Patagonia Gold
Patagonia Gold give the green light to Lomada da Leiva
Patagonia Gold's Lomada da Leiva project in Argentina's Santa Cruz province was acquired along with a portfolio of exploration projects from Barrick Gold less than two years ago in February 2007.
The property had already been drilled to a limited extent, and following further resource drilling, during which an indicated/measured resource of 161,346 ounces was defined, plus a further 74,000 ounces in the inferred category, PGD felt confident enough to go straight to a scoping study. This had the dual aim of progressing to cash flow as soon as possible, and circumventing the need to pay Barrick a further $1.5 million dollars if an indicated resource of more than 200,000 ounces was delineated.
Today, PGD announced the results of the scoping study conducted by Chlumsky, Armbrust and Meyer, LLC (CAM), which suggests that in approximately one year's time, PGD will be mining gold from the project.
Three processing scenarios were examined, including conventional grinding and milling, heap leaching following crushing/screening for improved recovery, and straight ROM heap leaching. Whilst metallurgical testing of conventional processing did show potential recovery of 97% of the contained gold, both capital and operating costs are high. Therefore PGD have initially chosen the ROM heap leaching route, due to its low capex requirement, low operating costs and reasonable recovery of approximately 80% of the contained gold. Although PGD do point out that this projected 80% recovery could be pessimistic due to the free leaching nature of the ore.
On this basis CAM have modelled an open pit mine producing 21,000 ounces of gold per annum, with a 1:1.25 stripping ratio, cash costs of just $299 per ounce and a 14 month payback. At $650 gold this suggests free cash flow of some US$35 million over a 7 year minelife, whilst at US$850 gold, the project will produce US$76.7 million. After tax NPVs at US$650 gold and US$850 gold are US$18.9 million and $36.9 million respectively. These figures have been prepared on the basis of 100% equity financing, and take into account all applicable export taxes, royalties, etc.
There is significant resource upside at Lomada da Leiva, both down dip and along strike, and at the adjacent Brecci Sofia project, which – once mining has commenced - could significantly extend the life of the Project and provide PGD with positive cash flow for the foreseeable future. In addition, the availability of higher tonnage throughput from increased resources could see unit costs dropping sufficiently to allow the addition of a crush circuit to the operation, which would enhance gold recovery to 93% and improve profitability.
The company will now move forward to an Environmental and Social Impact Study, with a view to commencing a trial heap leaching operation in the second half of 2009. MD Bill Humphries commented: “The development of the Lomada de Leiva Project will move Patagonia Gold to be cash positive by mid 2011 and, with the high cash flow generated in the early years of operation, will assist in the rapid development of the much larger Cap-Oeste Project.”
Other Patagonia Gold articles
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18/03/09 Patagonia Gold is cashed up and running
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21/11/08 Patagonia Gold Scores Twice with Maiden Resource for Cape-Oeste and Positive Scoping Study for Lomada de Leiva
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31/03/08 Patagonia Gold - Esquel? Encore!
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27/02/07 Patagonia Gold acquires Barrick Projects
Other Patagonia Gold news
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04/03/10 Patagonia Gold contracts NI43-101 resource estimate for La Manchuria project
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01/12/09 Patagonia Gold reports exceptionally high grade bonanza gold mineralisation at Cap-Oeste
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30/11/09 Patagonia Gold’s key projects included in new “Area of Special Interest for Mining” in Santa Cruz
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10/11/09 Patagonia Gold reports bonanza gold and silver grades from La Manchuria
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08/10/09 Patagonia Gold ups Cap-Oeste resource estimate 89%, commences follow-up drilling
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18/09/09 Patagonia Gold says exploration activities at La Paloma and El Tranquilo progressing well
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23/06/09 Patagonia Gold's Cap Oeste gold-silver project shows persistent grades and widths at depth
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12/06/09 Fairfax says ‘buy’ Patagonia Gold, target price 22p
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09/06/09 New discoveries at Patagonia Gold's El Tranquilo gold project
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11/05/09 Further excellent drilling results from Cap Oeste lift Patagonia Gold
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