George has more than 30 years' experience in mining and engineering, plant design and feasibility work, and spent over a decade in production management roles at a number of Anglo's Africa operations.
He was also previously chairman and CEO of Angola-based diamond exploration company Xceldiam, which was bought by Petra Diamonds in 2007.
George's appointment comes ahead of ASX-listed Pensana's (ASX:PM8) planned listing on the London Stock Exchange's main board by the end of 2019.