Australian mining firm OZ Minerals has signed a terms sheet with Havilah Resources to option the latter’s Kalkaroo copper project in South Australia for $143.8m (A$205m). During an 18-month period, OZ Minerals will assess the project potential and the option to purchase the Kalkaroo project, which is potentially one of the largest undeveloped open pit copper-gold deposits in Australia. The study will focus on exploring new resources while optimising project, scale and value. OZ Minerals managing director and CEO Andrew Cole said: “The agreement provides a low-cost option and flexibility to study the Kalkaroo project ... (full story)