---

PERERA SURGICAL & MEDICAL SERVICES PTY. LTD. RAPID SPARKS PTY. LIMITED OGT SOLUTIONS PTY. LTD. LOCKLEYS SYSTEMS PTY. LTD. KHARTRON ENGINEERING PTY. LTD. RUSSELL FULTON PTY. LTD. SOFICON PTY. LTD. OPEX CORPORATION PTY LTD ASSET BUILDING INVESTMENTS PTY. LTD. R.J. SOUTTER TRANSPORT PTY. LTD. D.G. WILSON PTY. LTD. BELRIDGE INVESTMENTS PTY. LTD. GOULD SUPERANNUATION PTY. LTD. ITL CORPORATION PTY. LTD. RIFT HOLDINGS PTY LTD ARASTRA EXPLORATION PTY LTD VARNEY MCLEAN PTY. LTD. AUSTRALIAN FUTURE COMMUNICATIONS PTY LTD WESTBOOK INVESTMENTS PTY LTD KUNARA (QLD) PTY LTD