Toray Membrane USA, Inc (TMUS) is a subsidiary of Toray Industries, a global innovator of materials founded in 1926. Throughout its history, Toray has focused on research and development, operating on the philosophy of "Contributing to society through the creation of new value with innovative ideas, technologies, and products." Toray began its membrane development program in 1968, starting with cellulose acetate membranes and now providing a full range of high-performance polyamide composite membranes. Toray later expanded into the development of PVDF hollow-fiber ultrafiltration membranes and flat-sheet membrane bioreactor (MBR) modules. With decades of manufacturing expertise, today, Toray is a global supplier of membrane technologies with manufacturing facilities located throughout the world in the United States, Japan, Korea, China, and the Middle East. Based in San Diego, California, TMUS specializes in the manufacturing and application development of reverse osmosis (RO) and nanofiltration (NF) membrane elements. TMUS also fully stocks and provides full tech support of its UF and MBR modules. TMUS is registered under ISO 9001:2015 to ensure consistency in product and service quality, and ISO 14001:2015 to enhance environmental performance.