"Past third party production at the Kalengwa open pit mine estimated at 1.9 million tonnes grading at 9.44% Cu and 50g/t Ag."
http://www.investegate.co.uk/bezant-resources-plc/rns/kalengwa-exploration-project---30--acquisition/202004270700088783K/
http://www.bezantresources.com/operations/zambia
