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Australia
Mt Weld Mine

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 Location:
30 km SE from Laverton, Western Australia, Australia
  Address:
Level 1, 45 Royal Street
East Perth
Western Australia, Australia
6004
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • REE
  • Total Rare Earth Oxides
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life25 years (as of Jan 1, 2021)
The Mt Weld Central Lanthanide Deposit (CLD) is one of the highest grade rare earth deposits in the world. Mt Weld also hosts the undeveloped Duncan (rare earth), Crown (niobium, tantalum, titanium, rare earths, zirconium) and Swan (phosphate) deposits.

Lynas processes the CLD ore at the Mt Weld Concentration Plant to produce a rare earth concentrate that is sent for further processing at Lynas Malaysia’s Advanced Material Plant near Kuantan, Malaysia.

The Mt Weld expansion will target feedstock production capacity of 12,000 tonnes per annum NdPr equivalent in 2024. Further capacity expansion in existing upstream and downstream production together with growth options for 2025 and beyond are being developed.
Latest NewsJare Extends Support For Lynas Growth Plan     March 7, 2023

Owners

Source: p. 11
CompanyInterestOwnership
Lynas Rare Earths Ltd. 100 % Indirect

Contractors

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Deposit Type

  • Carbonate hosted

Summary:

Mt Weld rare earth ore deposit occurs as supergene enriched mineralisation hosted in the Mt Weld Carbonatite regolith. The deposits have formed in the regolith profile of carbonatite with the rare earths concentrated by the removal of calcium, magnesium and other carbonate minerals during prolonged weathering process.

The Mount Weld rare earths deposits sit in a two billion year old volcanic plug. It is estimated that approximately 1.8km of the volcanic plug has been weathered during this time to form a high grade supergene Rare Earth Oxide (REO) deposit.

The Mt Weld Carbonatite (MWC) is a sub-vertical cylindrical igneous intrusion approximately 3.6 kilometres in diameter. The MWC is concealed under a 25m thick layer of younger transported alluvial sedimentary cover. Prior to the sedimentation, a prolonged widespread lateritic weathering process over the Laverton geological region has concentrated REE minerals in the carbonatite’s upper saprolite zone. The saprolite zone has variable thickness from about 80m to 120m below the surface.

Mining Methods

  • Truck & Shovel / Loader

Summary:

Lynas’ current REE open pit mine is about 65m deep and is producing REE ore from the saprolite zone.

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits202220212020201920182017
Total Rare Earth Oxides t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required17,75316,003
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Operational Metrics:

Metrics2021
Annual production capacity  ......  Subscription required
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Reserves at June 30, 2022:
Mineral Resources have been reported above a cut-off of 2.5% TREO.

CategoryTonnage CommodityGradeContained Metal
Proven 13.7 Mt Total Rare Earth Oxides 8.4 % 1,158 kt
Probable 5 Mt Total Rare Earth Oxides 7.4 % 369 kt
Proven & Probable 18.6 Mt Total Rare Earth Oxides 8.2 % 1,527 kt
Measured 17 Mt Total Rare Earth Oxides 7.6 % 1,307 kt
Indicated 11.8 Mt Total Rare Earth Oxides 5.4 % 633 kt
Inferred 25.9 Mt Total Rare Earth Oxides 3.6 % 937 kt
Total Resource 54.7 Mt Total Rare Earth Oxides 5.3 % 2,877 kt

Financials:

Units202220212020201920182017
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 374.1   257  
Gross profit M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 121.1   14.7  
EBIT M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 101.3   -0.4  
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 140.9   42.2  
Operating Cash Flow M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 118.5   34  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 23, 2022
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Staff:

EmployeesYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
Press Release 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2019
Annual Report 2018
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News:

NewsDate
Jare Extends Support For Lynas Growth Plan March 7, 2023

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