Rio Tinto's copper and aluminium production dropped due to unexpected shutdowns during the third quarter.
The company's Yarwun alumina refinery in Australia shut over the third quarter for 35 days; the shutdown has since ended.Total alumina production was down by 7% during the third quarter at 1.8 million tonnes.At $278.25 per tonne, the Fastmarkets Alumina index, fob Australia has sunk to around two-year lows amid renewed supply from Hydro's Alunorte plant in Brazil.The shutdown meant that Rio ended up shipping...