Mining Intelligence and News
Greenland

Citronen Project

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Overview

Mine TypeOpen Pit & Underground
StagePermitting
Commodities
  • Zinc
  • Lead
Mining Method
  • Truck & Shovel / Loader
  • Cut & Fill
Backfill type ... Lock
Project Timeline... Lock
Mine Life... Lock
SnapshotThe Citronen Zn-Pb Project is one of the world’s largest undeveloped zinc deposits. Ironbark Zinc Limited (the Company) holds a granted 30-year Mining Permit over the deposit.

Updated Bankable Feasibility Study for the Citronen Project was completed in 2021. Existing ore reserves enable an intial 20-year mine life with substantial further exploration upside potential.

During 2024, following negotiations with the Greenland Government the Company was successful in securing extensions to key dates pertaining to the financing & commencement of production at Citronen. These extensions, until the end of 2024 and 2026 respectively, are the maximum allowable extensions able to be afforded to Ironbark under its current licence terms.
Latest NewsIronbark Zinc to Divest Citronen Project     December 17, 2024

Owners

SourceSource
CompanyInterestOwnership
Skylark Minerals Ltd. 100 % Indirect
Ironbark A/S 100 % Direct
Skylark Minerals Ltd. (formerly Ironbark Zinc Limited) owns 100% of the Citronen Zn-Pb Project through its wholly owned subsidiary, Ironbark A/S.

On December 17, 2024, Skylark Minerals Ltd. has entered into a binding agreement to divest 100% of its Citronen Zn-Pb Project through the sale of its wholly owned subsidiary, Ironbark A/S, to Almeera Ventures Limited based in Dubai.

Contractors

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Deposit type

  • SEDEX

Summary:

The Citronen Deposit is interpreted as belonging to the SEDEX deposit class, forming syn-depositionally with sedimentation.

The Citronen Fjord deposit lies within the Palaeozoic Franklinian Basin, a sedimentary basin which extends across Northern Greenland and into Canada. The deposit lies within Ordovician deep water argillaceous rocks, interbedded with carbonate debris flows sourced from the carbonate platform to the south. Base metal mineralisation at Citronen is primarily contained within the Amundsen Land Group mudstones. Three main stratigraphic horizons of mineralisation were identified by Platinova A/S. Known sulphide and zinc mineralisation occurs over an area of 12km in strike (identified to date). The main sulphides present are pyrite, sphalerite and galena. Three types of sulphide mineralisation are present: mound-like masses, interbedded sulphides that form laminae and beds within the mudstones and cross-cutting epigenetic mineralisation that is primarily found in the carbonate debris flows.

Dimensions
The area containing the Citronen Resource stretches 6.5km from the north-west corner of the Esrum Zone to the south-east corner of the Discovery Zone. The deposit is exposed at surface in the Discovery Zone and reaches a depth of 575m below surface in the Esrum Zone. The deposit is open along strike and at depth.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityProductUnitsAvg. AnnualLOM
Zinc Metal in concentrate M lbs 2875,672
Lead Metal in concentrate kt 152
Zinc Concentrate kt 300

Operational metrics

Metrics
Reject, LOM  ....  Subscribe
Annual ore mining rate  ....  Subscribe
Annual milling rate  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
* According to 2021 study.

Production Costs

CommodityUnitsAverage
C2 total cash costs Zinc USD  ....  Subscribe
Assumed price Lead USD  ....  Subscribe
Assumed price Zinc USD  ....  Subscribe
* According to 2021 study / presentation.

Operating Costs

CurrencyAverage
OP mining costs ($/t milled) USD  ....  Subscribe
UG mining costs ($/t milled) USD  ....  Subscribe
Processing costs ($/t milled) USD  ....  Subscribe
G&A ($/t milled) USD  ....  Subscribe
* According to 2021 study.

Project Costs

MetricsUnitsLOM Total
Sustaining CapEx $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
OP OpEx $M USD  ......  Subscribe
UG OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 971
G&A costs $M USD 298
Net revenue (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax NPV @ 8% $M USD  ......  Subscribe
After-tax IRR, %  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 19, 2021
....................... Subscription required ....................... Subscription required ........... Subscription required ........... Subscription required Dec 17, 2024

EmployeesYear
...... Subscription required 2017

Aerial view:

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