Duran Chemicals was set up in Nov. 1998 The predecessor was Guangdong Chemical Raw Materials Co., Ltd., which started to sell imported refrigerants in 1988. Repackaging and production facilities £ Workshop and office building £ Returnable cylinders £ Repackaging and business certificate. £ Duran got the certificate from the custom for duty free processing of import materials. It is the first refrigerant trading company in China to get such kind of certificate.