Brimstone Investment Corporation Limited (Incorporated in the Republic of South Africa) Registration number 1995/010442/06 Share Code: BRT ISIN: ZAE000015277 Share Code: BRN ISIN: ZAE000015285 ("Brimstone" or the “Company”) Voluntary Quarterly Intrinsic Net Asset Value (“NAV”) disclosure A full analysis of the Intrinsic NAV, together with applicable explanations for the quarter ended 30 September 2022 is set out below. Summary Change 30 September 31 December 31 December 31 December 31 December Dec 2021 to Sep 2022 2022 2021 2020 2019 2018 (%) Intrinsic NAV of Brimstone (Rm) (11.6) 2 879.0 3 255.6 3 284.8 3 349.3 3 899.6 Book NAV (Rm) 13.4 3 315.8 2 924.4 2 491.3 2 516.2 2 713.4 Intrinsic NAV per share (cents) ¹ (11.7) 1 160.5 1 314.0 1 299.3 1 419.3 1 615.1 Fully diluted Intrinsic NAV per share (cents) ¹ (11.8) 1 139.9 1 292.6 1 282.7 1 410.3 1 598.8 Book NAV per share (cents) 13.2 1 336.5 1 180.3 985.5 1 066.3 1 123.8 Market price per share (cents) Ordinary shares 10.0 693 630 581 765 1 050 ‘N’ Ordinary shares (8.3) 595 649 650 775 949 Discount to Intrinsic NAV Ordinary shares 40.3% 52.1% 55.3% 46.1% 35.0% ‘N’ Ordinary shares 48.7% 50.6% 50.0% 45.4% 41.2% Intrinsic NAV analysis by asset An analysis of the Intrinsic NAV of Brimstone as at 30 September 2022 is set out below, including the valuation basis of each asset. Where applicable, Intrinsic NAV is net of ring-fenced debt and potential CGT relating to that asset. Asset % Closing Closing Valuation basis Gross value Debt CGT Sep 2022 Sep 2022 Gross Dec 2021 Dec 2021 Increase / held share price share (R'000) (R'000) (R'000) Intrinsic Intrinsic portfolio Intrinsic Intrinsic (Decrease) at 30 Sep price at NAV NAV per weighting NAV NAV per (%) 2022 31 Dec (R'000) share (%) (R'000) share (R) 2021 (cents) (cents) (R) Oceana² 25.1% 53.26 55.54 Market value per share 1 743 420 - - 1 743 420 702.7 34.1 1 812 110 731.4 (3.9) Sea Harvest ² 53.4% 12.00 13.80 Market value per share 1 914 378 - - 1 914 378 771.6 37.4 2 201 210 888.4 (13.1) Equites 1.8% 16.10 22.99 Market value per share 224 734 - (9 099) 215 635 86.9 4.4 289 930 117.0 (25.7) Phuthuma Nathi 2.8% 137.00 134.95 Market value per share 259 673 - (4 958) 254 715 102.7 5.1 251 517 101.5 1.2 Stadio 5.1% 3.81 3.75 Market value per share 165 983 - (3 201) 162 782 65.6 3.2 160 635 64.8 1.2 MTN Zakhele Futhi 1.5% 22.62 31.00 Market value per share 41 141 - - 41 141 16.6 0.8 56 383 22.8 (27.2) Milpark 12.8% - - Market approach 97 221 - (5 545) 91 676 37.0 1.9 85 771 34.6 6.9 Investment property 100.0% - - Market approach 65 000 - - 65 000 26.2 1.3 57 500 23.2 12.9 FPG Property Fund 10.2% - - Book value 301 670 - (30 640) 271 030 109.2 5.9 207 984 83.9 30.2 Aon Re Africa 18.0% - - PE valuation 78 086 - (15 143) 62 943 25.4 1.5 56 035 22.6 12.4 Obsidian 70.0% - - Book value 77 189 - (8 573) 68 616 27.7 1.5 64 241 25.9 6.9 SAED 25.0% - - Book value 61 385 - - 61 385 24.7 1.2 60 231 24.3 1.6 Other investments, Various - - Valuation 54 650 - 14 733 69 383 28.0 1.1 84 210 34.0 (17.6) assets & liabilities Cash / (Net debt) 100.0% - - Book value 27 486 (2 170 582) - (2 143 096) (863.8) 0.6 (2 132 147) (860.5) 0.4 5 112 016 (2 170 582) (62 426) 2 879 008 1 161.0 100.0 3 255 610 1 314.0 (11.7) Intrinsic NAV per share (cents) 2 061 (875) (25) 1 160 Fully diluted Intrinsic NAV per share (cents) 2 024 (859) (25) 1 140 Notes: 1. Based on 248 million shares (December 2021: 248 million shares) in issue, net of treasury shares as calculated below: Number of shares in issue Fully diluted number of shares Gross number of shares in issue 264 850 108 264 850 108 Treasury shares (fully diluted number is net of notionally realised unvested FSPs) (16 758 808) (12 280 092) Net shares in issue for Intrinsic NAV purposes 248 091 300 252 570 016 2. No CGT provided on shareholding in Oceana and Sea Harvest due to potential use of the corporate relief provisions of the Income Tax Act. The Intrinsic NAV information presented has been prepared on a basis consistent with that used in the integrated report for the year ended 31 December 2021, which is available on the Company’s website at www.brimstone.co.za. The above information is the responsibility of the directors and has not been reviewed or reported on by the Company’s auditors. 14 December 2022 Sponsor Nedbank Corporate and Investment Banking, a division of Nedbank Limited