Recently, according to the announcement of Rongsheng Petrochemical, the expansion project of its holding subsidiary Yishengda Petrochemical Co., Ltd. with an annual output of 500,000 tons of multifunctional polyester chips has been successfully put into operation. In addition, the 250,000 ton functional polyester film expansion project of Yongsheng Technology, a subsidiary of Rongsheng Petrochemical, has been successfully put into operation, with an annual production capacity of 430,000 tons, ranking among the top four in China. ShengRMB Chemical Fiber Phase II 500,000 ton differentiated fiber project, mainly producing flame-retardant, functional, and dye free fiber products, is also actively promoting the process.

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