{"id":3117,"date":"2023-12-13T00:54:34","date_gmt":"2023-12-13T00:54:34","guid":{"rendered":"https:\/\/economicherald.net\/?p=3117"},"modified":"2023-12-13T00:54:34","modified_gmt":"2023-12-13T00:54:34","slug":"challenger-gold-sniffs-out-cost-effective-gold-silver-concentrate-upgrade-into-dore-for-hualilan","status":"publish","type":"post","link":"https:\/\/economicherald.net\/?p=3117","title":{"rendered":"Challenger Gold sniffs out cost-effective gold-silver concentrate upgrade into dor\u00e9 for Hualilan"},"content":{"rendered":"

Metallurgical work outlines simple pathway to produce dor\u00e9 on site
\nOpportunity to revise scoping study with better project economics
\nPFS underway with recent test work to be incorporated<\/p>\n

\u00a0<\/p>\n

Special Report<\/em><\/strong>: Metallurgical test work has found a way to upgrade gold-silver concentrates into dor\u00e9 from its Hualilan project in Argentina, providing an opportunity to improve project economics outlined in a recent scoping study. <\/strong><\/p>\n

Steaming ahead to become one of Argentina\u2019s next gold producers, Challenger Gold (ASX:CEL)<\/strong><\/a> is targeting lowering capital costs and de-risking measures prior to releasing feasibility studies for its Hualilan project.<\/p>\n

A recent scoping study for Hualilan<\/strong><\/a> focused exclusively on the 2.8Moz project\u2019s high-grade core of 1.6Moz @ 5g\/t gold equivalent (AuEq) that will deliver 116,000ozpa gold, 440,000ozpa silver and 9,175t of zinc for 141,000oz AuEq, raking in $1 billion in earnings over a 7-year mine life.<\/p>\n

Hualilan comes with a relatively low capex of just $211.1m with a 1.25-year payback period and low AISC of just $1,291\/oz.<\/p>\n

The Hualilan gold project with mineralisation open in all directions. Pic via CEL<\/p>\n

\u00a0<\/strong><\/p>\n

Improved recoveries, increased payability<\/strong><\/h2>\n

Metallurgical work conducted is showing room for further improvements to project economics after CEL discovered it could convert the gold-silver concentrate produced by the flotation circuit into dor\u00e9 on site, thereby reducing transport and refining and processing costs, as well as increasing payability of gold from 95% to 99.5% and payability on silver from 60% to 97.5%.<\/p>\n

It\u2019s also considering the inclusion of a heap leach alongside a floatation or CIL circuit, to capture value from the low-grade portion of the Hualilan orebody, a measure excluded under the low-risk\/high-grade\/low-tonnage scoping study strategy.<\/p>\n

CEL is also looking at a reduction in the cut-off grade of zinc ore fed into the flotation circuit, based after finding that economic zinc concentrate can be produced from low-grade zinc samples, leading to additional recoveries from 263,000t zinc resource beyond the 70,000t recovered as per the scoping study.<\/p>\n

To add to this, CEL also recently signed an MoU with Argentina power YPF S.A to purchase renewable power<\/strong><\/a> for Hualilan which further lowers capital costs and reduces emissions.<\/p>\n

CEL MD Kris Knauer says the test work demonstrates a clear and simple pathway to produce gold dor\u00e9 on site, which has several benefits for the project.<\/p>\n

\u201cFirstly, it removes some $100 million in costs associated with the transport and treatment of gold-silver concentrate,\u201d Knauer says.<\/p>\n

\u201cSecondly, it increases the payability on the gold produced and removes the delay associated with payment for gold sold via a concentrate reducing working capital requirements.<\/p>\n

\u201cThis is an excellent outcome from the first of a series of metallurgical tests targeting several material opportunities we have identified to improve the already attractive Hualilan scoping study economics.\u201d<\/p>\n

Knauer says that the company hopes to have the testwork that will determine if heap leaching is a viable option for the million ounces of low-grade mineralisation out to market before the end of the year.<\/p>\n

\u201cThis is the wildcard that could increase the scale of the project beyond the current 140,000ozpa AuEq.\u201d<\/p>\n

<\/h2>\n

Optimisation work and further exploration on the horizon<\/strong><\/h2>\n

Next steps will involve additional intensive-leach tests on the representative concentrate sample to optimise for grind size and reagent consumption against gold-silver recovery to maximise the improvement in projected economics from the production of dor\u00e9 on site.<\/p>\n

CEL is also currently working on its PFS for Hualilan and conducting regional exploration along the previously unexplored 30km prospective stratigraphy.<\/p>\n

\u00a0<\/p>\n\n

\ufeff<\/span>\u00a0<\/p>\n

This article was developed in collaboration with Challenger Gold, a Stockhead advertiser at the time of publishing.<\/em><\/p>\n

\u00a0<\/p>\n

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.<\/em><\/p>\n

<\/span><\/p>\n

The post Challenger Gold sniffs out cost-effective gold-silver concentrate upgrade into dor\u00e9 for Hualilan<\/a> appeared first on Stockhead<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Metallurgical work outlines simple pathway to produce dor\u00e9 on site Opportunity to revise scoping study with better project economics PFS underway with recent test work [more…]<\/a><\/p>\n","protected":false},"author":0,"featured_media":3118,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-finance"],"yoast_head":"\nChallenger Gold sniffs out cost-effective gold-silver concentrate upgrade into dor\u00e9 for Hualilan - Economic Herald<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/economicherald.net\/?p=3117\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Challenger Gold sniffs out cost-effective gold-silver concentrate upgrade into dor\u00e9 for Hualilan - 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