Anglo American is a global mining company with a portfolio of mining operations and undeveloped resources. Co. is focused on diamonds, copper, platinum group metals (PGMs), and bulk commodities and other minerals. Co.'s segments include: De Beers, which produces rough and polished diamonds; Copper, which produces copper; Platinum, which produces PGMs; Iron Ore and Manganese, which produces iron ore, manganese ore and alloys; Coal, which produces metallurgical coal and thermal coal; and Nickel, which produces nickel.

BHP Billiton is a global resources company. Co. operates under a Dual Listed Company (DLC) structure, which consists of the BHP Billiton Limited Group and the BHP Billiton Plc Group, operating as a single economic entity. As of June 30 2017, Co. operated four reportable segments: Petroleum, which is involved in the exploration, development and production of oil and gas; Copper, which is involved in the mining of copper, silver, lead, zinc, molybdenum, uranium and gold; Iron ore, which is involved in the mining of iron ore; and Coal, which is involved in the mining of metallurgical coal and thermal (energy) coal.

Eramet is a mining and metallurgical group, which specializes in the extraction, production and marketing of non-ferrous metals, their chemical derivatives, alloys and superalloys, and parts. Co.'s operations are divided into three divisions: Nickel division which focuses on nickel and its derivative applications; Manganese division which focuses on manganese alloys, manganese chemical derivatives and provides recovery and recycling services of metals contained in oil-industry catalysts, electric batteries and acid solutions; and Alloys division which produces and sells special high-performance steels, superalloys and pre-machined parts based on these materials or aluminium and titanium.

Rio Tinto is engaged in finding, mining and processing mineral resources. Co. has four product groups: iron ore, which supplies the global seaborne iron ore trade; aluminium, which includes bauxite mines, alumina refineries, and aluminium smelters; Copper and Diamonds, which has managed operations in Australia, Canada, Mongolia and the U.S., and non-managed operations in Chile and Indonesia, with by-product including gold, silver, molybdenum and others such as sulphuric acid, rhenium, and lead carbonate; and Energy and Minerals, which comprises mining, refining and marketing operations across borates, coal, iron ore concentrate and pellets, salt, titanium dioxide and uranium sectors.