---

E.C. CONSULTANTS PTY LIMITED BLIS PTY LTD R.J. FIELD HOLDINGS PTY LTD HABANA GRAVEL AND SAND PTY LTD IAN SUTTON PTY LTD PARASOL EMT PTY LIMITED NRC PTY. LTD. POSCOR PTY. LTD. 1954 PTY LTD MELNAR PTY. LTD. MELBROOKE PTY. LTD. LYNDART PTY. LTD. NICARDO PTY. LTD. NEXCORP PTY. LTD. NOW INVESTMENTS PTY LTD CAMBRIDGE TRADING PTY LTD E LAM INVESTMENT (AUST) PTY LTD LAHEY-MARRIOTT HOLDINGS PTY. LIMITED TASWELD SUPERANNUATION FUND PTY. LTD. TASWELD SERVICES PTY LTD