The company named James Jilani as managing director of West and Central Africa sales.
Richard Moore, STG Aerospace CEO said the new appointments will help the business expand across Africa because of the experience they possess.
Former MTC Aero director Tony Moss will join STG as South and East Africa manager and Ali Saidane will be the head of sales oversight in North Africa.
For its Egypt operations, STG has named Osman Handoussa as lead.
Handoussa will be supported by general manager Tamer Lofty and chairman advisor Samia Metwall.