• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Niger
DASA Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
95 km N from Agadez, Niger

  Project Contacts:
Avenue du général de Gaule
Niamey
Niger
Phone  ...  Subscription required
Fax011-227-20-37-00-14
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Niger
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Uranium
Mining Method
  • Longhole open stoping
  • Transverse open stoping
  • Cemented backfill
Production Start...
Mine Life12 years (as of Jan 1, 2021)
The Dasa project is a large, high-grade uranium deposit that lies within the Adrar Emoles III license area, 105km south of the established uranium mining town of Arlit, in the Republic of Niger.
Latest NewsGlobal Atomic Provides Outlook for 2023 and Updates The Phase 1 Feasibility Study for the Dasa Project     January 9, 2023


Owners

Source:
CompanyInterestOwnership
Government of Niger 20 % Indirect
Global Atomic Corp. 80 % Indirect
Société Minière DASA S.A. (SOMIDA) (operator) 100 % Direct
On August 11, 2022, Global Atomic Corporation announced the incorporation of Société Minière DASA S.A. or "SOMIDA", the Company's Niger mining subsidiary under which the Dasa Uranium Project will operate.
Share ownership of SOMIDA will be 80% Global Atomic and 20% Government of Niger, including the 10% carried interest provided under the Niger Mining Code.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sandstone hosted


Summary:

The Dasa Project is located in north-eastern Niger inside the Tim Mersoï sedimentary basin. The basin covers an area of some 114,000 km2 and is part of the much larger Iullemeden Basin (Palaeozoic-Tertiary) that stretches into Mali, Algeria, Benin and Nigeria.

All known uranium occurrences and deposits in Niger are all classified to belong to the sedimentary tabular, paleo channel and roll-front or sandstone types.

In the Dasa deposit, characteristics more consistent with the paleo channel tabular type seem to prevail.

The uranium in many of the deposits of the Tim Mersoï Basin is oxidized. Among the primary tetravalent minerals, coffinite is dominant and accompanied by pitchblende and silico titanates of uranium. Uranium hexavalent minerals such as uranophane and meta-tyuyamunite are present in the Imouraren and TGT-Geleli deposits.

The gangue is composed of quartz, feldspar, analcime and often illite, kaolinite and chlorite; with accessories such as some zircon, ilmenite, magnetite, tourmaline, garnet, anatase and leucoxene.

The uranium minerals are frequently associated with copper minerals (native copper, chalcocite, chalcopyrite, malachite, chrysocolla) and also with iron minerals such as pyrite, hematite and goethite. Organic plant materials are generally plentiful in un-oxidized facies of greyish-greenish colour.

The Dasa deposit site corresponds to a major structural intersection of the Adrar-Emoles fl ........


Mining Methods

  • Longhole open stoping
  • Transverse open stoping
  • Cemented backfill


Summary:

The Feasibility Study presented in this report presents an optimized mine plan and recovery process for the Dasa deposit based on the extraction 4.254 million tonnes of mineralised material from a sub-vertical section of the deposit on the flank of the graben, from an average depth of 300m below surface. The mine is designed to produce 1000 tonnes per day of Run of Mine (RoM) feed to the plant.

The selected mining method for the Dasa orebody is a transverse longhole open stoping (LHOS) method with a cemented hydraulic fill.

Access to the underground workings will be via a single access decline developed from surface. The decline system will be located in the footwall of the orebody.

Access to the orebody will be established at selected elevations by developing a crosscut from the decline towards the orebody, in a direction approximately perpendicular to the strike of the orebody. A footwall drive will be developed approximately 20m from the orebody, along strike. The stope access crosscuts spaced at 16.5 metre centres will be developed from the footwall drive across the orebody.

The level spacing is nominally 22.5 vertical metres. The general sequence of stoping will be bottom-up. Mining will commence on the lowest sublevel level in a mining block, progressing upwards towards a sill pillar, separating the mining block from the one above. Stopes will be filled with cemented hydraulic fill (CHF). The use of the cemented backfill will ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:
The initial Phase 1 production is from the very high-grade parts of the Flank Zone grading 6,464 ppm over the first 7 years to produce an average 4.8 million pounds per annum U3O8. In the latter 5 years, production grades are 3,300 ppm to result in an average annual production of 2.3 million pounds per annum U3O8.

CommodityUnitsAvg. AnnualLOM
Uranium (U3O8) M lbs 4.845
All production numbers are expressed as U3O8.

Operational Metrics:

Metrics
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 processing capacity  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

Reserves at November 15, 2021:
A cut-off grade of 1,200 ppm eU3O8 has been applied for underground resources.
A cut-off grade of 320 ppm eU3O8 has been applied for open pit resources.

CategoryTonnage CommodityGradeContained Metal
Probable 4.1 Mt U3O8 5267 ppm 47.2 M lbs
Indicated 26.3 Mt U3O8 1752 ppm 101.6 M lbs
Inferred 22.31 Mt U3O8 1781 ppm 87.6 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs U3O8 USD  ......  Subscription required&nbs
Total cash costs U3O8 USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) U3O8 USD  ......  Subscription required&nbs
Assumed price U3O8 USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
UG mining costs ($/t milled) USD 65.9 *
Processing costs ($/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
UG OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 272.9
G&A costs $M USD 157.4
Total OpEx $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Pipelines
TypeMaterialDiameterLengthDescription


Proposed Heavy Mobile Equipment as of November 15, 2021:
HME TypeModelSizeQuantity
Bolter ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 15, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 15, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Feasibility Study Report 2023
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
Technical Report 2017
Subscription required - Subscription is required.

News:

NewsDate
Global Atomic Provides Outlook for 2023 and Updates The Phase 1 Feasibility Study for the Dasa Project January 9, 2023

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.