Jinhua Royai Colors Co.,Ltd is a high-technology industry which specialized in all kinds of optical brightener(fluorescent brightener)and pigments for over 12 years. We are a professional manufacturer corporation located in Zhejiang & Jiangsu Province,China.We possess over 300 employees including a top-notch products researching and developing team.We own professional laboratory for products development and sophisticated sewage disposal system for sustainable development. We insist on the principle of development of 'High quality, Efficiency, Sincerity and Down-to-earth working approach to provide you with excellent service ! We sincerely welcome you to visit our company or contact us for cooperation!