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Morocco
Zgounder Expansion Project (Zgounder)

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 Location:
98 Km S from Marrakesh, Morocco

  Project Contacts:
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

StageConstruction
Mine TypeOpen Pit & Underground
Commodities
  • Silver
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Transverse stoping
  • Longitudinal stoping
  • Cemented backfill
  • 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.

Expanded operations will combine:
- 2,000 tpd flotation-CIP plant &
- 700 tpd flotation-cyanidation plant
- Open-pit & UG operations.
Latest NewsAya Gold & Silver - Zgounder Mine Expansion Progressing to Plan     February 22, 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

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein
  • Epithermal
  • Sediment-hosted


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).

Mineralisation
The Zgounder silver mineralisation occurs at the top of the Brown Formation (sandstone), predominantly along the contact and within the dolerite sill. The economic silver concentrations at Zgounder are present mainly as vertical bodies, complex clusters, shear zones, and veinlets, and at the intersection of the E-W and N-S fractures, though preferentially at the contact zones between schist and dolerite (Petruk, 1975; Popov et al., 1989). Native silver occurs in complex sets of microfractures, mainly at intersections with sulphide veinlets, and locally accompanied by chloriterich alteration. Small Ag grains (average size = 50 µm) occur in corrosion zones of early sulphides or disseminated within the schist and dolerite.

According to Marcoux et al. (2015), the paragenetic sequence shows two successive stages of mineralisation: 1) an early Fe–As stage and 2) an Ag-bearing polyme ........


Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Transverse stoping
  • Longitudinal stoping
  • Cemented backfill
  • Dry waste backfill


Summary:

The purpose of the Feasibility Study (FS) is to review and define the optimum configuration for the mine and processing arrangement for the Zgounder Expansion Project to 2,700 t/d.

The Zgounder Project will be mined in a combination of open pit mining, reclamation of historical tailings, and underground mining.

The mining method selected for the open pit portion of the Zgounder Project is a conventional open pit, drill & blast, truck and shovel operation. The open pit consists of a single pit.

The tailings reclamation will be mined using a loader and truck operation; no drilling and blasting will be required.

The underground mine will be mined using a combination of drift-and-fill mining and long-hole stoping.

For both the open pit and the tailings reclamation, the ore will be transported by truck to the ore pass, where the material will be brought underground to be processed with the underground ore. Waste material will be deposited in a waste stockpile located near the pit. Ore will also be stockpiled in low-grade and high-grade stockpiles near the pit for future rehandling and processing.

All mining open pit and historical tailings reclamation will be undertaken by mining contractors, who will be responsible for all drilling, blasting, loading, transportation for both the ore and waste material, as well as any pre-split drilling requirements. The development of the underground mine will be undertaken by mini ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsLOM
Silver koz 64,729
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Daily ore mining rate  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Daily processing capacity  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

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 9,548 koz
Measured & Indicated 4,893 kt Silver 306 g/t 96,052 koz
Inferred 542 kt Silver 367 g/t 6,395 koz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Silver USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Silver USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
OP mining costs ($/t milled) USD 2.88 *
UG mining costs ($/t milled) USD  ......  Subscription required
Combined mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
UG OpEx $M USD  ......  Subscription required
OP/UG OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 163.5
Transportation (haulage) costs $M USD 9.7
G&A costs $M USD 51.5
Total OpEx $M USD  ......  Subscription required
Mining Taxes $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of December 31, 2021:
HME TypeSizeQuantityLeased or
Contractor
Drill 110 kW ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 15, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Corporate Presentation 2022
Press Release 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
Subscription required - Subscription is required.

News:

NewsDate
Aya Gold & Silver - Zgounder Mine Expansion Progressing to Plan February 22, 2023
Aya Gold & Silver Provides Production Guidance and Outlook for 2023 February 9, 2023
Aya Gold & Silver Closes US$100 Million Project Financing Facility for Zgounder Silver Mine Expansion February 7, 2023

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