Dezhou Shihua Chemical Co., Ltd. was established in 2007 and is located at No. 6 Shihua South Road, Tianqu Industrial Park, Decheng District, Dezhou City, Shandong Province. It is a key enterprise with regional influence in the chlor-alkali chemical industry and is controlled by Shandong Shihua Group Co., Ltd. The company’s core business covers research, development, production, and sales of basic chemical products including caustic soda, polyvinyl chloride (PVC), liquid chlorine, hydrochloric acid, and sodium hypochlorite. Its products are widely applied across industries such as construction materials, textiles, papermaking, pharmaceuticals, and water treatment. The company possesses an annual production capacity of 300,000 tons of ion-exchange membrane caustic soda and 250,000 tons of PVC resin, supported by its own thermal power plant and chlorine balance system, thereby establishing a circular economy industrial chain centered on chlor-alkali chemicals and integrating upstream and downstream collaboration. Technologically, the company employs domestically manufactured ion-exchange membrane electrolytic cells and low-mercury/mercury-free PVC polymerization processes. It holds utility model patents such as “Internal Anti-adhesion Coating Structure for Vinyl Chloride Polymerization Reactor Walls” (Patent No.: ZL202121357892.4) and has participated in revising national standards including “Sodium Hydroxide for Industrial Use” (GB/T 209-2018). The company has obtained certifications for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. It holds a Dangerous Chemicals Production Safety Permit (Permit No.: Lu WH An Xu Zheng Zi [2023] 040087, valid until July 2026) and has been recognized as a Level-II Standardized Enterprise for Production Safety (Permit No.: Lu AQB-II-CL-2022-0089). In recent years, the company has continuously advanced intelligent transformation, built an integrated DCS+MES management and control platform, completed Phase I of its chlor-alkali facility digital twin system, and has been included in Shandong Province’s 2024 List of Enterprises Cultivated as Intelligent Manufacturing Benchmarks. Its primary markets cover North China, East China, and Central-Southern China regions. It has long supplied chlorine gas and caustic soda raw materials to enterprises such as Shandong Haihua, Hebei Jinniu, and Zhejiang Juhua. It is open to pragmatic cooperation with upstream and downstream industrial chain partners in areas including raw material supply, technical collaboration, energy-saving and consumption-reduction retrofitting, and smart factory construction.