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Papua New Guinea
Ok Tedi (Mt. Fubilan) Mine

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 Location:
100 km N from Kiunga, Papua New Guinea

  Address:
1 Dakon Road
Tabubil
Papua New Guinea
332
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2033
The Ok Tedi (Mt. Fubilan) is the longest running open-pit copper, gold and silver mine in Papua New Guinea.
Latest NewsOk Tedi Mining board greenlights mine life extension to 2050     September 22, 2023


Owners

Source: p. 6,13
CompanyInterestOwnership
Ok Tedi Mining Ltd. 100 % Direct
Ok Tedi Mining Limited (OTML, or the Company) is proudly a 100% owned Papua New Guinea (PNG).

Structure for OTML at 31 December 2021: Kumul Minerals Ok Tedi Ltd (State of PNG) holding 67% and Western Province entities 33%.

Contractors

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Deposit Type

  • Skarn
  • Porphyry
  • Breccia pipe / Stockwork


Summary:

The Ok Tedi mining operations are centred on the Mt Fubilan deposit located in the Star Mountains of the Western Province.

Mt Fubilan is a rich coppergold-silver deposit with several phases of mineralisation centred on two intrusions, known as the Fubilan monzonite porphyry, located in the northern half or Centre Pit area and the Sydney monzodiorite stockworks with subsequent alteration in the south. Majority of the ore is found in the sulphide skarns, located adjacent to the intrusions along the contacts with the limestone and siltstone units.

In 2022, OTML exploration concentrated on near mine targets within SML1 (New York Breccia, Wellington, Gilor 10 and Komgubip) as well as reconnaissance drilling on EL 2156 at Mt Frew and Mt Kwang.

OTML continues its resource definition drilling within the Fubilan mine area and on advanced prospects within SML1 to replace mined reserves and improve resource confidence.

Within SML1, exploration activities focused on completing the drill program on the New York Breccia, drill testing the Gilor Breccia, a program of resource drilling at Wellington, and drilling at the Komgubip prospect East of Wellington.

A total of 29 holes were completed on SML1 for an aggregate of 13,513 metres (m).

NEW YORK BRECCIA
The resource drilling program at New York was completed by the end of Q1 2022. The revised resource estimate for the New York Breccia was completed by AMC consultants. ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining of the Mt Fubilan Ore Reserves continues to be carried out as a large open pit operation. Mining is conducted using conventional drill and blast techniques, with shovel and excavator loading equipment. Ore is mined and transported to a primary crusher as first stage processing or to a Run of Mine stockpile, where blending of various ore types can take place. Waste rock is characterised according to its Acid Rock Drainage (ARD) potential and disposed of in one of five waste dumps. Limestone waste rock is selectively dumped together with potential ARD waste rock to neutralise acid production.

The pit design and pit sequencing has been developed to maximise value while meeting environmental constraints agreed with mine-affected communities.

With approximately 9,000 mm of rainfall per annum, incident rainfall and runoff contributes significant volumes of free water draining into the pit. Rainwater also permeates into the rock mass contributing to instability due to increased pore pressure.

Comprehensive monitoring of hydrological and geotechnical factors are incorporated in mining strategy and plans to ensure safe operations.


Crushing and Grinding
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Processing

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Summary:

- subscription is required.


Production:

CommodityProductUnits2022202120202019201820172016
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required9610580
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required394437320
Gold Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Daily ore mining rate  ......  Subscription required
Daily waste mining rate  ......  Subscription required
Annual processing capacity  ......  Subscription required  ......  Subscription required24 Mt24 Mt23 Mt24 Mt
Total tonnes mined  ......  Subscription required  ......  Subscription required93.1 Mt105.7 Mt89.5 Mt84.6 Mt
Tonnes milled  ......  Subscription required  ......  Subscription required16.2 Mt18.7 Mt18.9 Mt20.1 Mt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2022:

CategoryTonnage CommodityGrade
Proven 68 Mt Copper 0.87 %
Proven 68 Mt Gold 1.01 g/t
Probable 168 Mt Copper 0.66 %
Probable 168 Mt Gold 0.79 g/t
Proven & Probable 236 Mt Copper 0.72 %
Proven & Probable 236 Mt Gold 0.85 g/t
Measured 105 Mt Copper 0.7 %
Measured 105 Mt Gold 0.82 g/t
Indicated 301 Mt Copper 0.54 %
Indicated 301 Mt Gold 0.66 g/t
Inferred 13 Mt Copper 0.52 %
Inferred 13 Mt Gold 0.68 g/t
Total Resource 419 Mt Copper 0.58 %
Total Resource 419 Mt Gold 0.7 g/t

Commodity Production Costs:

CommodityUnits201920182017
C1 cash costs Copper USD  ......  Subscription required 1.22 / lb   0.93 / lb  

Operating Costs:

Units201920182017
OP mining costs ($/t mined) USD 2.62  2.49  1.97  

Financials:

Units202220212020201920182017
Capital expenditures M PGK  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 668   174  
Sustaining costs M PGK  ......  Subscription required
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 845  USD 996  USD
Operating Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 188  USD 378  USD
Pre-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 200  USD 378  USD
After-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 141  USD 266  USD
Operating Cash Flow M  ......  Subscription required  ......  Subscription required
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Pipelines
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Heavy Mobile Equipment as of December 31, 2016:
HME TypeModelQuantity
Excavator ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Annual Review 2022
Financial Review 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Review 2018
Annual Review 2017
Annual Review 2016
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News:

NewsDate
Ok Tedi Mining board greenlights mine life extension to 2050 September 22, 2023

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