Investor Presentation THIRD QUARTER 2025 RESULTS NOVEMBER 6, 2025 Cautionary Statement Regarding Forward-Looking and non-GAAP Financial Information This presentation contains "forward-looking statements" within the meaning of U.S. federal securities laws. Such statements include those relating to estimated and projected financial condition, results of operations, costs and expenditures and objectives for future operations, growth, initiatives and strategies. They also include those related to the Montauk Ag ...

Financial Performance - Total operating revenues for the three months ended June 30, 2025 were $45127 thousand, compared to $43338 thousand in 2024[7] - Net loss for the three months ended June 30, 2025 was $5487 thousand, compared to a net loss of $712 thousand in 2024[7] - Total operating expenses for the three months ended June 30, 2025 were $47482 thousand, compared to $42470 thousand in 2024[7] - For the six months ended June 30, 2025, the company's Adjusted EBITDA was $13820 thousand, compared to $16434 thousand in 2024[34] Operational Results - Renewable Natural Gas (RNG) production volumes increased by 31 MMBtu for the quarter ended June 30, 2025[8, 10] - Renewable Electricity Generation (REG) production decreased by 3 MWh for the quarter ended June 30, 2025[8] - The average realized price per RIN decreased by $070 for the quarter ended June 30, 2025[9, 10] - RINs available for sale decreased by 3549 thousand in the second quarter of 2025 compared to the second quarter of 2024[10, 15] Business Development - The Second Apex RNG Facility was commissioned in June 2025[20] - Capital investment for Montauk Ag Renewables project increased to a range of $180000 to $220000 thousand, with commercial operations expected in 2026[25] - A contract was signed to deliver 140 tons of biogenic carbon dioxide from Texas facilities under a 15-year contract with European Energy North America, with total revenues ranging from $170000 to $201000 thousand and commissioning expected in 2027[28]