Chile

Radomiro Tomic Mine

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Categories

Overview

Mine TypeOpen Pit
Commodities
  • Copper
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life2065
ShapshotThe Radomiro Tomic mine is a state of the art facility, and the world’s largest producer of copper using the highly efficient SX-EW process.

In Radomiro Tomic, the project alternative recommended by the Sulfides Phase II pre-feasibility study was approved, which considers a mixed configuration that includes a new concentrator plant and sulphide chloride leaching that extends the use of the existing plant.

Owners

SourceSource
CompanyInterestOwnership
Codelco Corp. (operator) 100 % Indirect
Codelco, as a productive business, grouped all the deposits (The El Teniente, Andina, Exotica, Chuquicamata and El Salvador) into a single mining, industrial and commercial corporation.

Codelco Corp. operates seven mine sites (known as “divisiones”): Chuquicamata, Ministro Hales, Radomiro Tomic, Gabriela Mistral, Salvador, Andina, El Teniente, in addition to the Ventanas Smelter and Refinery.

Contractors

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Deposit type

  • Porphyry

Summary:

The Chuquicamata district includes the Chuquicamata and Radomiro Tomic megadeposits, the exotic copper deposit Mina Sur, the newly developed Ministro Hales mine (formerly known as Mansa Mina) located 5.5 km south of Chuquicamata, and the deposits of the Toki cluster (Toki, Genoveva, Quetena, Miranda, and Opache) located about 15 km SSW of Chuquicamata. Total identified resources for the Chuquicamata district are estimated at 107.4 Mt of fine copper considering a cutoff Cu grade of 0.2 wt% (Codelco Memoria Anual 2011). Inferred resources for the cluster are estimated at about 20 Mt of fine copper, with Toki contributing with ca. 11.2 Mt and Quetena with ~3.8 Mt (Camus 2003; Rivera et al. 2006).

The deposits of the district are located in the Late Eocene–Early Oligocene (43–31 Ma) porphyry copper belt that extends for about 1,400 km, from 18°S to 31°S (Sillitoe 1988; Sillitoe and Perelló 2005). The rocks in the area range in age from Paleozoic to Tertiary. The main structural feature observed is the West Fault, which is part of the Domeyko Fault System (Boric et al. 1990; Dilles et al. 1997) and divides the district in two domains: an eastern domain and a western domain.

The main copper oxide minerals in the Radomiro Tomic deposit are atacamite, copper clays, chrysocolla, and copper wad. Their relative abundance provides the basis for dividing the oxide zone into two major geologic units: the Upper Oxide unit and the Lower Oxide unit. Furthermore, the study of mineral abundances in the oxide zones allowed the definition of an oxide mineral zonation that consists of five mineral assemblages, based on the relative proportion of the three main copper oxide components: atacamite, copper clays, and chrysocolla. These classifications allow both an understanding of the distribution of copper minerals throughout the zone and an interpretation of the supergene processes that formed it.

The Upper Oxide unit is mineralogically heterogeneous. The copper content is furnished, on average, by 40 vol percent atacamite, 31 vol percent copper clays with minor chysocolla and copper wad. The Lower Oxide unit is more homogeneous. Atacamite accounts for 70 vol percent of the copper ore minerals with minor amounts of copper clays and chrysocolla. Copper and chlorine concentrations and porosity are greater in the Upper Oxide unit, whereas hematite, chalcocite, and molybdenite concentrations and specific gravity are greater in the Lower Oxide unit.

The vertical distribution of the Cl/Cu ratio shows a chlorine-deficient zone located between elevations of 2,780 and 2,870 m. Between these elevations, the proportion of atacamite is lower and the proportion of copper clays, chrysocolla, and copper wad is higher than in other portions of either the Upper Oxide or Lower Oxide units. [2001, Oxide Mineralization at the Radomiro Tomic Porphyry Copper Deposit, Northern Chile P.1]

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityProductUnits2022202120202019201820172016
Copper Cathode t 000000000000000000000000332,667318,878318,255
Molybdenum Metal in concentrate t 0000006211,7391,770

Operational metrics

Metrics202220212020201920182017
Daily processing capacity 000000000000
Ore tonnes mined 00000000000000077,692 kdmt78,582 kdmt

Production Costs

CommodityUnits20212020201920182017
C1 cash costs Copper USD 000 000 1.54 / lb   1.34 / lb   1.31 / lb  

Financials

Units202220212020201920182017
Revenue M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 2,084   2,315  
Gross profit M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 783.9   812.8  
Pre-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 488.6   471.2  
After-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 159.5   160.6  

Heavy Mobile Equipment

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AV - Autonomous

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 22, 2023
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....................... Subscription required ....................... Subscription required Subscription required Jan 9, 2024

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Aerial view:

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