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Honduras
San Andres Mine

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 Location:
18 km W from Santa Rosa de Copán, Honduras

  Address:
Barrio El Calvario, 4ta Avenida S.O.
Santa Rosa de Copan
Honduras
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Fax+(504) 2662-1231
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life9 years (as of Jan 1, 2020)


Owners

Source: p. 38
CompanyInterestOwnership
Aura Minerals Inc. 100 % Indirect
Minerales de Occidente, S.A. de C.V (operator) 100 % Direct
The Mine’s surface and mineral rights are owned by Minerales de Occidente, S.A. de C.V. (“Minosa”), a wholly-owned indirect subsidiary of Aura existing under the laws of Honduras.

Mine Operator: Sociedad Mercantil Minerales de Occidente S.A. de C.V. (MINOSA).

Contractors

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Deposit Type

  • Vein / narrow vein
  • Epithermal


Summary:

The gold deposits at the Mine are hosted within Tertiary-aged felsic volcanic flows, tuffs and agglomerates, thick inter-bedded silica breccias, primarily containing volcanic fragments and tuffaceous sandstones. These volcanic units occur on the south (hanging wall side) of the San Andres Fault. The fault strikes west-east and dips at 60° to 70° south and it marks the northern boundary of the Water Tank Hill and East Ledge pits. The fault forms the contact between the Permian phyllites (metasediments) to the north and the volcanic units on the south. Mineralisation within the phyllites is limited to the Buffa Zone where quartz carbonate veining proximal to the San Andres Fault. South of the Mine area, where there is no alteration, the volcanic and sedimentary rocks have a distinctive hematite brick red color but, in the Mine area, they have been bleached to light buff yellow and grey colors due to alteration. The younger volcanic and sedimentary units typically have a shallow to moderate southerly dip and thicken to the south of the Mine area.

Structurally, the Mine area is transected by a series of sub-parallel, west to northeast-striking faults that are typically steeply dipping to the south and by numerous north and northwest-striking normal faults and extension fractures. The most prominent fault of the 35 first set is the San Andres Fault. The San Andres Fault is parallel to, and coeval with, a major set of west to north-northeast trending strike-slip faults t ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining at San Andrés is by conventional open pit methods. Historical production rates for the years 2009 to 2013 averaged approximately 13,000 t of ore and 10,000 t of waste produced daily with generally continuous mining 24 hours a day for 360 days per year.

The San Andrés Mine is anticipating a material expansion in ore throughput from approximately 5Mtpa to 7Mtpa. This expansion was justified by the improved incremental economics with modest capital investment.

Mine production utilizes conventional drill and blasting methods with excavation on 6m high benches.


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2022202120202019201820172016
Gold Equivalent koz  ......  Subscription required ^
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Total tonnes mined  ......  Subscription required  ......  Subscription required8,944,455 t10,151,653 t11,676,853 t11,913,532 t
Ore tonnes mined  ......  Subscription required  ......  Subscription required5,178,049 t6,042,075 t6,693,329 t6,531,161 t
Waste  ......  Subscription required  ......  Subscription required3,766,406 t4,109,579 t4,983,524 t5,382,371 t
Stripping / waste ratio  ......  Subscription required  ......  Subscription required0.73 0.68 0.74 0.82
Tonnes processed  ......  Subscription required  ......  Subscription required5,172,718 t6,065,192 t6,699,350 t6,459,139 t
Daily processing capacity  ......  Subscription required  ......  Subscription required20,000 t20,000 t20,000 t
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Reserves at December 31, 2021:
Mineral Reserves have been estimated at a cut-off grade of 0.26 g/t for oxide material and 0.35 g/t for mixed material, with dilution of 5% and mining recovery of 95%.

The Mineral Resource cut-off grade used was 0.23 g/t for oxide material and 0.30 g/t for mixed material.

CategoryTonnage CommodityGradeContained Metal
Proven 15,748 kt Gold 0.55 g/t 276 koz
Probable 26,617 kt Gold 0.55 g/t 475 koz
Proven & Probable 42,365 kt Gold 0.55 g/t 751 koz
Measured 18,633 kt Gold 0.56 g/t 334 koz
Indicated 41,977 kt Gold 0.57 g/t 766 koz
Measured & Indicated 60,610 kt Gold 0.56 g/t 1,100 koz
Inferred 4,004 kt Gold 0.8 g/t 103 koz

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
Cash costs (sold) Gold Equivalent USD  ......  Subscription required&nbs
Cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 959 / oz   849 / oz   821 / oz  
^ Guidance / Forecast.
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 7.1   5.8   4.6  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 82.2   96.9   89.5  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -0.2   16.9   14.2  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -1.4  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Aug 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 21, 2022
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Corporate Presentation 2018
Financial Review 2018
Management Discussion & Analysis 2018
Annual Information Form 2017
Financial Review 2017
Management Discussion & Analysis 2017
Annual Information Form 2016
Management Discussion & Analysis 2016
Annual Information Form 2015
Management Discussion & Analysis 2015
Technical Report 2014
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