Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
- Copper
- Molybdenum
- Silver
- Gold
|
Mining Method |
|
Production Start | ... |
Mine Life | 2097 |
Collahuasi is a world-class orebody with significant growth potential.
Various debottlenecking options are being studied that are expected to add c.25,000 tonnes per annum (tpa) (Anglo American 44% share) between 2025–2028. Beyond that, studies and permitting are under way for a fourth processing line in the plant and mine expansion that would add up to 150,000 tpa (Anglo American 44% share). Timing of that expansion is subject to the permitting process; assuming permit approval in 2027, first production could follow from c.2032. A desalination plant is currently under construction that will meet a large portion of the mine’s water requirements when complete in 2026. |
Source:
The Collahuasi mine is operated by a joint venture company, Compania Minera Dona Ines de Collahuasi SCM. The joint venture partners are Glencore (44 per cent.), Anglo American (44 per cent.), and Japan Collahuasi Resources (JCR) is a consortium of Japanese companies led by Mitsui & Co., Ltd. (12 per cent.).
Contractors
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Deposit Type
- Porphyry
- Vein / narrow vein
Summary:
Collahuasi comprises two large copper-molybdenum porphyry-type deposits (Rosario and Ujina) with several peripheral vein deposits (Rosario Oeste and Rosario Sur). The Rosario deposit is the focus of current open cut mining operations.
Mineralisation at Rosario and Ujina is mainly associated with veins, especially in Rosario. These major Cu-Ag-As veins include the NNE trending Montezuma and La Grande vein systems and the NW-trending Rosario and Poderosa vein systems (Masterman, et al,. 2005). The two deposits show typical profile of a secondary enrichment process: a leach cap, a copper oxides zone, a secondary enrichment blanket and a primary sulphide core. To the west of Rosario is located Capella, which is an exotic copper deposit with copper oxides associated to gravels, probably derived from the Rosario porphyry.
The Rosario deposit is characterized by a dome-shaped zone of copper mineralization centred on the Rosario and Collahuasi porphyries. The centre of the mineralised zone contains bornite, chalcopyrite, and primary chalcocite and generally lacks pyrite. Copper mineralization occurs as both disseminations and fracture- controlled veinlets. The deposit contains a thin, erratically developed secondary enrichment blanket underlain by a relatively high-grade primary chalcopyrite zone. The lack of a well-developed secondary enrichment blanket is due to both presence of structures and level of oxidization. In addition, the secondary zone is offset a ........
Summary:
The mining method applied since the beginning of the operation, which will not change for the LOM, it is conventional truck and shovel open pit mining.
Source:
Source:
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Flow Sheet:
Summary:
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Pipelines and Water Supply
Source:
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Production:
Commodity | Product | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
Copper
|
Metal in concentrate
|
t
| ...... | ...... | ...... | ...... | ...... | 559,100 | 523,900 |
Silver
|
Metal in concentrate
|
koz
| ...... | ...... | ...... | ...... | ...... | ...... | ...... |
Gold
|
Metal in concentrate
|
koz
| ...... | ...... | ...... | ...... | ...... | | |
Copper
|
Cathode
|
t
| | | | | | | 100 |
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Operational Metrics:
Metrics | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
Ore tonnes mined
| ...... | ...... | ...... | ...... | 87,253,200 t | 51,886,400 t |
Tonnes processed
| ...... | ...... | ...... | ...... | 54,133,100 t | 49,470,500 t |
Total tonnes mined
| ...... | ...... | ...... | ...... | | |
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Reserves at December 31, 2023:
Mineral Resources cut-off grades – 0.3% TCu.
Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
Stockpiles
|
362.4 Mt
|
Copper
|
0.57 %
|
2,066 kt
|
Proven & Probable
|
Sulphide
|
2,634 Mt
|
Copper
|
0.97 %
|
25,578 kt
|
Proven & Probable
|
Low-grade sulphide
|
1,121 Mt
|
Copper
|
0.46 %
|
5,178 kt
|
Proven & Probable
|
Stockpiles
|
362.4 Mt
|
Molybdenum
|
0.013 %
|
47 kt
|
Proven & Probable
|
Sulphide
|
2,634 Mt
|
Molybdenum
|
0.026 %
|
683 kt
|
Proven & Probable
|
Low-grade sulphide
|
1,121 Mt
|
Molybdenum
|
0.011 %
|
120 kt
|
Measured & Indicated
|
Sulphide
|
987.9 Mt
|
Copper
|
0.9 %
|
8,884 kt
|
Measured & Indicated
|
Oxide & Mixed
|
66.7 Mt
|
Copper
|
0.7 %
|
468 kt
|
Measured & Indicated
|
Low-grade sulphide
|
398.4 Mt
|
Copper
|
0.47 %
|
1,873 kt
|
Measured & Indicated
|
Sulphide
|
987.9 Mt
|
Molybdenum
|
0.033 %
|
324 kt
|
Measured & Indicated
|
Low-grade sulphide
|
398.4 Mt
|
Molybdenum
|
0.014 %
|
56 kt
|
Inferred
|
Sulphide
|
2,885 Mt
|
Copper
|
0.9 %
|
25,979 kt
|
Inferred
|
Oxide & Mixed
|
110.3 Mt
|
Copper
|
0.5 %
|
551 kt
|
Inferred
|
Low-grade sulphide
|
2,040 Mt
|
Copper
|
0.46 %
|
9,399 kt
|
Inferred
|
Sulphide
|
2,885 Mt
|
Molybdenum
|
0.018 %
|
522 kt
|
Inferred
|
Low-grade sulphide
|
2,040 Mt
|
Molybdenum
|
0.009 %
|
191 kt
|
Corporate Filings & Presentations:
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