In 1962, Founder Kihachi Tamai establishes our company in Kita-ku, Tokyo, and since then done the business of manufacturing and sales of synthetic organic chemical products.We are going along with customers for their satisfaction through organic chemical products.Yashio Plant , which is based on flexibility , produce various kinds of organic chemical products with its own equipment capability, manufacturing technology, and quality system. The technology and development, having a long history and experience, have enabled us to comply with customers request of supply for high quality products witout any failure, properly, and quickly.