09:48 AM EDT, 06/10/2026 (MT Newswires) -- Birchtech ( BCHT ) has promoted Jim Trettel to chief operating officer, the company said Wednesday.
Trettel previously served as executive vice president of operations after joining the firm in 2014, the company said.
Shares of the company were up 6.9% in Wednesday trading.
Price: 2.02, Change: +0.13, Percent Change: +6.88