june 2003 volume 16 2 department of minerals and energy directorate mineral economics bureau mb bulletin table contents page abbreviations symbols i 1 diamonds south african production developments during 2002 platinum group metals their niche applications 3 market drivers for fuel cells 4 silver a review 7 5 southern ferrochrome subject to price volatility 9 6 africa joins clean coal agreement 11 brick boom blasts all expectations 13 8 labour trends gold pgm 1988 15 s contribution world primary metal 19 10 sa commodity export indices cepi 22 australian dollar b billion thousand million cif cost insurance freight e estimate fob free on board rail g t gram per ton kg kilogram kt tons lb pounds avoirdupois lme london exchange m metre mt annum ozt troy ounce metric month micro us unless stated otherwise yen
