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CHALLENGER INVESTMENTS PTY. LTD. T.H.M. SERVICES PTY LTD TUART HILL TRUCK (SALES) PTY LTD THT GROUP HOLDINGS PTY LTD HARE HOLDINGS PTY LTD A.D. COOTE & CO. (SHEETMETAL) PTY LTD R.J. NULSEN PTY LTD CULBERNINE PTY LTD MID-WESTERN TELEVISION PTY LTD CRAMPHORNE PTY LTD L. & M. INVESTMENTS PTY LTD GUM PARK PTY LTD C.H.S. PTY LTD BRYLEY PTY LTD MORRELL MELROSE PTY LTD KROMANA PTY. LTD. MERIT HOLDINGS PTY LTD HOFRAD PTY LTD B. COOPER INVESTMENTS PTY LTD L.G. MANNING PTY LTD