Yangfan New Materials (Zhejiang) Co., Ltd. is a Chinese company that, with its subsidiaries, researches, develops, produces, and sells ultraviolet (UV) curing products, sulfur-containing fine chemicals, and related new materials in China and internationally. Its product portfolio includes 4-fluoro thiophenol, diphenyl sulfide, diphenyl disulfide, cyclopropanesulfonyl amide, thioacetamide, and various intermediates such as thiophenol, phenyl sulfide, thioanisole, thiofuran, pyridine, aniline, sulfone, and sulfoxide. The company also offers photoinitiators and light-curable materials, including HRI monomers and dispersions, high refractive index UV adhesives, optically bonding and electronic assembly UV adhesives, industrial bonding UV adhesives, and photosensitive resins for special applications. These products serve the pharmaceuticals, pesticides, electronic chemicals, and other fields. Formerly known as Zhejiang Yangfan New Materials Co., Ltd., it changed its name to Yangfan New Materials (Zhejiang) Co., Ltd. in May 2025. Founded in 2002, the company is based in Hangzhou, China.