Polymeric mercaptans are characterized by their ability to contribute to photo- and thermosetting reactions. They are expected to be used in highly refractive resins, coating materials, adhesives, paints, and other applications, adhesives, and paints. They are also used as chain transfer agents in radical polymerization, curing agents for epoxy resins, cleaning agents for electronic components, and copper thin film production. Mercaptans are also widely used as chain transfer agents in radical polymerization, curing agents for epoxy resins, cleaning agents for electronic components, and copper thin film production. We have developed a new production technology for polyvalent mercaptans and can now offer the following compounds. We hope you will consider using this technology. We hope you will consider using the following compounds.