Seisui Kogyo Co., Ltd., an expert in water treatment and sludge treatment headquartered in Chiba City, Chiba Prefecture and led by President Kenichi Imoto, announced that its “Collaborative Business Continuity Enhancement Plan,” jointly formulated with group company Seisui Support LLC, has been certified by Japan’s Minister of Economy, Trade and Industry. Through this certification, the company’s collaborative framework for continuing the supply of temporary water treatment services during emergencies, including natural disasters, has been positioned as a nationally certified plan. Certification overview: The certification date is April 27, 2026. The certifying authority is the Minister of Economy, Trade and Industry. The plan name is the Collaborative Business Continuity Enhancement Plan. The implementation period is three years from the certification date. The collaborating business operator is Seisui Support LLC, and the collaboration type is vertical collaboration within the group based on functional complementarity. Background: More than 50 years have passed since much of Japan’s sewerage infrastructure was developed during the high economic growth period, and many facilities are now reaching the stage where renewal is required. At the same time, earthquakes, torrential rains and other natural disasters are becoming more frequent and severe, increasing the need to respond to facility damage and sharp increases in inflow volume. Against this backdrop, Seisui Kogyo has supplied temporary water treatment plants across Japan with treatment performance equivalent to permanent facilities, supporting the maintenance of social infrastructure and disaster recovery at more than 2,650 sites. However, if the company’s own business continuity framework is unstable, its response to disaster-affected areas could be delayed. Since the company provides alternative means to keep infrastructure running, maintaining its own business continuity framework is a prerequisite for field