Engineering plastics – Mitsui Chemicals and Polyplastics Strengthen Global Growth Through Strategic Marketing Alliance to Accelerate ARLEN and AURUM Engineering Plastics Expansion Across Automotive, Electronics, and Industrial Markets Worldwide2026 – Polymers and Petrochemicals prices 03-11-2025
Engineering plastics – Full price table (27/10/2025 → 03/11/2025)
| ITEM | 20/10/2025 | 03/11/2025 | +/− |
|---|---|---|---|
| Bottle grade PET chips domestic market | 5,690 yuan/ton | 5,720 yuan/ton | +30 |
| Chinese bottle-grade PET chips FOB export price | 740 $/ton | 755 $/ton | +15 |
| LDPE CFR Est China | 1,040 $/ton | 1,035 $/ton | -5 |
| PET Semidull — Fiber chips | 5,520 yuan/ton | 5,570 yuan/ton | +50 |
| PET Bright — Fiber chips | 5,550 yuan/ton | 5,600 yuan/ton | +50 |
| Pure Terephthalic Acid PTA domestic market | 4,460 yuan/ton | 4,535 yuan/ton | +75 |
| Pure Terephthalic Acid PTA FOB China | 600 $/ton | 605 $/ton | +5 |
| Monoethyleneglycol (MEG) South China | 4,250 yuan/ton | 4,200 yuan/ton | -50 |
| Monoethyleneglycol (MEG) CFR China | 492 $/ton | 485 $/ton | -7 |
| Paraxylene PX FOB Taiwan market | 792 $/ton | 797 $/ton | +5 |
| Paraxylene PX FOB South-Korea market | 793 $/ton | 798 $/ton | +5 |
| Paraxylene PX FOB EU market | 824 $/ton | 829 $/ton | +5 |
| Polyester filament POY 150D/48F domestic market | 6,400 yuan/ton | 6,500 yuan/ton | +100 |
| Recycled Polyester filament POY domestic market | 6,000 yuan/ton | 6,150 yuan/ton | – |
| Polyester filament DTY 150D/48F domestic market | 7,750 yuan/ton | 7,800 yuan/ton | +50 |
| Polyester filament FDY 68D/24F | 7,300 yuan/ton | 7,400 yuan/ton | +50 |
| Polyester filament FDY 150D/96F domestic market | 6,650 yuan/ton | 6,700 yuan/ton | +50 |
| Polyester staple fiber 1.4D 38mm domestic market | 6,365 yuan/ton | 6,400 yuan/ton | +35 |
| Caprolactam (CPL) domestic market | 8,050 yuan/ton | 8,050yuan/ton | – |
| Caprolactam (CPL) CFR China | 1,250 $/ton | 1,310 $/ton | +60 |
| Nylon 6 chips — overseas market | China (CFR): USD 1,550/kgUSA: USD 2,800/kg
Germany: USD 1,950/kg Brazil: USD 2,920/kg Japan: USD 2,750/kg |
China (Northeast Asia): $1.43/kg Southeast Asia: $1.78/kg Middle East: $1.65/kg Europe $2.55/kg North America $2.80/kg |
– |
| Nylon 6 chips conventional spinning domestic market | 8,800 yuan/ton | 8,700 yuan/ton | -100 |
| Nylon 6 chips high speed spinning domestic market | 9,150 yuan/ton | 9,100 yuan/ton | -50 |
| Nylon 6.6 chips domestic market | 14,300 yuan/ton | 14,200 yuan/ton | -100 |
| Nylon6 Filament POY 86D/24F domestic market | 11,300 yuan/ton | 11,300 yuan/ton | – |
| Nylon6 Filament DTY 70D/24F domestic market | 13,500 yuan/ton | 13,500 yuan/ton | – |
| Nylon6 Filament FDY 70D/24F | 11,800 yuan/ton | 11,800 yuan/ton | – |
| Spandex 20D domestic market | 26,700 yuan/ton | 26,700 yuan/ton | – |
| Spandex 30D domestic market | 26,200 yuan/ton | 26,200 yuan/ton | – |
| Spandex 40D domestic market | 23,000 yuan/ton | 23,000 yuan/ton | – |
| Adipic Acid China domestic market | 7,030 yuan/ton | 7,250 yuan/ton | +230 |
| Adipic Acid Europe market | 1,84 $/ton | 1,88 $/ton | +40 |
| Benzene domestic market East China | 5,500 yuan/ton | 5,400 yuan/ton | -100 |
| Benzene CFR China | 692 $/ton | 736 $/ton | +44 |
| Ethylene South East market | 755 $/ton | 730 $/ton | -25 |
| Ethylene NWE market CIF | 692 $/ton | 663 $/ton | -29 |
| Acrylonitrile (ACN) domestic market | 7,850 yuan/ton | 8,050 yuan/ton | +200 |
| Acrylonitrile ACN Southeast Asia | 1,115 $/ton | 1,15 $/ton | -35 |
| Acrylic staple fiber (ASF) CFR China | 13,855 yuan/ton | 13,855 yuan/ton | – |
| VSF viscose staple fiber | 13,100 yuan/ton | 13,050 yuan/ton | -50 |
| PP Powder domestic market | 6,510 yuan/ton | 6,420 yuan/ton | -90 |
| Naphtha overseas market | 527 $/ton | 542 $/ton | +15 |
| Phenol domestic market (Jinan Dezheng / Yanshan Petrochemical, Shandong) | 6,550 yuan/ton | 6,230 yuan/ton | -320 |
| Recycled PET | 4,250 yuan/ton | 4,250 yuan/ton | – |
Engineering plastics
Strategic Marketing Collaboration in Engineering Plastics
Mitsui Chemicals, Inc. (Tokyo: 4183) and Polyplastics Co., Ltd. (a wholly-owned subsidiary of Daicel Corporation) have announced a contract to reshape how their high-performance engineering plastics are marketed worldwide. 三井化学株式会社+2hydrocarbonengineering.com+2
The agreement covers the brands ARLEN® and AURUM® – both flagship grades from Mitsui Chemicals. Under the new setup, from January 1, 2026 onward, Polyplastics will exclusively handle marketing operations including customer interface, new customer acquisition and technical support. Meanwhile, Mitsui Chemicals will remain responsible for research and development, manufacturing and logistics for these brands. 三井化学株式会社+1
Why the Partnership Matters
This collaboration signals a clear strategic shift: marketing and solution-delivery are now being delegated to a specialist, while production and innovation remain firmly with the original developer. By handing over marketing responsibilities to Polyplastics, Mitsui Chemicals intends to capitalise on Polyplastics’ customer network and solution capabilities to drive growth in key sectors such as automotive, electrical and electronics markets. 三井化学株式会社
On the flip side, Polyplastics gains a meaningful boost: adding the ARLEN® and AURUM® brands to its marketing portfolio enhances its ability to serve a broader customer base and deepen its solution offering in high-performance engineering plastics. chemxplore.com
How the Responsibilities Are Divided
Mitsui Chemicals retains:
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Research & development for ARLEN® and AURUM® brands
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Manufacturing, quality assurance and logistics
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Commercial distribution and operational backbone of the products (unchanged) 三井化学株式会社
Polyplastics takes on:
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Exclusive marketing of ARLEN® and AURUM® from Jan 1 2026
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Customer engagement, technical support and new client development
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Leveraging its existing network and solution ecosystem to promote the products globally hydrocarbonengineering.com
By preserving manufacturing and distribution continuity under Mitsui Chemicals, the transition is designed to be seamless for customers, with no changes planned for commercial distribution or procedures. 三井化学株式会社
Market Implications and Growth Drivers
Demand for high-performance engineering plastics continues to expand in mobility, digital devices and advanced electronics. In this context, the partnership is well-timed: it empowers Mitsui Chemicals to accelerate business growth by leveraging Polyplastics’ strengths, while customers benefit from stronger marketing, technical service and solutions support. chemxplore.com
Moreover, Polyplastics’ solution-oriented approach aligns well with market trends that favour value-added services, customisation and integrated support, rather than commodity sales alone. This move may give both companies a competitive edge in an industry undergoing rapid innovation and diversification. Engineering plastics
Future Outlook & Strategic Next Steps
Both firms explicitly mention their intention to explore further collaboration beyond the current marketing contract. This suggests that the alliance may evolve into deeper joint initiatives, possibly covering product development, market expansion or integrated value-chain offerings. 三井化学株式会社
In addition, the contract is tied into the broader reorganisation of the Daicel Group: On October 16, 2025, Daicel announced plans to split Polyplastics’ engineering plastics business effective April 1, 2026. From that date, the marketing contract will transfer to Daicel as part of the reorganisation. 三井化学株式会社+1
This structural change underscores the strategic weight of the alliance and hints at a more integrated model within the Duicel group’s engineering plastics portfolio.
Conclusion
This partnership marks a significant milestone for both Mitsui Chemicals and Polyplastics: it realigns responsibilities to play to each company’s strengths – Mitsui in innovation and production, Polyplastics in customer-facing marketing and solutions. With the agreement in place from January 2026 and tied to broader group reorganisation, the move signals a proactive response to evolving market demands for high-performance and application-driven engineering plastics.
For customers and industry watchers, the collaboration speaks to growing emphasis on solution-led sales, closer customer engagement and accelerated product reach. In short, it’s a forward-looking strategy designed to strengthen market position and growth potential in a fast-moving segment of the plastics industry.
Engineering plastics
