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Australia
Savannah Mine (Savannah Operation)

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 Location:
103 km NE from Halls Creek, Western Australia, Australia

  Address:
PMB 19
Kununurra
Western Australia, Australia
6743
Phone  ...  Subscription required
Fax+61-8-9167-8113
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Nickel
  • Copper
  • Cobalt
Mining Method
  • Longhole open stoping
  • Cemented backfill
  • Paste backfill
Processing
  • Filter press plant
  • Dewatering
  • Flotation
Mine Life12 years (as of Jan 1, 2020)
Panoramic Resources Limited is pleased to advise that underground development and ore production has commenced ahead of schedule at the Savannah Nickel Project in Western Australia.
Latest NewsPanoramic suspends Savannah nickel operations     April 15, 2020


Owners

Source: p. 103,118
CompanyInterestOwnership
Panoramic Resources Ltd. 100 % Indirect

Deposit Type

  • Magmatic
  • MMS


Summary:

The original Savannah sulphide rich nickel, copper and cobalt orebody is hosted by the layered mafic-ultramafic Savannah Intrusion which is enveloped by aluminous metasediments and para-gneisses of the Tickalara Metamorphics. The Savannah Orebody is mostly confined to a marginal norite unit up to 40 metres thick developed above the base of the intrusion. Areas of massive, matrix and disseminated sulphide mineralisation, dominated by pyrrhotite, chalcopyrite, pentlandite and minor pyrite occur throughout the marginal norite unit.

Prior to the development of the Savannah Open Pit, the marginal norite unit outcropped as a prominent 250 metre long limonite-goethite gossan with fresh sulphide mineralisation developing approximately 20 metres below surface. At approximately 500 metres below the surface, a significant sub-horizontal fault, the 500 Fault, cuts the orebody and offsets it 200 metres to the northwest. A similar fault at approximately 900 metres below surface, the 900 Fault, offsets the orebody a further 250 metres to the northwest. Mineralisation above the 500 Fault is referred to as the “Upper Zone”, between the 500 and 900 faults as the “Lower Zone” and below the 900 Fault as the “sub 900 Fault Zone”.


Mining Methods

  • Longhole open stoping
  • Cemented backfill
  • Paste backfill


Summary:

Ore production is undertaken via conventional long hole open stoping with remote bogging on retreat. Currently, the long hole drilling is undertaken by a contractor. Savannah purchased a used Cabletec drilling rig for ground support and as a backup production drill, as required. The mine plan requires open stopes to be backfilled with cemented paste fill to maximise recovery of the orebody and to assist geotechnical stability of the mine.


Crushing and Grinding
Flow Sheet: Source

Savannah ore has been successfully treated through SAG mill since commissioning in 2004.

Subsequent to the restart further works were completed including the replacement of the Jaw crusher and SAG mill motor. A full set of filters plates is onsite ready for installation.


Processing

  • Filter press plant
  • Dewatering
  • Flotation

Flow Sheet: Subscription required

Summary:

The Savannah processing plant consists of conventional crushing, grinding, flotation, and concentrate handling, producing a bulk nickel-copper-cobalt concentrate for sale to third-party. The nominal throughput capacity of the Savannah plant is approximately 1.0Mtpa.

The Savannah plant operated continuously from August 2004 to May 2016, with continuous improvements in recoveries and throughput achieved from changes in operating practices and minor circuit modifications.

Prior to restarting in in December 2018, the processing plant was refurbished at a cost of $12M, with work encompassing refurbishment of the ROM bin, apron feeders, conveyors; a SAG mill reline; all pumps; flotation cells including replacement of cleaner cells; refurbishment of thickeners and the concentrate filter; enclosing the courier on stream analyser and replacing key components; installing fusion furnaces and installing an XRF in the laboratory. At the paste plant the paste disc filters were ........

Recoveries & Grades:

CommodityParameter20202019
Nickel Recovery Rate, %  ......  Subscription required  ......  Subscription required
Nickel Head Grade, %  ......  Subscription required  ......  Subscription required
Nickel Concentrate Grade, %  ......  Subscription required  ......  Subscription required
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required
Copper Head Grade, %  ......  Subscription required  ......  Subscription required
Copper Concentrate Grade, %  ......  Subscription required  ......  Subscription required
Cobalt Recovery Rate, %  ......  Subscription required  ......  Subscription required
Cobalt Head Grade, %  ......  Subscription required  ......  Subscription required
Cobalt Concentrate Grade, %  ......  Subscription required  ......  Subscription required

Production:

CommodityProductUnits20202019
Nickel Metal in concentrate kt  ......  Subscription required  ......  Subscription required
Nickel Concentrate kt  ......  Subscription required
Copper Metal in concentrate t  ......  Subscription required  ......  Subscription required
Cobalt Metal in concentrate t  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics20202019
Ore tonnes mined  ......  Subscription required281,817 t
Tonnes processed  ......  Subscription required276,039 t
Subscription required - Subscription is required.

Reserves at June 30, 2020:
Mineral Resource cut-off grade is 0.50% Ni.
Savannah Ore Reserve average cut-off (NSR) of $135/t.

CategoryTonnage CommodityGradeContained Metal
Proven 1.233 Mt Nickel 0.95 % 11.7 kt
Proven 1.233 Mt Copper 0.66 % 8.1 kt
Proven 1.233 Mt Cobalt 0.05 % 0.6 kt
Measured 1.01 Mt Nickel 1.44 %
Measured 1.01 Mt Copper 0.8 %
Measured 1.01 Mt Cobalt 0.07 %
Indicated 1.345 Mt Nickel 1.69 %
Indicated 1.345 Mt Copper 1.05 %
Indicated 1.345 Mt Cobalt 0.09 %
Inferred 0.125 Mt Nickel 1.72 %
Inferred 0.125 Mt Copper 0.75 %
Inferred 0.125 Mt Cobalt 0.09 %
Total Resource 2.48 Mt Nickel 1.59 % 39.4 kt
Total Resource 2.48 Mt Copper 0.93 % 23.1 kt
Total Resource 2.48 Mt Cobalt 0.08 % 2.1 kt

Financials:

Units2020
Revenue M AUD  ......  Subscription required
Gross profit M AUD  ......  Subscription required
Pre-tax Income M AUD  ......  Subscription required
After-tax Income M AUD  ......  Subscription required
Operating Cash Flow M AUD  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment as of October 19, 2019:
HME TypeModelSizeQuantityLeased or
Contractor
Loader ....................... Subscription required ....................... Subscription required Leased
Truck (underground) 60 t ....................... Subscription required Leased
Truck (underground) ....................... Subscription required 65 t ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Press Release 2017
Press Release 2017
Subscription required - Subscription is required.

News:

NewsDate
Panoramic suspends Savannah nickel operations April 15, 2020
Independence Group launches takeover offer for Panoramic November 4, 2019
Panoramic first shipment from Savannah restart sets sail February 15, 2019

Aerial view:

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