Changes To The Board (Resignation Of Directors) 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 (RESIGNATION OF DIRECTORS) In compliance with paragraph 3.59(b) of the JSE Limited Listings Requirements, the following information is provided: Jacques Pierre de Wet (“Jacques”) and Johan Louis Botha (“Johan”) have notified the board of directors (“Board”) that they will retire at the Company’s Annual General Meeting (“AGM”) to be held on Thursday, 7th June 2018. Jacques was a member of the Board since 2012, and further served as member of the Company’s Social, Ethics and Sustainability Committee, Remuneration Committee, Risk Committee and Nominations Committee. He also chaired the Company’s Audit Committee. Johan was a member of the Board since 2015, and further served as a member of the Company’s Audit Committee. He also chaired the Company’s Risk Committee and Social, Ethics and Sustainability Committee. The Board wishes to thank Jacques and Johan for their valuable contribution to the Company during their tenure as members of the Board and its committees. The Board will propose the election of successors in the place of the retiring directors to shareholders at the Company’s AGM. Fochville 13th April 2018 Sponsor Investec Bank Limited Date: 13/04/2018 01:00:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.