New License Agreement Resolves Case Against Coal-Fired Utility, Dismisses Defendant from Litigation CORSICANA, Texas, Sept. 24, 2025 (GLOBE NEWSWIRE) -- Birchtech Corp. (TSX: BCHT) (OTCQB: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced a non-exclusive agreement with a large regional coal-fired power utility that the Company filed suit against in January 2025 regarding the Company’s patented mercury emissions ...