Closed Period Share Repurchase Programme Insimbi Industrial Holdings Limited (Formerly 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”) CLOSED PERIOD SHARE REPURCHASE PROGRAMME Shareholders are hereby advised that Insimbi has, via its subsidiary company, granted a mandate for the repurchase of its ordinary shares during its closed period. This period commences on 1 September 2018 and terminates on or about 30 November 2018, when the Company’s interim financial results for the six months ended 31 August 2018 are scheduled to be released. In terms of the authority granted at the annual general meeting of shareholders held on Tuesday, 3 July 2018, a maximum of 3 million Insimbi shares, may be purchased for an aggregate consideration not exceeding R4 080 000. Any repurchase of shares may not be executed at a price higher than 10% above the weighted average trading price for Insimbi ordinary shares for the five business days immediately preceding the date on which any such repurchase is effected. The mandate has been entered into with one agent who has full discretion in executing the Share Repurchase Programme. Johannesburg 3 September 2018 Sponsor: Bridge Capital Advisors Proprietary Limited Date: 03/09/2018 05:00:00 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.