The copper mining process
KAZ Minerals operates six producing mines. The three mines in East Region are underground while the Bozshakol, Aktogay and Bozymchak mines are open pit. The mines generally contain sulphide ores and by-products that vary in quantities and proportions between mines. The main by-products are zinc, silver, gold and molybdenum. Each step in the copper process focuses on removing increasing amounts of unwanted materials, turning ore into concentrate and then finished metals.
Our major growth project at Aktogay commenced production of copper cathode from oxide ore via SX/EW in December 2015 and the main sulphide concentrator at Aktogay commenced commissioning in December 2016. Bozshakol commenced production of copper concentrate from sulphide ore in February 2016.
Since completion of the Group restructuring on 31 October 2014 KAZ Minerals no longer carries out smelting and refining activities internally, instead sending copper concentrate directly to export markets or to external providers of smelting and refining services in Kazakhstan.