Withdrawal of and modifications to certain ordinary resolutions proposed for adoption at the Company's AGM 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”) WITHDRAWAL OF AND MODIFICATIONS TO CERTAIN ORDINARY RESOLUTIONS PROPOSED FOR ADOPTION AT THE COMPANY’S ANNUAL GENERAL MEETING (“AGM”) SCHEDULED FOR 14 JUNE 2021 Master Drilling shareholders are referred to the Notice of AGM (“the Notice”) distributed to shareholders and as announced on SENS on 28 April 2021. With regard to the AGM to be held at 09h00 on Monday, 14 June 2021, the Company hereby gives notice of the amendments as detailed below to ordinary resolutions numbers 2.3, 2.4 and 4.4 proposed in the Notice, dealing with the re-election of non- executive directors retiring by rotation, with not filling any vacancies on the Board resulting from the non-election of any retiring non-executive director, and with the re-election of OM Matloa as a member of the audit committee. Amendments: 1. The deletion of ordinary resolution number 2.3. The retiring directors are Mr HR van der Merwe, Mr AW Brink and Ms OM Matloa. The retiring directors that are proposed for re-election by the Board are Mr HR van der Merwe and Mr AW Brink. 2. The amendment of ordinary resolution number 2.4 by renumbering same as ordinary resolution number 2.3 and replacing it with the following resolution: “Resolved, in the event of a vacancy on the Board arising from a retiring director not being re-elected at this AGM, NOT to fill such vacancy by way of shareholders’ resolution at this Annual General Meeting or any adjournment thereof.” 3. The deletion of ordinary resolution 4.4. consequential on the deletion of ordinary resolution 2.3. The amended Notice of AGM and Form of Proxy is available on the Company’s website www.masterdrilling.com. Fochville 26 May 2021 Sponsor Investec Bank Limited Date: 26-05-2021 02:07:00 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.