Fort Lauderdale, Florida--(Newsfile Corp. - December 22, 2025) - ZEFIRO METHANE CORP. (Cboe Canada: ZEFI) (FSE: Y6B) (OTCQB US: ZEFIF) (the "Company", "Zefiro", or "ZEFI") is pleased to announce that its 2025 Year-End Letter to Shareholders has now been published and is available for viewing on Zefiro's website at the following link: https://zefiromethane.com/year-end-2025-shareholder-letter/

Please Note: If no link is visible above, please access the version of this press release on Zefiro's website or on SEDAR+.

The letter provides a high-level overview of happenings within the Zefiro organization in 2025, including its continued growth trajectory following the turnaround resulting from the management transition which took place in the month of June 2025. The first full fiscal quarter under this administration (three-month period ended September 30, 2025) yielded USD $12.1 million in revenue with a 29.5% reduction in expenses, availing free cash flow to fund core business operations and settle outstanding debts to clean up the Company's balance sheet.

As announced in a press release last week, P&G is just steps away from beginning a project in Louisiana that is valued at more than USD $5 million, and will be carried out until approximately March of 2026. The winter months are typically a slow time of year for environmental remediation work, and by strategically ensuring P&G's crews and equipment are utilized year-round, Zefiro is able to further enhance its overall yield in the environmental services category.

Zefiro Senior VP of Corporate Development Luke Plants, who also heads P&G as its CEO, commented, "As Zefiro's focus reverts to putting a greater emphasis on core operations that have a proven ability to drive consistent revenue, I am thrilled to be taking an active role as part of the Company's management team alongside CEO Catherine Flax. Being communicative with shareholders is something we're taking seriously… and we felt that as we end off an eventful 2025 with a bright year ahead of us in 2026, it would be a great idea to share our in-depth commentary tailored to the investor perspective. Right now we are all about tangible and measurable results, even if that means the overall story has become a bit more simplified. We thank our shareholders for their continued support and confidence, and hope that everybody enjoys a happy and safe holiday season as we prepare to ring in 2026, which we hope to make Zefiro's very best year yet!"

About Zefiro Methane Corp.

Zefiro is an Environmental Services Company, specializing in methane abatement. Zefiro strives to be a key commercial force towards Active Sustainability. Leveraging decades of operational expertise, Zefiro is building a new toolkit to clean up air, land, and water sources directly impacted by methane leaks. The Company has built a fully integrated ground operation driven by an innovative monetization solution for the emerging methane abatement marketplace. As an originator of high-quality U.S.-based methane offsets, Zefiro aims to generate long-term economic, environmental, and social returns.

On behalf of the Board of Directors of the Company,

ZEFIRO METHANE CORP.

Catherine Flax

Chief Executive Officer

Forward-Looking Statements

This news release may contain forward-looking statements within the meaning of applicable securities laws, including, U.S. and Canadian securities regulations and laws. These forward-looking statements are based on current expectations, estimates, projections, beliefs, and assumptions of management, including those of Zefiro Methane Corp., as of the date of this news release. Forward-looking statements typically include words such as "anticipates," "outlook", "seeks", "expects," "intends," "plans," "believes," "estimates," "may," "will," "should," "could," "would," "continue," "forecast," "potential," "targets," "goals," "vision," "strategy," and similar expressions or variations thereof. These statements may relate to, among other things, the Company's operational outlook, expansion plans, future direction, strategic initiatives, business plans, regulatory environment, growth prospects, pipeline, financial performance, timing and scope of projects, future market conditions, funding and capital requirements, partnerships, or other business developments. The forward-looking information reflects management's current expectations based on information currently available and are subject to a number of risks and uncertainties that may cause outcomes to differ materially from those discussed in the forward-looking information. Although the Company believes that the assumptions and factors used in preparing the forward-looking information are reasonable, undue reliance should not be placed on such information and no assurance can be given that such events will occur in the disclosed timeframes or at all.

In addition, any statements made in this news release are not guarantees of future performance and are subject to a number of known and unknown risks, uncertainties, and other factors, many of which are outside the Company's control, that could cause actual results or outcomes to differ materially from those expressed or implied by such forward-looking statements. These factors include, but are not limited to: fluctuations in commodity prices, changes in regulatory or political environments, operational risks, financing risks, market demand for emissions reduction or environmental services, delays in project execution, reliance on third-party partners or vendors, competition, and the overall economic environment. For a more detailed discussion of these factors and other risks, see the section entitled "Financial Risks" in Zefiro's management's discussion and analysis for the year ended June 30, 2025 and "Risk Factors" in Zefiro's annual information form for the year ended June 30, 2025, each of which is available under Zefiro's profile on SEDAR+ at www.sedarplus.com.

Factors that could cause actual results or events to differ materially from current expectations include, but are not limited to: (i) adverse general market and economic conditions; (ii) changes to and price and volume volatility in the carbon market; (iii) changes to the regulatory landscape and global policies applicable to the Company's business; (iv) failure to obtain all necessary regulatory approvals; and (v) other risk factors set forth in its most recent Prospectus under the heading "Risk Factors". The Company operates in a rapidly evolving environment where technologies are in the early stage of adoption. New risk factors emerge from time to time, and it is impossible for the Company's management to predict all risk factors, nor can the Company assess the impact of all factors on Company's business or the extent to which any factor, or combination of factors, may cause actual results to differ from those contained in any forward-looking information. Forward-looking information in this news release is based on the opinions and assumptions of management considered reasonable as of the date hereof, including, but not limited to, the assumption that general business and economic conditions will not change in a materially adverse manner. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information. The forward-looking information included in this news release is made as of the date of this news release and the Company expressly disclaims any intention or obligation to update or revise any forward-looking information whether as a result of new information, future events or otherwise, except as required by applicable law.

Zefiro Methane Corp. does not undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on these forward-looking statements.

Also, this news release may include market and industry data obtained from various publicly available sources and other sources believed by the Company to be true. Although the Company believes it to be reliable, the Company has not independently verified any of the data from third-party sources referred to in this presentation or analyzed or verified the underlying reports relied upon or referred to by such sources, or ascertained the underlying assumptions relied upon by such sources. The Company does not make any representation as to the accuracy of such information.

This news release is for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy any securities of Zefiro Methane Corp., nor shall it form the basis of or be relied upon in connection with any investment decision.

Statement Regarding Third-Party Investor Relations Firms

Disclosures relating to investor relations firms retained by Zefiro Methane Corp. can be found under the Company's profile on SEDAR+ at www.sedarplus.ca/.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/278827