Birchtech agrees in principle to acquire activated carbon firm

Birchtech Corp., a dual-listed (NYSE American and TSX) specialist in activated carbon technologies for air and water treatment, has signed a non-binding term sheet to acquire substantially all of the assets of an unnamed privately held activated carbon company. The proposed transaction is intended to give Birchtech its first commercial-scale facilities for thermal reactivation of spent activated carbon, which the company markets under the name "Carbon Rejuvenation."

The target company's operations would complement Birchtech's existing Design Centre footprint by adding facilities in North Dakota and Pennsylvania. The company says the combined network would provide what it describes as a scalable processing framework for supplying the water treatment sector with rejuvenated carbon. Birchtech did not disclose an acquisition price, the target company's name, its revenue, or the volume of activated carbon the facilities can process annually.

Chief executive Richard MacPherson said the proposed deal could advance the company's carbon rejuvenation strategy by adding "meaningful production capacity to service our initial water customers." The term sheet is non-binding except for exclusivity provisions; a definitive agreement, completion of due diligence, and an audit of the target remain outstanding before any deal can close.

What is activated carbon rejuvenation?

Activated carbon (AC) is a porous material widely used to adsorb contaminants in water and air treatment systems. Once saturated, spent carbon has traditionally been sent to landfill or incinerated. Thermal reactivation, which uses heat to burn off adsorbed compounds and restore adsorptive capacity, allows the same carbon to be cycled back into service, reducing both raw-material costs and waste volumes. Birchtech says its Carbon Rejuvenation process operates at lower temperatures than conventional reactivation kilns, though the company has not published independent data on energy consumption or recovery rates.

Birchtech's core business includes its patented SEA sorbent technology for capturing mercury emissions at coal-fired power plants, and a water-purification line focused on removing per- and polyfluoroalkyl substances (PFAS), the persistent synthetic chemicals increasingly subject to stringent regulatory limits in both the United States and Europe.

Market and policy context

The PFAS-removal market is expanding rapidly, driven by tightening US Environmental Protection Agency maximum contaminant levels and parallel European regulation. Activated carbon filtration is one of the primary treatment technologies, which means demand for both virgin and rejuvenated carbon is rising alongside regulatory pressure. Several larger industrial and water-infrastructure players, including established carbon manufacturers and environmental-services firms, are also pursuing reactivation capacity.

For Birchtech, which is a small-cap operator, acquiring processing assets rather than building greenfield facilities is a faster path to commercial scale. However, the deal remains conditional and the absence of financial terms means investors cannot yet assess whether the acquisition price is value-accretive. The company's coal-sector mercury business also faces a structural headwind as coal-fired generation retires, making PFAS and water treatment the more durable revenue opportunity.

The next key milestones are execution of a definitive acquisition agreement and satisfactory completion of the target's audit. Birchtech has not disclosed a target closing date.