors includes former leaders of Peninsula Energy, Orano, Rio Tinto Uranium and Barrick Gold.
- Upcoming drill campaigns planned at Cerro Chacon and Ashburton to test multiple high-priority targets.
- Well positioned for growth in the context of a strengthening uranium and gold price environment.
Key Projects
Gold: Cerro Chacon, Argentina
Cerro Chacon interpreted geology and tenement holding
Cerro Chacon is a large-scale, early-stage gold-silver exploration project located in the Chubut Province of Argentina. The project is situated within a region known for hosting world-class low-sulphidation epithermal systems, including Cerro Negro and Cerro Vanguardia. With multiple gold-bearing structures confirmed over a 14 km corridor, Cerro Chacon is emerging as a highly promising and underexplored precious metals system with substantial scale and grade potential.
Project Highlights
Location: ~40 km southwest of Paso de Indios, Chubut Province
Tenure: 414 sq km across multiple tenements
Highlights:
- A 14 km-long mineralised corridor has been delineated across Chacon Grid, La Javiela and Toro Hosco prospects.
- High-grade geochemical results include:
- 11.65 g/t gold and 120.3 g/t silver at Toro Hosco
- 333.7 g/t silver, 9.48 percent lead, and 8.57 percent zinc at La Javiela South
- Maiden RC drilling programme of 57 holes (7,905 m) scheduled across three main targets:
- Chacon Grid: 45 holes (5,590 m)
- La Javiela: 8 holes (1,740 m)
- Toro Hosco: 4 holes (575 m)
- EIA approvals for Chacon South and Chacon Middle were received in May 2025, enabling drilling to proceed.
- Vein systems range from 2 to 6 km in strike length and up to 50 m in width; hosted within structurally controlled low-sulphidation epithermal veins (LSEV).
Uranium: Ashburton Project, Australia
The Ashburton project is Piche’s flagship uranium exploration asset in Australia, situated in the Pilbara region of Western Australia. Located within a historically underexplored but highly prospective unconformity-related uranium district, the project provides the company with strong leverage to the growing global demand for uranium. The project is geologically analogous to world-class Proterozoic uranium systems, with multiple confirmed mineralised zones and a regional corridor of 60 km.
Project Highlights
- Location: Pilbara region, ~1,150 km north of Perth
- Tenure: 335 sq km following the recent application for tenement E52/4461 (214 sq km), adding to the existing 122 sq km holdings.
- Highlights:
- 2024 RC and diamond drilling confirmed high-grade uranium mineralisation at multiple stratigraphic levels.
- Best intercepts include:
- 3.45 m @ 5,129 ppm eU₃O₈ from 137.62 m (ARC006)
- 10.48 m @ 1,412 ppm eU₃O₈ from 114.30 m (ADD005)
- 2.42 m @ 2,681 ppm eU₃O₈ from 155.10 m (ADD003).
- 7.86 m @ 2,266 ppm eU₃O₈ from 105.42 m (ADD006)
- The company has outlined a 60 km structural corridor hosting multiple uranium occurrences including Angelo A & B, Canyon Creek, Ristretto and Atlantis.
- Atlantis prospect: historical drilling returned up to 7,400 ppm U₃O₈ over 2.2 m; rock chip samples have returned up to 37 percent U₃O₈.
Uranium: Sierra Cuadrada, Argentina
Sierra Cuadrada is Piche’s primary uranium asset in Argentina, covering a vast area within the San Jorge Basin. This large-scale project has demonstrated strong surface uranium mineralisation with multiple drill-ready prospects. With mineralisation confirmed across extensive zones and supported by historical radiometric and geochemical data, Sierra Cuadrada has the potential to host multiple Tier-1 uranium deposits in a cost-effective, near-surface setting.
Teo 5 and 6 prospect 2024 auger drill programme
Project Highlights:
Location: San Jorge Basin, ~200 km north of Comodoro Rivadavia
Tenure: 1,310 sq km across multiple licences
Highlights:
- The project area contains broad, flat-lying mineralisation at multiple stratigraphic levels.
- High-grade uranium assays include:
- 28,650 ppm U₃O₈ (2.86 percent) from rock chip sampling at Teo 8
- 24,017 ppm U₃O₈ from channel sampling
- 2,772 ppm U₃O₈ over 0.5m from auger drill sample
- Mineralised zones extend over a strike of 60 sq km, with confirmed targets on the majority of tenements.
- 2024 auger drilling and sampling confirmed uranium continuity across a sandstone and conglomerate sedimentary package with 14 samples exceeding 200 ppm U₃O₈.
- Rock chip sampling has returned 114 samples >200ppm U₃O₈
- RC drilling is planned to follow up on anomalies identified in the auger and channel sampling programmes.
Management Team
John (Gus) Simpson – Executive Chairman
John Simpson has over 37 years of experience in mineral exploration, development and mining. Previously the executive chairman and founder of Peninsula Energy Limited (ASX:PEN), a USA uranium producer.
Stephen Mann – Managing Director
Stephen Mann is a geologist with over 40 years of experience in exploration, discovery and development of mining projects, including 20 years in the uranium sector. Formerly the Australian managing director of Orano, the world’s third-largest uranium producer.
Pablo Marcet –Executive Director
Pablo Marcet is a senior geoscientist with 38 years of experience in exploration, discovery and development of mineral deposits. Currently an independent director of lithium producer Arcadium Lithium (NYSE:ALTM) and previously a director of Barrick Gold (NYSE:GOLD) and U3O8 (TSX:UWE).
Clark Beyer – Non-executive Director
Clark Beyer is an internationally recognized nuclear industry executive with over 35 years of experience. Formerly the managing director of Rio Tinto Uranium and currently principal of Global Fuel Solutions, providing strategic consulting to the international uranium and nuclear fuels market.
Stanley Macdonald – Non-executive Director
Stanley Macdonald is a nationally recognized mining entrepreneur, founding director and instrumental in the success of numerous ASX-listed companies, such as Giralia Resources, Northern Star and Redhill Iron. He is currently a director of Zenith Minerals.
Sranan Gold: Unlocking Suriname’s Next Multi-Million-Ounce Discovery in the Guiana Shield
Sranan Gold (CSE:SRAN,FSE:P84) is a junior exploration company focused on Suriname, a South American country that produces over 600,000 ounces of gold annually. The company’s flagship project is located in the highly prospective Guiana Shield, one of the world’s most underexplored and gold-rich geological regions.
Sranan’s 29,000-hectare Tapanahony gold project sits atop a historic mining belt with strong geochemical and structural markers. Leveraging local knowledge, legacy drill data, and modern exploration tools, the company aims to define its first gold resource along a 4.5 km mineralized corridor.
Backed by the discovery team behind Suriname’s major deposits—Merian, Rosebel, and Saramacca—Sranan is targeting hard-rock gold beneath saprolite zones, with plans to accelerate drilling, grow its land position, and deepen community ties.
Company Highlights
- District-scale land position: The 29,000-hectare Tapanahony project covers one of Suriname’s oldest and most productive artisanal mining districts, offering untested hard-rock upside within the Guiana Shield, home to numerous multi-million-ounce gold deposits.
- Immediate drill targets: A 10,000-metre diamond drilling program is set to kick off in 2025 across the 4.5 km Poeketi-Randy trend, targeting high-grade shear zones validated by historic IAMGOLD drilling.
- World-class discovery pedigree: The technical team has led or co-led discoveries at Merian (7 Moz, Newmont), Rosebel (13.7 Moz, now Zijin) and Saramacca (1.5 Moz).
- Deep in-country knowledge: Geologists are locally trained at Anton de Kom University and have decades of experience in Suriname’s regolith-dominated terrain.
This Sranan Gold profile is part of a paid investor education campaign.*
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Castle Minerals Investor Kit
- Corporate info
- Insights
- Growth strategies
- Upcoming projects