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Brazil
Santa Luz Mine (Santa Luz C1 UG Expansion Project)

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 Location:
28 km N from Santaluz, Brazil
  Address:

Santaluz
Brazil
48880-000
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WebsiteWeb
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life9.5 years (as of Jan 1, 2020)
First gold was poured at the Santa Luz on March 30, 2022 and commercial production was achieved on October 1, 2022. When operating at capacity, and with optimized recoveries, Santa Luz is expected to produce approximately 100,000 oz of gold annually, with expansion potential from underground development.

Owners

Source: p. 13
CompanyInterestOwnership
Equinox Gold  Corp. 100 % Indirect

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • Orogenic
  • Vein / narrow vein

Summary:

Mineralization at the Santa Luz Project is consistent with an orogenic gold deposit type. Orogenic gold deposits are distributed along major compressional to transpressional crustal-scale fault zones, in deformed greenstone terranes commonly marking the convergent margins between major lithological domains, such as volcano-plutonic and sedimentary domains.

In the Project area, gold deposits are hosted within the Paleoproterozoic aged Rio Itapicurú Greenstone Belt (RIGB), which was deformed and metamorphosed during the Trans-Amazon Orogeny (approximately 2 Ga). Gold mineralization mainly occurs with fault-related quartz-sulphide and quartz-carbonate-sulphide veining and quartz-sulphide breccia. Alteration includes sericitization, carbonate alteration, albitization, sulphidation, and silicification.

Gold deposits and prospects in the Project area occur in silicified breccia zones at or proximal to the faulted contact of the volcanic and sedimentary domains of the RIGB. Significant gold targets and deposits in the Santa Luz trend include the C1 (formally called Maria Preta and including Antas 1), Antas 2, Antas 3, the Mansinha Trend (South, including M11 and M3-M4, and North, including M16 and M17), and the Mari Deposit.

The C1, Antas 2, Antas 3, Mansinha South (including the M11 and M3-M4 zones), Mansinha North (including the M16 and M17 zones), and Mari deposits are hosted in a set of three parallel, gently to moderately dipping, reverse and/o ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

Santa Luz project is based on open pit mining with production from three pits: one pit at the C1 deposit and two small pits at the Antas 3 deposit. Pit bench heights will be 10 m and be mined in two 5 m flitches with a safety berm every 10 m. The ore and waste rock will be drilled and blasted, loaded with front end loaders, and hauled to either a crusher or waste rock dump. Haulage distances from the open pit to the crusher area will vary, with an average haul distance of approximately 3.9 km for C1 and 2.5 km for Antas 3. Mining will be carried out by contractors and mine technical services will be provided by Santa Luz personnel.

The mine will operate on a general production schedule of 24 h/d, 7 d/wk. The LOM is nine years for C1, and six years for Antas 3. The average mining rate will be approximately 15.3 Mt/a and the maximum mining rate will be approximately 22.0 Mt/a of ore and waste mined including some overlap of mining between deposits. The LOM is estimated to be 9.5 years, including 1.5 years of post-production processing of stockpiles.

The dimensions of the loaders, haul trucks, and excavators were evaluated to define the minimum mining width and ramp design. Ramp road grades were limited to 10% or less. Road widths were designed to be approximately 25 m wide from toe to crest for the C1 and Antes 3 deposits, with exception to single lanes used for mining the last benches.

A minimum mining width of 20 m was used for the pit desig ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits20232022Avg. Annual (Projected)LOM (Projected)
Gold koz  ......  Subscription required ^  ......  Subscription required95903
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational Metrics:

Metrics2022
Daily processing capacity  ......  Subscription required
Annual processing capacity  ......  Subscription required
Stripping / waste ratio  ......  Subscription required
Ore tonnes mined  ......  Subscription required
Waste  ......  Subscription required
Total tonnes mined  ......  Subscription required
Tonnes processed  ......  Subscription required
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Reserves at June 30, 2020:
Mineral Reserves are quoted at cut-off grades of 0.52 g/t Au for dacite-leachable and carbonaceous ores for the C1 deposit; and cut-off grades of 0.54 g/t Au for dacite-leachable and carbonaceous ores and 0.45 g/t Au for dacite-high-sulphide ore for the Antas 3 deposit.

Open Pit Mineral Resources are reported at a cut-off grade of 0.50 g/t Au.
Underground Mineral Resources are reported at a cut-off grade of 1.5 g/t Au.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 21,578 kt Gold 1.39 g/t 966,106 oz
Probable Stockpiles 2,191 kt Gold 0.86 g/t 60,634 oz
Probable In-Situ (OP) 1,170 kt Gold 1.28 g/t 48,202 oz
Proven & Probable Total 24,939 kt Gold 1.34 g/t 1,074,941 oz
Measured In-Situ (OP) 9,986 kt Gold 1.22 g/t 390,306 oz
Measured In-Situ (UG) 121 kt Gold 1.94 g/t 7,561 oz
Indicated In-Situ (OP) 562 kt Gold 0.99 g/t 17,924 oz
Indicated In-Situ (UG) 5,913 kt Gold 2.55 g/t 484,066 oz
Measured & Indicated Total 16,582 kt Gold 1.69 g/t 899,857 oz
Inferred Total 7,254 kt Gold 2.09 g/t 490,115 oz

Commodity Production Costs:

CommodityUnits20232022
Cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units2022
OP mining costs ($/t mined) USD 1.33  
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units20232022
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required
Revenue M USD  ......  Subscription required
Operating Income M USD  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment as of October 1, 2022:
HME TypeModelQuantityLeased or
Contractor
Bulldozer ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Grader ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Rockbreaker ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (water) ....................... Subscription required Leased
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2020
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2020
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 11, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Fact Sheet 2023
Annual Information Form 2022
Corporate Presentation 2022
Fact Sheet 2022
Financial Review 2022
Management Discussion & Analysis 2022
Press Release 2022
................................... 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
Corporate Presentation 2018
Feasibility Study Report 2018
Press Release 2018
Pre-Feasibility Study Report 2016
Year-end Mineral Reserves 2016
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