A mass of naturally occurring mineral material near to the surface or deeper underground, which is suitable for economic use in terms of quantity, quality and conditions.

A heat-retrieval unit used to produce steam without a furnace using the hot by-product gas from metallurgic operations, industrial furnaces, power generators or combustion engines.

Leaching using acids (acid solutions) as reagents.

American Depositary Receipt; a security representing the right of ownership in the deposited securities of a foreign company, certified by receipts issued by a US depositary bank.

Sintered ore produced in the process of agglomeration.

A method of formation of relatively large porous blocks (agglomerates) from fine ore or powder ore by sintering (roasting) of ore. In this process, easily fusible materials fix solid particles with ea [..]

Crude metal (nickel or copper) obtained from anode smelting and fed for electrolytic refining (electrolysis) whereby it is dissolved.

Detonating explosives in natural rock formations for the purpose of controlled destruction and removal or changing its structure and form.

Solid residue from pulp filtering received as a result of leaching of ores, concentrates or intermediate metallurgical products as well as purification of technological solutions. 

Pure metal (nickel or copper) obtained as a result of electrolytic refining of anodes.