Morcombe has over 25 years' experience in the mining industry, particularly with tier one mines in Africa, and was most recently COO of Centamin.
He has also held senior roles at other Africa-focused mining companies, including COO at Acacia Mining, senior vice president of planning and business development at AngloGold Ashanti and vice president and head of operations at Gold Fields' South Deep gold mine.
Morcombe will join on May 6, with Langford departing at the end of February.