---

CASTONE PTY. LIMITED CASTAWE PTY. LIMITED RHIVAN PTY LTD CASTEVE PTY. LIMITED CASTMEX PTY. LIMITED MECELEC SERVICES PTY LTD PHLO PTY. LIMITED COPSLEY ENTERPRISES PTY. LTD. G.B. COMMUNICATIONS PTY. LTD. ASIA PACIFIC PATHOLOGY PTY. LTD. AMSON INVESTMENTS PTY. LTD. W.C. & L.A. PERRY PTY. LTD. R.A. & C.M. PERT PTY. LTD. WESTRENT PROPERTIES PTY. LTD. AQCONSULT PTY LTD POOL WATER QUALITY PTY LTD NEVWROE PTY. LTD. HELICOPTER WINDOWS PTY LTD LONE STAR PETROLEUM SERVICES PTY LTD AUSTRALIAN NICKEL PTY LTD