The news comes two weeks after Taseko revealed it was considering restarting the molybdenum circuit at Gibraltar mine, which has been idled since the third quarter of 2015 due to low metal prices.
Study shows the most efficient mines in top producer Chile now produce copper for less than $1 a pound after finding an additional 13% in savings this year.
"The global economy seems stuck in a subdued low-productivity growth pattern," says world's number two miner after reporting lowest earnings in 12 years.