Birchtech Corp.

Birchtech Corp. provides specialty activated carbon technologies focused on air and water purification. The company supplies proprietary and patented sorbent solutions, including its Sorbent Enhancement Additive process, to reduce mercury emissions from coal-fired power plants. In addition, it develops water purification technologies targeting per- and polyfluoroalkyl substances and other contaminants through thermal reactivation of spent granular activated carbon, testing, and consulting services. It also offers ion exchange resins designed for nuclear power facilities, coal-fired units, and wastewater systems. Key customers include operators of coal-fired electricity generating units and municipal drinking water utilities.

The company operates two water treatment laboratory design centers situated in North Dakota and Pennsylvania, and it maintains a manufacturing and distribution site in Corsicana, Texas. In the United States power sector, sixteen electric generating units utilize its mercury capture technologies. Birchtech Corp. is based in Corsicana, Texas.

Summary of the business section of Birchtech's latest annual report, written by StockData.

“As of December 31, 2025, we had 14 full-time and 6 part-time employees. Our employees are not represented by labor unions. We believe that relations with our employees are good.”