The openpit mine at Oyu Tolgoi, in Mongolia, produced significantly less copper and gold during the three months ended September, but Vancouver-headquartered Turquoise Hill reported on Tuesday that the quarter was a strong one from a production and safety perspective, while announcing an increased 2019 gold production guidance.
Compared with the third quarter of 2018, copper concentrate production fell by 28% to 28 400 t, gold production decreased by 66.8% to 28 600 oz and silver output dropped 17% to 191 000 oz.