CORSICANA, Texas, March 24, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE:BCHT) (TSX:BCHT) ("Birchtech" or the "Company"), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it will release financial results for the fourth quarter ended December 31, 2025, after market close on Tuesday, March 31, 2026.

Management will host an investor conference call at 5:00 p.m. Eastern time on Tuesday, March 31, 2026, to discuss Birchtech's fourth quarter 2025 financial results and provide a corporate update. To participate, please use the following information:

Fourth Quarter 2025 Earnings Conference Call

Date: Tuesday, March 31, 2026

Time: 5:00 p.m. Eastern time

U.S./Canada Dial-in: 1-877-407-0792

International Dial-in: 1-201-689-8263

Conference ID: 13759505

Webcast: BCHT Q4 2025 Earnings Conference Call

Please dial in at least 10 minutes before the start of the call to ensure timely participation.

A telephone playback of the call will be available through Tuesday, April 21, 2026. To listen, call 1-844-512-2921 within the United States and Canada or 1-412-317-6671 when calling internationally, using replay pin number 13759505. A webcast replay will be available for one year, using the webcast link above.

About Birchtech Corp.

Birchtech Corp. (NYSE:BCHT) (TSX:BCHT) is a leader in specialty activated carbon technologies, serving as America's Clean Coal and Clean Water Company by 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 world-class 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 market sizing estimates, projected growth rates, anticipated customer engagements, and the Company's competitive positioning in the ion exchange resin market. 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

Birchtech Corp. to Host Fourth Quarter 2025 Earnings Call on March 31 at 5:00 p.m. Eastern Time