The De Nora BW Water acquisition will create a broader global platform for engineered water treatment systems, with De Nora signing a Share Purchase Agreement to acquire 100% of BW Water from BW Renewables Pte. Ltd. and Opal Environmental Solutions Ltd.
The transaction is expected to strengthen De Nora’s position across industrial water, wastewater, ultrapure water and desalination systems, while expanding its reach in high-growth sectors including semiconductors, mining, pharmaceuticals, food and beverage, data centres and industrial water reuse.
According to De Nora, the acquisition has an expected enterprise value of between USD 61.5 million and USD 66.5 million. The transaction is expected to close on 1 July 2026, subject to customary closing conditions, including antitrust clearance from the German Federal Cartel Office.
De Nora said the acquisition will combine its electrochemical and water treatment technologies with BW Water’s engineering, procurement, fabrication and turnkey delivery capabilities.
De Nora BW Water acquisition expands engineered water platform
The De Nora BW Water acquisition is designed to create a stronger end-to-end platform for industrial and municipal customers seeking integrated water treatment solutions.
BW Water brings expertise in industrial and semiconductor wastewater, ultrapure water, desalination and membrane-based treatment systems. The company is headquartered in Singapore and operates across Asia, Europe and the Americas, with regional hubs in Florida and Stuttgart.
The combination is expected to support projects that require integrated technology, engineering and delivery capabilities, particularly in sectors where water quality, resource recovery and operational resilience are becoming more important.
De Nora said the deal will also support innovation in resource recovery and water reuse, including the recovery of critical materials such as TMAH, or tetramethylammonium hydroxide, from waste streams.
Industrial water demand drives acquisition strategy
Rising demand for resilient water infrastructure is increasing pressure on industrial operators to manage water scarcity, wastewater treatment, contamination and reuse more effectively.
The acquisition gives De Nora access to BW Water’s project execution capabilities and fabrication network, including engineering and manufacturing operations in Southeast Asia, Germany and other key markets.
Paolo Dellachà, Chief Executive Officer of De Nora, said: “The acquisition of BW Water is closely aligned with our long and midterm strategy. By integrating De Nora’s technology leadership with BW Water’s execution and process engineering capabilities, we strengthen our ability to deliver end to end solutions with speed and certainty. This also creates a powerful platform to accelerate innovation in circularity, enabling the full recovery and reuse of critical materials while driving sustainable growth across high demand markets.”
Marwan Nesicolaci, Chief Executive Officer of De Nora Water Technologies, added: “BW Water has built a strong track record with tier-one customers and a team that delivers complex turnkey water and wastewater projects at scale. By integrating these capabilities into our water technologies segment, we strengthen our ability to deliver end-to-end, fully integrated solutions with speed and reliability, while creating a platform to address the increasingly complex water needs of high-growth sectors such as semiconductors, data centres, and mining.”
BW Water sale supports next phase of growth
BW Group said BW Renewables has entered into a binding agreement to sell BW Water to De Nora. Following completion, BW Water’s business, including its existing operations, engineering hub and manufacturing centres, will be acquired by De Nora.
BW Water has developed more than 200 municipal and industrial installations worldwide and has more than 300 employees across nine locations. Its capabilities include full-service water and wastewater solutions, desalination, treatment system upgrades, operations and maintenance.
Erik Strømsø, Managing Director of BW Renewables and CEO of BW ESS, said the transaction marks “a pivotal step in BW Water’s next phase of growth”.
The deal also reflects wider demand for water infrastructure capable of supporting industrial growth, water reuse and more resilient supply chains.
Read more water technology and treatment news in the Water Treatment and Wastewater sections of H2O Global News.
FAQs
What does BW Water add to De Nora?
BW Water adds engineering, fabrication and turnkey project delivery expertise across industrial water, wastewater, ultrapure water and desalination systems.
Why is ultrapure water important for semiconductors?
Ultrapure water is essential in semiconductor manufacturing because very small levels of contamination can affect production quality, yield and equipment performance.
Why are industrial water treatment acquisitions increasing?
Industrial water treatment acquisitions are increasing as companies seek stronger capabilities in water reuse, desalination, wastewater treatment, contamination control and resource recovery.
