PR Newswire
VANCOUVER, April 11, 2017
NYSE - MKT: ASM
TSX-V: ASM
FSE: GV6
VANCOUVER, April 11, 2017 /PRNewswire/ - Avino Silver & Gold Mines Ltd. (ASM: TSX.V, ASM: NYSE – MKT, GV6: FSE, "Avino" or "the Company") is pleased to announce that it has completed an updated Preliminary Economic Assessment ("PEA") of retreating the Avino mine tailings in Durango, Mexico, which includes the results from the Company's recent 2016 Resource Estimate (see news release dated September 26, 2016) for the Avino property which included the San Gonzalo Mine, the main Avino Mine system, and the property's Oxide Tailings. Summaries of the current resources used for the PEA, a preliminary Life of Mine Plan (LOMP), operating costs, capital costs and project economics are presented in tables below. The PEA has been prepared in accordance with National Instrument 43-101, and a compliant Technical Report is being completed by Tetra Tech Canada Inc. ("Tetra Tech"), and the PEA will be filed on SEDAR and with the U.S. Securities and Exchange Commission within 45 days of this release. All currency values are presented in US$ unless otherwise specified.
Highlights of the Oxide Tailings Preliminary Economic Assessment
Mr. David Wolfin, President and CEO stated, "We are extremely pleased with the very attractive economics of the Oxide Tailings Resource PEA. These positive results will enable us to plan the next steps, identify any additional studies and move forward in advancing the oxide tailings project. We intend to follow the recommendations contained in the Technical Report, which will include the pre-feasibility phase, and we continue to review alternative approaches for the storage of existing tailings."
The Oxide Tailings deposit comprises historic recovery plant residue material deposited during the earlier period of open pit mining of the Avino Vein, when there were poor process plant recoveries for silver and gold. The oxide tailings are partially covered by younger unconsolidated sulphide tailings on the northwest side of the property.
Economic and Operational Highlights
The PEA incorporated Base Case metal prices of $18.50/oz silver, and $1,250/oz gold. Highlights of the Base Case economic estimates for the Oxide Tailings Resource are shown in the following table:
The base case PEA provides a solid foundation for focused growth and demonstrates the value of the existing infrastructure, and outlines a low capital cost option with attractive returns.
The PEA focuses on the Oxide Tailings Retreatment of the Avino mine as a stand alone project with an initial 7 year life of mine plan ("LOMP"). The Sulphides will be considered during the pre-feasibility study stage, and evaluated as to their own economic viability. This approach provides attractive economic returns using lower initial capital costs.
The Financial results for the base case are presented in the table below:
Description | Base |
Gold Price (US$/oz) | 1,250 |
Silver Price (US$/oz) | 18.5 |
Total Payable Metal Value (US$'000) | 148,892 |
Refining (US$'000) | 6,123 |
Transportation, Insurance (US$'000) | 214 |
At-mine Revenue (US$'000) | 142,555 |
Operating Costs (US$'000) | 47,034 |
Operating Cash Flow (US$'000) | 95,521 |
Pre-production Capital (US$'000) | 24,363 |
Sustaining Capital (US$'000) | 4,352 |
Salvage Value (US$'000) | -861 |
Reclamation Cost (US$'000) | 606 |
Total Capital Expenditure, Including Reclamation and Salvage (US$'000) | 28,460 |
Cash Operating Costs (US$/oz Ag Payable, net of Au credit) | 2.21 |
Capital Costs (US$/oz Ag Payable) | 4.85 |
Total Costs (US$/oz Ag Payable) | 7.07 |
Net Cash Flow (US$'000) | 67,061 |
Discounted Cash Flow NPV (US$'000) at 5.00% | 48,922 |
Discounted Cash Flow NPV (US$'000) at 8.00% | 40,554 |
Discounted Cash Flow NPV (US$'000) at 10.00% | 35,786 |
Payback (years) | 2.0 |
IRR (%) | 48.4 |
The life of project average material tonnages, grades and metal production are shown below:
Description | Value |
Total Tonnes to Mill | 3,122,000 |
Design Annual Tonnes to Mill | 500,000 |
Plant availability | 90% |
Mine Life (Years) | 7 |
Average Grades | |
Gold (g/t) | 0.43 |
Silver (g/t) | 87.75 |
Total Production | |
Gold (ozs) | 33,000 |
Silver (ozs) | 6,173,000 |
Average Annual Production | |
Gold (ozs) | 4,660 |
Silver (ozs) | 881,920 |
|
PEA Study Parameters and basis of Financial Evaluations
The production schedule was incorporated into the 100% equity pre-tax financial model to develop annual recovered metal production from the relationships of tonnage processed, head grades, and recoveries.
Gold and silver payable values were calculated utilizing base case metal prices. Net invoice value was calculated each year by subtracting the applicable refining charges from the payable metal value. At-mine revenues are then estimated by subtracting transportation and insurance costs. Operating costs for mining, processing, and G&A were deducted from the at-mine revenues to derive annual operating cash flow.
Initial and sustaining capital costs as well as working capital have been incorporated on a year-by-year basis over the mine life. Salvage value and mine reclamation costs are applied to the capital expenditure in the last production year. Capital expenditures are then deducted from the operating cash flow to determine the net cash flow before taxes.
Initial capital expenditures include costs accumulated prior to first production of dore. Sustaining capital includes any capital expenditures required during the production period. Initial and sustaining capital costs applied in the economic analysis are US$24.36 million and US$4.35 million, respectively.
The Company cautions that the PEA is preliminary in nature in that it is based on Inferred Mineral Resources which are considered too speculative geologically to have the economic considerations applied to them that would enable them to be characterized as mineral reserves, and there is no certainty that the PEA will be realized. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
Sensitivity Analysis
Sensitivities of the project's NPV, IRR and payback period to the Project key variables were investigated. Using the base case as reference, all of the key variables were changed between -30%/+30% at a 10% interval while holding the other variables constant. The project NPV is most sensitive to the silver price, and in descending order gold price, operating costs; and capitals costs. The project IRR is most sensitive to the capital costs and the silver price, followed by the gold price and operating costs and the gold price. The payback period is also most sensitive to the silver price, followed by capital costs, operating costs and the gold price.
Post-Tax Economic Analysis
Avino commissioned PricewaterhouseCoopers 'PwC' in Mexico to prepare the tax component for the post-tax economic evaluation for this updated PEA with the inclusion of applicable income and mining taxes, and the results are as follows:
| Unit | Base Case |
Gold | US/oz Werbung Mehr Nachrichten zur Avino Silver & Gold Mines Aktie kostenlos abonnieren
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