Rongxiang Chemical Fiber Co., Ltd., a former production subsidiary under Rongsheng Petrochemical, is the origin of the RONGXIANG brand. It focused on the production of differentiated polyester filament yarns and PET chips, with mature spinning and polymerizing technologies. The RONGXIANG trademark is registered for yarns and filaments, covering POY, FDY, DTY and special functional fiber products. The plant was located in Xiaoshan, Hangzhou, adopting standardized quality management systems to guarantee stable fiber performance for textile weaving, garment and home textile customers. Although the manufacturing entity has been restructured, the RONGXIANG brand remains active for polyester fiber products under the Rongsheng system, representing reliable quality and professional service for global textile buyers.