Sinopec Yizheng Chemical Fibre Company Limited (hereinafter referred to as "Yizheng Chemical Fibre") is a wholly owned subsidiary of Sinopec. Established in 1978 and located in Yizheng, Jiangsu Province, the company covers an area of approximately 10 square kilometers and is one of China's leading R&D and manufacturing bases for high-end polyester and specialty fibers.
The company operates a fully integrated PTA-PET industrial chain with an annual PTA production capacity of 1.42 million tons and a total polyester polymerization capacity of 2.4 million tons per year. Its product portfolio covers fiber-grade, bottle-grade, and film-grade polyester chips, with differentiated products accounting for more than 99% of total output. The company ranks among the world's leading polyester manufacturers.
Supported by Sinopec's national R&D platform, Yizheng Chemical Fibre has established comprehensive laboratories for polymerization, spinning, and film materials research. It has led the development of multiple national polyester industry standards, and several polyester chip products have received China's Manufacturing Single Champion Award and Patent-Intensive Product Certification. It is also the only enterprise in China capable of conducting complete industrial-scale R&D and commercialization across the entire film-grade polyester chip and BOPET film value chain.
Yizheng Chemical Fibre manufactures polyethylene terephthalate (PET) chips that are categorized into three major product series based on downstream applications: fiber-grade, bottle-grade, and film-grade polyester chips.
All products comply with ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications. They feature uniform pellet shape, low dust generation, stable intrinsic viscosity, excellent thermal stability, and consistent processing performance suitable for a wide range of industrial applications.
Film-grade polyester chips represent Yizheng Chemical Fibre's flagship product line and have been recognized as a National Manufacturing Single Champion Product.
Representative grades include FD501, FG611, and environmentally friendly FG650, covering applications such as ultra-thin films, high-transparency optical films, photovoltaic films, and low-extractable environmentally friendly film materials.
Technical and Market Advantages
Typical Applications
In early 2025, Yizheng Chemical Fibre commissioned China's first 500,000-ton-per-year medium-viscosity short-process bottle-grade PET production line.
The facility adopts Sinopec's proprietary low-carbon manufacturing technology, reducing carbon emissions by more than 20% compared with conventional processes while achieving premium-grade product quality exceeding industry standards.
Major product grades include:
Yizheng Chemical Fibre is the first PET bottle resin producer in China to obtain certifications from both Coca-Cola and PepsiCo.
The products offer low acetaldehyde content, high transparency, excellent oxidation resistance, and comply with food-contact safety standards. They are widely used in beverage containers, food packaging, PET sheets, and polyester strapping materials.
Fiber-grade polyester chips include various specifications such as:
These materials are widely applied in polyester filament, staple fiber, home textiles, industrial textiles, and waterless dyeing technologies.
Among them, the LCPET specialty chip is China's first industrialized low-oligomer polyester chip specifically designed for low-pressure waterless dyeing.
Its advantages include:
Conventional fiber-grade chips also provide excellent spinnability, extend spinning component service life, and are widely used in apparel, bedding, filtration materials, automotive interiors, and industrial fibers.
In 2025, Yizheng Chemical Fibre introduced China's first fully automated robotic color-value inspection system for polyester chips.
The intelligent testing line enables unmanned standardized quality inspection, significantly improving batch consistency while reducing human inspection errors.
The company's polymerization, crystallization, solid-state polymerization, and viscosity enhancement technologies are all independently developed by Sinopec and rely entirely on proprietary intellectual property rather than imported process packages.
Yizheng Chemical Fibre is also expanding its recycled PET product portfolio.
Its recycled PET chips have obtained Global Recycled Standard (GRS) certification, while annual recycled polyester production exceeded ten thousand tons in 2025, with recycling capacity continuing to expand.
The new 500,000-ton bottle-grade PET facility adopts an energy-efficient short-process technology that significantly reduces steam and electricity consumption.
Its environmentally friendly film-grade polyester chips are manufactured without antimony-based catalysts, making them suitable for high-end food and medical packaging applications.
Meanwhile, the company is promoting digital supply chain transformation and has established a green logistics cooperation platform with JD Government & Enterprise to reduce carbon emissions across the entire polyester supply chain.
Yizheng Chemical Fibre's polyester chips serve six major downstream industries:
Its products are supplied throughout China and exported to international markets.
Film-grade polyester chips have broken the long-standing dependence on imported high-end film materials, supporting China's photovoltaic and display industries with domestically produced raw materials.
Bottle-grade polyester chips serve global beverage and consumer goods manufacturers, while fiber-grade products support the green transformation of China's textile industry.
Backed by Sinopec's stable integrated supply chain, large-scale production capability, and customized product development services, Yizheng Chemical Fibre has become a reliable global supplier of polyester raw materials.
As one of the pioneers of China's polyester industry, Sinopec Yizheng Chemical Fibre Company Limited continues to promote the development of high-end, localized, and sustainable PET materials through its large-scale polyester chip production capacity, comprehensive product portfolio, and independently developed polymerization technologies.
From beverage bottles and textile fibers to photovoltaic films and advanced optical materials, Yizheng Chemical Fibre's polyester chips support both everyday consumer products and strategic emerging industries. With its integrated manufacturing platform, technological innovation, and commitment to sustainable development, the company has become one of the most important suppliers in China's polyester industry and an increasingly influential participant in the global PET value chain.
