Changes to certain aspects of the construction for Junzheng’s 2×600,000-ton BDO and 2×1,000,000-ton PBAT/PBS/PBT and PTMEG green and sustainable circular industry project in Wuhai, Inner Mongolia

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Recently, the Uhai City Ecology and Environment Bureau issued a public notice regarding the acceptance of the environmental impact assessment report for the expansion project of Inner Mongolia Junzheng Chemical Co., Ltd.: specifically, the construction of 2×300,000 tons per year of BDO and 2×120,000 tons per year of PTMEG as part of the first phase of this green and sustainable industrial project that involves annual production of 2×600,000 tons of BDO and 2×1,000,000 tons of PBAT/PBS/PBT/PTMEG. Construction of this project began in April 2023, and it entered the stage of commissioning and production on June 12, 2024. During the construction and trial production phases of the project, it was found that there were significant changes in the actual construction details as compared to those approved in the environmental impact assessment: according to the original approval, the methanol decomposition unit of the PTMEG production facility generated methyl acetate organic waste liquid, which was classified as hazardous waste and had to be disposed of by qualified entities ； During the actual construction process, an azeotropic distillation tower was added to the PTMEG synthesis unit to distill the methanol-methyl acetate mixture; this resulted in an increased usage of methanol as well as more methyl acetate by-products. The quality parameters of the extracted methyl acetate meet the requirements for qualified products as specified in \"Methyl Acetate for Industrial Use\" (HG/T5626-2019), and it is sold as a by-product. Therefore, the construction unit resubmits the environmental impact assessment document for the construction project for approval. Inner Mongolia Junzheng Chemical Co., Ltd.’s green and sustainable circular industry project, which includes 2×600,000 tons of BDO, as well as 2×1,000,000 tons of PBAT/PBS/PBT and PTMEG; the first phase of this project involves 2×300,000 tons of BDO and an annual production of 2×120,000 tons of PTMEG. Project type: New construction. Investment: The total investment amounts to 13 billion yuan, of which 7 billion yuan is allocated to Phase 1 and 6 billion yuan to Phase 2. Constructor: Inner Mongolia Junzheng Chemical Co., Ltd. Location: Wuda Industrial Park, Wuhai City, Inner Mongolia. Land area: Phase 1 covers an area of 390,000 m2, while Phase 2 covers 230,000 m2, for a total of 620,000 m2. Scale of construction: The scope of construction under evaluation includes 2×600,000 tons of BDO, 2×1,000,000 tons of PBAT/PBS/PBT and PTMEG, as well as the 2×300,000 tons of BDO and 2×120,000 tons of PTMEG production in Phase 1. This phase is divided into two sub-phases, Phase 1 and Phase 2, with identical construction contents in each phase. The specific outputs for each phase are as follows: ① 100,000 tons per year of acetylene; ② 400,000 tons per year of formaldehyde; ③ 300,000 tons per year of BDO (1,4-butanediol); ④ 120,000 tons per year of PTMEG (polytetramethylene ether glycol). Annual operating time: 333 days, equivalent to 8,000 hours. Number of employees: Phase 1 requires 2,500 employees, while Phase 2 requires 1,500 employees, for a total of 4,000 employees. Since its establishment in 2003, Inner Mongolia Junzheng Energy Chemical Group Co., Ltd. has utilized the region’s abundant resources such as coal and limestone in Wuhai City, focusing on comprehensive utilization of these resources to improve efficiency in resource conversion. The company has also made significant efforts to develop a circular economy, with its business activities spanning coal mining, power generation, chemicals, specialty metallurgy, and commercial trading. As a result, it has developed one of the most complete “coal-electricity-chlor-alkali chemicals” circular economy industrial chains in China. The company’s operations cover areas such as power generation, limestone mining, quicklime production, calcium carbide manufacturing, caustic soda production, PVC production via the acetylene method, and ferrosilicon smelting. Its main products include PVC resin, caustic soda, calcium carbide, ferrosilicon, and cement clinker. As the leading enterprise in the chlor-alkali chemicals industry in Inner Mongolia, it has a production capacity of 800,000 tons for polyvinyl chloride products, 550,000 tons for caustic soda, and 300,000 tons for ferrosilicon. Inner Mongolia Junzheng Chemical Co., Ltd. is a wholly-owned subsidiary of Inner Mongolia Junzheng Energy Chemical Group Co., Ltd.