Our factory was founded in 1998. Our factory was located in Danyang, which is the base of lens manufacture in China, mainly engaged in manufacturing and selling plastic and polycarbonate which including semi finished and finished and cover single, bifocal and progressive lens in type-wide. Meanwhile, more and more new types will be introduced into worldwide market continuously. Since 2005, our products have been exported to more than 80 countries--USA, Europe, South America, Southeast Asia, and ect...With the hard work of our R&D team and over 300 workers, Sigo optical company is not only in a leadership position of manufacturing but also in designing safer, healthier and more fashionable lenses.