An anonymous director reports

BIRCHTECH CORP. TO HOST FIRST QUARTER 2026 EARNINGS CALL ON MAY 13 AT 5:00 P.M. EASTERN TIME

Birchtech Corp. will release its financial results for the first quarter ended March 31, 2026, after market close on Wednesday, May 13, 2026.

Management will host an investor conference call at 5 p.m. Eastern Time on Wednesday, May 13, 2026, to discuss Birchtech's first quarter 2026 financial results and provide a corporate update. To participate, please use the following information.

First quarter 2026 earnings conference call

Date:  Wednesday, May 13, 2026

Time:  5 p.m. Eastern Time

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

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

Conference ID:  13760298

Webcast:  A webcast will be available.

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 Wednesday, June 3, 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 (personal identification number) 13760298. A webcast replay will be available for one year.

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.

We seek Safe Harbor.