Hubei Dayukou Chemical Co., Ltd. is located in Shuanghe Town, Zhongxiang City, Hubei Province. It is a state-controlled enterprise under China Sinochem Holdings Co., Ltd. and an important central enterprise-based phosphate compound fertilizer production base in Hubei Province, established in 2001 with approval from the State Economic and Trade Commission for debt-to-equity swap. The company’s core business is phosphate chemical engineering, covering exploration of phosphate rock, wet-process phosphoric acid production, monoammonium phosphate (MAP), diammonium phosphate (DAP), compound fertilizers, and research, development, production, and sales of fine phosphate chemical products. Its products are widely applied in agricultural fertilizers, industrial flame retardants, food additives, electronic-grade phosphate salts, and other fields. Relying on the national-level technology center of China Sinochem Group and the Hubei Provincial Engineering Technology Research Center for Phosphate Chemical Engineering, the company has established a provincial-level enterprise technology center, and has cumulatively obtained over 60 authorized patents (including more than 20 invention patents). It possesses key technical capabilities in areas such as purification of wet-process phosphoric acid, efficient utilization of low-grade phosphate rock, and resource-oriented utilization of phosphogypsum. Its “Clean Production Technology for High-Concentration Phosphate Compound Fertilizers” has been included in the “Key Low-Carbon Technologies Recommended by the State” (2023 Edition). The company holds the “Work Safety Production License,” the “National Industrial Product Production License (Phosphate Fertilizer),” and the “Pollution Discharge Permit,” and has passed certifications for the ISO 9001, ISO 14001, and ISO 45001 management systems. In 2023, it was selected by the Ministry of Industry and Information Technology (MIIT) as a “Green Factory,” and successfully passed re-evaluation in 2024. Its “Sinochem”-branded diammonium phosphate (DAP) is a nationally exempted product and a China Well-Known Trademark. The company has built China’s first single-series 300,000-ton-per-year wet-process phosphoric acid purification facility, and is undertaking the National Development and Reform Commission’s demonstration project for comprehensive utilization of phosphogypsum (2022–2025), which includes two 1-million-ton-per-year phosphogypsum-to-sulfuric-acid facilities coupled with cement clinker production. Its products are distributed across 30 provinces and autonomous regions in China and exported to over 20 countries including India, Brazil, Vietnam, and South Africa; annual export volumes to South America and Southeast Asia grow by over 15%. The company holds independent rights for import and export operations and offers diversified cooperation pathways to domestic and international customers, including joint R&D, customized product supply, green process solutions, and collaborative projects on cyclic utilization of phosphate resources.