Jiangsu Hongjing New Materials Co., Ltd.’s polycyclic olefin pilot project has been approved for registration

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In February, the polycyclic olefin pilot project of Jiangsu Hongjing New Materials Co., Ltd. was approved for registration. In January 2025, the first public announcement regarding the environmental impact assessment for Jiangsu Hongjing New Materials’ polycycloolefin pilot project was made. Project Name: Pilot Plant Construction for Polycyclic Olefins at Jiangsu Hongjing New Materials Company
Project Owner: Jiangsu Hongjing New Materials Co., Ltd.
Nature of the Project: New construction
Location of the Project: Within the premises of Jiangsu Hongjing New Materials Co., Ltd., in the Lianyungang Petrochemical Industry Park, Xuwei New Area, Lianyungang City, Jiangsu Province. Construction content and scale: The total investment for the project is 72.5125 million yuan. A new multi-ring olefin combined pilot plant will be built, which includes an 800-ton/year multi-ring olefin unit and an 800-ton/year special monomer unit, along with supporting facilities such as utility buildings, tank areas, cabinet rooms, substation stations, and pipe galleries. The project covers an area of 9,773 square meters. Focusing on the high-end polyolefin sector, Shenghong has made significant investments in two main areas: polyolefin elastomers (POE) and high-end ethylene-vinyl alcohol copolymers (high-end EVA), and has planned to build several industrial-scale projects as well as pilot plants. On November 10, 2025, a public announcement was made regarding the status of acceptance of the environmental impact assessment documents for Jiangsu Sierbang Petrochemical Co., Ltd.’s 800-ton/year high-end polyolefin pilot plant project. This project involves upgrading the existing 800-ton/year POE pilot plant along with its associated auxiliary facilities. By making use of the existing main pilot plant equipment and the extrusion and material preparation buildings, additional equipment such as butylene feed buffer tanks is added to build an 800-ton/year high-end polyolefin pilot plant, thereby enabling the production of high-end polyolefin products at a capacity of 800 tons per year. The metallocene solution process is adopted for production. The 100,000 tons per year high-end polyolefin monomer (POE) production facility and related supporting facilities will be constructed by Jiangsu Hongjing New Materials, a wholly-owned subsidiary of Sierbang, and the project will be carried out in two phases. One of the phases involves a POE production facility with an annual capacity of 100,000 tons; this facility uses the solution polymerization method along with metalocatalysts developed in-house. It came online successfully in September 2025, and the first batch of high-quality products amounting to 320 tons was delivered at that time. The facility is capable of producing 100,000 tons of POE per year, as well as small amounts of oligomers and fuel oil ； The two-phase plan involves building a new ethylene oligomerization unit with an annual capacity of 50,000 tons. Once operational, it will be able to produce 33,500 tons per year of 1-octene and 15,600 tons per year of 1-hexene – key monomers required for POE production – thereby ensuring a supply of raw materials for POE manufacturing.