Unaudited results for the six months ended 30 June 2021 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") UNAUDITED RESULTS FOR THE SIX MONTHS ENDED 30 June 2021 Dollar amounts presented herein are in United States Dollars. SALIENT FEATURES Six months Six months ended ended 30 June 30 June Percentage 2021 2020 change Revenue ($'000) 63 121 46 312 36% EBITDA ($'000) (1 388) 11 396 (112%) Headline (loss)/profit ($'000) (18 483) (Loss)/earnings per share ($) (0.13) Headline (loss)/earnings per common share ($) (0.13) Net asset value per common share ($) 1.15 DECLARATION OF CASH DIVIDEND The directors have not declared an interim 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 Johanesburg 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 2021 Gross Net $'000 $'000 Net (loss)/profit attributable to common shareholders (18 917) Adjustments Loss on disposal of plant and equipment 22 17 Impairment of plant and equipment 626 480 Impairment of intangible assets - - Third party compensation received in respect of impairment of plant and equipment (82) (63) Headline earnings (18 483) Basic earnings per common share (US cents) Earnings (0.13) Headline earnings (0.13) Weighted average common shares outstanding ('000)(1) 141 015 Diluted earnings per common share (US cents) Earnings (0.13) Headline earnings (0.13) Weighted average common shares outstanding for diluted earnings ('000) (1) 141 015 (1) The common stock outstanding as of June 30, 2021 is as reported in the quarterly report on Form 10-Q for the period ending June 30, 2021, filed with the Securities and Exchange Commission on August 16, 2021. 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 stockholders should be based on information contained in the full announcement, accessible from 16 August 2021, via the JSE link https://senspdf.jse.co.za/documents/2021/jse/isse/MKRE/MKRQ2.pdf or on the SEC's website at https://www.sec.gov/Archives/edgar/data/1826600/000119312521247857/0001193125-21-247857-index.htm. The full announcement is also available at the Company's registered office, the offices of the sponsor and may be requested at investor@montaukenergy.com or MNTK@GatewayIR.com free of charge to investors and/or shareholders, during office hours (09:00 - 17:00) from Mondays to Fridays. 17 August 2021 Directors: JA Copelyn (Chairman)*###, SF McClain (Chief Executive Officer)#, MH Ahmed*, TG Govender*###, MA Jacobson*##, BS Raynor*#, Y Shaik*### *Non-executive; #United States of America; ##Australia; ### Republic of South Africa Company secretary: J Ciroli Registered office: 680 Andersen Drive, 5th Floor, Pittsburgh, PA 15220 Website: https://ir.montaukrenewables.com/ Sponsor: Investec Bank Limited Date: 17-08-2021 04:22:00 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.