In compliance with paragraph 3.59 of the Listings Requirements of the JSE Limited, shareholders are advised that Dr. Mandla Gantsho intends to retire as Chairman of the board to devote more time to his personal business interests. Dr. Gantsho will step down from the Board, including from the Board Committees on which he serves, with effect from the end of the Company's Annual General Meeting to be held on 14 May 2021. Dr. Gantsho also chairs the Nominations and Governance Committee and is a member of the Human Resources and Remuneration Committee and the Strategy and Investment Committee.