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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.
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Developing Gold and Copper Projects in mineral‐rich Cuba
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.”
Click here for the full ASX Release
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.
High-Grade Gold Confirmed at Bronzewing South
- Partial results received from the diamond tail of drill-hole BWSRC081 with the visible gold zone returning 15.5g/t Au over 0.48m from 416.5m. This high- grade zone is reported within a broader intercept of:
- 8.95m at 1.32g/t Au from 414m, including:
- 0.48m at 15.5g/t Au from 416.5m; and
- 0.55m at 3.52g/t Au from 422.4m.
- 8.95m at 1.32g/t Au from 414m, including:
- Follow-up drilling along strike from these intercepts is scheduled to commence in the coming days to define the extent of the south-trending zone of gold mineralisation with a diamond tail of drill-hole BWSRCD086.
- Drill results indicate the inadequacy of historical air-core drill testing with a significant search space now open on the boundary with the historical Bronzewing Mining Lease.
- Diamond drilling at the Central Target, located ~1.7km to the south of the Eastern Target and within the same structural corridor, has encountered zones of intense locally massive quartz veining associated with brecciation below historical Hammer gold drilling anomalies of:
- 20m at 1.5g/t Au from 120m in drill-hole BWSRC0037, including:
- 8m at 2.4g/t Au from 120m; and
- 4m at 3.9g/t Au from 120m.1
- 20m at 1.5g/t Au from 120m in drill-hole BWSRC0037, including:
- Assay results from the remaining program will be progressively released in the coming weeks.
Figure 1. Photo of massive quartz carbonate veining intersected in drill-hole BWSRCD082 diamond tail at Hammer’s Central Target Zone (213m to 221.5m).
Hammer’s Managing Director, Daniel Thomas, said:
“The confirmation of high-grade gold mineralisation at Bronzewing South is a significant step in our search for an economically viable gold target at our Yandal Gold Project. High-grade mineralisation can be traced with multiple intercepts to the north of our project area, with the mineralised structure interpreted to extend for hundreds of metres.
“We will now look to test this structure approximately 100m further south on our project area. We are very much looking forward to follow-up drilling at the Eastern Target, as we enter a zone without any previous drilling coverage.
“The team is encouraged by the observations in recent drilling at the Central Target and the potential for this corridor to be connected to the Eastern Target drilling some 1.7km to the north. This corridor is largely untested below the ineffectual air-core drilling and, with a prominent shear zone interpreted to connect these targets, it is of high interest to the team in our search for a significant gold discovery.”
Figure 2. Plan view of the Bronzewing South tenement EPM36/854, showing Bronzewing orebodies on Northern Star Resources mining lease, historical Hammer RC drilling intercepts and the structural corridor of interest containing Hammer’s Central and Eastern Target Zones (refer to ASX announcement 9 November 2020).
Click here for the full ASX Release
This article includes content from Hammer Metals, 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.
