Public announcement on the acceptance of the environmental impact assessment for Tangshan Zhonghao’s pilot project for the production of 1,000 tons per year of hexanenitrile and other products

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Public Notice on the Acceptance for Environmental Impact Assessment of Tangshan’s 1,000-ton/year Adiponitrile Pilot Project 2025-10-27 13:46:59 Recently, the Tangshan Administrative Approval Bureau issued a public notice regarding the acceptance of the environmental impact assessment report for Tangshan Zhonghao Chemical Co., Ltd.’s pilot project for new material intermediates (which includes a 2,000-ton/year epoxy cyclohexane and a 1,000-ton/year adiponitrile production project). In 2023 and 2025, Zhonghao Company carried out the \"40,000-ton/year project for the first phase of the 300,000-ton/year nylon 6,6 new material production line\" and the \"100,000-ton/year hexamethylenediamine production project\" respectively. These projects enabled the establishment of a production chain for hexanitrocinamide – hexamethylenediamine – nylon 6,6. However, hexanitrocinamide, the key raw material, is purchased from external suppliers, and supply shortages can easily occur due to market fluctuations. To overcome this bottleneck related to hexanitrocinamide, Zhonghao Company has decided to attempt producing it in-house. Currently, the common synthesis methods for adiponitrile include the butadiene method, the electrolytic dimerization of acrylonitrile, and the ammonolysis of adipic acid. These methods suffer from issues such as technical restrictions, high costs, and high energy consumption. Therefore, Zhonghao Company decided to adopt the \"cyclohexene-epoxycyclohexane-adiponitrile\" process route to produce adiponitrile. Currently, this technology has passed the pilot test stage and is ready for scale-up to pilot production. To this end, Zhonghao Company has decided to carry out the “Tangshan Zhonghao Chemical Co., Ltd. New Material Intermediates Pilot Project (including a pilot plant for 2,000 tons per year of epichlorohydrin and 1,000 tons per year of adiponitrile)” within the existing facilities of the Tangshan Haigang Economic Development Zone and Tangshan Kailuan Chemical Technology Co., Ltd. The project involves the construction of one pilot plant for producing 2,000 tons per year of epichlorohydrin and one pilot plant for producing 1,000 tons per year of adiponitrile. Upon completion of the project, it will produce 2,000 tons of epichlorohydrin and 1,000 tons of adiponitrile per year. Project Overview: Project Name: Tangshan Zhonghao Chemical Co., Ltd. Pilot Project for New Material Intermediates (and Pilot Project for 2,000 tons/year of epichlorohydrin and 1,000 tons/year of adiponitrile). Location of Construction: Tangshan Seaport Economic Development Zone, within the existing plant area of Tangshan Kailuan Chemical Technology Co., Ltd. Constructor: Tangshan Zhonghao Chemical Co., Ltd. Nature of Construction: New construction. Scale of Construction: Upon completion, the project will enable annual production of 2,000 tons of epichlorohydrin and 1,000 tons of adiponitrile. Project investment: The total investment for the project is 69.934 million yuan, of which 3 million yuan is allocated to environmental protection measures, accounting for 4.29% of the total investment. Construction period: 6 months