The group has informed its respective labour unions that it is contemplating retrenchments as the proposed restructure could lead to about 300 jobs being lost.
A process of consultation will start this month with union representatives and employees.
“We are doing everything possible to limit the impact on our employees and the consultation process will examine all options," said Sipho Nkosi, Exxaro’s chief executive officer.
"However, the future sustainability of the group remains a pressing need in the context of the demanding business environment in which we operate and we must ensure we have a streamlined and competitive current business to meet our growth aspirations.”
Exxaro currently employs about 10,500 people and has interests in the coal, mineral sands, base metals, industrial minerals and iron ore commodities.