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Czech Republic
Cinovec Project

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 Location:
6 km N from Dubi, Czech Republic

  Project Contacts:
Školní 299, Mstišov
Dubí
Czech Republic
417 03
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  • Overview
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Overview

StagePermitting
Mine TypeUnderground
Commodities
  • Lithium
  • Tin
  • Tungsten
  • Potash
Mining Method
  • Longhole open stoping
  • Paste backfill
Production Start...
Mine Life25 years (as of Jan 1, 2022)
Cinovec Project is the largest hard rock lithium deposit in Europe, the fourth largest non-brine deposit in the world and a globally significant tin resource.

Project fully funded to Final Investment Decision (FID).

Environment Impact Assessment for the mining part of the project submitted. Usti region (Czech Republic) approved the start of regional rezoning process.


Owners

Source: p. 26
CompanyInterestOwnership
European Metals Holdings Ltd. 49 % Indirect
Severoceské doly a.s. (SDAS) 51 % Indirect
Geomet s.r.o. (operator) 100 % Direct
The operator of the project is Geomet s.r.o controls the mineral exploration licenses awarded by the Czech State over the Cinovec Lithium/Tin Project. Geomet s.r.o is owned 49% by European Metals and 51% by CEZ a.s. through its wholly owned subsidiary, SDAS.

Contractors

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Deposit Type

  • Greisen hosted
  • Vein / narrow vein
  • Intrusion related


Summary:

Cinovec is a granite-hosted tintungsten-lithium deposit.

Late Variscan age, post-orogenic granite intrusion tin and tungsten occur in oxide minerals (cassiterite and wolframite). Lithium occurs in zinnwaldite, a Li-rich muscovite.

Mineralization in a small granite cupola. Vein and greisen type. Alteration is greisenisation, silicification.

The Cinovec Deposit strikes northsouth, is elongated, and dips gently south parallel to the upper granite contact. The surface projection of mineralization is about 1km long and 900m wide.

Mineralization extends from about 200m to 500m below surface.

Country rocks in the Cinovec area comprise Proterozoic metamorphic complex muscovite-biotite orthogneiss and paragneiss, Lower Palaeozoic phyllite and epiamphibolite and partly migmatised muscovite-biotite paragneiss. These sequences are overlain and cut by the Teplice Rhyolite, composed of extrusive and partially intrusive rhyolite, dacite and ignimbrite and associated tuff with arkosic and Mid-Carboniferous coal interbeds. A thick north-south trending dyke of syenogranite porphyry up to 2km wide intrudes along or near the contact between the eastern gneisses and the Teplice Rhyolite; smaller dykes and masses are found elsewhere within the Teplice Rhyolite and basement rocks.

Cinovec is a greisen deposit.

The Cinovec tin-tungsten-lithium deposit is intimately associated with the cupola of the CinovecZinnwald granite, ........


Mining Methods

  • Longhole open stoping
  • Paste backfill


Summary:

Around 2.25 million tonnes of ore per annum is mined and crushed in the underground mine prior to being conveyed 1,167m to the mine portal and stacked on Comminution Plant stockpile (30 kt live capacity), providing a buffer and surge capacity between the underground activities and the processing plants.

The 2022 updated Preliminary Feasibility Study establishes that it is feasible and economic to mine using long hole open stoping with paste backfill.

The mine will be accessed by a twin decline system. A decline conveyor will be installed from the underground primary crusher, on 540masl elevation, to surface. The second decline, in parallel with and the same length as the first, will be used as a service decline for mineworkers, material and as an intake airway. A provision for a second crushing station servicing the northern zones has also been made.

Support requirements for non-stoping areas including the main decline, footwall drives, crosscuts and passing bays remain the same.

Evaluation of regional ground conditions, hydraulic radii, stoping dimensions and pillar requirements suggested that rib, sill and potentially regional pillar requirements can be significantly reduced through the introduction of backfill.

Geotechnical assessment suggested that the introduction of a typical paste backfill could eliminate rib pillars and reduce the thickness of sill pillars between sublevels to 4m, effectively allowing insertion o ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. Annual
Lithium t 29,386
All production numbers are expressed as hydroxide.

Operational Metrics:

Metrics
Ore tonnes mined, LOM  ......  Subscription required
Annual production capacity  ......  Subscription required
Annual processing capacity  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at September 20, 2021:
Cut-off 0.1% Li (0.2153% Li2O)

CategoryTonnage CommodityGradeContained Metal
Measured 53.3 Mt Lithium 0.22 %
Measured 53.3 Mt Tin 0.08 %
Measured 53.3 Mt Tungsten 0.02 %
Measured 53.3 Mt Li2O 0.48 %
Measured 53.3 Mt LCE 0.64 Mt
Indicated 360.2 Mt Lithium 0.2 %
Indicated 360.2 Mt Tin 0.05 %
Indicated 360.2 Mt Tungsten 0.02 %
Indicated 360.2 Mt Li2O 0.44 %
Indicated 360.2 Mt LCE 3.88 Mt
Measured & Indicated 413.4 Mt Lithium 0.21 %
Measured & Indicated 413.4 Mt Tin 0.05 %
Measured & Indicated 413.4 Mt Tungsten 0.02 %
Measured & Indicated 413.4 Mt Li2O 0.44 %
Measured & Indicated 413.4 Mt LCE 4.51 Mt
Inferred 294.7 Mt Lithium 0.18 %
Inferred 294.7 Mt Tin 0.05 %
Inferred 294.7 Mt Tungsten 0.02 %
Inferred 294.7 Mt Li2O 0.39 %
Inferred 294.7 Mt LCE 2.87 Mt
Total Resource 708.2 Mt Lithium 0.2 %
Total Resource 708.2 Mt Tin 0.05 %
Total Resource 708.2 Mt Tungsten 0.02 %
Total Resource 708.2 Mt Li2O 0.42 %
Total Resource 708.2 Mt LCE 7.39 Mt

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) LiOH USD  ......  Subscription required&nbs
Cash costs LiOH USD  ......  Subscription required&nbs
Cash costs LiOH USD  ......  Subscription required *†
Assumed price LiOH USD  ......  Subscription required&nbs
Assumed price Tungsten USD  ......  Subscription required&nbs
Assumed price Tin USD  ......  Subscription required&nbs
Assumed price Potash USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2022
UG mining costs ($/t milled) USD 25.5 *
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Pipelines
Source: Subscription required


Proposed Heavy Mobile Equipment as of November 2, 2015:
HME TypeModelSize
Drill ....................... 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 TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Jan 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 17, 2019
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jan 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 20, 2023
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Corporate Presentation 2022
Corporate Presentation 2022
Pre-Feasibility Study Report 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Pre-Feasibility Study Report 2017
Other 2015
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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