Guangzhou Yourun Synthetic Material Co., Ltd. is a scientific research and production enterprise devotes to the R&D and manufacture of eco-friendly polyurethane catalyst, Polyurethane Additive and other Polyurethane component, including Eco-friendly Organic metal PU catalyst such as Organic Zinc Catalyst, Organic Bismuth Catalyst, which are substitutes for mercury catalyst, lead catalyst and DBTDL tin catalyst.