Mr. Lucas Zimmerman reports

BIRCHTECH CORP. TO HOST THIRD QUARTER 2025 EARNINGS CALL ON NOVEMBER 13 AT 5:00 P.M. EASTERN TIME

Birchtech Corp. will release its financial results for the third quarter ended Sept. 30, 2025, after the market close on Thursday, Nov. 13, 2025.

Management will host an investor conference call at 5 p.m. Eastern Time on Thursday, Nov. 13, 2025, to discuss Birchtech's third quarter 2025 financial results and provide a corporate update. To participate, please use the following information.

Third quarter 2025 earnings conference call

Date:  Thursday, Nov. 13, 2025

Time:  5 p.m. Eastern Time

United States/Canada dial-in:  1-877-407-0792

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

Conference ID No.:  13756941

Webcast:  Birchtech Q3 (third quarter) 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 Thursday, Dec. 4, 2025. To listen, call 1-844-512-2921 within the U.S. and Canada, or 1-412-317-6671 when calling internationally, using replay PIN 13756941. A webcast replay will be available for one year.

About Birchtech Corp.

Birchtech 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 is developing disruptive water purification technologies with a specialization on forever chemicals such as PFAS. 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.

We seek Safe Harbor.