Introduction
JIANGSU KEYILAI NEW MATERIAL TECHNOLOGY CO.,LTD (江苏科奕莱新材料科技有限公司) is a Chinese specialty polyesters manufacturer based in Taixing, Jiangsu, with a business centered on PBT, TPEE/TPC-ET, and THF production, alongside related compounding and modified-material offerings. Established in 2018, the company positions itself as a developer and producer of co-polyester resins for applications in automobiles, electrical and electronic parts, cables, industrial components, footwear, and other engineered-plastics markets.
Keyilai’s portfolio reflects the role of engineering thermoplastics in the plastics industry: PBT for heat-resistant, dimensionally stable molded parts and TPEE for elastic, fatigue-resistant applications that require both rubber-like flexibility and engineering-plastic strength. The company also reports a production base in the Taixing Economic Development Zone chemistry park and an annual capacity structure that includes 60,000 tons of PBT, 24,000 tons of TPEE/TPC-ET, 10,000 tons of compounding, and 4,000 tons of THF.
History and Development
Jiangsu Keyilai New Material Technology Co., Ltd. was founded in 2018 and developed around co-polyester resin production rather than commodity plastics. Its establishment in the Taixing chemistry park placed it in a major Jiangsu chemical and materials cluster, supporting access to industrial infrastructure and downstream customers.
A second milestone has been the company’s expansion into a multi-product manufacturing structure, with capacity reported for PBT, TPEE/TPC-ET, compounding, and THF rather than a single polymer line. This indicates a strategy of serving both resin users and customers requiring customized or modified compounds.
A third development is its growing technical and certification footprint. Publicly available certification information shows the company’s energy management system certification covering production activities related to co-polyester resins, including PBT, PBAT, and TPEE. The company also states that it has obtained more than 20 relevant patents, suggesting an emphasis on product development and process improvement.
Business Operations and Segments
Keyilai’s operations are concentrated in engineering plastics and co-polyester resins. Its public product and application listings show a business model built around resin supply, material modification, and application-specific grades.
Its main business areas include:
- PBT resin
- TPC-ET / TPEE resin
- THF
- Modified compounds and related processing support
The company’s public materials and trade-show listings indicate that it serves both domestic and export markets, with international exhibition activity and shipment references suggesting an outward-facing sales model. Public supplier directories and contact pages also show that Keyilai markets itself as a plastics and rubber supplier rather than only as a local Chinese processor.
Products and Technologies
PBT
Polybutylene terephthalate (PBT) is a crystalline thermoplastic polyester made from PTA and BDO through polyesterification and polycondensation. Keyilai describes its PBT as having high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance, low water absorption, and good electrical performance.
These properties make PBT a common engineering plastic for precision molded parts, especially where dimensional stability and insulation are important.
TPEE / TPC-ET
Thermoplastic polyester elastomer (TPEE/TPC-ET) is a block copolymer combining hard polyester segments and soft ether segments, giving it a mix of elasticity and engineering strength. Keyilai markets its KYLflex® TPEE grades for rapid molding and for applications requiring mechanical resilience, heat stability, chemical resistance, abrasion resistance, and elasticity.
The company’s disclosed grades include flame-retardant TPEE products with UL94 performance classes such as V-0 and V-2, indicating attention to electrical and safety-oriented applications. Public technical tables also list properties such as hardness, melt flow, tensile strength, elongation at break, and melting point, which are typical selection criteria for molded and extruded engineered polymers.
THF
Keyilai also reports production of tetrahydrofuran (THF), a solvent and chemical intermediate used in the manufacture of polyether-based materials and in broader industrial chemistry. While the company’s public materials provide less technical detail on THF than on its polymers, inclusion of THF in the product slate suggests integration across parts of the polyester and elastomer value chain.
Applications and End Markets
Public application listings indicate that Keyilai’s materials are used in:
- Automotive parts
- Rail pads and railway-related components
- Wire and cable
- Specialty pipes
- Modified materials
- Industrial parts
- Footwear materials
Its TPEE documentation specifically emphasizes use in cable sheathing and insulation layers, where mechanical performance and durability matter. Other public references associate the company’s TPEE grades with footwear components such as upper filaments, midsoles, shoelaces, and tongue materials.
The company’s materials profile aligns with broader industry demand for plastics that combine lightweighting, electrical insulation, chemical resistance, and fatigue performance in transportation, electronics, and industrial applications.
Global Presence and Market Position
Keyilai is headquartered at No. 899, Yangjiang West Road, Economic and Development Zone, Taixing, Jiangsu, China. The company’s public exhibition presence on Chinaplas and other trade-fair platforms indicates active participation in the plastics industry’s regional and international sourcing networks.
Trade and customs references suggest that the company has engaged in cross-border shipments, including to buyers in India. Public profile pages and exhibition listings also position Keyilai among the Chinese specialty-resin suppliers visible at major plastics industry events, particularly in the TPEE and engineering-plastics segments.
Sustainability and Environmental Initiatives
Keyilai has a publicly listed energy management system certification covering its co-polyester resin production activities. That certification indicates a formalized approach to monitoring and improving energy use within its manufacturing scope.
The company’s inclusion in local environmental monitoring lists also shows that it operates within a regulated industrial environment in Taixing, a major chemical-industrial zone. As with many materials producers in China’s chemical sector, environmental performance, energy intensity, and regulatory compliance remain important operational considerations.
Financial Performance and Economic Impact
The company has not published detailed financial statements in the sources reviewed, so its revenue, profitability, and asset base cannot be verified here. However, its reported installed capacities indicate a meaningful industrial footprint for a relatively young specialty-materials producer.
Its economic role is best understood through industrial supply-chain contribution: it converts chemical feedstocks into engineering resins used by downstream processors in automotive, electrical, cable, industrial, and footwear manufacturing. In that sense, Keyilai participates in the higher-value segment of the plastics industry where formulation, consistency, and application performance are central to competitiveness.
Leadership and Corporate Governance
Public sources reviewed identify the company’s senior contacts primarily through sales and export profiles rather than a full governance disclosure. The company maintains direct corporate contact information and a formal address, but detailed board or executive biographies were not available in the sources used.
Available public information does indicate that Keyilai presents itself as a technically oriented organization with an R&D team and patent activity, which suggests that product development and customer support are part of its management priorities.
Innovations and Future Outlook
Keyilai’s innovation profile is tied to co-polyester resin development, grade differentiation, and application-specific performance tuning. The presence of multiple product families, including flame-retardant grades and fast-molding TPEE formulations, suggests continued work on refining thermal, mechanical, and processing characteristics for downstream users.
Its future prospects will likely depend on several industry factors:
- demand for engineering plastics in automotive electrification and lightweight design
- continued growth in wire and cable materials
- broader substitution toward high-performance thermoplastics in industrial parts
- regulatory and customer pressure for energy efficiency and process control in chemical manufacturing
If you want, I can also produce a shorter encyclopedia-style version, a Chinese-language version, or a table summarizing Keyilai’s products, capacities, and applications.
References
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CPS+ eMarketplace. (n.d.). JIANGSU KEYILAI NEW MATERIAL TECHNOLOGY CO.,LTDJIANGSU KEYILAI NEW MATERIAL TECHNOLOGY CO.,LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1001812Link