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DESMAUR INVESTMENTS PTY LTD ROMVEST PTY LTD GULICK ENTERPRISES PTY LTD SUMNER MANAGEMENT PTY. LTD. NACD SHARE PLAN PTY LTD BOARDMAN ENGINEERING PTY. LTD. PENBOY PTY. LTD. THE RIGGING SHOP PTY LTD JOEPE ENTERPRISES PTY. LIMITED PETER MOONEY SERVICES PTY. LTD. B. & M. BAGGETTO PTY. LTD BIOCENE PTY. LTD. JJF & AMG CO. PTY. LIMITED TIGHE INVESTMENTS PTY. LIMITED RICHMOND HOLDINGS (QLD) PTY. LTD. R. J. PRINTING GRAPHICS PTY. LIMITED ORN PTY LTD RIVERSKY PTY. LTD. EC VENTUROS PTY. LIMITED PWDR HOLDINGS PTY LTD