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Morocco
Zgounder Mine (Zgounder Expansion Project)

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 Location:
98 km S from Marrakesh, Morocco

  Address:
Rue de l’Epargne, Numéro 3, Étage 1
Casablanca
Morocco
Phone  ...  Subscription required
Fax05 22 94 90 09
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Silver
Mining Method
  • Cut & Fill
  • Longhole stoping
  • Dry waste backfill
Production Start...
Mine Life11 years (as of Jan 1, 2021)
On February 22, 2022 the Aya Gold & Silver announced positive results from its Feasibility Study to expand the Zgounder Silver Mine located in the Kingdom of Morocco from 700 tpd to 2,700 tpd capacity.

First silver pour planned in Q1-2024.
Latest NewsAya Gold & Silver Extends High-Grade Silver Mineralization at Depth at Zgounder     February 28, 2023


Owners

Source:
CompanyInterestOwnership
Aya Gold & Silver Inc. 100 % Indirect
Zgounder Millenium Silver Mining S.A. (operator) 100 % Direct
Aya Gold & Silver Inc. has acquired 100% ownership of the Zgounder project.

On December 14, 2022, Aya Gold & Silver Inc. closed its deal with the National Office of Hydrocarbons and Mines ("ONHYM") to acquire the ONHYM's 15% interest in the Zgounder project and five adjacent permits to the Zgounder Silver Mine for a total consideration of 67 million dirhams (approximately US$6.5 million). ONHYM will maintain its 3% royalty on the Zgounder property, and a 3% royalty is granted on production coming from the new permits.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Sediment-hosted
  • Epithermal


Summary:

Zgounder is a Neoproterozoic age, sedimentary rock-hosted, low-sulphidation epithermal silver deposit. The Zgounder Silver Deposit is cross-cut by fractures of variable orientations. There are at least four (4) fracture systems: 1. Late sub-vertical E-W fractures and shear zones; 2. N-S fractures/faults dipping steeply to the east; 3. NNE-NNW-oriented system dipping 60° at a strike of 75°E; and 4. A sub-horizontal system of fractures oriented NNE and NNW, which displaced the Brown Formation to the north with depth (Bounajma, 2002). The Zgounder Deposit formed during two (2) distinct stages of hydrothermal fluid alteration and mineralisation (Essaraj et al., 1998, 2016, 2017): -Deposition of quartz with minor biotite and As-Co minerals from a variety of H2O-CO2-CH4 rich fluids in equilibrium with the metasedimentary host rocks. The fluids were at high temperatures (400ºC to 450°C) over a wide range of pressures, during the early brittle deformation of the Brown Formation, following emplacement of the Askaoun Granite; and -The main phase of (Cu-Zn)-Ag (Hg) mineral deposition. Silver deposition occurred following crystallization of quartz-sphalerite-chalcopyrite veins, but the Cu-Zn and Ag(Hg) mineralising fluids were NaCl-CaCl2 brines at minimum temperatures of about 160°C to 200°C, during a period of hydrothermal albitization. Mineralisation The Zgounder silver mineralisation occurs at the top of the Brown Formation (sandstone), predominantly along the contact and within t ........


Mining Methods

  • Cut & Fill
  • Longhole stoping
  • Dry waste backfill


Summary:

The Zgounder deposit is located in competent rock and has a steep overall dip. The historic mining method used at Zgounder is shrinkage stoping. To increase selectivity and ore recovery the cut and fill method is under development for new mining stopes. The main ramp is at the 2,000 m level and connects all existing levels to the east above the 2,000 m up to 2,100 m level. An access ramp from the 2000 level to the 1975 lever was also built. In the future, another access ramp to the 1,800 m level below the 2,000 m level will be built to reach the developed levels down to 1,925 m and the future levels down to 1,800 m. This will facilitate the development and the transportation of backfill when required above 2,100 m elevation.

Aya significantly changed its mining operations at Zgounder in 2021 by moving from a shrinkagestope mining method to a cut-and-fill method. Furthermore, increased mechanization began in 2021 with the introduction of the mine’s first jumbo.

As the mine has previously been in production, few new developments are required above 2,000 m. The total of additional development required is estimated at 20% of mineralized material tonnage with an average of 3.0m linear meters per working day. There is a provision in the sustaining capital for an average of 6.0m linear per working day, including the ramp (3.4m x 4m section), for a total of 4,691m for the major access and a 315m internal shaft for the life of mine (“LOM”). According to the histo ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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^ Guidance / Forecast.

Production:
On March 25, 2020, the Corporation announced the completion of works to expand the total nameplate production capacity from 500 tpd to 700 tpd at its Zgounder Silver Mine.

CommodityProductUnits2022202120202019201820172016
Silver Total koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required258517521
Silver Metal in doré koz  ......  Subscription required  ......  Subscription required  ......  Subscription required816
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Operational Metrics:

Metrics202220212020201920182017
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required100,667 t39,764 t53,547 t
Daily processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required500 t187 t
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required158,408 t59,232 t
^ Guidance / Forecast.
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Reserves at December 31, 2021:
Mineral Resources:
- The constraining pit optimization parameters were US$15/t of mineralised material (including waste mining) and 50º pit slopes with a 65 g/t Ag cut-off;
- The out-of-pit Mineral Resource grade blocks were quantified above the 75 g/t Ag cut-of;
- Mineral Resource grade blocks were quantified above the 50 g/t Ag cut-off.

CategoryTonnage CommodityGradeContained Metal
Proven 3.1 Mt Silver 288 g/t 28.7 M oz
Probable 5.5 Mt Silver 239 g/t 42.1 M oz
Proven & Probable 8.6 Mt Silver 257 g/t 70.9 M oz
Measured 3,511 kt Silver 347 g/t 39,183 koz
Indicated 6,254 kt Silver 283 g/t 56,869 koz
Measured & Indicated 9,765 kt Silver 306 g/t 96,052 koz
Inferred 542 kt Silver 367 g/t 6,395 koz

Commodity Production Costs:

CommodityUnits20222021202020192018
Cash costs (sold) Silver USD  ......  Subscription required&nbs  ......  Subscription required  ......  Subscription required  ......  Subscription required
Cash costs Silver USD  ......  Subscription required 9.29 / oz  
^ Guidance / Forecast.
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Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required 6.3  CAD 11.1  CAD 10.8  CAD
Operating Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required
After-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Cash Flow M  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required



Heavy Mobile Equipment:
HME TypeSizeQuantityLeased or
Contractor
Ref. Date
Scissor Lift ....................... Subscription required Aug 12, 2022
Scoop Tram ....................... Subscription required Aug 12, 2022
Scoop Tram 3 t ....................... Subscription required Leased Mar 16, 2018
Truck (dump) ....................... Subscription required Aug 12, 2022
Truck (underground) 4.5 cu. m ....................... Subscription required Leased Mar 16, 2018
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2021
....................... Subscription required ....................... Subscription required Subscription required Jun 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 30, 2021
....................... Subscription required ....................... Subscription required Subscription required Jun 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 14, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020

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 2019
................................... Subscription required 2019
Management Discussion & Analysis 2018
Preliminary Economic Assessment 2018
Management Discussion & Analysis 2017
Management Discussion & Analysis 2016
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News:

NewsDate
Aya Gold & Silver Extends High-Grade Silver Mineralization at Depth at Zgounder February 28, 2023
Aya Gold & Silver Signs Renewable Power Purchase Agreement with Energie Éolienne du Maroc February 16, 2023

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