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Recently, at the petrochemical industry base in Lianyungang, Jiangsu, Shenghong-Sibur Petrochemical’s plant capable of producing 20,000 tons per year of ultra-high molecular weight polyethylene was brought online successfully in a single attempt, yielding qualified products. Ultra-high molecular weight polyethylene is a high-performance thermoplastic engineering plastic that is resistant to impact, wear, and corrosion. It is widely used in cutting-edge fields such as aerospace, marine engineering, rail transit, petrochemicals, and new energy materials, and is known as the \"miracle plastic of the 21st century\". In recent years, the demand for ultra-high molecular weight polyethylene has seen significant growth. In the field of new energy, ultra-high molecular weight polyethylene has become one of the most popular materials for lithium battery separators due to its strong resistance to external penetration, its ability to remain intact at high temperatures, and its excellent safety properties. As a **high-tech enterprise, Sierbang Petrochemical possesses industry-leading technical expertise in key catalysts and polymerization technologies used in the production of ultra-high molecular weight polyethylene. By employing advanced washing processes, Sierbang’s products have lower volatile content, more stable properties, a more uniform particle diameter distribution. The particle size can be adjusted flexibly according to customer requirements, and the products exhibit better plasticizing properties. They can fully replace imported products, thereby significantly reducing reliance on foreign sources for high-end diaphragm materials and facilitating domestic substitution.