Mining firms in Chile, the world’s No.1 copper producer, warned that costs could rise as labor unions and vendors also try to cash in on the trend.

KGHM sees copper demand rising amid green energy projects - CEO.

Company partially suspended operations at its Oktyabrsky and Taimyrsky mines in Siberia because it had detected an inflow of water underground.

High copper prices could give unionized workers leverage ahead of upcoming labor negotiations.

Natalie Scott-Gray, a senior metals analyst at StoneX, forecasts copper demand in 2021 will rise by about 5% year-on-year.

Codelco warns that the spike in prices could drive up its costs.

Country aims to produce more than 900,000 tonnes of copper in 2021.

Codelco vice president of sales said the growing expectations would likely spur goods and service providers to hike prices.