LEBANON, Ohio — August 10, 2026 — Kadant Black Clawson LLC, a subsidiary of Kadant Inc. (NYSE: KAI), recently announced the successful startup of a new green liquor system at Södra’s mill in Mörrum, Sweden.
Kadant Black Clawson, in collaboration with Kadant Noss AB, developed the system following a detailed evaluation of the mill’s operating environment to meet site-specific process requirements while supporting long-term sustainability and profitability objectives. The solution upgrades Södra’s green liquor processing with the installation of a green liquor clarifier (GLC) and a dregs precoat filter (DPF). The GLC is designed to handle 100 liters per second and delivers high-quality green liquor, with dregs efficiently removed by the DPF.
Kadant’s green liquor clarifier features the Uniform Flow Design feedwell and Uniform Liquor Removal bustle pipe, producing ultra-clean green liquor while reducing capital and operating costs. By lowering dregs dead load in both liquor and mud circuits, the design improves recausticizing efficiency and reduces energy consumption. Kadant’s dregs precoat filter recovers green liquor from the clarifier underflow while producing a low-moisture, low-chemical cake that is environmentally non-hazardous and suitable for landfill disposal. Together, the system delivers high filtration capacity, efficient chemical recovery, and cost savings for the mill.
“Kadant’s high-efficiency solution supports our growing production goals and delivers the level of performance we need to remain competitive in an increasingly challenging market,” stated Leif Sjöblom, strategic purchaser investments at Södra. Södra selected the Kadant recausticizing solution following a comprehensive evaluation of available technologies. The project included site-specific engineering and end-to-end maintenance support, leveraging Kadant’s extensive experience and long-standing Goslin legacy in chemical pulp recausticizing systems.
About Södra
Södra was founded in 1938 and is the largest forest-owner association in Sweden. The company processes forest raw material into renewable products such as pulp, timber, building systems, energy and biochemicals. Södra’s mill in Mörrum is a specialized pulp mill with two production lines—one producing premium paper pulp and the other dissolving pulp for textile and specialty applications. The mill has an annual production capacity of 470,000 tons and employs approximately 400 people.
About Kadant Black Clawson LLC
Kadant Black Clawson LLC is a leading supplier of fiber processing and recycling equipment, designing, manufacturing, and servicing systems used in virgin and recycled stock preparation and paper machine approach-flow applications. The company’s technologies and services enhance process efficiency, optimize energy utilization, and maximize productivity in resource-intensive industries. For more information, visit fiberprocessing.kadant.com
About Kadant Noss AB
Kadant Noss AB is a leading supplier of fiber processing equipment and systems, providing innovative solutions for chemical and mechanical pulp applications, as well as approach flow applications for paper, board, and tissue machines. The company offers design, engineering, project management, and service for complete systems used in cleaning, fractionation, thickening, screening, deaeration, and other fiber processing applications. For more information, visit fiberprocessing.kadant.com
About Kadant Inc.
Kadant Inc. is a global supplier of technologies and engineered systems that drive Sustainable Industrial Processing®. The Company’s products and services play an integral role in enhancing efficiency, optimizing energy utilization, and maximizing productivity in process industries. Kadant is based in Westford, Massachusetts, with approximately 4,000 employees in 22 countries worldwide. For more information, visit kadant.com.
Safe Harbor Statement
The following constitutes a “Safe Harbor” statement under the Private Securities Litigation Reform Act of 1995: This press release contains forward-looking statements that involve a number of risks and uncertainties, including forward-looking statements about our customers, products, technologies, and markets. These forward-looking statements represent our expectations as of the date of this press release. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise. These forward-looking statements are subject to known and unknown risks and uncertainties that may cause our actual results to differ materially from these forward-looking statements as a result of various important factors, including those set forth under the heading "Risk Factors" in Kadant’s annual report on Form 10-K for the fiscal year ended January 3, 2026 and subsequent filings with the Securities and Exchange Commission.
