Technology for smelting non-ferrous metals, applications of which for copper are practiced at ISA's plant, based on plant and equipment of Xstrata and ISA's design including that for feed preparation, the smelting vessel, lance burner system, equipment for metal and slag lapping and handling, the specifications for refractories, and for flues and gas cooling and gas cleaning.


Extractable by chemical solvents.

A chemical process by which a soluble metallic compound is extracted from ore by dissolving the metals in a solvent.

A heavy, soft, malleable, ductile but inelastic bluish-white metallic element found mostly in combination and used in pipes, cable sheaths, batteries, solder, type metal, and shields against radioactivity.

London Metal Exchange (LME)
A major bidding market for base metals that operates daily in London.


A malleable and ductile silvery-white metal that is used in alloys.

The product produced in smelting sulfide ores of copper and lead or the smelting of copper bearing materials, usually in a reverberatory.

A plant in which ore is treated and metals are recovered or prepared for smelting; also a revolving drum used for the grinding of ores in preparation for treatment.

A treatment process involving fine grinding of ore followed by extraction of minerals.

Mines are the source of mineral-bearing material found near the surface or deep in the ground.

A naturally occurring homogeneous substance having definite physical properties and chemical composition and, if formed under favorable conditions, a definite crystal form.

Mineral Deposit or Mineralized Material
A mineralized underground body that has been intersected by a sufficient number of closely-spaced drill holes and/or underground sampling to support sufficient tonnage and ore grade to warrant further exploration or development. Mineral deposits or mineralized materials do not qualify as a commercially mineable ore reserves (e.g., probable reserves or proven reserves), as prescribed under standards of the Commission, until a final and comprehensive economic, technical, and legal feasibility study based upon the test results has been concluded.

A deposit of rock containing one or more minerals for which the economics of recovery have not yet been established.

An element often found in copper porphyry deposits. It is used extensively in steels particularly grinding steels and as a filament material.


A silvery-white metal that is very resistant and stable at ambient temperatures.


Open-Pit Mine
A mine that is entirely on the surface. Also referred to as an open-cut or open-cast mine.

A mineral or aggregate of minerals from which metal can be economically mined or extracted.

Ore Reserves
The calculated tonnage and grade of mineralization that can be extracted profitably; classified as possible, probable and proven according to the level of confidence that can be placed in the data.

Ore Body
A natural concentration of valuable material that can be extracted and sold at a profit.

A unit of mass. In the precious metals industry, an ounce means a troy ounce equal to 31.1035 grams.

Waste material overlying ore in an open-pit mine.

That portion of a mineral deposit within which sulfide minerals have been oxidized, usually by surface weathering processes.

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