Aim-listed Bezant Resources on Tuesday said that an independent study had found that the Mankayan copper/gold porphyry supported different robust routes for the future development of its Philippines-based project. This included, for the first time, a sub-level caving (SLC) ‘stepping stone’ scenario, with two main block caving (BC) routes identified for progression, from a total of 11 assessed scenarios. Both supported an average production grade of more than 0.64% copper equivalent.