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New CFO Michael Mioska joins Birchtech (NYSE: BCHT) leadership team

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8-K

Rhea-AI Filing Summary

Birchtech Corp. has appointed experienced finance executive Michael Mioska, CPA, MBA, as Chief Financial Officer. He has over 20 years of accounting, audit and financial reporting experience across the United States and Canada and has consulted for Birchtech since 2023.

Mioska has worked closely with Birchtech’s finance team, giving him deep familiarity with the company’s operations, systems and strategic priorities. Management expects his capital markets, M&A and reporting expertise to support the next phase of growth in Birchtech’s specialty activated carbon air and water treatment businesses.

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Finance experience Over 20 years Accounting, audit and financial reporting in US and Canada
Consulting start with Birchtech 2023 Began independent consulting for Birchtech
Consulting career start 2021 Independent consultant to public companies
fractional CFO financial
"I would also like to thank Fiona Fitzmaurice for her dedicated service as our fractional CFO"
A fractional CFO is a senior finance executive who works for a company on a part‑time or contract basis instead of as a full‑time employee, delivering strategic tasks such as budgeting, cash‑flow planning, financial controls, and fundraising support. For investors, a fractional CFO signals that a business can access experienced financial leadership and better financial discipline without the cost of a full‑time hire, which can reduce operational risk and improve the clarity of financial forecasts and reporting.
forward-looking statements regulatory
"content herein may contain “forward-looking statements” that are made pursuant to the Safe Harbor Provisions"
Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.
U.S. Private Securities Litigation Reform Act of 1995 regulatory
"made pursuant to the Safe Harbor Provisions of the U.S. Private Securities Litigation Reform Act of 1995"
A federal law that changed the rules for suing companies over securities claims by making it harder to bring class-action lawsuits and by protecting certain forward-looking statements. Think of it as a rulebook that raises the bar for plaintiffs to show clear evidence of wrongdoing and gives companies limited shelter for predictions, which matters to investors because it can reduce litigation risk, legal costs, and volatility tied to lawsuit headlines.
regulatory compliance financial
"experience in finance, governance, regulatory compliance and corporate audits"
Regulatory compliance is the process of ensuring that a company follows all applicable laws, rules, and standards set by government authorities or industry bodies. It is important to investors because it helps prevent legal penalties, financial losses, and reputational damage, contributing to the overall stability and trustworthiness of a business. Think of it as following the rules of a game to play fairly and avoid penalties.
PFAS technical
"specialization on removing contaminants, including ‘forever chemicals’ such as PFAS, from potable water"
PFAS are a group of human-made chemicals used in many everyday products, such as non-stick cookware, water-repellent clothing, and food packaging, because they resist heat, water, and grease. They are often called "forever chemicals" because they do not break down easily in the environment or the human body, potentially leading to health concerns. For investors, the presence of PFAS-related risks can impact companies’ reputations, legal liabilities, and future costs.

EXHIBIT 99.1

 

Birchtech Announces Appointment of Respected Finance Executive Michael Mioska as Chief Financial Officer

 

CORSICANA, Texas – May 5, 2026 – Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced the appointment of respected finance executive Michael Mioska, CPA, MBA, as Chief Financial Officer.

 

Mr. Mioska is a Chartered Professional Accountant with over 20 years of accounting, audit and financial reporting experience in a variety of industries, in both the United States and Canada. Mr. Mioska has been an independent consultant providing finance, financial reporting and M&A advisory-related services to a range of public companies since 2021, including Birchtech since 2023. Prior to that Mr. Mioska worked at a public accounting firm in Vancouver, BC providing similar finance services since 2005. As an independent consultant, Mr. Mioska has acquired considerable experience in finance, governance, regulatory compliance and corporate audits.

 

Mr. Mioska has worked closely with Birchtech’s finance function, providing him with deep familiarity with the Company’s operations, systems, and strategic priorities.

 

Mr. Mioska earned a Bachelor of Arts from the University of British Columbia and a Masters of Business Administration from Laurentian University. He is a Chartered Professional Accountant (CPA) in Canada.

 

Management Commentary

 

“We are pleased to welcome Mike to the Birchtech team as our new Chief Financial Officer,” said Richard MacPherson, President and Chief Executive Officer of Birchtech. “Mike brings the technical expertise, capital markets and M&A discipline, and reporting experience needed to support Birchtech’s next phase of growth. His deep familiarity with our business will enable a seamless transition, and his leadership will be instrumental as we scale our specialty activated carbon and water treatment platforms, execute on our growth strategy, and drive long-term value for our shareholders. I would also like to thank Fiona Fitzmaurice for her dedicated service as our fractional CFO, including her contributions through our uplist to the NYSE American.”

 

Mioska added: “I am excited to formally join Birchtech at such a pivotal moment in the Company’s growth trajectory. Birchtech has established itself as a leader in specialty activated carbon technologies and is exceptionally well positioned to capture significant opportunities across both air and water treatment markets. I look forward to working closely with Rick and the broader Birchtech team to strengthen our financial operations, support disciplined capital allocation, and deliver sustainable long-term value for our shareholders.”

 

 

 

 

 

About Birchtech Corp.

 

Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) is a leader in specialty activated carbon technologies delivering innovative solutions for air and water purification to support a cleaner, more sustainable future. The Company provides patented SEA® sorbent technologies for mercury emissions capture for the coal-fired utility sector and SEA disruptive water purification technologies with a specialization on removing contaminants, including ‘forever chemicals’ such as PFAS, from potable water and industrial wastewater. Backed by a strong intellectual property portfolio and a team of activated carbon experts, Birchtech provides cleaner air to North American communities and is applying this expertise to a novel approach in water purification. To learn more, please visit www.birchtech.com.

 

Safe Harbor Statement

 

With the exception of historical information contained in this press release, content herein may contain “forward-looking statements” that are made pursuant to the Safe Harbor Provisions of the U.S. Private Securities Litigation Reform Act of 1995 or forward-looking information under applicable Canadian securities laws (collectively, “forward-looking statements”). Forward-looking statements are generally identified by using words such as “anticipate,” “believe,” “plan,” “expect,” “intend,” “will,” and similar expressions, but these words are not the exclusive means of identifying forward-looking statements. Forward-looking statements in this release include statements relating to expected developments and growth in Birchtech’s business, including the transition of the Chief Financial Officer role and the expected contributions of Mr. Mioska in that capacity. These statements are based on management’s current expectations and are subject to uncertainty and changes in circumstances. Investors are cautioned that forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from the statements made. In addition, this release contains time-sensitive information that reflects management’s best analysis only as of the date of this release. Birchtech does not undertake any obligation to publicly update or revise any forward-looking statements to reflect future events, information or circumstances that arise after the date of this release. Further information concerning issues that could materially affect financial performance or other forward-looking statements contained in this release can be found in Birchtech’s periodic filings with the Securities and Exchange Commission or Canadian securities regulators.

 

Investor Relations Contact

 

Lucas A. Zimmerman

Managing Director

MZ Group – MZ North America

(949) 259-4987

BCHT@mzgroup.us

www.mzgroup.us

 

 

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FAQ

What executive leadership change did Birchtech (BCHT) announce?

Birchtech announced that Michael Mioska, CPA, MBA, has been appointed as its new Chief Financial Officer. He replaces a fractional CFO and will oversee finance, reporting and capital allocation as the company scales its specialty activated carbon and water treatment platforms.

What is Michael Mioska’s background before becoming Birchtech (BCHT) CFO?

Michael Mioska is a Chartered Professional Accountant with over 20 years of accounting, audit and financial reporting experience. Since 2021 he has been an independent consultant serving public companies, including Birchtech since 2023, after many years at a Vancouver public accounting firm.

Why does Birchtech (BCHT) consider Michael Mioska a good fit for CFO?

Birchtech highlights Mioska’s technical expertise, capital markets and M&A discipline, and reporting experience, plus his deep familiarity with Birchtech’s operations and strategy from prior consulting work. Management expects this to enable a seamless transition and support the company’s growth strategy.

What did Birchtech’s CEO say about the new CFO appointment?

CEO Richard MacPherson said Mioska brings the expertise needed for Birchtech’s next growth phase and will help scale its activated carbon and water treatment platforms. He also thanked former fractional CFO Fiona Fitzmaurice for her contributions, including through the NYSE American uplisting.

How did new CFO Michael Mioska describe Birchtech’s (BCHT) prospects?

Mioska said he is excited to join at a “pivotal moment” and believes Birchtech is well positioned to capture significant opportunities in air and water treatment markets. He aims to strengthen financial operations and support disciplined capital allocation for long-term shareholder value.

What markets and technologies does Birchtech (BCHT) focus on?

Birchtech focuses on specialty activated carbon technologies for air and water purification. Its patented SEA sorbent technologies capture mercury emissions from coal-fired utilities and target contaminants, including PFAS “forever chemicals”, in potable water and industrial wastewater using disruptive water purification solutions.

Filing Exhibits & Attachments

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