---

VAM INVESTMENTS PTY. LIMITED NABONE PTY. LIMITED TAI TRADING COMPANY PTY. LTD. MACSENSE AUSTRALIA PTY LTD AUSBAKE (W.A.) PTY LTD STANTON NOMINEES PROPRIETARY LIMITED PRUDENTIAL REAL ESTATE SERVICES PTY LIMITED E. & V. INVESTMENTS PTY. LTD. J.F. & A.L. PEGLER PTY. LTD. T & Z PTY LTD AMONIQUE HOLDINGS PTY. LTD. WANDOO OILFIELD DRILLING SERVICES PTY LTD LEVENDALE RIDGE PTY. LTD. EPA GROUP PTY LTD WITHYHAM NOMINEES PTY. LTD. BRESAGEN XENOGRAFT MARKETING PTY. LTD. KENNETH O'BRIEN PTY LTD SUPER NOSTRUM PTY LIMITED BURFIELD HOLDINGS PTY LTD PANGAEA PTY LTD