Shanghai Secco Petrochemical Co., Ltd. is a national-level large-scale Sino-foreign joint venture petrochemical enterprise, jointly established by Sinopec Corporation, China Petroleum & Chemical Corporation (Sinopec Group), and BP PLC of the United Kingdom. The company builds a complete industrial chain centered on ethylene, covering olefins, aromatics, and downstream synthetic resins. Its core business focuses on the research, development, production, and sale of ethylene and its derivatives. Key products include styrene, polypropylene, high-density polyethylene (HDPE) and low-density polyethylene (LDPE), butadiene, and aromatics, which are widely applied in packaging, automotive, construction, medical, and daily chemical industries. Leveraging an ethylene cracker with an annual capacity of 1.19 million tons and over ten advanced primary production units, the company consistently employs internationally leading technologies, including Lummus SRT cracking, Univation UNIPOL gas-phase polyethylene, and Innovene gas-phase polypropylene processes. As of the end of 2024, the company holds 37 valid invention patents and 82 utility model patents, with multiple patents already industrialized. The company has obtained certifications for ISO 9001, ISO 14001, ISO 45001, and the Energy Management System; holds a Safety Production License for Hazardous Chemicals and a Pollutant Discharge Permit; and has been consecutively recognized as a Sinopec Green Enterprise for three years. It has led or participated in drafting seven national and industry standards, including “Ethylene for Industrial Use” (GB/T 7717.1–2022). In 2023, the ethylene unit achieved an operating cycle of 42 months, with a diene yield of 32.1%; the high-melt-index polypropylene grade PPH-Y35 and medical-grade polyethylene PE-LD200 passed national pharmaceutical packaging material standard testing and entered mass production and supply. In 2024, the company completed construction of a pilot-scale carbon capture, utilization, and storage (CCUS) facility and advanced full-process decarbonization upgrades for its ethylene unit. Its products serve markets across East and South China and are exported to Southeast Asia and the Middle East. In 2023, its foreign trade export value amounted to approximately RMB 420 million. Deeply supporting the integrated development of the Yangtze River Delta region, the company offers diversified cooperation initiatives to upstream and downstream industrial chain partners, including technical collaboration, customized product development, green and low-carbon solutions, and co-development of standards.