Hengyi Petrochemical Co., Ltd. is a leading large-scale petrochemical enterprise listed on the Shenzhen Stock Exchange and serves as the core publicly traded operating platform for the Zhejiang Hengyi Group. The company adheres to a core strategy centered on the integration of oil refining and synthetic fiber production—encapsulated by the concept of "one drop of oil, two types of fiber"—and has established a comprehensive, integrated industrial chain spanning "oil refining – PTA – polyester – nylon." It has built a unique, dual-pillar business model driven by both polyester and nylon. The company operates a multi-million-tonne overseas refining and chemical complex in Brunei. Domestically, it holds interests in or controls PTA production capacity totaling 21.5 million tonnes, alongside a polymerization capacity exceeding 14 million tonnes. Its product portfolio includes PTA, PET bottle-grade chips (including recycled PET/rPET), caprolactam, nylon chips, and polyester filament, with products sold to over 80 countries and regions worldwide.
Through its equity stakes in and control over the "Yisheng" series of PTA and PET production enterprises, Hengyi Petrochemical channels paraxylene (PX)—a key aromatic feedstock produced at its Brunei refinery—to its domestic polyester raw material plants. This integration creates synergy across the upstream and downstream segments, significantly reducing raw material costs. Hengyi Petrochemical is actively expanding into recycled polyester and the R&D of functional new materials, while increasing investment in green, low-carbon technologies to drive a transition toward a lower carbon footprint. With robust capabilities in R&D, manufacturing, and global trade, the company has also implemented a digital management system. It maintains strict oversight of production safety and environmental emissions, continuously optimizes its product mix, and increases the proportion of high-value-added new materials. As such, it stands as a benchmark among China’s private, integrated petrochemical companies.
