Mr. Richard MacPherson reports

BIRCHTECH ANNOUNCES COMMENCEMENT OF SHARE REPURCHASE PROGRAM

Birchtech Corp. intends to commence purchases of its common stock under the $5.0-million share repurchase program authorized by its board of directors and announced on March 19, 2025.

Repurchases under the program may be made from time to time in open market transactions through the facilities of the NYSE American at prevailing market prices, subject to applicable legal and regulatory requirements, market conditions, share price and other factors.

The company expects that purchases may commence on or after Sept. 14, 2026, and may continue until Dec. 31, 2026, unless earlier completed, suspended or discontinued. The actual number of shares purchased, if any, and the timing and price of any purchases will depend on market conditions and other factors. The company is not obligated to purchase any particular number of shares.

The purchases are intended to provide the company with the flexibility to return capital to shareholders when management believes such purchases are appropriate. The company intends to finance any purchases from available cash.

Management commentary

Richard MacPherson, president and chief executive officer of Birchtech, stated: "Commencing this program reflects the confidence of our board and management team in the durability of our business and in the value we are building across both of our platforms. With our patent estate now secured, a substantial final judgment that we continue to pursue and our water business moving from validation toward commercial deployment, we believe returning capital through the repurchase of our common stock at current market pricing may be a prudent use of the balance sheet alongside the investments we are making to scale. With $11.8-million of cash and no debt as of June 30, 2026, we have the capacity to do both and we intend to act opportunistically and with discipline on behalf of my fellow shareholders."

About Birchtech Corp.

Birchtech 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 waste water. 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.

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