PPS，两大化工巨头再加码，18万吨新厂也正赶来！

Core Viewpoint - The article discusses the recent advancements in the production of bio-based polyphenylene sulfide (PPS) by Zhejiang Xinheng and the expansion of production capacity by Toray Advanced Materials in South Korea, highlighting the growing market for PPS and its applications in various industries [2][3]. Group 1: Company Developments - Zhejiang Xinheng has successfully launched bio-based PPS products with 100% bio-based content, matching the mechanical performance of traditional products, and has entered the small-scale sales phase [2]. - The total planned production capacity for Xinheng's PPS is 30,000 tons, with 22,000 tons already built and a target utilization rate of 100% by 2024 [2]. - Toray Advanced Materials has completed the expansion of its PPS production line in Gunsan, South Korea, increasing its annual capacity to 13,600 tons [2]. Group 2: Market Landscape - The global PPS resin production capacity is concentrated in Northeast Asia and North America, with the top five producers accounting for 60% of the total capacity [3]. - As of June 2025, China has 250,000 tons of planned PPS projects under construction, with an expected total capacity of 129,000 tons by the end of 2025 [3]. - The domestic consumption of PPS is projected to be 56,000 tons in 2024, with approximately 30,000 tons relying on imports from international giants like Celanese and Toray, resulting in a self-sufficiency rate of only 46.4% [3]. Group 3: Industry Applications - PPS is recognized for its excellent high-temperature resistance, chemical corrosion resistance, flame retardancy, and dimensional stability, making it suitable for various applications [2][3]. - The largest demand for PPS is in the electric vehicle sector, where it is used in components such as explosion-proof battery covers and electronic pumps [7]. - Other significant applications include robotics, electronics, and aerospace, where PPS is utilized in lightweight structural components and circuit board substrates [7].