MONTAUK RENEWABLES INC - Montauk Renewables to Reschedule Third Quarter 2026 Earnings Release and Conference Call

Montauk Renewables to Reschedule Third Quarter 2026 Earnings Release and Conference Call

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 to Reschedule Third Quarter 2026 Earnings Release and Conference Call

PITTSBURGH – November 9, 2026 – Montauk Renewables, Inc. ("Montauk” or “the Company")
(NASDAQ: MNTK), a renewable energy company specializing in the management, recovery and
conversion of biogas into renewable natural gas (“RNG”), today announced that it will reschedule its
third quarter 2026 earnings release and related conference call due to a delay in finalizing its Form 10-Q
for the quarter ended September 30, 2026.

Montauk intends to file a Form 12b-25 with the Securities and Exchange Commission (SEC) to extend the
filing deadline for its Form 10-Q, until Monday, November 16, 2026. As long as the Company files the
Form 10-Q within the five-day grace period, the report will be deemed to have been filed timely by the
SEC.

Montauk anticipates filing its Form 10-Q within the extended grace period and expects to publish its
third quarter 2026 earnings release and hold its quarterly conference call as soon as practicable on or
after the date it files its Form 10-Q.

About Montauk Renewables, Inc.

Montauk Renewables, Inc. (NASDAQ: MNTK) is a renewable energy company specializing in the
management, recovery and conversion of biogas into RNG. The Company captures methane, preventing
it from being released into the atmosphere, and converts it into either RNG or electrical power for the
electrical grid (“Renewable Electricity”). The Company, headquartered in Pittsburgh, Pennsylvania,
develops, operates and manages landfill methane-fueled renewable energy projects. The Company has
operations at 13 projects and ongoing development projects located in California, Idaho, Ohio,
Oklahoma, Pennsylvania, North Carolina, and Texas. The Company sells RNG and Renewable Electricity,
taking advantage of Environmental Attribute premiums available under federal and state policies that
incentivize their use. For more information, visit https://ir.montaukrenewables.com.

Company Contact:

John Ciroli
Chief Legal Officer (CLO) & Secretary
investors@montaukenergy.com
(412) 747-8700

Investor Relations Contact:

Georg Venturatos
Gateway Group
MNTK@Gateway-grp.com
(949) 574-3860

Pittsburgh, PA USA
10 November 2026

Sponsor
Investec Bank Limited
Date: 10/11/2026 07:05:00
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