Form 8-K Current Report 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”) FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934, Montauk Renewables stockholders are advised that a Form 8-K has been filed with the SEC. The purpose of the Form 8-K is to inform shareholders that on March 28, 2023, Mr. Michael A. Jacobson provided notice to Montauk Renewables, Inc. (the “Company”) that he is resigning from the Company’s Board of Directors (the “Board”) effective March 30, 2023. Mr. Jacobson did not advise the Company of any disagreement with the Board or Company on any matters relating to the Company’s operations, policies or practices. On March 30, 2023, the Board appointed current director Jennifer Cunningham to the Audit Committee of the Board. The Board has determined that Ms. Cunningham is independent under the director independence standards established by the NASDAQ listing standards. A copy of the filings can be found at: https://www.sec.gov/ix?doc=/Archives/edgar/data/1826600/000119312523088034/d475594d8k.htm Montauk Renewables is primary listed on the Nasdaq and secondary listed on the JSE. Pittsburgh, PA USA 03 April 2023 Sponsor Investec Bank Limited Date: 03-04-2023 09:43:00 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.