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Mexico
Media Luna Project

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 Location:
14 km NW from Mezcala, Guerrero, Mexico

  Project Contacts:
Av. Lazaro Cárdenas No. 42, Col. Universal
Chilpancingo
Guerrero, Mexico
39080
Phone  ...  Subscription required
Fax01-(736)-735-4046
EmailEmail
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Mechanized Cut & Fill
  • Transverse stoping
  • Longitudinal retreat
  • Paste backfill
Production Start...
Mine Life8.25 years (as of Jan 1, 2022)
The Board of Directors approved the Media Luna Project in March 2022 and construction is well underway, with anticipated commercial production in Q1 2025.
Latest NewsTorex Reports Encouraging Results From Drilling at EPO     March 23, 2023


Owners

Source: p. 34
CompanyInterestOwnership
Torex Gold Resources Inc. 100 % Indirect

Contractors

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Deposit Type

  • Skarn


Summary:

The Media Luna deposit is located on the south side of the Balsas River, ~7 km south south-west of the ELG Mine Complex.

Systematic drilling has identified a gold-copper-silver mineralized skarn with approximate dimensions of 1.4 km x 1.2 km and ranging from 4 m to greater than 70 m in thickness. The mineralization occurs in most parts around 500 m below surface but crops out at surface at the north side of the Media Luna ridge. Skarn alteration and associated mineralization is open on the east, southeast, southwest, and northwest margins of the area.

The surface geology of the Media Luna area is dominated by Morelos Formation limestone, which is intruded by numerous porphyry dykes and sills. The contact between the Morelos Formation and the El Limón granodiorite stock is exposed in the northern sector of the area, and Mezcala Formation sediments are present in the southern portion of the area. Morelos Formation limestone is typically converted to grey to white marble along with the intrusive contacts, often accompanied by clay and iron-oxide. The Mezcala Formation is locally converted to biotite–hornfels where cut by dykes and sills. The mineralization hosting skarn occurs at the contact of the El Limón granodiorite with the Morelos limestone. The skarn, like the wall rocks, is intruded by numerous porphyritic dykes and sills.

Media Luna is a magnesian skarn and has formed where rocks are more dolomitic, whereas ELG is a calcic skarn. Refle ........


Mining Methods

  • Mechanized Cut & Fill
  • Transverse stoping
  • Longitudinal retreat
  • Paste backfill


Summary:

The ML Mineral Reserve is divided into two relatively distinct zones; MLL and MLU. The mine design uses primarily LHS with paste backfill and some MCAF stoping. The mine design provides operational flexibility for planning and scheduling while targeting high grade material early in the production life. The mine design divides the mine into blocks which can operate as independent areas but share a main access and materials handling system to transport mineralized material under the Rio Balsas to the ELG Process Plant.

Media Luna will be accessed via three portals and tunnels: Guajes portal and tunnel on the north side of the Rio Balsas at the ELG Mine Complex and South Portal Upper (SPU) and South Portal Lower (SPL) portals and tunnels on the south side of the Rio Balsas near San Miguel. There are box cuts and portals constructed at each site to facilitate tunnel development and the life of mine operation. The plan to maintain the ELG Mine Complex as the main access route provides benefits from a social, environmental, security and operational perspective.

Guajes Tunnel
The Guajes Tunnel will be the main haulage route for life of mine operation and the primary access for personnel and material movement from surface to underground.

The Guajes Tunnel profile is 6.0 m wide by 6.5 m high and is approximately 6.5 km long with a maximum gradient of 13%. For the development phase, one 1,830 mm diameter and one 1,520 mm temporary ventilation d ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsDailyLOM
Gold Payable metal koz 1,964
Silver Payable metal koz  ......  Subscription required
Copper Payable metal M lbs  ......  Subscription required
Gold Equivalent Payable metal koz  ......  Subscription required
Copper Concentrate kt  ......  Subscription required *

Operational Metrics:

Metrics
Ore tonnes mined, LOM  ......  Subscription required
Daily processing capacity  ......  Subscription required
Annual processing capacity  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at October 31, 2021:
Mineral Reserves are reported above a diluted ore cut-off grade of 2.2 g/t AuEq. Media Luna gold equivalent (AuEq) = Au (g/t) + Ag (g/t) * (0.011188) + Cu (%) * (1.694580), accounting for metal prices and metallurgical recoveries.
Mineral Resources are reported above a 2.0 g/t AuEq cut-off grade. Media Luna AuEq = Au (g/t) + (Ag (g/t) * 0.011889) + (Cu (%) * 1.648326). EPO AuEq = Au (g/t) + Ag (g/t) * (0.011385) + Cu % * (1.621237).

CategoryTonnage CommodityGradeContained Metal
Probable 23,017 kt Gold 2.81 g/t 2,077 koz
Probable 23,017 kt Silver 25.6 g/t 18,944 koz
Probable 23,017 kt Copper 0.88 % 444 M lbs
Probable 23,017 kt Gold Equivalent 4.54 g/t 3,360 koz
Indicated 25,380 kt Gold 3.24 g/t 2,642 koz
Indicated 25,380 kt Silver 31.5 g/t 25,706 koz
Indicated 25,380 kt Copper 1.08 % 602 M lbs
Indicated 25,380 kt Gold Equivalent 5.38 g/t 4,394 koz
Inferred 5,991 kt Gold 2.47 g/t 476 koz
Inferred 5,991 kt Silver 20.8 g/t 3,998 koz
Inferred 5,991 kt Copper 0.81 % 106 M lbs
Inferred 5,991 kt Gold Equivalent 4.05 g/t 780 koz

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
UG mining costs ($/t mined) USD 33.4 *
* According to 2022 study.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
UG OpEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
After-tax NPV @ 0% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Pipelines
TypeMaterialDiameterLengthDescription


Proposed Heavy Mobile Equipment as of March 16, 2022:
HME TypeSizeQuantity
ANFO Loader ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 22, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Corporate Presentation 2022
Preliminary Economic Assessment 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Information Form 2018
Preliminary Economic Assessment 2018
Corporate Presentation 2016
Preliminary Economic Assessment 2015
Technical Report 2013
Subscription required - Subscription is required.

News:

NewsDate
Torex Reports Encouraging Results From Drilling at EPO March 23, 2023
Torex Gold Reports Results From Drilling at Media Luna March 8, 2023
Torex Gold Provides Inaugural Quarterly Update on Media Luna Project February 9, 2023

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