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PERHAM - SILHOUETTE HOLDINGS PTY LTD TINDEX PTY LTD RETON HOLDINGS PTY LTD BIOHEAP LIMITED ARGENT INVESTMENTS PTY LTD HAZCOM PTY. LIMITED TORRIDON NOMINEES PTY LTD ORIENT HOLDINGS PTY LTD R. I. FITZPATRICK PTY. LTD. JOHN KELLY PTY. LTD. "C" SOLUTIONS PTY LTD NORTHEY POWDER COATINGS PTY LTD HARLEQUIN RESOURCES PTY LTD SINOSTEEL MIDWEST CORPORATION LIMITED PARRICON PTY LTD LAKESIDE PTY LTD PERRYFAC PTY LTD LEFKI PTY LTD PETER F. ROBINSON & ASSOCIATES PTY LTD ALTO PTY LTD