The Conversation (0)
Castle Minerals (ASX:CDT) is dedicated to advancing its Kpali and Kandia gold projects in Ghana’s Upper West region, a significantly under-explored yet highly prospective geological setting within the West African gold belt. The company is committed to identifying, exploring, and developing economically viable gold deposits by leveraging the region’s rich mineral endowment and proven mining history.
Castle’s portfolio is anchored by its flagship Kpali and Kandia gold projects, both demonstrating significant potential for resource expansion and economic development. Castle aims to delineate and grow its resource base, positioning itself as a key player in Ghana’s emerging gold sector. The company’s dedication to sustainable exploration practices and strong community partnerships further strengthens its ability to operate effectively and responsibly in the region.
The Kpali gold project, a key focus of Castle Minerals, is located 30 km west of Sawla in Ghana’s Upper West region. It includes the Kpali and Bundi prospects within the 170 sq km Degbiwu prospecting license (PL 10/26), surrounded by the 1,033 sq km Gbiniyiri retention license (RL 8/27). The licenses’ western boundaries follow the Black Volta River, bordering Burkina Faso.
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.
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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
Pinnacle Silver and Gold
Investor Insight
Pinnacle Silver and Gold presents a compelling investment opportunity in the precious metals sector as it continues to advance its flagship high-grade El Potrero project in Mexico and its Red Lake, Ontario assets. The company’s proven business model focuses on rapidly reactivating past-producing mines to generate early cash flow, while simultaneously exploring for district-scale potential, offering a strong value proposition in a bullish gold-silver environment.
Overview
Pinnacle Silver and Gold (TSXV:PINN,OTC:PSGCF,Frankfurt:P9J) is a promising player positioned for growth in the precious metals exploration sector, with its strategic focus on high-potential projects, commitment to responsible mining practices, and experienced leadership team.
Focused on silver and gold projects in the Americas, Pinnacle is strategically placed to capitalize on the growing demand for these valuable resources. Its core projects include the high-grade El Potrero gold-silver project in Mexico, and the Argosy gold mine and North Birch gold project in Ontario’s Red Lake District – each offering near-term development potential and strong exploration upside.
Pinnacle’s current flagship project, El Potrero, is located within the Sierra Madre Gold Silver Trend.
The company's investment appeal stems from several key factors:
- A robust pipeline of projects at various stages of exploration and development
- Strategic focus on high-potential areas in North and South America
- Effective capital management practices
- Aggressive expansion strategy through strategic acquisitions
The company’s business strategy involves the acquisition of past-producing mines that can be put back into production quickly to generate cash flow. By focusing on high-grade, underground mines, Pinnacle can leverage low capex, a smaller operational footprint, easier and faster permitting process and protection against metal price volatility. At the same time, the company conducts brownfield exploration for resource expansion, increasing its potential for district-scale discovery.
Pinnacle's emphasis on creating shareholder value is evident in its approach to project selection and development. The company's portfolio is carefully curated to balance near-term production potential with long-term growth prospects, offering investors exposure to both immediate returns and future upside.
Company Highlights
- Pinnacle Silver and Gold is a Canada-based exploration and development company dedicated to building long-term shareholder value with its silver- and gold-focused assets in North and South America.
- The company’s flagship El Potrero gold-silver project, located in Mexico’s Sierra Madre Belt, has returned exceptional underground sample grades up to 85.1 grams per ton (g/t) gold and 520 g/t silver, with exploration potential across a 1.6 km strike length.
- The 100-percent-owned Argosy gold mine and North Birch project are located in the Red Lake District in Northwestern Ontario, a region famous for gold production and high-grade underground mines.
- The company’s strategy is to generate near-term production from past-producing assets while growing its resource base through modern, brownfields exploration.
- Pinnacle is led by a highly experienced management team with a successful track record in advancing exploration-stage assets through to production.
Key Projects
El Potrero Gold-Silver Project
El Potrero is a high-grade, past-producing gold-silver project located in the prolific Sierra Madre Belt in Mexico, within 35 km of four operating mines, including Fresnillo’s 4,000 tpd Ciénega Mine. The project comprises two concession blocks totaling 1,074 hectares, which include the historic mines and a 100 tpd on-site processing plant.
Recent Developments (as of July 2025):
- Over 600 rock samples have been collected from underground and surface sources for geochemical analysis.
- Channel sampling at the Pinos Cuates mine returned assays of up to 85.1 g/t gold and 520 g/t silver over 0.5 m, and composite intervals of 50.3 g/t gold and 269 g/t silver over 1.7 m.
- Geological interpretation highlights a significant quartz-feldspar porphyry dyke as a structural control on gold-silver mineralization.
- The Dos de Mayo vein system has been mapped over 1.6 km with trench and underground samples showing high-grade mineralization, including 13.2 g/t gold and 2,280 g/t silver from surface grab samples.
- Work is underway to design an underground and surface drill program to define continuity and guide future mine development.
- A site inspection of the 100 tpd plant confirmed that the base infrastructure is sound. Refurbishment of key equipment (crusher, mill, Merrill Crowe circuit) is being planned.
- Permitting efforts are progressing efficiently, aided by the site's historical disturbance. Baseline studies and formal permitting proposals are underway.
Pinnacle can earn an initial 50 percent interest upon production and increase its ownership of El Potrero to 100 percent subject to a 2 percent NSR, primarily through cash flow-funded payments, offering a low-dilution path to full ownership.
Argosy Gold Mine
Located within the Birch-Uchi Greenstone Belt in Ontario’s Red Lake District, and approximately 10 km from First Mining’s Springpole deposit, the Argosy gold mine produced 101,875 ounces at 12.7 g/t gold from 1931 to 1952. Pinnacle owns 100 percent of the project, subject to a 2.5 percent NSR.
Exploration Highlights:
- Past drilling intersected high-grade mineralization, including:
- 14.67 g/t gold over 1.7 m (No. 3 Vein)
- 12.02 g/t gold over 1.29 m (No. 8 Vein)
- 11.75 g/t gold over 1.55 m (No. 2 Vein)
- The project offers strong depth potential, with 2002–2004 drilling intersecting multiple new veins and gold mineralization extending to 400 m vertical depth.
North Birch Gold Project
Located 4 km from the Argosy Mine, North Birch is a 3,850-hectare grassroots project with major upside. The property lies in an underexplored section of the Birch-Uchi Belt and covers a folded and sheared iron formation, interpreted as analogous to Newmont’s Musselwhite Mine.
Exploration Work:
- LiDAR surveys and IP geophysics have revealed 8+ km of structural breaks with multiple drill targets.
- 2022 drilling intersected anomalous gold and copper mineralization within structurally deformed and altered iron formations, confirming the favorable structural setting
Management Team
Robert Archer - President, CEO and Director
Robert Archer has more than 40 years’ experience in the mining industry, working throughout the Americas. After spending more than 15 years with major mining companies, Archer held several senior management positions in the junior mining sector and co-founded Great Panther Mining, a mid-tier precious metals producer, where he served as president and CEO from 2004 to 2017 and director until 2020. He joined Pinnacle as a director in March 2018 followed by his appointment as CEO in January 2019 and president in October 2021. Archer is a professional geologist and holds an Honours BSc from Laurentian University in Sudbury, Ontario.
David Cross - CFO
David Cross is a CPA and CGA with over 21 years’ experience in the junior sector with a focus on finance and corporate governance. He is currently a partner of Cross Davis and Company LLP Chartered Professional Accountant, which specializes in accounting and management services for private and publicly listed companies within the mining industry, and has recently been appointed CFO of Ashburton Ventures.
Colin Jones - Independent Director
Colin Jones is principal consultant for Orimco Resource Investment Advisors in Perth, Australia. He has almost 40 years’ experience as a mining, exploration and consulting geologist in a number of different geological environments on all continents. He has managed large exploration and due diligence projects, and has undertaken numerous bankable technical audits, technical valuations, independent expert reports and due diligence studies worldwide, most of which were on behalf of major international resource financing institutions and banks. Jones holds a Bachelor of Science (Earth Sciences) degree from Massey University, NZ.
David Salari - Independent Director
David Salari has worldwide experience in the design, construction and operation of extractive metallurgical plants. He is an engineer with more than 35 years of experience in the mining and mineral processing field. He is currently the president and CEO of DENM Engineering.
Ron Schmitz - Independent Director
Ron Schmitz is the principal and president of ASI Accounting Services, providing administrative, accounting and office services to public and private companies since July 1995. Schmitz has served as a director and/or chief financial officer of various public companies since 1997, and currently holds these positions with various public and private companies.
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