Exhibit 99.1
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 year ended 31 December 2025
Dollar amounts presented herein are in United States Dollars
SALIENT FEATURES
| 2025 | 2024 | Percentage change | ||||||||||||||
| Revenue | ($‘000) | 176 382 | 175 736 | 0.4 | % | |||||||||||
| EBITDA | ($‘000) | 32 301 | 40 969 | (21.2 | %) | |||||||||||
| Headline earnings | ($‘000) | 4 358 | 11 002 | (60.4 | %) | |||||||||||
| Earnings per share | ($) | 0.01 | 0.07 | (85.7 | %) | |||||||||||
| Headline earnings per common share | ($) | 0.03 | 0.08 | (62.5 | %) | |||||||||||
| Net asset value per common share | ($) | 1.84 | 1.79 | 2.8 | % | |||||||||||
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
| 2025 | 2024 | |||||||||||||||
| Gross $‘000 | Net $‘000 | Gross $‘000 | Net $‘000 | |||||||||||||
| Net income attributable to common shareholders | 1 748 | 9 734 | ||||||||||||||
| Adjustments | ||||||||||||||||
| Loss / (Profit) on disposal of plant and Equipment | 36 | 28 | (99 | ) | (79 | ) | ||||||||||
| Impairment of plant and equipment | 3 231 | 2 582 | 1 586 | 1 268 | ||||||||||||
| Gain on disposal of intangible assets | 99 | 79 | ||||||||||||||
| Headline earnings | 4 358 | 11 002 | ||||||||||||||
| Basic and headline earnings per common share (US Dollars) | ||||||||||||||||
| Earnings | 0.01 | 0.07 | ||||||||||||||
| Headline earnings (2) | 0.03 | 0.08 | ||||||||||||||
| Weighted-average common shares outstanding (‘000)(1) | 143 020 | 142 279 | ||||||||||||||
| Diluted earnings per common share (US Dollars) | ||||||||||||||||
| Earnings (2) | 0.01 | 0.07 | ||||||||||||||
| Headline earnings (2) | 0.03 | 0.08 | ||||||||||||||
| Weighted-average common shares outstanding for diluted (‘000) (2) | 143 076 | 142 397 | ||||||||||||||
| (1) | The common share outstanding as of December 31, 2025 is as reported in the annual report of Form 10-K for the fiscal year ended December 31, 2025, filed with the Securities and Exchange Commission on March 11, 2026. |
| (2) | The December 31, 2025 and 2024 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 has been prepared in compliance with the JSE Limited Listings Requirements.
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 March 12, 2026, via the JSE link (https://senspdf.jse.co.za/documents/20265/jse/isse/MKRE/YE254.pdf) or on the SEC’s website at
https://www.sec.gov/ix?doc=/Archives/edgar/data/0001826600/000119312526102364/mntk-20251231.htm. The full announcement is also available on the Company’s website https://ir.montaukrenewables.com/” to comply with paragraph 6.35(c)(i) of the JSE Listings Requirements.
March 12, 2026
Directors: JA Copelyn (Chairman)*###, SF McClain (Chief Executive Officer)#,
MH Ahmed*###, TG Govender*###, J Cunningham*#, Y Shaik* ###
| * | Non-executive; #United States of America; ### Republic of South Africa |
Company secretary: J Ciroli
Registered office: 5313 Campbells Run Road, Suite 200, Pittsburgh, PA 15205
Website: https://ir.montaukrenewables.com/
Montauk Renewables is primary listed on the Nasdaq and secondary listed on the JSE.
Sponsor:
Investec Bank Limited