Who we are
Yizheng Chemical Fiber Corporation is the collective name for Sinopec Yizheng Chemical Fiber Co., Ltd. and Sinopec Group Asset Management Co., Ltd. Yizheng Branch (abbreviated as Asset Company Yizheng Branch). Located in Yizheng City, Jiangsu Province, it covers a land area of 10 square kilometers. Formerly known as Yizheng Chemical Fiber Industrial Joint Company, the project was initiated in 1978, the entity was established in 1981, restructured into a joint stock company in 1993, and incorporated into Sinopec in 1998....
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Sustainability
Environmental Stewardship
Adhere to the synchronous development of industrial production and environmental protection.
Emission Compliance
Ensure stable and compliant emissions of pollutants
Accident Prevention
Prevent major environmental pollution accidents, and build a green and civilized enterprise
Our Culture
Culture
Provide customers with more valuable chemical supply solutions
Core Values
Putting oneself in others' shoes, achieving mutual benefits for employees, customers, and shareholders
Business Philosophy
Take the market as the navigation mark and the customer as the center
Corporate Mission
Create value for customers, employees, and shareholders
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Sinopec Yizheng Chemical Fibre Company Limited: China's Leading Domestic Polyester Chip Producer with a Complete Polyester New Materials Value Chain
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.2.1 Film-Grade Polyester ChipsFilm-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 AdvantagesSuccessfully replaced imported high-end film-grade polyester raw materials through proprietary continuous polymerization technology for high-additive formulations.Holds approximately 50% of China's domestic market share and around 27% of the global market.Contributed significantly to increasing China's localization rate of film-grade polyester materials to approximately 90%.Typical ApplicationsPhotovoltaic backsheet filmsOptical base filmsElectronic release filmsArchitectural heat-insulation filmsSpecialty food packaging filmsProduction of ultra-thin BOPET films below 8 μm2.2 Bottle-Grade Polyester ChipsIn 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:BG80 – Water bottle gradeBG801 – Hot-fill juice and tea bottle gradeBG802 – Edible oil bottle gradeBG85 – Carbonated beverage bottle gradeYizheng 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.2.3 Fiber-Grade Polyester ChipsFiber-grade polyester chips include various specifications such as:BrightSemi-dullFull-dullCationic dyeableLow-crystallization LCPET specialty gradesThese 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:Significantly reduced oligomer precipitationApproximately 10% lower dye consumptionAround 15% energy savingsImproved environmental performance for textile productionConventional 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.Intelligent Quality ControlIn 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.Proprietary End-to-End TechnologyThe 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.Low-Carbon ManufacturingThe 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:Food packagingPhotovoltaic new energyOptical and electronic materialsTextile and apparelMedical materialsBuilding materialsIts 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.
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Sinopec Yizheng Chemical Fibre: One of the World's Leading Polyester Staple Fiber Production Bases with a Comprehensive Portfolio of Differentiated PSF Products
Sinopec Yizheng Chemical Fibre Company Limited (hereinafter referred to as "Yizheng Chemical Fibre") is a wholly owned subsidiary of Sinopec located in Yizheng, Jiangsu Province. As Sinopec's core polyester fiber manufacturing platform, the company has established a fully integrated industrial chain covering PTA, polyester chips, and polyester fibers, making it one of the world's leading manufacturers of polyester staple fiber (PSF).Following the full commissioning of its 230,000-ton-per-year intelligent direct melt spinning polyester staple fiber project in 2023, the company's total polyester staple fiber production capacity reached 1.33 million tons annually. This output is equivalent to the annual production of more than 26 million mu (approximately 1.73 million hectares) of high-quality cotton fields. Yizheng Chemical Fibre operates 34 specialized production lines for polyester staple fiber and hollow fibers, offering nearly one hundred product specifications across virgin, recycled, and functional fiber categories. Its production capacity and diversified product portfolio rank among the world's leading producers.Supported by Sinopec's national R&D platform, the company operates advanced polymerization and spinning laboratories and has led the formulation of multiple industry standards for polyester staple fiber. Its products have obtained ISO 9001 Quality Management System, ISO 14001 Environmental Management System, Global Recycled Standard (GRS), and Green Fiber certifications. Yizheng Chemical Fibre's polyester staple fiber has also been designated as an inspection-exempt delivery brand by the Zhengzhou Commodity Exchange, while its hollow conjugated filling fiber has been recognized as an annual inspection-exempt raw material supplier for Luolai Lifestyle, one of China's leading home textile brands.Polyester Staple Fiber (PSF) is manufactured by melting polyester chips, spinning the polymer into filaments, drawing the fibers, and cutting them into staple lengths.Yizheng Chemical Fibre categorizes its polyester staple fiber products into seven major series according to downstream applications:Cotton-type polyester staple fiberHollow conjugated polyester staple fiberSpunlace nonwoven polyester staple fiberLow-melting polyester staple fiberSewing thread polyester staple fiberRecycled polyester staple fiberLCPET low-oligomer environmentally friendly polyester staple fiberAll products feature low defect rates, uniform crimp, stable dry heat shrinkage, and excellent spinning performance.2.1 Cotton-Type and Medium-Length Conventional Polyester Staple FiberThe standard product range covers fineness from 0.9 to 3.33 dtex and fiber lengths from 38 mm to 100 mm, available in bright, semi-dull, and full-dull grades.High-tenacity, low-elongation cotton-type staple fiber is suitable for high-count yarns, apparel fabrics, and wool-like textiles, offering excellent yarn evenness and vibrant dyeing performance.Medium-length wool-type staple fiber can be spun alone or blended with wool for woolen fabrics and overcoat materials.Bright polyester staple fiber for sewing thread accounts for more than 52% of China's domestic market, successfully replacing imported products and supporting China's sewing thread export industry. The company has become one of the world's major suppliers of raw materials for sewing thread manufacturing.2.2 Hollow Polyester Staple FiberHollow polyester staple fiber is one of Yizheng Chemical Fibre's flagship products for home textile filling applications.Featuring permanent three-dimensional crimp, excellent resilience, lightweight structure, thermal insulation, mildew resistance, and antibacterial properties, the product is available in various differentiated specifications, including single-hole, multi-hole, down-like, and silk-like filling fibers.Typical applications include:Premium quiltsPillowsCold-weather apparelMattressesMedical and healthcare filling materialsHigh-end hollow fiber products achieve a differentiation rate of approximately 20%. They are supplied to leading home textile manufacturers such as Luolai Lifestyle, with long-term inspection-exempt supplier status. Product sales have consistently maintained a 100% sales-to-production ratio.2.3 Polyester Staple Fiber for Spunlace Nonwoven FabricsYizheng Chemical Fibre holds more than 70% of China's high-end spunlace polyester staple fiber market.Manufactured on fully enclosed intelligent clean production lines, the products effectively minimize fiber contamination, gel particles, and foreign matter, making them specifically designed for spunlace nonwoven production.Applications include:Medical gauzeWound dressingsDisinfectant wipesDisposable hygiene productsPremium industrial cleaning wipesSince 2018, the company has continuously been recognized as an Outstanding Supplier by China's nonwoven industry, becoming one of the benchmark suppliers of medical-grade polyester staple fiber.2.4 Low-Melting Polyester Staple FiberProduced using Sinopec's proprietary direct melt spinning technology, this product achieves zero VOC emissions during manufacturing and offers outstanding environmental performance.Its low-temperature bonding capability eliminates the need for additional adhesives, making it ideal for:Automotive interior materialsFiltration mediaGeotextilesComposite nonwoven fabricsFootwear interlining materialsThe product significantly reduces downstream processing energy consumption and environmental emissions.2.5 GRS-Certified Recycled Polyester Staple FiberYizheng Chemical Fibre obtained Global Recycled Standard (GRS) certification in 2021 and Green Fiber Certification in 2022, making it one of China's earliest recycled polyester staple fiber products with dual environmental certifications.Each ton of recycled polyester staple fiber consumes approximately 40,000 to 50,000 discarded PET beverage bottles, significantly reducing virgin raw material consumption and carbon emissions.The recycled product portfolio includes:Recycled sewing thread fiberRecycled full-dull textile-grade fiberAnnual production and sales exceeded 10,000 tons in 2025, with monthly orders increasing from approximately 120 tons during the initial launch stage to more than 1,000 tons. The products are primarily exported for high-end recycled yarns and sustainable workwear fabrics and are also used in the company's "Yiran®" recycled antibacterial textile series.2.6 LCPET Low-Oligomer Environmentally Friendly Polyester Staple FiberThis innovative industrial product was independently developed by Yizheng Chemical Fibre.Through molecular modification technology, the product significantly reduces oligomer content and is specially designed for low-pressure waterless dyeing processes.Key advantages include:Waterless dyeing yield exceeding 98%Approximately 10% reduction in dye consumptionSignificant reduction in wastewater dischargeElimination of white powder deposition during conventional package dyeingExtended equipment cleaning intervalsThe product provides an important raw material solution for the textile industry's low-carbon transformation and has successfully completed commercial-scale production validation with multiple leading textile manufacturers.Integrated Industrial ChainWith in-house PTA and polyester chip production facilities, Yizheng Chemical Fibre adopts direct melt spinning technology that eliminates the traditional chip pelletizing process.Compared with conventional chip spinning routes, this integrated production method reduces both energy and material consumption while improving product consistency.The company also employs automated warehousing systems, online color monitoring, and real-time physical property inspection to ensure excellent batch stability, meeting stringent futures delivery standards and international export requirements.Intelligent ManufacturingThe 230,000-ton intelligent polyester staple fiber project incorporates:Fully automated high-rise warehousesRobotic quality inspection systemsOnline intrinsic viscosity monitoringDigital process control from raw material feeding to finished product shipmentThese technologies substantially reduce human error while enhancing large-scale production reliability.Green ManufacturingLow-melting polyester staple fiber achieves zero VOC emissions during production.Recycled polyester staple fiber has established a complete closed-loop recycling system covering waste plastic collection, recycling, and fiber production.The new generation of direct melt spinning technology significantly reduces steam and electricity consumption compared with traditional manufacturing processes, supporting global carbon neutrality goals and sustainable textile procurement requirements.Customized Product DevelopmentYizheng Chemical Fibre's research institute provides customized functional polyester staple fibers tailored to customer requirements, including:Antibacterial fibersMoisture-wicking fibersCationic dyeable fibersFlame-retardant fibersThese customized products serve a broad range of industries, including textiles, healthcare, automotive, construction materials, and filtration.Yizheng Chemical Fibre's polyester staple fibers are widely used across six major downstream industries:Home textile filling materialsApparel yarns and sewing threadsMedical and hygiene nonwoven fabricsAutomotive interior materialsGeotextiles and filtration materialsSustainable recycled textilesIts spunlace polyester staple fiber, bright sewing thread fiber, and hollow filling fiber consistently rank among the leading products in China's domestic market.The company's products are supplied throughout China and exported in large volumes to Southeast Asia, Europe, North America, the Middle East, and other international markets.Backed by Sinopec's stable supply chain, inspection-exempt futures delivery qualification, and comprehensive environmental certification system, Yizheng Chemical Fibre has become a trusted raw material supplier for leading textile, nonwoven, and home textile manufacturers worldwide.As one of the world's largest polyester staple fiber production bases, Sinopec Yizheng Chemical Fibre Company Limited continues to advance the development of high-performance, functional, and sustainable polyester staple fibers.From household textiles and apparel to medical protection products and recycled green textiles, the company's comprehensive polyester staple fiber portfolio supports the modernization, self-reliance, and sustainable development of China's polyester fiber industry while providing high-quality raw materials to customers around the world.
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Sinopec Yizheng Chemical Fiber: An In-Depth Look at China's Leading Full-Series PBT Resin Manufacturing Base
Sinopec Yizheng Chemical Fiber Co., Ltd. (hereinafter referred to as Yizheng Chemical Fiber), located in Yizheng, Jiangsu Province, is one of China's key polyester production bases developed under the national Five-Year Plans from the Sixth through the Fifteenth. The company officially became part of Sinopec in 1998 and has since been positioned as a core R&D and manufacturing platform for high-end polyester materials, specialty fibers, and engineering plastics.With an overall production capacity exceeding 6.5 million tons per year, the company operates eight major business segments, including PTA, polyester chips, specialty fibers, and engineering plastics. Backed by a 1 million-ton/year PTA plant and a 100,000-ton/year BDO production facility, Yizheng Chemical Fiber has established a fully integrated PBT industrial chain, covering upstream raw materials through downstream resin production. This integrated structure ensures stable product quality, reliable supply, and competitive production costs.Within China's polyester new materials industry, Yizheng Chemical Fiber holds several leading positions. Its polyester staple fiber ranks among the world's largest by production and sales volume, while its film-grade PET chips have been recognized as a National Manufacturing Single Champion Product. The company's PBT resin technology and market share remain among the industry's first tier, making it one of Eastern China's leading suppliers of high-performance engineering plastics.Yizheng Chemical Fiber was one of the earliest Chinese enterprises to enter the non-fiber polyester market. It operates the world's first commercial PBT production line utilizing the PTA continuous esterification process, which differs significantly from the conventional BDO transesterification route by delivering lower energy consumption and higher product purity.In 2019, the company's new 60,000-ton/year PBT resin production line was successfully commissioned, bringing the total number of dedicated PBT production lines to three and increasing total annual capacity to 180,000 tons. This expansion raised the company's domestic PBT production share from approximately 9% to 15%.The three production lines are designed for flexible manufacturing under a "dedicated production line, dedicated product grade, dedicated customer" model, allowing efficient switching between standard grades and high-performance specialty materials to satisfy customized industrial requirements.The production facilities have also completed comprehensive localization upgrades, with equipment localization exceeding 95% and proprietary process software independently developed by the company. At the same time, Yizheng Chemical Fiber has expanded into high-value polyester materials including PBST biodegradable polyester, high-viscosity specialty PBT, and TPEE thermoplastic polyester elastomers, continuously enriching its advanced polyester portfolio.Leveraging years of technological innovation, the company's "Key Technologies and Industrialization of PBT and Biodegradable High-Performance Polyesters" project received the Second Prize of the 2025 Jiangsu Provincial Science and Technology Innovation Award, demonstrating official recognition of its technological leadership.Yizheng Chemical Fiber has established a comprehensive PBT resin product portfolio covering six major application sectors. As thermoplastic polyester engineering plastics, these products generally offer rapid crystallization, excellent melt flowability, superior electrical insulation, outstanding chemical resistance, excellent thermal stability, and dimensional stability.Modified PBT Resins (GX110, GX111, GX112, GX121, etc.)These general-purpose injection molding grades feature crystallization indices ranging from 0.65 to 1.05 and provide short molding cycles. After glass fiber reinforcement, mechanical strength and heat resistance are significantly improved, making them ideal materials for automotive components and electrical appliances. Low-extractable clean grades such as GX112J and GX121J are suitable for refrigerant-contact applications and environmentally friendly food-contact products.Optical Fiber Cable Grade PBT (GL221, GL223, GL236)These grades feature low hydrolysis, low shrinkage formulations with excellent weather resistance and corrosion resistance. Finished products exhibit exceptional dimensional stability and have been widely used in optical fiber cable buffer tubes with comprehensive telecommunications industry certifications.Fiber Spinning Grade PBT (XW321)Designed for excellent spinnability, uniform coloration, low yarn breakage rates, and extended filtration cycles, these grades are suitable for elastic fibers and industrial filtration fabrics.Film Grade PBT (BM433, BM434)These high-transparency, high-purity grades offer excellent compatibility with multilayer co-extrusion processes, producing films with uniform gloss for optical films and multilayer packaging films.Color Masterbatch Carrier Grade PBT (SM512, SM521)These products provide outstanding thermal stability, excellent pigment dispersion, and superior anti-migration performance, making them ideal carrier resins for plastic color masterbatch production.As a lightweight, high-performance engineering plastic, PBT resin from Yizheng Chemical Fiber serves a wide range of industrial applications.Automotive IndustryModified PBT is widely used in lamp holders, brake system components, fuel valve bodies, interior structural parts, and new energy vehicle battery housings, delivering lightweight performance, excellent heat resistance, and long-term dimensional stability.Electrical and ElectronicsPBT is commonly applied in IC sockets, electrical switches, terminal blocks, household appliance housings, and high-voltage insulation components, benefiting from its superior dielectric properties and suitability for precision thin-wall injection molding.TelecommunicationsOptical cable buffer tubes and communication module housings utilize specialized PBT grades for their excellent long-term weatherability and aging resistance in outdoor environments.Textiles and FilmsPBT is used in elastic polyester fibers, optical packaging films, and industrial filtration fabrics requiring excellent processing performance and durability.Chemical Supporting MaterialsApplications include plastic color masterbatch carriers, composite base materials for TPEE elastomers, and environmentally friendly, low-extractable medical device components.Integrated Industrial ChainWith in-house PTA and BDO production, Yizheng Chemical Fiber minimizes dependence on external raw material supply, ensuring stable production and reliable deliveries.Industry-Leading Production TechnologyThe company's proprietary PTA continuous esterification technology delivers lower energy consumption and significantly reduced impurity levels compared with conventional production processes.Comprehensive Product PortfolioFrom general injection molding grades to optical cable, fiber spinning, film, food-contact, and clean-grade materials, the company provides complete one-stop solutions for compounders, injection molders, cable manufacturers, and film producers.State-Owned Enterprise Quality Assurance and Green DevelopmentSupported by Sinopec's comprehensive quality management system, the company continues to develop biodegradable polyester materials while balancing high industrial performance with sustainable manufacturing.Strategic Geographic LocationLocated in Jiangsu within the Yangtze River Delta, Yizheng Chemical Fiber enjoys close proximity to China's major automotive, electronics, and chemical manufacturing clusters, enabling efficient logistics and rapid product delivery.Driven by the rapid growth of new energy vehicles, 5G communications, and lightweight industrial equipment, global demand for high-performance engineering plastics continues to expand.Supported by its annual production capacity of 180,000 tons and comprehensive specialty PBT product portfolio, Yizheng Chemical Fiber continues to accelerate the domestic substitution of imported high-end PBT materials. Meanwhile, the company is actively advancing biodegradable polyester technologies, establishing a dual development strategy that integrates traditional engineering plastics with sustainable bio-based materials.Through continuous technological innovation and integrated industrial capabilities, Yizheng Chemical Fiber is strengthening China's self-sufficiency in advanced polyester materials while providing reliable raw material support for the country's rapidly evolving new materials industry.
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