Recently, water shortages are expected on a global scale. The global water infrastructure market is rapidly expanding due to population growth in emerging countries. One of the technologies for solving this water shortage is seawater desalination technology, and Japan has a 50% share of the world market in seawater desalination technology (reverse osmosis membrane). In this seawater desalination project, water quality measurement is indispensable. HORIBA contributes to global water-infrastructure markets through water quality measurement technologies.