The Sado Ocean Deep Water NISACO Factory, completed in 2005, represents a compelling example of contemporary industrial architecture designed by architect Danki Toshihiko. Located in Sado City, Niigata Prefecture, this facility functions as a factory, workshop, and warehouse dedicated to processing ocean deep-layer water resources. The building demonstrates thoughtful integration of functional manufacturing spaces with its natural coastal environment. Its design reflects modern architectural principles applied to utilitarian structures, making it an notable case study for how industrial facilities can balance operational efficiency with environmental consciousness and aesthetic consideration in Japan's regional architecture.