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Namibia
Lofdal Project

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 Location:
27 km NW from Khorixas, Namibia

  Project Contacts:
8 Brandberg Street
Windhoek
Namibia
Phone  ...  Subscription required
Fax+264 61 225304
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • REE
Mining Method
  • Truck & Shovel / Loader
Mine Life16 years (as of Jan 1, 2022)
Lofdal is now a fully permitted project.


Owners

Source: p. 2
CompanyInterestOwnership
Namibia Critical Metals Inc. 95 % Indirect
The Lofdal property comprises exclusive prospecting license (EPL) 3400 and Mining License (ML) 200. The EPL and ML are held by Namibia Rare Earths (Pty) Ltd., a wholly owned subsidiary of Namibia Critical Metals Inc.

Namibia Critical Metals owns a 95% interest in the Lofdal project with the remaining 5% held for the benefit of historically disadvantaged Namibians. The terms of the JOGMEC joint venture agreement with the company stipulate that JOGMEC provides $3,000,000 in Term 1 and $7,000,000 in Term 2 to earn a 40% interest in the Lofdal project. Term 3 calls for a further C$10,000,000 of expenditures to earn an additional 10% interest. JOGMEC can also purchase another 1% for C$5,000,000. To date, JOGMEC, has approved funding Term 1 and 2 expenditures totaling C$8,875,000.

On August 16, 2022, Bannerman Energy Limited completed the transaction to acquire a 41.8% shareholding in Namibia Critical Metals Inc.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Hydrothermal
  • Intrusion related
  • Metamorphic hosted
  • Carbonatite hosted


Summary:

The Lofdal property is underlain by Paleoproterozoic metamorphic rocks of the Huab Metamorphic Complex, which outcrop as an inlier of the Congo Craton surrounded by stratified rocks of the Damaran Orogen.

Rare earth element mineralization in the Lofdal Carbonatite Complex is closely associated with the carbonatite dykes and related hydrothermal alteration. These occur within an area of more than 200 km2 .

Of particular significance is the frequent enrichment of heavy rare earths in the dykes and in structurally controlled hydrothermal alteration zones, which trend predominantly in NE - SW and NNE - SSW directions.

The REE mineralization in the Lofdal Carbonatite Complex is variable and includes both LREE and HREE enriched varieties that appear to have been introduced in separate mineralizing events.

Mineralization in Areas 4 and 2B is structurally controlled and hydrothermal in origin. The host structures are first- and perhaps second-order basement structures that were apparently reactivated more than once during the mineralizing event. Repeated movement promoted the introduction of several generations of hydrothermal fluids, which resulted in a complex series of overprinting alteration events. The mineralization is dominantly present in xenotime and is interpreted to be related to the waning stages of hydrothermal alteration related to carbonatite intrusion. The highest-grade mineralization does not occupy a consistent position ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The proposed mining method is conventional open pit mining. Mineralised rock and waste would be drilled, blasted, loaded by hydraulic shovels and hydraulic excavators into off-highway dump trucks, and hauled to the processing plant.

There are two primary Lofdal deposits currently under consideration. These are to be mined as open pits, with the normal sequence of drilling, blasting and hauling. Due to the nature of the deposit, the resultant pits are narrow and deep. Currently no backfilling is contemplated.

The proposed mining method is the development of a slot in front of the mineralised zone at each level. The centralised slot will enable waste mining on one side while mining mineralised material on the other side. This methodology will also facilitate separating mineralised material from waste material.

The target ROM feed to the processing plant is 2 000 000 tonnes/annum. The plant feed is mineralised material with a TREO >= 0.1%. In the current schedule the production ramps up to this over 4 years.

Mineralised material with TREO >=0.05% and <0.1% is sent to a stockpile so it may be possible to process at a later stage if economics allow.

The combined Life of Mine of the two pits is 16 years.

An assumed maximum pit slope angle of 63° is applied to all slopes other than the low wall side, which follows the orebody and is at approximately 50°. With the inclusion of the ramp system the overall highwall slop ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Total Rare Earth Oxides Concentrate kt 230
Dysprosium Oxide t  ......  Subscription required
Terbium Oxide t  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Daily processing 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 May 12, 2021:
Mineral Resource Estimates above 0.1% TREO cut-off grade.

CategoryTonnage CommodityGradeContained Metal
Measured & Indicated 44.77 Mt Total Rare Earth Oxides 0.172 % 76.95 kt
Measured & Indicated 44.77 Mt Light Rare Earth Oxides 0.082 %
Measured & Indicated 44.77 Mt Heavy Rare Earth Oxides 0.086 %
Measured & Indicated 44.77 Mt Dysprosium 0.0091 %
Inferred 8.67 Mt Total Rare Earth Oxides 0.172 % 14.92 kt
Inferred 8.67 Mt Light Rare Earth Oxides 0.09 %
Inferred 8.67 Mt Heavy Rare Earth Oxides 0.076 %
Inferred 8.67 Mt Dysprosium 0.0078 %

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs Total Rare Earth Oxides USD  ......  Subscription required&nbs
Assumed price Dysprosium USD  ......  Subscription required&nbs
Assumed price Terbium USD  ......  Subscription required&nbs
Assumed price Total Rare Earth Oxides USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t milled) USD 16.3 *
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/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
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Net 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 @ 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
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Pipelines
Source: Subscription required


Proposed Heavy Mobile Equipment as of October 3, 2022:
HME TypeModelSizeQuantityLeased or
Contractor
Dozer (crawler) 55 t ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
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....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
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....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Preliminary Economic Assessment 2022
Press Release 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
Preliminary Economic Assessment 2014
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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