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Australia
Miitel Mine (Kambalda Nickel Operation)

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 Location:
95 Km S from Kalgoorlie, Western Australia, Australia

  Address:
Ground Floor, 9 Havelock Street
West Perth
Western Australia, Australia
6005
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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Nickel
Mining Method
  • Overhand Cut & Fill
  • Longhole open stoping
  • Longhole stoping
  • Avoca
  • Longitudinal stoping
  • Cemented backfill
Production Start...
The Miitel mine was placed on care and maintenance in February 2016 following a prolonged period of low nickel prices.

The mine plan involves dewatering and rehabilitation of the mine prior to the commencement of underground extraction of the South Miitel and Burnett deposits.


Owners

Source: p. 1
CompanyInterestOwnership
Mincor Resources NL 100 % Indirect
Mincor owns 100% of Miitel.

Contractors

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Deposit Type

  • VMS


Summary:

In general, ore at Miitel is located at the steeply dipping contact between footwall basalt and a less competent hanging wall ultramafic unit.

The majority of the Miitel area consists of the N30 and N31 lodes. Both areas strike roughly north-south. The N31 has a strike length of ~180m, extending from ~-400m RL (~705mbs) to -300m RL (100m extent). The N30 has a strike length of ~450m, extending from ~-580m RL (~885mbs) to -430m RL (150m extent) and plunging gently to the south. Both areas consist of single lodes dipping sub-vertically (60-70°) to the east, with widths from 1-8m (N31) and 2-10m (N30).

There are two mining areas in the Burnett mine plan, being the B01 and B02 areas. Both areas strike at ~330-340°. The B01 has a strike length of ~260m, extending from ~-415m RL (~725mbs) to -290m RL (125m extent). The B02 has a strike length of ~340m, extending from ~-460m RL (~420mbs) to -310m RL (150m extent). Both areas consist of single lodes dipping sub-vertically (>80°) to the north-east, with widths ranging from 1-5m.


Mining Methods

  • Overhand Cut & Fill
  • Longhole open stoping
  • Longhole stoping
  • Avoca
  • Longitudinal stoping
  • Cemented backfill


Summary:

The orebodies are planned to be accessed through the existing Miitel portal and decline. The Miitel decline will require dewatering and rehabilitation of ground support and services prior to the commencement of development.

Currently the mining schedule allows for the mining fleet (including personnel) at Miitel to be sourced from the Northern Operations. This will be dependent on whether mine life can be extended at the Northern Operations.

Based on the orebody spatial and geotechnical characteristics, the primary mining method proposed is bottom-up longitudinal longhole stoping (LHS) with modified Avoca assuming cemented rockfill (CRF). Vertical sub-level intervals are 15-20m floor-to-floor. Areas without top access (i.e. crown stopes or levels directly beneath sill pillars) will be mined using conventional longhole open stoping, retaining in-situ pillars for support. Maximum open stope strike lengths of 12m have been applied based on geotechnical advice. Slots to open stoping spans have been designed assuming handheld development methods. Subsequently mined stopes in filled levels will be fired against fresh CRF without the requirement for additional slotting. Some areas will be mined using overhand cut-and-fill methods or airleg stoping, dependent on orebody geometry.

Drilling and blasting will be carried out using conventional electric over hydraulic drill rigs and diesel charge wagons. A modern diesel mechanised fleet will load and ha ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnitsLOM (Projected)
Nickel t 9,200
All production numbers are expressed as metal in concentrate.


Reserves at June 30, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven 19,000 t Nickel 2.9 %
Probable 397,000 t Nickel
Proven & Probable 416,000 t Nickel 2.45 % 10,200 t
Measured 156,000 t Nickel 3.5 %
Indicated 649,000 t Nickel
Inferred 27,000 t Nickel
Total Resource 832,000 t Nickel 3.34 % 27,800 t



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Other 2004
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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