Listed on the Toronto Stock Exchange, the firm owns most of the Copper Mountain mine. Located in southern British Columbia, the mine produces an average of 100 million pounds of copper equivalent per year.
In a cyber incident notice on its website, CMMC announced the shutdown of some of its systems, including the mill, after falling victim to a ransomware attack on December 27, 2022.
“The company has isolated operations, switched to manual processes, where possible, and the mill has been preventatively shutdown to determine the effect on its control system,” CMMC said.
