At 10.15am AEDT, the benchmark S&P/ASX200 index was down
19.7 points, or 0.43 per cent, at 4542.4 points, while the broader All
Ordinaries index had dropped 18.3 points, or 0.4 per cent, to 4570.5 points.
BHP Billiton was down 21 cents, or 0.51 per cent at $40.61, while Rio
Tinto