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Antilles Gold Limited
Investor Insight
Antilles Gold’s gold and copper projects in Cuba are underpinned by a strong partnership with a Cuban Government-owned mining company that effectively fast-tracks and de-risks its promising projects, offering a strategic value proposition for investors.
Overview
Antilles Gold (ASX:AAU,OTCQB:ANTMF) is an Australian mining company focused on gold and copper projects in Cuba through a joint venture with the Cuban Government’s mining company, GeoMinera. This partnership has resulted in rapid project permitting and access to several new development opportunities for the Australian company.
Antilles Gold offers strong growth potential through two near‐term development projects, Nueva Sabana and La Demajagua, and two exploration projects, the El Pilar porphyry system and Sierra Maestra copper concessions.
Joint venture projects in Cuba
Nueva Sabana is a near‐term, gold‐copper mine development within the joint venture with GeoMinera, and is expected to initially produce around 70 grams per tonne (g/t) gold in a concentrate from a high‐grade gold cap followed by ~27 percent copper concentrate with gold credits. The project development strategy includes the completion of a feasibility study in September 2024, and the commencement of construction soon after.
The second proposed development is the La Demajagua open-pit mine, which is likely to produce ~50,000 tonnes per annum (tpa) of gold arsenopyrite concentrate (32 g/t gold, 27 percent arsenic), and ~10,000 tpa of gold antimony concentrate (28.8 g/t gold, 48 percent antimony, 1,200 g/t silver) for nine years. According to the plans, construction will commence in late 2025, with commissioning in mid‐2027. La Demajagua will also include the construction of a concentrate processing facility to treat La Demajagua’s gold arsenopyrite concentrate, with the capacity to produce 50,000 oz gold per year in dore, which will further increase JV profit and cashflow.
The joint venture’s two exploration projects comprise the 720‐hectare El Pilar Concession in Central Cuba covering a cluster of three copper‐gold porphyry deposits (El Pilar, Gaspar and San Nicholas), the adjacent 17,000 hectare San Nicholas concession with porphyry style mineralisation, and two concessions totaling 52,600 hectares within the producing Sierra Maestra copper belt in southeast Cuba (La Cristina and Vega Grande), with both indicating of porphyry deposits highly prospective for copper, gold and molybdenum.
Surface mineralisation at El Pilar
Antilles Gold has completed a technical evaluation of the El Pilar porphyry system which was advised to ASX on 15 February 2024.
The joint venture intends to invest part of the surplus cash flow from the Nueva Sabana mine to fund the exploration of major copper targets, including the El Pilar copper‐gold porphyry system, and those in the Sierra Maestra copper belt.
Company Highlights
- Antilles Gold Limited is an Australian mining company listed on the ASX (AAU) and OTCQB (ANTMF).
- The company is focused on gold and copper projects in Cuba through a 50:50 joint venture with the Cuban Government’s mining company, GeoMinera, opening new development opportunities for Antilles and de-risking permitting processes.
- The joint venture is engaged in four development projects: 1) Nueva Sabana gold‐copper mine; 2) La Demajagua gold mine; 3) El Pilar porphyry copper project; and 4) Exploration of two concessions within the Sierra Maestra copper belt. Of these, Nueva Sabana and La Demajagua offer near‐term development opportunities.
- Nueva Sabana is a near‐term gold‐copper mine development that is expected to generate strong cash flow from concentrate sales from end‐2025.
- La Demajagua is an open-pit mine gold project commencing construction in Q4 2025 with commissioning in mid‐2027.
- El Pilar and Sierra Maestra concessions are exploration projects.
- Investment in Cuba offers several benefits, including richness in minerals, low operating costs and royalties, stable government and regulations, several investment incentives and the availability of a skilled workforce.
Key Projects
Nueva Sabana Project
Prominer Mining Technology will supply Nueva Sabana concentrator
Nueva Sabana is the company’s near‐term, gold‐copper mine development project. The project is held in the 50:50 joint venture with GeoMinera. It will be an open-pit mine developed on the oxide zone overlaying the El Pilar porphyry copper deposit in central Cuba.
Results from 24,000 metres of historical drilling, 1,800 metres drilled in 2022, and the 10,000 metres drilled in 2023 have established a mineral resource estimate (MRE). Results of a scoping study were advised to ASX on 7 May 2024, and a feasibility study is in progress for the proposed development which will be followed by a 12‐month construction phase.
Drilling has shown outstanding grades for gold and copper, and increasing lateral and vertical boundaries of the copper domain.
The proposed mining rate for the project will be 500,000 tpa of ore with a low waste‐to‐ore ratio. The anticipated initial production of 70 g/t gold concentrate will be followed by a ~27 percent copper concentrate with gold credits.
The estimated project cost is approximately US$33 million, of which approximately US$6 million is shareholders equity with the balance of $27 million expected to be funded through an advance on purchases of the concentrates by an international commodities trader.
Chinese engineering group, Prominer Mining Technology, which has extensive experience in designing and constructing gold and copper concentrators, is expected to supply the crushing and flotation circuits for the Nueva Sabana mine.
La Demajagua Project
La Demajagua involves the development of a gold‐antimony‐silver deposit as an open-pit mine by the joint venture company, Minera La Victoria.The project is located within a 900 hectare mining concession on the Isle of Youth, 60 nautical miles from mainland Cuba. The project site is 35 kilometres from the port city of Nueva Gerona and enjoys excellent infrastructure in terms of accessibility by highway, and availability of water, electricity and fiber optic cable.The project has an MRE of 905,000 oz gold equivalent for the open-pit operation. The MRE was calculated from 29,000 metres of drilling undertaken by the JV, and selective results from about 50,000 metres of historic drilling and revised after the receipt of additional antimony assays. The project expects mining of about 815,000 tpa of ore to produce two concentrates: 50,000 tpa of gold‐arsenopyrite and 10,000 tpa of gold‐antimony‐silver for nine years.
The project will also include a concentrate processing facility to produce gold doré from the gold-arsenopyrite concentrate. The facility will comprise a 50,000‐tpa two‐stage fluidized‐bed roaster, a carbon-in-leach (CIL) circuit, and an antimony recovery circuit. The overall production target is 75,000 oz gold equivalent per year. Chinese engineering firm BGRIMM Technology Group, which has extensive experience in designing and constructing roasters, is expected to supply the process plant on a turnkey basis.
The total development cost is estimated at US$165 million, expected to be funded by US$75 million of equity, which includes contributions by a third shareholder in the project, and the balance of US$90 million in debt. The life‐of‐mine cash surplus is estimated at ~US$600 million, with an NPV of ~US$330 million based on US$1,800/oz gold, and US$13,000/t antimony.
A revised scoping study including the concentrate processing facility is expected in December 2024, and construction is anticipated to commence in late 2025, with commissioning targeted for mid‐2027.
El Pilar Copper‐Gold Porphyry System Project
El Pilar is an exploration project of a cluster of three copper‐gold porphyry deposits: El Pilar, Gaspar and Camilo. The project comprises a 752 hectare exploration license and an adjacent 17,000 hectare reconnaissance permit covering the San Nicholas copper targets.
The project site benefits from established infrastructure with close access to a major highway, high‐tension power, and a 60 kilometre rail link to Palo Alto port.
Previous mapping, soil sampling, ground magnetics, an aeromagnetic survey and 24,000 metres of shallow drilling confirmed the existence of copper‐gold mineralization and identified the exposures as a potentially large, leached porphyry system. The surface exposures at El Pilar are leached phyllic caps to a cluster of copper‐gold porphyry cores. The extent of surficial hydrothermal alteration indicates the porphyry intrusions have large dimensions, and potential depths greater than 1,000 metres.
Ground magnetics and induced polarization surveys in early 2023 have confirmed a cluster of three potentially large porphyry intrusives – El Pilar, Gaspar and Camilo. A 10‐hole initial program has demonstrated positive results with good copper intercepts in porphyry‐style veining and has indicated the proximity of drilling to the core of El Pilar porphyry intrusive. In particular, drill hole PDH‐004A assayed 1.23 percent copper over its length of 134 metres from 49 metres.
Sierra Maestra Copper Belt Project
The project is an exploration project covering two highly prospective concessions for copper, gold and molybdenum in the Sierra Maestra copper belt in southeast Cuba. It includes a 3,600-hectare geological investigation license in La Cristina, and the adjoining 49,000‐hectare Vega Grande reconnaissance license.
The copper belt spans more than 200 kilometres of Cretaceous‐age geology intruded by Eocene stocks, which are the source of widespread gold and base‐metals mineralization. The project is near the El Cobre mine which is the oldest operating copper mine in the Americas. The concessions incorporate a series of copper‐gold‐molybdenum zones that display significant footprints of hydrothermal alteration normally associated with potentially large porphyry systems.
An extensive, two‐year prospecting program will be carried out on the two concessions, commencing in Q4 2024, to identify drill targets.
Management Team
Brian Johnson – Executive Chairman
Brian Johnson is a graduate of civil engineering from the University of Western Australia and a member of the Institute of Engineers, Australia. He has rich experience in the construction and mining industries in Australia, Southeast Asia and North America. He was instrumental in establishing successful companies in the iron ore and coal sectors. Previously, he has served as a director of two listed gold producers, and of companies with stock exchange listings in London, New York, Vancouver and Australia.
James Tyers – Chief Executive Officer
James Tyers is a member of the AusIMM and has more than 30 years of experience in the mining industry, holding senior management roles in gold and iron ore operations. He has been associated with the Palm Springs Gold Mine in the Kimberley region of Western Australia, and the Cornishman Project, a JV between Troy Resources and Sons of Gwalia. He has experience developing and operating iron ore projects in the mid‐west of Western Australia. He was responsible for developing the Las Lagunas Project and is the project director for the La Demajagua gold mine in Cuba.
Ugo Carlo – Non‐executive Director
Ugo Carlo has more than 30 years of experience in the Australian mining industry. Throughout his career, he has served in several senior leadership roles at Rocklands Richfield, Austral Coal and Conzinc Rio Tinto Australia Group. He is also a former director of the Port Kembla Coal Terminal, the New South Wales Joint Coal Board, and interim chairman of the New South Wales Minerals Council.
Angela Pankhurst – Non‐executive Director
Angela Pankhurst has more than 20 years of experience as an executive and non‐executive director, primarily in the mining industry. She has been a senior executive for companies with projects in Kazakhstan, Nigeria, Vietnam, South Africa and Australia. She has held senior leadership positions at Antilles Gold and Central Asia Resources. She is currently a director of Consolidated Zinc and a director of Imritec.
Tracey Aitkin – Chief Financial Officer
Tracey Aitkin is a professional member of CPA Australia and has more than 30 years of rich experience in finance, administration and staff management across a range of industries, including mining, manufacturing, retail, transport and agriculture. She joined the company in 2009 and was named CFO in 2010.
Dr. Jinxing Ji – Technical Director
Dr. Jinxing Ji is a seasoned metallurgist with six years of research experience in universities and 26 years of practical experience in the mining industry related to gold, silver, copper, zinc and lead. His broad experience includes due diligence, metallurgical test work, pre‐feasibility study, feasibility study, detailed design, plant commissioning support, and operational support for projects in Turkey, Greece, Canada, China, Romania, Brazil and Papua New Guinea.
Steve Mertens – Mining Director
Steve Mertens is a mining engineer with more than 20 years of industry experience across a range of commodities, including nine years based in Latin America. He has been associated with the Goro Nickel Project in New Caledonia and the Mina de Cobre Project in Panama. Prior to his current role as general manager for the Minera La Victoria JV company, he was the mining manager for Antilles Gold’s Las Lagunas operation in the Dominican Republic.
Chris Grainger – Exploration Director
Chris Grainger holds a PhD in economic geology from the University of Western Australia. He is an Australian geologist with more than 25 years of international experience with involvement in grassroots and brownfield exploration, as well as resource definition and development, with a focus on precious and base metals in South and Central America and the Caribbean. He has been associated with Continental Gold’s Buritica gold‐silver project, and Cordoba Minerals’ Alacran copper‐gold project.
Results of Updated Scoping Study for Nueva Sabana Mine, Cuba
Antilles Gold Limited (“Antilles Gold” or the “Company”) (ASX: AAU, OTCQB: ANTMF) is pleased to advise the results of the Updated Scoping Study for the first stage of the proposed Nueva Sabana gold-copper mine in Cuba. The Study has been prepared by the 50% owned Cuban joint venture company, Minera La Victoria SA (“MLV”), which is undertaking the project.
- The Updated Scoping Study is based on a pit limited to 100m depth which, at a mining rate of 500,000tpa of ore, will result in an initial mine life of 4.8 years.
- With additional exploration, and a greater mining depth, the project life and NPV could be increased.
- Metallurgical testwork set out in ATTACHMENT C indicates the mine will initially produce a gold concentrate grading ~57.5g/t Au for around 18 months, followed by a blended copper-gold concentrate with an average grade of ~28.3% Cu, and ~29.8g/t Au.
- Payables for these concentrates have been received from a major international commodity trader that the joint venture is negotiating with to establish an offtake agreement.
- The off-take agreement is expected to include a provision for advanced payments for concentrates to assist in the funding of construction costs.
- The 752ha concession covering the Nueva Sabana oxide deposit also hosts the El Pilar, Gaspar, and Camilo porphyry copper intrusives, and numerous shallow gold targets identified by artisanal mining.
- The Nueva Sabana deposit has a small gold cap, an underlying copper-gold zone, and a deeper sulphide copper zone with mineralisation open at depth at 150m which could potentially transition into the El Pilar porphyry copper deposit offset to the south.
HIGHLIGHTS OF FINANCIAL ANALYSIS FOR STAGE ONE OF THE NUEVA SABANA MINE: 
- Estimated Operating Profit of ~US$60M from the first 22 months of concentrate production will comfortably permit repayment of the ~US$28.5M project debt before the end of this period.
- MLV intends to drill the copper mineralisation that continues below the stage one mining depth of 100m with the aim of deepening the Nueva Sabana mine and extending its life.
- The Revised MRE for Nueva Sabana which is incorporated as ATTACHMENT A in the Study, established approximately 25M lb of 0.75% copper in Inferred Resources within the 50m below the initial mine depth, which is a positive indication of the potential to extend its life.
- MLV also intends to drill identified oxide gold-copper targets overlying the nearby Gaspar and Camilo porphyry copper deposits to potentially increase resources.
- Subject to the results of additional drilling, consideration will be given to doubling the mining rate in the copper domain to 1.0Mtpa of ore to increase annual profitability and cash flow.
- It is possible that the Nueva Sabana mine could be significantly expanded and extended in the future to mine the three porphyry copper deposits located within the mining concession.
Antilles Gold Chairman, Mr Brian Johnson, commented: “The first stage of Nueva Sabana, while relatively small, has an excellent IRR and will deliver significant free cash within a short timeframe.
MLV’s priority at this time is to finalise current negotiations on a concentrate off-take agreement for the project, and to arrange financing for the mine construction.
Antilles Gold’s share of the estimated NPV8 for the first stage of Nueva Sabana is ~A$70M at current metal prices of US$2,600 per oz Au, and US$9,300/t Cu, and an exchange rate of A$1.00 = US$0.66, which is significantly higher than the Company’s current market capitalisation of A$7.5M.
The opportunity to unlock further value for Antilles Gold will occur with the proposed development of the joint venture’s flagship project, the La Demajagua gold-silver-antimony mine, where the Company’s share of NPV8 reported to ASX on 30 March 2023 was ~A$150M, prior to the joint venture’s decision to expand the project to produce gold doré from the mine’s gold arsenopyrite concentrate, and to increase antimony production.
Before the end of 2024, Antilles Gold will contribute the final US$0.4M of the US$15.0M earn-in for its 50% shareholding in the joint venture company, Minera La Victoria (“MLV”), after which the Company’s cash burn will be substantially reduced.”
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This article includes content from Antilles Gold (ASX:AAU), licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Providence Gold Mines
Investor Insight
Providence Gold Mines’ portfolio of past-producing gold assets with a resource potential of 1 to 4 million ounces, makes it a compelling investment opportunity for investors seeking exposure to undervalued, high-potential gold assets amid a current gold bull market.
Overview
Providence Gold Mines (TSXV:PHD,OTCQB:PRRVF,GR-FRANKFURT:7RH1) is a junior gold exploration company focused on the revitalization of the historic Providence Group of Mines and further unlocking the potential of its high-grade gold deposits within the Mother Lode Gold Belt in Sonora, California. This prolific gold district has historically reportedly produced over 128 million ounces of gold, making it one of the most significant gold-producing regions in North America.
Providence Gold is strategically positioned to benefit from the current gold bull market, as global economic uncertainty, inflationary pressures, and rising demand for safe-haven assets continue to drive gold prices to historic highs. With a portfolio of past-producing gold mines, high-grade drill targets, and a near-term pathway to production through stockpile processing, the company is poised to potentially generate significant value for shareholders. The Providence Group of Mines consists of seven patented mineral claims: Bonita, Consuelo, Fair Play, Good Enough, McCarthy, Mexican and Providence.
This past-producing gold asset was historically one of the more famous high-grade mines in the Mother Lode Belt, with reported production grades exceeding 1 oz/ton (or 31 g/t gold). Mining operations ceased in 1916, leaving behind significant unmined high-grade ore at depth, as well as gold-bearing stockpiles that have since been identified as a near-term cash flow opportunity.
Providence Gold Mines is led by professionals with extensive experience in discovery of new mines in the mother lode district and corporate finance. Their combined expertise in geology, capital markets and project execution positions the company for successful exploration and potential near-term production. This, combined with high-grade historical production, modern geological exploration techniques, and near-term catalysts, Providence Gold is well-positioned to emerge as a high-value gold exploration and development play in a rising gold market.
Company Highlights
- Providence Gold controls a portfolio of gold mines in Tuolumne County, California, situated in the heart of the historic Mother Lode district, a region that has produced over 128 million ounces of gold to date.
- The Providence Group of Gold Mines, consisting of seven patented staked mineral claims, was historically a high-grade producer, with reported grades grossly exceeding 1.0 oz/ton.
- The company has identified gold-bearing stockpiles from historical operations that could provide an immediate cash-flow opportunity through simple gravity-based processing.
- Utilizing 3D terrestrial LIDAR laser scanning technology and traditional exploration methods, Providence Gold has identified new high-grade drill targets beneath and between historical stopes, supporting a resource potential estimate of 1 to 4 million ounces.
- The company has outlined a 4,000-meter core drilling program, targeting high-grade zones identified through 3D modeling, trenching and soil geo chemistry and traditional mapping.
Key Project
Providence Group of Mines
The Providence Group of Mines, located in Tuolumne County, California, sits within the Mother Lode Belt, a historic gold-producing region responsible for over 128 million ounces of gold production since the 19th century. The Mother Lode Belt is one of the most significant gold districts in the United States, characterized by high-grade mesothermal vein-hosted orogenic gold deposits. The district features structurally controlled mineralization associated with regional shearing and faulting, forming a series of gold-bearing quartz veins that have been the focus of both historic and modern mining operations.
Gold mining at the Providence Mines dates back to 1894, with extensive production recorded until 1916. At the time of closure, the mine was actively extracting high-grade ore, but operations ceased due to a dispute and a regional fire that destroyed surface infrastructure, rather than depletion of mineral resources. Historical reports indicate the mine's lower levels, specifically from the 10th to 12th levels, were actively being developed into rich ore shoots at the time of shutdown, suggesting that significant mineralization remains in place.
The ore shoots within the Providence Gold system are reported to have historically produced between 30,000 to 50,000 ounces per stope, with average gold grades exceeding 1 oz/ton (31 g/t gold). The McCarthy Mine, one of the key areas within the Providence Group, has returned surface samples with gold assays ranging from 77 g/t to 97 g/t gold, further demonstrating the district’s exceptional high-grade potential. Importantly, the historical mine workings only reached a depth of 100 feet, leaving down-dip extensions of the ore body entirely unexplored.
Modern structural interpretations and geophysical surveys suggest that gold mineralization at Providence is open at depth and along strike, with a strong likelihood of additional undiscovered high-grade ore shoots. Given that mining operations in the early 20th century were limited by technology and capital, the potential for discovering new gold zones using modern exploration techniques remains highly attractive.
Exploration and Development Plans
Providence Gold has embarked on a multi-phase exploration strategy designed to assess the down-dip and strike extensions of near surface, historically mined high-grade gold veins, as well as evaluate the potential for bulk-tonnage, low-grade gold mineralization at surface. The company’s technical approach integrates cutting-edge technologies, including 3D terrestrial LIDAR scanning, geophysical surveys and targeted diamond drilling.
One of the most significant near-term opportunities is the processing of historical stockpiles, which were initially misclassified as waste but have since been confirmed to contain gold mineralization. Recent trenching and bulk sampling returned positive assay results, with recovery tests demonstrating that gold can be efficiently extracted using simple crushing and gravity separation methods. Since the stockpile material is already milled, this initiative could provide a near-term source of revenue while exploration drilling advances.
The primary exploration initiative at Providence is a 4,000-meter core drilling program, targeting previously untested areas near surface, beneath and between the historical stopes. The company has identified high-priority drill targets based on 3D geological modeling and interpretation of compiled data, which suggest that gold-bearing structures extend well beyond the historically mined zones.
Another key aspect of Providence’s exploration strategy is the development of a digital 3D mine model, integrating historical production data, drill results, 3D Lidar surveys and structural interpretations. This modeling enables the team to simulate mineralized zones, predict ore shoot continuity, and optimize future mining scenarios.
Near and Long-term Development Plan Going Forward
In the near-term, the company has identified gold-bearing stockpiles from historical operations that could provide an immediate cash-flow opportunity through simple crushing and gravity-based processing.
In the long-term, Providence remains focused on developing its assets through a phased approach which includes:
- Phase 1 Drilling (2025-2026): Targeting high-grade extensions of previously mined stopes, validating historical resource potential.
- Phase 2 Resource Definition (2025-2026): Expanding the drill program to delineate an NI 43-101 compliant resource, incorporating both high-grade underground targets and bulk-tonnage surface mineralization.
- Preliminary Economic Assessment & Engineering Studies (2026-2027): Evaluating the feasibility of underground mining operations, along with potential processing of the historical stockpiles for early cash-flow generation.
- Permitting & Development (2028+): Advancing toward potential production, leveraging California’s permitting framework and existing infrastructure within the Mother Lode Belt.
Management Team
Ronald A. Coombes - President, CEO & Director
Ronald Coombes brings over 25 years of experience in mineral exploration and project development. He has successfully managed multiple mining ventures, including a molybdenum project that grew from a $1.5 million to $288 million market cap in just 12 months. Throughout his career, Coombes has reviewed and assessed over 100 mining projects across Canada, the US and Mexico, specializing in fundraising, acquisitions and early-stage resource development. He is also a director of Lincoln Mining, which is currently advancing the Pine Grove Gold Deposit in Nevada.
Rodger Young - Chairman, Vice-president & Director
Rodger Young has extensive expertise in international financing, particularly in the natural resources sector. He was the founder and director of a major finance house based in London, specializing in raising capital for mining and resource-based projects. His experience in corporate governance, financial structuring, and investment strategies provides Providence Gold with a strong foundation for securing capital and advancing its projects.
Dr. Lee Groat - Qualified Person & Senior Advisor
Dr. Lee Groat is a renowned geologist and professor at the University of British Columbia. With expertise in structural geology, economic mineral deposits, and exploration strategy, he has contributed significantly to advancing mineral projects globally. His technical leadership ensures Providence Gold’s exploration programs are guided by cutting-edge geological analysis and best industry practices.
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