Mining giants BHP, Rio Tinto drag down ASX as commodities retreat sharply

Six of the 11 sectors gained on a mixed day of trading. NewsWire / Max Mason-HubersSix of the 11 sectors gained on a mixed day of trading. Camera Icon Six of the 11 sectors gained on a mixed day of trading. BHP shares fell 1.82 per cent to $50.57, Fortescue retreated 2.73 per cent to $21 and Rio Tinto declined 3.50 per cent to $151.55. Sector heavyweight CSL shares added 1.13, ResMed jumped 3.13 per cent to $3754 and Pro Medicus added 1.34 per cent to $184.12.