---

PEARL GUARDIAN PTY LTD VERTIGO ENERGY PTY LTD D M M MANAGEMENT PTY LTD K & L HIGGINS INVESTMENTS PTY LTD WSP AUSTRALIA HOLDINGS PTY LTD SUB13 PROPRIETARY LIMITED JEFF STANDFIELD PTY LTD RTM PROJECTS AUSTRALIA PTY LTD K.O. FINANCE PTY LTD EXPLORE BEYOND PTY LTD NISA HOLDINGS PTY LTD DYNAMIC CONSTRUCTION & DEVELOPMENT PTY LTD DIG IT YOURSELF PTY. LTD. ZHANG BIXIA PTY LTD ZAARA PTY LTD BENEDETTO PTY LTD DJV HOLDINGS PTY. LTD. ENVIRONMENTAL WATER SOLUTIONS PTY. LTD. BSB TRADING PTY LTD BY GEORGE HOLDINGS PTY LTD