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Senegal
Sabodala-Massawa Mine (Sabodala-Massawa expansion Project)

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 Location:
68 km N from Kedougou, Senegal

  Regional Office:
Route du Lycée Technique
Abidjan
Cote d'Ivoire
08 BP 872
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life17 years (as of Jan 1, 2022)
Sabodala-Massawa is the largest producing gold mine in Senegal and has been in operation for over a decade.

Construction of the Sabodala-Massawa BIOX Plant Expansion project was launched in April 2022, and on schedule for completion in H1-2024.


Owners

Source: p. 42
CompanyInterestOwnership
Government of Senegal 10 % Indirect
Endeavour Mining plc 90 % Indirect
Sabodala Gold Operations S.A. (operator) 100 % Direct
The Sabodala-Massawa Mine initially consisted of two mining licenses – the Sabodala exploitation permit and the Massawa exploitation permit.

A merger of SGO and Massawa took place effective January 1, 2022, leaving SGO as the only remaining operating entity. Endeavour, indirectly through its subsidiaries, holds a 90% stake in the merged Sabodala Gold Operations (SGO). The Senegalese Government has a 10% free carried interest in SGO.

Contractors

Subscription required - Subscription is required.


Deposit Type

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


Summary:

The deposits at the Sabodala-Massawa Complex are classified as orogenic gold deposits. At the Sabodala-Massawa Complex, all of the defined mineral resources are within the Sabodala and Massawa exploitation permit areas. The permit areas are transected by two prominent, first order shear zones, the Main Transcurrent Shear Zone (“MTZ”) and the Sabodala-Sofia Zone (“SSZ”) both trending north-northeast. Existing deposits and exploration targets are closely associated with these first order structures. Within the Sabodala licence, lithologies generally trend north-northeast to northeast with steep dips. The sequence is dominated by mafic volcanics, with intercalated interflow sediment horizons. On the Massawa licence, the stratigraphy is dominated by a package of volcaniclastic rocks to the west, and a package of greywackes to the east. Bedding typically strikes to the north-northeast with a steep dip of between 75° to 80° toward the west. Several igneous rocks including sills of gabbro, felsic intrusions, and feldspar (and/or quartzfeldspar) porphyries intrude this dominantly clastic sequence. The mineralisation is often associated with quartz shear veins, extension vein arrays, shear zones, and disseminated sulphides. Mineralisation is typically associated with greenschist metamorphic grade and vein dominated styles. The typical mineralogy of the gold-bearing mineralisation is quartz-carbonate ± albite ± K-feldspar veins with up to 10% (pyrite ± arsenopyrite ± base metals) ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method employed across the Project Area is conventional open pit, excavator and truck operation, with the production unit operations (drilling, blasting, loading, hauling and dumping) carried out by mixed owner-contractor mining personnel and equipment. Load and haul activities are owner operated; ore is/will be transported from the various pits to the SCPF RoM pads, by Transport Dieye; blasting is carried out by Orica; production drilling is carried out by SGO; grade control drilling activities are performed by FTE.

In FY-2023, ore will be sourced primarily from the Sabodala and Bambaraya pits with additional higher grade non-refractory ore expected to be sourced from the Massawa Central Zone and Massawa North Zone pits.

The capacity of the mining fleet owned by SGO and other service providers meets the earthmoving requirements of the mining schedule, as per the LoM plan and budget plan for 2022. The in-pit material excavation is conducted by a fleet of twelve Komatsu excavators (consisting of five 250 t PC3000, four 100 t PC1250 and four PC450).

Material haulage from the pits is undertaken by twenty-four Komatsu HD785-7 rear dump trucks, and nine Caterpillar 777E rear dump trucks. Key items of the ancillary fleet are the eleven Komatsu D375A track dozers, two Komatsu WD600 wheel dozers, one Komatsu D155AX track dozer, five Caterpillar D10T2 dozers, seven GD825A motor graders, and four Komatsu HD265 water trucks.

Ore min ........


Crushing and Grinding
Source: Source p.459-460
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2023202220212020201920182017
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required245233
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Annual processing capacity  ......  Subscription required  ......  Subscription required4 Mt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required18.4 16.8
Ore tonnes mined  ......  Subscription required  ......  Subscription required5,286 kt2,909 kt1,921 kt2,101 kt
Waste  ......  Subscription required  ......  Subscription required28,666 kt30,977 kt35,347 kt35,385 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required37,268 kt37,486 kt
Tonnes processed  ......  Subscription required  ......  Subscription required4,122 kt4,161 kt4,069 kt4,221 kt
Subscription required - Subscription is required.

Reserves at December 31, 2022:
Cut-off grades for the resources are as follows: open pit from 0.31g/t to 1.00g/t Au. Underground from 2.00g/t to 2.84g/t Au.

Cut-off grades for the reserves are as follows - Sabodala Open Pit WOLP: oxide: 0.60/t Au to 0.70g/t Au; transitional: 0.60g/t Au to 0.80g/t Au; fresh: 0.60g/t Au to 0.70g/t Au.

Cut-off grades for the reserves are as follows - Sabodala Open Pit SLP: Oxide: 0.90g/t Au; Transitional 0.90g/t for CZ; RedTran: 1.20g/t Au for CZ 1.40g/t Au for NZ and 1.0g/t Au for Delya; fresh cut-off is 1.30g/t Au.

Cut-off grades for the reserves are as follows - Sabodala UG: 2.82g/t Au.

CategoryTonnage CommodityGradeContained Metal
Proven 19.2 Mt Gold 1.14 g/t 705 koz
Probable 43.6 Mt Gold 2.41 g/t 3,381 koz
Proven & Probable 62.8 Mt Gold 2.02 g/t 4,086 koz
Measured 22.3 Mt Gold 1.18 g/t 843 koz
Indicated 83.8 Mt Gold 2.04 g/t 5,490 koz
Measured & Indicated 106.1 Mt Gold 1.86 g/t 6,333 koz
Inferred 19.9 Mt Gold 2.16 g/t 1,380 koz

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Total cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 660 / oz   721 / oz  
Total cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 1,006 / oz   1,024 / oz  
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units202220212018201720162015
OP mining costs ($/t mined) USD 2.22  2.52  2.57  2.36  2.33  2.42  
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required
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Financials:

Units202320222021201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required 9.6   10.7   33  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required 18.8   19.3  
Revenue M USD  ......  Subscription required  ......  Subscription required 312.6   291.7   268.8  
Operating Income M USD  ......  Subscription required  ......  Subscription required
Gross profit M USD 82.1   69.6   87.3  
Pre-tax Income M USD 36.8   37   51.2  
After-tax Income M USD 13.5   34.5   27.9  
EBITDA M USD  ......  Subscription required 111.9   95.3   99.2  
Operating Cash Flow M USD 92.1   71.4   44.7  
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Pipelines and Water Supply
Source: Subscription required

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Heavy Mobile Equipment:
HME TypeModelSizeQuantityRef. Date
Dozer (crawler) ....................... Subscription required ....................... Subscription required Sep 30, 2022
Dozer (crawler) ....................... Subscription required ....................... Subscription required Sep 30, 2022
Dozer (crawler) ....................... Subscription required ....................... Subscription required Sep 30, 2022
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Sep 30, 2022
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2021
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2021
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2021
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2021
Excavator ....................... Subscription required 100 t Dec 31, 2021
Excavator ....................... Subscription required 100 t ....................... Subscription required Dec 31, 2022
Grader ....................... Subscription required ....................... Subscription required Sep 30, 2022
Loader ....................... Subscription required ....................... Subscription required Sep 30, 2022
Shovel (hydraulic) ....................... Subscription required 250 t ....................... Subscription required Dec 31, 2022
Truck (dump) ....................... Subscription required 95 t ....................... Subscription required Dec 31, 2022
Truck (dump) ....................... Subscription required 84 t ....................... Subscription required Dec 31, 2022
Truck (water) ....................... Subscription required 20000 l ....................... Subscription required Sep 30, 2022
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 15, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 15, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 15, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 15, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Annual Information Form 2022
Annual Report 2022
Corporate Presentation 2022
Financial Review 2022
Management Discussion & Analysis 2022
Other 2022
Press Release 2022
Sustainability Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Information Form 2018
Corporate Presentation 2018
Management Discussion & Analysis 2018
Press Release 2018
Press Release 2018
Management Discussion & Analysis 2017
Technical Report 2017
Annual Report 2016
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