Six of the world's biggest mining and steel companies have converged on a mineral-rich corner of west Africa once beset by civil war.
These companies, which collectively plan to spend billions of dollars, are drawn to Guinea, Liberia and Sierra Leone, where some of the world's largest deposits of iron ore, the raw ingredient of steel, are found.
The groups are Rio Tinto and BHP Billiton, the Anglo-Australian mining houses, ArcelorMittal, the UK steel company, Severstal, a Russian group, Chinalco, a Chinese mining enterprise, and Vale, a Brazilian competitor.
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