The heart of steel
AssmangÔÇÖs properties are in the Kalahari manganese field in South AfricaÔÇÖs Northern Cape Province, which contains some 80 per cent of the world's known high-grade manganese ore reserves, vital to the worldÔÇÖs steel industry. John OÔÇÖHanlon reports on major recent and projected investment at one of AfricaÔÇÖs largest manganese mines.