Antilles Gold Limited (ASX:AAU)

Antimony Production Target of ~4,500tpa for La Demajagua Mine

Antilles Gold Limited (“Antilles Gold” or the “Company”) (ASX: AAU, OTCQB: ANTMF) advises that subsequent to the ASX announcement on 13 September 2024 which reported potential antimony production from the proposed La Demajagua gold-silver- antimony mine in Cuba, additional metallurgical test work data has been received from Chinese engineers, BGRIMM Technology Group (http://english.bgrimm.com/).


The Technical Consultant for the project, Vancouver based JJ Metallurgical Services Inc, has revised production targets for the two concentrate products expected to be produced by the La Demajagua mine. (refer attached Memorandum and JORC Edition 2012 Table 1)

  • The production targets have been based on the Pitshell 49 resource modelling incorporated in the initial Scoping Study for the project reported to ASX on 30 March 2023, and the antimony content derived from the metallurgical samples.
  • Based on a mill throughput of 815,000 tonnes per annum (‘tpa’), and reverse flotation of the bulk flotation concentrate at a mass pull of 10%, it is expected that ~50,000tpa of a gold-arsenopyrite concentrate will be produced with a grade of ~31.9g/t Au and ~4.9% Sb (antimony), together with ~5,560tpa of a gold-silver-antimony concentrate grading ~49.1g/t Au, ~2,000g/t Ag, and ~46.2%Sb.
  • The gold-arsenopyrite concentrate will be subjected to alkaline leaching to selectively dissolve antimony. After solid/liquid separation, the dissolved antimony will be precipitated to produce ~3,980tpa of an antimony precipitate with an estimated ~48% Sb content.
  • The antimony precipitate will be blended with the gold-silver-antimony concentrate to produce a final concentrate product of ~9,540tpa grading ~29.9g/t Au (~9,170oz Au per year), ~1,200g/t Ag (~368,000oz Ag per year), and ~47% Sb (~4,480t Sb per year).
  • The gold-arsenopyrite concentrate produced after alkaline leach is expected to be ~45,670 tpa grading ~34.6g/t Au (~50,800oz Au per year).
  • The 50% owned joint venture which is developing the project plans to oxidise the refractory gold-arsenopyrite concentrate followed by cyanide leaching to produce a higher value gold doré.
  • BGRIMM has recently completed 9 months of metallurgical test work on the La Demajagua concentrate which demonstrated the technical viability of constructing a two-stage fluidised-bed roaster and cyanide leach circuit, and established a ~92% gold recovery from the gold-arsenopyrite concentrate.
  • The methodology and cost of stabilising arsenic which is generated during roasting, also needs to be established through test work currently being undertaken by specialists in Canada.
  • Based on the production targets advised by consultants, and at current prices for gold (US$2,600/oz), silver (US$30/oz), and antimony (US$25,000/t), and payables for contained metal in the gold-silver-antimony concentrate offered by potential buyers (55%, 65%, and 57% respectively), revenue for this concentrate could be in the order of US$84 million per year for the 9 year mine life for the first stage, open pit operation.
  • The potential sales value of contained antimony in the gold-silver-antimony concentrate could now be over US$40 million per year more than assessed in March 2023, demonstrating its growing importance to the La Demajagua project.
  • The income for this antimony-rich concentrate will be in addition to that received for ~47,000oz Au per year forecast to be contained in the gold doré.
  • A new Scoping Study for the expanded project incorporating the processing facility and the production of a gold doré and an antimony-rich concentrate will be completed after the estimated construction and operating costs have been received from BGRIMM, and is expected to demonstrate robust returns at conservative metal prices.

COMMENT:

Antilles Chairman, Brian Johnson said: “with improved supply-demand dynamics for antimony and a strengthening price environment, we are now rapidly advancing project development studies with the assistance of BGRIMM Technology Group and our Technical Consultants. The initial production targets defined for La Demajagua is a good starting point and we look forward to delivering the Scoping Study for an expanded operation. We are also engaging with a wider cohort of potential antimony buyers given the stronger demand and price environment for the strategic metal.”


Click here for the full ASX Release

This article includes content from Antilles Gold, 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.

AAU:AU
Antilles Gold Limited

Antilles Gold Limited Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

The Conversation (0)
Antilles Gold Limited

Antilles Gold Limited


Keep reading...Show less
Revision to Updated Scoping Study Nueva Sabana Mine, Cuba

Revision to Updated Scoping Study Nueva Sabana Mine, Cuba

Antilles Gold Limited (AAU:AU) has announced Revision to Updated Scoping Study Nueva Sabana Mine, Cuba

Download the PDF here.

Heliostar Files Technical Reports on Mines and Development Project Recently Acquired in Mexico

Heliostar Files Technical Reports on Mines and Development Project Recently Acquired in Mexico

Company Overview on La Colorada:

  • La Colorada Operations show US$25.9M NPV5, 11.9% IRR, US$53.9M CAPEX and 287k total ounces produced at a US$2,000/oz gold price
  • New mineral reserve at Junkyard Stockpile supports restart of mining at La Colorada that has commenced this month
  • El Crestón expansion at La Colorada is expected to produce over 50,000 ounces of gold per year
  • Current drill program (five drill rigs) is targeting lower CAPEX and increased production for updated technical report planned for mid-2025
Au Price
(US$/oz Au)
Net Cash Flow
(US$M)
After-Tax NPV
@ 5.0% Discount Rate
(US$M)
IRR
(%)
Payback Period
(years)
Payback Multiple
2,000 154.9225.9311.92.21.4
2,600 2158.32110.0334.71.42.3

 

News Provided by Newsfile via QuoteMedia

Keep reading...Show less

B2Gold Announces Amended Shareholder Return Strategy, including New Dividend Framework and Intention to Implement a Normal Course Issuer Bid

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") announces amendments to its shareholder returns strategy to increase financial flexibility as it completes its current phase of organic growth, including the anticipated commencement of initial production from Fekola Regional in Mali, the completion of construction of the Goose Mine in Nunavut, Canada, the development of the Antelope deposit at the Otjikoto Mine in Namibia, and de-risking activities at the Gramalote Project in Colombia. All dollar figures are in United States dollars unless otherwise indicated.

New Dividend Framework

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

B2Gold Announces Amended Shareholder Return Strategy, including New Dividend Framework and Intention to Implement a Normal Course Issuer Bid

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") announces amendments to its shareholder returns strategy to increase financial flexibility as it completes its current phase of organic growth, including the anticipated commencement of initial production from Fekola Regional in Mali, the completion of construction of the Goose Mine in Nunavut, Canada, the development of the Antelope deposit at the Otjikoto Mine in Namibia, and de-risking activities at the Gramalote Project in Colombia. All dollar figures are in United States dollars unless otherwise indicated.

New Dividend Framework

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

B2Gold Announces Total Consolidated Gold Production for 2024 of 804,778 oz, Within the Revised 2024 Guidance Range; Total Gold Production for 2025 Anticipated to be Between 970,000 and 1,075,000 oz; Goose Project Remains On Track for First Gold in Q2 2025 and Total Capital Estimate Remains at C$1,540 Million

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") is pleased to announce its gold production and revenue results for the fourth quarter and full year 2024, as well as its 2025 total gold production guidance and 2025 cost guidance for its current operating mines. All dollar figures are in United States dollars unless otherwise indicated.

Q4 and Full Year 2024 Highlights

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

Kinross to announce 2024 Q4/full-year results and 2025 guidance on February 12, 2025

Kinross Gold Corporation (TSX: K; NYSE: KGC) (the "Company") will release its 2024 fourth-quarter and full-year financial statements and operating results on Wednesday, February 12, 2025, after market close. The Company will also provide its full-year 2025 guidance, mineral reserve, and mineral resource statement as of December 31, 2024, and an exploration and project update. Kinross will hold a conference call and audio webcast on Thursday, February 13, 2025, at 8 a.m. ET to present the results, followed by a question-and-answer session.

The call-in numbers for the conference call on Thursday, February 13, 2025, at 8 a.m. ET are as follows:

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

Kinross to announce 2024 Q4/full-year results and 2025 guidance on February 12, 2025

Kinross Gold Corporation (TSX: K; NYSE: KGC) (the "Company") will release its 2024 fourth-quarter and full-year financial statements and operating results on Wednesday, February 12, 2025, after market close. The Company will also provide its full-year 2025 guidance, mineral reserve, and mineral resource statement as of December 31, 2024, and an exploration and project update. Kinross will hold a conference call and audio webcast on Thursday, February 13, 2025, at 8 a.m. ET to present the results, followed by a question-and-answer session.

The call-in numbers for the conference call on Thursday, February 13, 2025, at 8 a.m. ET are as follows:

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less
Antilles Gold Limited

Antilles Gold Limited Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

Latest Press Releases

Related News

×