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Malawi
Songwe Hill Project

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 Location:
85 km E from Blantyre, Malawi

  Project Contacts:
550 Burrard Street, Suite 2900
Vancouver
British Columbia, Canada
V6C 0A3
Phone  ...  Subscription required
WebsiteWeb
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • REE
Mine Life18 years (as of Jan 1, 2022)
Latest NewsMkango Receives ESHIA Approval for the Songwe Hill Rare Earths Project     January 26, 2023


Owners

Source:
CompanyInterestOwnership
Mkango Resources Ltd. 100 % Indirect
Nov. 01, 2021 (GLOBE NEWSWIRE) - Mkango Resources Ltd. is pleased to announce that it has received final approval from the TSX Venture Exchange in respect of the transaction announced on 5 August 2021 whereby Mkango has acquired the 49% interest of Talaxis Limited in Lancaster Exploration Limited, which owns the Songwe Hill Rare Earths Project in Malawi. As a result of the Acquisition, Mkango owns 100% of the shares of Lancaster.

Contractors

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Deposit Type

  • Carbonatite hosted
  • Intrusion related
  • Hydrothermal


Summary:

The target deposit type at Songwe Hill is a high-level, REE-enriched carbonatite intrusive complex. Carbonatites are traditionally defined as intrusive and extrusive igneous rocks that contain in excess of 50 % modal carbonate minerals (Woolley and Kempe, 1989). Mitchell (2005) defines carbonatites as “containing greater than an arbitrary 30 % by volume of primary igneous carbonate regardless of silica content”. Carbonatites can be named according to their carbonate mineralogy (e.g. calcite carbonatite, dolomite carbonatite and ankerite carbonatite), and chemically they can be divided into the three main varieties: calcio-, magnesio- and ferro-carbonatite.

Carbonatites usually occur as plugs or pipe-like bodies within zoned alkalic intrusive complexes, or as dykes, sills, breccias, and veins, and are almost exclusively associated with continental rift-related tectonic settings. They are characterised by an aureole of metasomatically altered country rocks which are usually referred to as fenites. Carbonatite magmas are typically low-viscosity and volatile-rich, and when intruded at a high crustal level, produce widespread intrusion- and explosion-breccias incorporating country rocks, carbonatites and associated fenites. Carbonatites are typically associated with silicate rocks of which the seven key carbonatite-silicate rock associations are, in decreasing order of abundance, 1) nephelinite-ijolite, 2) phonolite-feldspathoidal syenite, 3) trachyte-syenite, 4) melil ........


Mining Methods


Summary:

The mining method at Songwe Hill will be conventional open-pit mining, making use of relatively small-scale trucks and diesel-hydraulic excavators, selected to match the mining conditions and required production rates.

The pit design was structured around the strategy of Phase 1 accessing high-grade Type 1 ore for the first five years and stockpiling any medium-grade Type 1 ore to feed as run of mine (ROM) at a later stage. The high-grade pit shell from the pit optimisation was used as a guide for the design of the first five-year pit.

The final pit pushback Phase 2 was then designed to the final pit limits, and the final pit shell from the pit optimisation was used as a guide.

The final pit design is approximately 660 m north to south, 550 m east to west, and has a depth of 354 m from the pit rim on the south side (top of Songwe Hill) and 134 m on the north side (bottom of Songwe Hill).

A mining schedule was developed, targeting the design plant throughput of 1,0 Mt/a of ore.

Bench Height
Mining equipment used to drill and blast the rock determines the bench height. Currently, most large mining operations adopt 10 m to 15 m bench heights. For the Songwe Hill open pit, a maximum of 10 m bench heights were adopted based on the PFS mine design criteria.

Bench Face Angles
Based on the SWedge analysis results, a bench face angle of 70° is suggested for both transitional and trans-fresh domains.


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
REE Carbonate t 8,425151,644
Total Rare Earth Oxides Concentrate kt  ......  Subscription required  ......  Subscription required
Total Rare Earth Oxides REO in carbonate kt  ......  Subscription required  ......  Subscription required
Total Rare Earth Oxides Oxide in concentrate kt  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes milled, LOM  ......  Subscription required
Annual milling capacity  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Mineral Resource at 1.00 % TREO Cut-Off Grade.

CategoryTonnage CommodityGradeContained Metal
Proven 8.16 Mt Total Rare Earth Oxides 1.28 % 104,183 t
Probable 9.988 Mt Total Rare Earth Oxides 1.07 % 106,801 t
Proven & Probable 18.147 Mt Total Rare Earth Oxides 1.16 % 210,984 t
Measured 8.81 Mt Total Rare Earth Oxides 1.5 % 131,929 t
Indicated 12.22 Mt Total Rare Earth Oxides 1.35 % 165,469 t
Measured & Indicated 21.03 Mt Total Rare Earth Oxides 1.41 % 297,398 t
Inferred 27.54 Mt Total Rare Earth Oxides 1.33 % 366,154 t

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Total Rare Earth Oxides USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
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
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 2,000
Transportation (haulage) costs $M USD 59.2
G&A costs $M USD 99.6
Total OpEx $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $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
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of July 1, 2022:
HME TypeModelQuantityLeased or
Contractor
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... 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 Sep 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 1, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Feasibility Study Report 2022
Pre-Feasibility Study Report 2015
Subscription required - Subscription is required.

News:

NewsDate
Mkango Receives ESHIA Approval for the Songwe Hill Rare Earths Project January 26, 2023

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