THE INSIDE STORY: Perth-based exploration play, Galena Mining (ASX: G1A) is making rapid progress developing the company’s 100 per cent-owned Abra lead-silver project in Western Australia.
The Abra lead-silver project is part of the company’s broader Abra base metals project, a regional tenement package in the Gascoyne region of WA that Galena believes holds potential for copper-gold deposits as well as further lead-zinc-silver deposits.
“We listed last year with the development of the Abra lead-silver deposit in Western Australia as our primary focus,” Galena Mining chief executive officer Ed Turner told The Resources Roadhouse.
“That is our focus and we are going flat out as we strongly believe that lead is not dead.
“The past ten years the London Metal Exchange (LME) lead stocks have been depleted due to not enough supply hitting the market.
“As a result, the price of lead has risen significantly during that time.”
Turner’s optimism and the company’s timing for the development of the Abra mine seems well placed as both coincide with a strong outlook for lead.
Although having been mined and used since people started digging materials out of the ground and using them to enhance their lifestyles, lead, just as some of its peer metals, has enjoyed renewed popularity.
Modern vehicles – be they electric or old school combustion engine driven – make up the largest use of lead in manufacture of batteries, which accounts for around 80 per cent of modern lead usage.
The remaining 20 per cent of applications include other traditional uses, such as weights and ballast, underwater cable sheathing, solder, casting alloys, chemical compounds, including PVC plastics and pigments, ammunition, glassware and radiation protection.
As technology advances, so too are expected uses for lead in the form of large storage batteries used for load-levelling of electrical power and in electric vehicles.
The growing market for electric bikes, in China alone, has led to an increase in demand for lead to make batteries for e-bikes.
Galena Mining recently released a Scoping Study for Abra that confirmed the lead-silver project as an economically and technically robust opportunity, with potential to become a long-life, high margin West Australian lead-silver producer.

The study delivered a pleasing economic outcome for the project by demonstrating that on pre-tax post royalties it can deliver a Base Case Net Present Value (NPV) of $394 million with an Internal Rate of Return (IRR) of 61 per cent (based on long term lead price of US$0.95 per pound, silver price of US$16.50 per ounce and USD: AUD of $0.75).
The study determined an initial mine life of 11 years, with opportunities identified to extend beyond 11 years, operating an annual throughput of one million tonnes per annum, with average grades of 9.7 per cent lead and 15g/t silver, producing 91,000 tonnes of lead and 450,000 tonnes of silver annually.
Processing of the ore will comprise conventional, off the shelf equipment, including crushing, grinding and two stages of conventional flotation and filtration to produce a lead-silver concentrate.
The processing facility construction cost is estimated at $66 million including $6 million of contingency costs.
Galena anticipates construction to commence during Q3 in 2019, with a 15-month time frame for commissioning.
The planned mining method will be via an underground mine accessed by a decline.
Mining activity is expected to commence early 2021 with the underground extraction undertaken through sublevel open stoping mining and partly by room and pillar mining, which in concert with paste filling high value stopes, will enable maximum extraction of the orebody.
“Our location in the Gascoyne region of Western Australia, not too far from the De Grussa mine, is advantageous, as we are looking at trucking the concentrate product,” Turner said.
“Should we produce one million tonnes per year from underground that will translate into around 130,000 tonnes of concentrate that we can truck down to Geraldton Port where they already export a lead concentrate product from Golden Grove and have done for some 20 years.
“We have all the permits in place for that.”
Average life of mine cash (C1) costs came in at US$0.46 per pound and total costs (C3) costs of US$0.56 per pound, including all royalties, making the proposed mine a high-margin, strongly cash generative operation.
Current market conditions and a favourable outlook for lead indicate strong upward movement in demand and pricing.
The lead price has averaged US$0.97 per pound over the last 10 years and peaking at US$1.14 per pound during June 2018.
The study was based on a lead price assumption of US$0.95 per pound.
Average LOM revenues are estimated to hit $251 million with operating cash flows of $104 million per year.
Pre-production CAPEX is estimated to be $153 million with a payback period of approximately 18 months.
The study incorporated a JORC code 2012-compliant Resource the company released in March this year, including:
Indicated Resource of 5.3 million tonnes at 10.6 per cent lead and 28 grams per tonne silver and an Inferred Resource of 5.9 million tonnes at 9.7 per cent lead and 29g/t silver (using a 7.5 per cent lead Pb cut-off) for a combined 11.2 million tonnes at 10.1 per cent lead and 28g/t silver.
This sits within a larger Indicated Resource of 13.2 million tonnes at 7.9 per cent lead and 19g/t silver and an Inferred Resource of 23.5 million tonnes at 6.9 per cent lead and 17g/t silver (using a 5 per cent lead cut-off) for a combined 36.6 million tonnes at 7.3 per cent lead and 18g/t silver.
“We proved up this high-grade Resource thanks to the amount of drilling we were quickly able to complete after listing just late last year,” Turner said.
“We drilled 8,000 metres of diamond core drilling between September and December 2017, which enabled us to establish that Resource estimate of 11 million tonnes at 10 per cent lead making Abra the highest-grade lead deposit in Australia.”

The Scoping Study results followed metallurgical testwork that demonstrated very high metal recoveries could be achieved at the project to produce an exceptionally high-grade and clean lead-silver concentrate.
The metallurgy results exceed the company’s expectations and what it had modelled previously.
Composite samples delivered lead concentrate grades ranging from 69 per cent to 81 per cent (averaging 74.5 per cent) with recoveries between 94 and 96 per cent (averaging 95 per cent).
Being able to produce such high lead grades in concentrate enables Galena to increase metallurgical recoveries above 96 per cent if it so desired while maintaining an extremely high lead-in-concentrate product.
“The exceptionally high-grade and clean lead-silver concentrate achieved at very high recovery grades should be viewed as having de-risked the metallurgy component of the project,” Turner said.
“It shows we are able to produce a very highly saleable product and a lot of smelters in China and Europe should be very keen to get their hands on it.”
For now, Galena’s next steps involve completing a Pre-Feasibility by September 2018 and completing further infill drilling to convert more JORC Inferred Resource material to the higher confidence classification of Indicated.
The company is also carrying out marketing exercises with potential buyers (i.e. smelters and traders) to obtain contract terms for Abra’s lead concentrate.
Galena Mining Limited (ASX: G1A)
… The Short Story
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