A ship takes sea water into its tanks for the purpose of maintaining stability. The sea water taken into the ship is called ballast water, which contains all kinds of marine organisms. In recent years, the marine ecosystems in various countries have been disrupted by ballast water taken from and discharged into the sea, which has become a concern. In response to this concern, the International Convention for the Control and Management of Ships’ Ballast Water and Sediments (BWM Convention) entered into force in 2017, which requires all ocean-going vessels to purify ballast water before discharging it.

In advance of the enforcement of the BWM Convention, Sasaki Shipbuilding Co., Ltd. had already built ships equipped with a ballast water treatment system. The company regards the adoption of stricter regulations as a new business opportunity. To differentiate itself from other companies, Sasaki Shipbuilding has been offering proposals not only to meet the environmental regulations but also to help minimize the financial burden on customers.