On Wednesday, the chief executive of the Polish Copper Group (KGHM) said that the average price of copper this year is expected to range from $6,100 to $6,300 per ton.

“We are referring to the low end of analysts’estimates of copper price ranges. We think the average copper price is $6,100-6,300 per ton. I think it’s realistic. At present, copper prices are close to $6,000.