Hangzhou Tonsun Technology Development Co., Ltd. Company ProfileFounded in December 2019, Hangzhou Tonsun Technology Development Co., Ltd. is a professional manufacturer integrating R&D, production and sales of chemical colorants.Located in Hangzhou, renowned as "Paradise on Earth" and situated in the heart of the Yangtze River Delta, our company enjoys superior geographical advantages and complete industrial supporting facilities. We specialize in a full range of pigments, dyes and chemical raw materials. Our diversified product portfolio includes iron oxide pigments, organic pigments, general inorganic pigments, special effect pigments such as pearlescent and fluorescent pigments, solvent dyes, as well as auxiliary chemicals like phosphorous acid. Our products are widely applied in coloration scenarios for inks, coatings, plastics and other industries.Since its establishment, backed by abundant capital and mature core technologies, the company has obtained a number of authoritative domestic and international quality certifications and built solid reputation across the...