MINING firm OZ Minerals is concentrating on five priority areas for test drilling within 12 kilometres of its Okvau tenement in Cambodia’s Mondulkkiri province, a second-quarter production report said. The second-quarter report saw OZ Minerals reaffirm its goal to locate a “multi-million ounce resource” in Cambodia by 2012. Ongoing test drilling at its “promising” Okvau North site has revealed 20.78 grams of gold per tonne, a report said.