Changes to the Board and Appointment of a New CEO Insimbi Refractory and Alloy Supplies Limited (Incorporated in the Republic of South Africa) (Registration number: 2002/029821/06) Share code: ISB ISIN: ZAE000116828 (“Insimbi” or “the Company” or “Group”) CHANGES TO THE BOARD AND APPOINTMENT OF A NEW CEO In compliance with paragraph 3.59 of the Listings Requirements of the JSE Limited (“the Listings Requirements”), shareholders are notified that the board of directors of Insimbi (“the Board”) has reviewed its structure and composition in light of the substantial changes to the Company over the past year. Mr Pieter Schutte, the Chief Executive Officer (“CEO”) of Insimbi has advised the Board of his retirement effective 30 November 2017. During his remaining tenure to 30 November, Pieter will be focusing on the consolidation of Insimbi’s position as a leading refractory supplier and will be involved in the recruitment, induction and mentorship of skilled technical people to ensure that the refractory segment of the Company continues to be a leader in its field in the future. Pieter has agreed to provide consulting services as and when required beyond his official retirement on 30 November 2017. The Board is pleased to announce the appointment of Mr Fred Botha as CEO of Insimbi effective 1 June 2017. Pieter and Fred have worked closely together over the 9 years since the IPO in March 2008 and the transition is expected to be seamless. Fred is a Chartered Accountant and joined Insimbi in 2002 as Group Commercial Director and assumed the role of Financial Director in 2014. He has 15 years’ tenure with the Group and has been instrumental in the expansionary strategy including the IPO in 2008 and was more recently the driving force behind the conclusion of the acquisition of the Amalgamated Metals group of companies in 2016. The Board has also considered the need to balance the number of executive, non-executive and independent non-executive directors in line with King III and King IV Reports (“the King requirements”) and the Listings Requirements. Mr Colin Botha, Mr Eddie Liechti and Mr Pieter Schutte have agreed to resign as executive directors of Insimbi with effect from 31 May 2017 to facilitate a board restructure in line with King requirements and corporate governance best practice. This will have no impact on their operational roles in the Company or their directorships at subsidiary company level and they will continue to provide their valuable support to the Group. Furthermore, following a review of the composition of the Board, the appointment of Mr Brian Craig as Chairperson (rather than Interim Chairperson) with effect from 22 May 2017, has been confirmed. The Board will officially thank Pieter for his service and contribution to Insimbi on his official retirement in November 2017. Johannesburg 23 May 2017 Sponsor: Bridge Capital Advisors Proprietary Limited Date: 23/05/2017 03:25:00 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.