The stock ignored news from Zambia where President Edgar Lungu said he would not allow the firm to lay off workers at its Mopani Copper Mine, as it mothballs it for 18 months.
Five days of selling drops gold price nearly 6% ahead of crucial US jobs numbers on Friday as large futures investors liquidate massive bullish positions.
The drastic move makes of Codelco the mining company that has let go the highest amount of workers in Chile since copper prices began their decline over a year ago.