Bestobe gold mine | Wood MackenzieJun 12, 2017 . Bestobe is an open pit and underground operation. The processing plant comprises a gravity, flotation and CIP circuit. In February 2013, Polyus sold .bibiani gold mine wood mackenzie,Chirano gold mine | Wood MackenzieDec 22, 2017 . The mine is owned and operated by Kinross who acquired the mine in 2010. Production is from a combination of open pit and underground mines. The ore .