Anglo Platinum is the world's leading primary producer of platinum. It also produces other platinum group metals (PGMs) in quantities determined by their occurrence in the ores mined. In addition to platinum, PGMs comprise palladium, rhodium, ruthenium, iridium and osmium. Nickel, copper and other base metal products are byproducts of PGM operations. Operations comprise 6 mines, 4 joint ventures, 3 smelters, 17 concentrator plants, a base metals refinery and a precious metals refinery.