Mongolia Oyu Tolgoi copper mine 2017 revenue drops 22% as construction delays weigh
Oyu Tolgoi booked $939.8 million in revenue for 2017, down from $1.2 billion the previous year.
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Poland’s KGHM targets rise in Chilean copper ore output
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World’s No. 1 copper miner Codelco made a $2.88 billion profit in 2017
Best performance in three years.
