Master Drilling Group Limited (Incorporated in the Republic of South Africa) (Registration number 2011/008265/06) JSE share code: MDI ISIN: ZAE000171948 (“Master Drilling” or the “Company”) CHANGES TO THE BOARD In compliance with paragraph 3.59 of the Listings Requirements of the JSE Limited, the board of directors of Master Drilling hereby notifies its shareholders of the following: • Gareth Robert Sheppard (Sheppard) has with effect from 24 March 2023 resigned as an executive director of the Company. His resignation is to enable him to devote a greater portion of his time and attention towards management of the Company’s international subsidiaries where he has and will continue to have responsibility and which account for a significant portion of the group’s activities. To this end Sheppard will continue to serve as a director of Master Drilling subsidiary Master Drilling International Limited. In addition, and with effect from Sheppard’s aforesaid resignation, he has been appointed as an alternate director to Daniel Coenraad Pretorius on the board of the Company. • Fred George Dixon, previously an alternate director to Sheppard, has been appointed as alternate director to Master Drilling executive director Barend Jacobus Jordaan on the board of the Company. The board wishes to thank Sheppard for his valuable contribution to the board over many years, and look forward to his continued involvement with Master Drilling Group Fochville 24 March 2023 Sponsor Investec Bank Limited