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Australia
Dubbo Project

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 Location:
25 km S from Dubbo, New South Wales, Australia

  Project Contacts:
Level 4, 66 Kings Park Road
PO Box 768
West Perth
Western Australia, Australia
6005
Phone  ...  Subscription required
Fax61-8-9200-1682
EmailEmail
WebsiteWeb
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  • Overview
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  • Mining
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • REE
  • Zircon
  • Hafnium
  • Niobium
  • Tantalum
  • Yttrium
Mining Method
  • Truck & Shovel / Loader
Mine Life20 years (as of Jan 1, 2021)
The Dubbo Project is construction ready, with all major permits approved.


Owners

Source: p. 6
CompanyInterestOwnership
Australian Strategic Materials Ltd. 100 % Direct

Contractors

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Deposit Type

  • Volcanic hosted


Summary:

The Toongi deposit is centred on a trachyte outcrop that forms one of several alkaline volcanic and intrusive bodies of Jurassic age in the region (formed approximately 205 to 140 million years ago). The elliptical-shaped body has approximate dimensions of 850m east–west by 550m north–south. The deposit forms a low irregular topographic rise and has a depth extent of 115m below surface.

The orebody is dominantly a massive, fine grained microporphyritic trachyte comprising more than 80% feldspar, albite and aegirine in roughly equal amounts. The remainder of the rock is made up of opaque minerals. Extensive mineralogical studies indicate that the ore minerals contained in the deposit are extremely fine-grained, being less than 100µm in size (and generally less than 10µm), and uniformly distributed throughout the rock mass. The bulk of the ore metals are hosted in complex Na–Ca Zr–Hf–HREE silicate phases (eudialyte like). The dominant Nb (and Ta) mineral is close to NaNbO3 (natroniobite) in composition. Separately bastnasite hosts the light rare earth metals.

The deposit contains elevated levels of the metals zirconium (Zr), hafnium (Hf), niobium (Nb), tantalum (Ta), yttrium (Y) and rare earth elements (REEs) – lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and lutetium (Lu). The orebody also contains uraniu ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining of the ore deposit will take place in a single open pit, using drill and blast methods to fragment material that will then be transported to the Run-of-Mine (ROM) Pad for crushing and grinding.

The scheduled 20-year mining quantities include 1.73 Mt waste and 18.9 Mt ore, indicating a waste: ore strip ratio of 9.1%. The pit is mined in stages with the initial 10 years of production sourced from the western half of the pit, Stage 1a (west) and Stage 1b (east) mined from year 10, resulting in increased waste movements from the commencement of Stage 1b.

Articulated dump trucks have been selected to allow flexibility while working in the rugged operating conditions when mining consists of benching out a hilly terrain and hauling downhill. Articulated haul trucks will also offer the flexibility to be utilised as a part of the pre-mining construction activities such as pond excavation, bund, run of mine stockpile are (ROM pad) and tailings storage facility construction.

The trucks will be loaded by a front-end loader (FEL). It is anticipated there will be five trucks hauling ore to the ROM pad (2,800 m from pit edge to ROM pad) and three trucks hauling waste material to the waste dump (950 m from pit edge to the waste dump). Given the low waste/ore ratio, there is minimal waste and minimal selective mining required. An FEL rather than an excavator will be the prime loading tool, providing a cheaper, more sustainable, and versatile solution. ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. Annual
Zircon Oxide t 13,500
Hafnium Oxide t  ......  Subscription required
Niobium Ferro-niobium t  ......  Subscription required
Terbium Oxide t  ......  Subscription required
Dysprosium Oxide t  ......  Subscription required

Operational Metrics:

Metrics
Plant annual capacity  ......  Subscription required
Annual ore mining rate  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required19 Mt *
Tonnes processed, LOM  ......  Subscription required19.3 Mt *
* According to 2021 study.
Subscription required - Subscription is required.

Reserves at June 4, 2018:
The Mineral Resources as of 30 June 2020 at Dubbo mine are unchanged from June 4th, 2018.

CategoryTonnage CommodityGrade
Proven 18.9 Mt ZrO2 1.85 %
Proven 18.9 Mt HfO2 0.04 %
Proven 18.9 Mt Nb2O5 0.44 %
Proven 18.9 Mt Ta2O5 0.03 %
Proven 18.9 Mt Y2O3 0.14 %
Proven 18.9 Mt Total Rare Earth Oxides 0.74 %
Measured 42.81 Mt ZrO2 1.89 %
Measured 42.81 Mt HfO2 0.04 %
Measured 42.81 Mt Nb2O5 0.45 %
Measured 42.81 Mt Ta2O5 0.03 %
Measured 42.81 Mt Y2O3 0.14 %
Measured 42.81 Mt Total Rare Earth Oxides 0.74 %
Inferred 32.37 Mt ZrO2 1.9 %
Inferred 32.37 Mt HfO2 0.04 %
Inferred 32.37 Mt Nb2O5 0.44 %
Inferred 32.37 Mt Ta2O5 0.03 %
Inferred 32.37 Mt Y2O3 0.14 %
Inferred 32.37 Mt Total Rare Earth Oxides 0.74 %
Total Resource 75.18 Mt ZrO2 1.89 %
Total Resource 75.18 Mt HfO2 0.04 %
Total Resource 75.18 Mt Nb2O5 0.44 %
Total Resource 75.18 Mt Ta2O5 0.03 %
Total Resource 75.18 Mt Y2O3 0.14 %
Total Resource 75.18 Mt Total Rare Earth Oxides 0.74 %

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Dysprosium USD  ......  Subscription required&nbs
Assumed price Terbium USD  ......  Subscription required&nbs
Assumed price Praseodymium USD  ......  Subscription required&nbs
Assumed price Neodymium USD  ......  Subscription required&nbs
Assumed price Hafnium USD  ......  Subscription required&nbs
Assumed price ZrO2 USD  ......  Subscription required&nbs
Assumed price Ferrous Niobium USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Sustaining CapEx $M AUD  ......  Subscription required
Total CapEx $M AUD  ......  Subscription required
Gross revenue (LOM) $M AUD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M AUD  ......  Subscription required
Pre-tax NPV @ 8% $M AUD  ......  Subscription required
After-tax NPV @ 8% $M AUD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Subscription required - Subscription is required.


Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 21, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 21, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Annual Review 2022
Financial Review 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Press Release 2018
Annual Report 2017
Press Release 2017
Press Release 2015
Corporate Presentation 2013
Feasibility Study Report 2013
Press Release 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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