Audited Consolidated Results for the fiscal year ended 31 December 2022 MONTAUK RENEWABLES, INC. Incorporated in the United States of America Company number: 85-3189583 NASDAQ share code: MNTK JSE share code: MKR ISIN: US61218C1036 ("Montauk Renewables" or the "Company") AUDITED CONSOLIDATED RESULTS For the fiscal year ended 31 December 2022 SALIENT FEATURES Percentage 2022 2021 change Revenue ($'000) 205 559 148 127 39% EBITDA ($'000) 65 734 25 430 158% Headline earnings / (loss) ($'000) 38 698 (2 938) 1 417% Basic earnings / (loss) per share ($) 0.25 (0.03) 876% Headline earnings / (loss) per common share ($) 0.27 (0.02) 1 405% Net asset value per common share ($) 1.58 1.29 23% DECLARATION OF CASH DIVIDEND The directors have resolved not to declare a final dividend to focus financial resources on the continued development of the Company's operations portfolio. USE OF NON-GAAP MEASURES This report was prepared for the purpose of complying with the reporting requirements of the Johannesburg Stock Exchange and includes certain non-GAAP measures, such as headline earnings and headline earnings per common share, and related reconciliations. Reconciliation of headline earnings / (loss) 2022 2021 Gross Net Gross Net $'000 $'000 $'000 $'000 Net income /(loss) attributable to common shareholders 35 194 (4 528) Adjustments Loss on disposal of plant and equipment 78 63 822 649 Impairment of plant and equipment 4 781 3 891 1 191 941 Gain on disposal of intangible assets (311) (253) - - Proceeds on insurance claims (313) (255) - - Impairment of intangible assets 71 58 - - Headline earnings/(loss) 38 698 (2 938) Basic and headline (loss)/earnings per common share (US Dollars) Earnings/(loss) 0.25 (0.03) Headline earnings/(loss) (2) 0.27 (0.02) Weighted-average common shares outstanding ('000)(1) 141 239 141 015 Diluted earnings/(loss) per common share (US Dollars) Earnings/(loss) (2) 0.25 (0.03) Headline earnings/(loss) (2) 0.27 (0.03) Weighted-average common shares outstanding for diluted ('000) (2) 142 579 144 913 (1) The common share outstanding as of December 31, 2022 is as reported in the annual report of Form 10-K for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission on March 16, 2023. (2) The December 31, 2022 and 2021 per share indicators were determined by applying International Financial Reporting Standards. DIRECTORS' STATEMENT This short-form announcement is the responsibility of the Company’s Board of Directors and is a summary of the information in the detailed financial results announcement. The financial information is only a summary and does not contain full details of the financial results. Any investment decisions by investors and/or shareholders should be based on information contained in the full announcement, accessible from 16 March 2023, via the JSE link https://senspdf.jse.co.za/documents/2023/jse/isse/MKRE/YE22.pdf or on the SEC’s website at https://www.sec.gov/ix?doc=/Archives/edgar/data/0001826600/000119312523072678/d376707d10k.htm . The full announcement is also available at the Company’s registered office, the offices of the sponsor and may be requested at info@montaukenergy.com free of charge to investors and/or shareholders, during office hours (09:00 - 17:00) from Mondays to Fridays. 17 March 2023 Directors: JA Copelyn (Chairman)*###, SF McClain (Chief Executive Officer)#, MH Ahmed*, TG Govender*###, MA Jacobson*##, J Cunningham*# , Y Shaik* ### *Non-executive; #United States of America; ##Australia; ### Republic of South Africa Company secretary: J Ciroli Registered office: 5313 Campbells Run Road, Suite 200, Pittsburgh, PA 15205 Website: https://ir.montaukrenewables.com/ Sponsor: Investec Bank Limited Date: 17-03-2023 09:00:00 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.