Jackson Pinen is the most corrupt person you have mentioned here. He is not trusted at all by his own people. By the way, he is not a metallurgist as mentioned though he got his Bachelors Degree in Mineral Processing. He was only a lab technican with Ok Tedi who then became the Union President and got terminated.
Why not try other good people? It's not late for Telefomin District to come up with a better person.