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Mauritania
Tijirit Project

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 Location:
266 NE from Nouakchott, Mauritania

  Project Contacts:
1320 Graham Blvd. #132
Ville Mount Royal
Quebec, Canada
H3P 3C8
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life7.1 years (as of Jan 1, 2018)


Owners

Source: p. 1
CompanyInterestOwnership
Wafa Mining & Petroleum SA 10 % Indirect
Government of the Islamic Republic of Mauritania 15 % Indirect
Aya Gold & Silver Inc. 75 % Indirect
Société Tijirit Exploitation SA (Tirex S.A.) (operator) 100 % Direct
June 11, 2021 - Aya Gold & Silver Inc. (TSX: AYA) (“Aya” or the “Corporation”) is pleased to announce closing of the previously announced acquisition of Algold Resources Ltd.

Aya Gold & Silver Inc. controls 100% of Algold Resources Ltd and is the 75% owner-operator of Tijirit Gold Project, with the remaining 15% owned by the Government of Mauritania and 10% by Wafa Mining & Petroleum.

The Algold’s operating subsidiary is the Société Tijirit Exploitation SA (Tirex S.A.) (formerly known as Société Tijirit Recherché et Exploration SARL), incorporated to operate the Tijirit and East Tijirit licenses.

Contractors

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Deposit Type

  • Banded iron formation
  • Vein / narrow vein


Summary:

Tijirit project is located approximately 40 km southeast of the Tasiast gold deposit. The Tijirit mineralized zones are trending to the NNE and are rather sub-parallel to the Tasiast north-trending deposit. The style of gold mineralization varies on the Tijirit project; however, two major types have been identified as unique: Eleonore-type mineralization and BIFs type.

On Tijirit, gold mineralization is related to deformation zones affecting the iron formations, various metasedimentary sequences and intermediate and mafic metavolcanic and meta-igneous rocks. Gold is locally visible, mostly as native medium to small grain located in quartz ± carbonate veins and silicified zones within highly schistozed metabasites and locally associated with sulphides and metasediments or with quartz veins and altered zones near meta-igneous rocks.

The Tijirit mineralization can be classified according to the following:

Sophie I, II - gold is related to quartz-carbonate-sulfide veining located in altered, sheared and folded zone within or near contacts between BIF (iron formation), metabasic and metasedimentary sequences.

Sophie III - gold is located in the north limb of a regional fold in NE-trending sheared contact between metavolcanics and metasediments.

Lily - gold appear as fine grains located in widespread quartz-carbonate-sulfide veinlets associated to various zones, showing disseminated pyrrhotite and pyrite, alteration and ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method selected for the Project is a conventional truck and shovel, drill and blast quarry operation. The mineralised material and waste rock will be mined at 5 m high benches, drilled, blasted and loaded into rigid quarry haul trucks with hydraulic excavators.

The mine plan was established annually for the first four (4) years of production at a rate of 2,976 t/d, followed by a four (4) year period at 4,500 t/d. The annual production target will be 1,086,240 tonnes for Phase 1 and 1,642,500 tonnes for Phase 2. (with 138,805 tonnes in Year 8).

Seventeen (17) pits were designed for the Project resulting in just over 7 years of production between Phase 1 and Phase 2.


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold oz 104,500580,901
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Stripping / waste ratio 12.2 *
Waste tonnes, LOM 111,915 kt *
Ore tonnes mined, LOM 9,140 kt *
Total tonnes mined, LOM 121,055 kt *
Daily processing capacity 2,976 t *
Tonnes processed, LOM 9,140 kt *
Annual processing capacity 1,100 kt *
Annual ore mining rate 1,018 kt *
* According to 2018 study.

Reserves at May 12, 2021:
The mineral resources are presented at a 0.4 g/t Au cut-off grade in pits and 1.7 g/t Au cut-off grade under the pits, except for Eleonore, where a global cut-off of 1.5 g/t Au was applied

CategoryTonnage CommodityGradeContained Metal
Measured 668,000 t Gold 2.53 g/t 54,500 oz
Indicated 3,485,000 t Gold 2.13 g/t 238,100 oz
Measured & Indicated 4,154,000 t Gold 2.19 g/t 292,600 oz
Inferred 10,160,000 t Gold 1.63 g/t 533,200 oz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Gold USD 591.95 / oz *  
Assumed price Gold USD 1,250 / oz *  
* According to 2018 study / presentation.

Operating Costs:

Units2018
OP mining costs ($/t milled) USD 18.8 *
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2018 study.
Subscription required - Subscription is required.

2018 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 126.5
G&A costs $M USD 45.8
Total OpEx $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of July 4, 2018:
HME TypeModelSizeQuantity
Backhoe ....................... Subscription required ....................... Subscription required
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 4, 2018
....................... Subscription required ....................... Subscription required Subscription required Jul 4, 2018
....................... Subscription required ....................... Subscription required Subscription required Jul 4, 2018
....................... Subscription required ....................... Subscription required Subscription required Nov 15, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
Preliminary Economic Assessment 2018
Press Release 2018
Technical Report 2018
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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