12 trade and investment south africa customised sector programmes priority metals page of 108 strategy chapter 2 overview 1 industry structure 11 in the context this report covers both manufacture basic precious production metal products refers primarily to iron steel non ferrous sub sectors former comprises two kinds carbon stainless aluminium brass copper lead tin zinc include gold platinum consists firms that are involved smelting refining rolling drawing alloying castings fabrication such intermediate critical inputs used by downstream forgers engineering companies jewellery manufacturers it is important differentiate distinguish between upstream industries typically large scale capital intensive operations primary activity extracting processing a mineral deposit as activities extend
