Japanese group for high-performance materials such as aramid, carbon fiber, polycarbonate and CFRTP as well as healthcare products
Teijin Limited
Tokyo (Headquarters) · Osaka (Headquarters) · Matsuyama, Ehime · Iwakuni, Yamaguchi · Mihara, Hiroshima · Mishima, Shizuoka · Ibigawa, GifuNew on Amplifa
About Teijin Limited
Teijin Limited was founded in 1918 in Japan and is today a diversified technology group with around 15,689 employees and 126 group companies (as of 31.03.2026). The business is divided into two fields: Materials (Aramid, Carbon Fibers, Composites, Resin & Plastic Processing, Battery & Semiconductor Solutions, Fibers & Products Converting) and Healthcare (Pharmaceuticals, Home Therapy, Functional Foods). In the Materials field, high-performance materials such as para- and meta-aramid (Technora®, Twaron®, Teijinconex®), carbon fibers (Tenax), polycarbonate resin (Panlite®) and the fully recyclable carbon fiber reinforced thermoplastic material Sereebo® are developed and produced. At the Matsuyama Factory, Teijin has been operating the world's first pilot plant for continuous CFRTP mass production since 2012 with a cycle time of around one minute; Sereebo® is used for the first time in large-scale series production for structural parts in the GMC Sierra. In addition, the group manufactures flame-retardant SMC battery housings for electric vehicles, high-precision membranes (miraim®) and separators for lithium-ion batteries (Lielsort®). Revenue in the fiscal year ending March 2026 was around 873.2 billion yen, more than half of which outside Japan. Headquarters are located in Tokyo and Osaka.
- Site
- 100-8585 Tokyo
- Processes
- Manufacture of viscose fiber (rayon filament), Manufacture of acetate filament, Manufacture of polyester fiber (Tetoron), Manufacture of polycarbonate resin (Panlite), Manufacture of meta-aramid fiber (Teijinconex), Manufacture of para-aramid fiber (Technora, Twaron), Manufacture of carbon fibers (Tenax), CFRTP injection/compression molding with one-minute cycle time (Sereebo)
- Materials
- Rayon, Acetate, Polyester (Tetoron, ECOPET), Polycarbonate (Panlite, Multilon), Nylon 6, Meta-aramid (Teijinconex, Teijinconex neo), Para-aramid (Technora, Twaron), Carbon fiber (Tenax)
- Certificates
- ISO-certified medical device site
- Industries
- Automotive & Aerospace, Electrical & Electronics, Emergency Services & Security, Architecture & Construction, Industry, Energy
- 01
Polymer/material development (R&D)
- 02
Resin and fiber production
- 03
Compounding (Engineering Plastics)
- 04
CFRTP/SMC part molding
- 05
Film/membrane manufacturing
- 06
Textile finishing and converting
- 07
Testing and quality assurance
- 08
Delivery as material or Tier-1 supplier
Materials & Processes
Polycarbonate (Panlite®, Multilon)
Resins and compounds for automotive, electronics and optical applications.
Para-aramid (Technora®, Twaron®)
High-strength fiber for protective clothing, tire cord, ropes and composite reinforcement.
Meta-aramid (Teijinconex®)
Heat-resistant fiber (>400 °C) for firefighting clothing, filters and automotive hoses.
Carbon fiber (Tenax)
PAN-based carbon fiber as base material for prepregs and CFRP parts.
CFRTP (Sereebo®)
Fully recyclable carbon fiber reinforced thermoplastic, 40% lighter than steel, molding cycle time approx. 1 minute.
SMC (flame-retardant)
Sheet Molding Compound for EV battery housings, passed 10-minute fire test (UL94-5VA equivalent).
Polyester (Tetoron®)
Fibers, yarns and films including airbag fabrics and textile applications.
PEN film (Teonex®)
High-performance film for electrical and industrial applications.
UHMWPE (miraim®, Lielsort®)
Ultra-high molecular weight polyethylene for precision membranes and lithium-ion battery separators.
Cyclic carbodiimide
Resin modifier to suppress polymer hydrolysis, on the market since 2018.
Sites
Tokyo Head Office
JPHeadquarters; base for Aramid, Resin & Plastic Processing, Carbon Fibers, Composites, Healthcare and staff functions
Matsuyama Factory (North/South Works)
JPLargest factory in Japan; R&D and production of polycarbonate, para-aramid, membranes and CFRTP
- Lot size
- Series (mass production, CFRTP)
- Materials
- Polycarbonate (Panlite®), Para-aramid (Technora®), CFRTP (Sereebo®), miraim® membrane
- Pilot plant for continuous CFRTP mass production (2012, cycle time ~1 minute)
Iwakuni Factory
JPProduction of pharmaceuticals, home healthcare and meta-aramid; R&D laboratories since 1952
- Materials
- Meta-aramid (Teijinconex®)
Mihara Production Department
JPProduction site
- Materials
- Nylon 6
Teijin Automotive Technologies Czech s.r.o.
CZTier-1 parts manufacturing for automotive (formerly Benet Automotive)
- Materials
- CFRP, glass fiber reinforced plastic
Teijin Automotive Technologies Portugal S.A.
PTTier-1 parts manufacturing for automotive (formerly Inapal Plastics)
- Materials
- CFRP, glass fiber reinforced plastic
Teijin Polycarbonate China Ltd.
CNProduction of polycarbonate resin
- Materials
- Polycarbonate
Teijin Polycarbonate Singapore Pte Ltd.
SGProduction of polycarbonate resin
- Materials
- Polycarbonate
Parts & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of viscose fiber (rayon filament)Plastics | – | – | – | – | Rayon |
| Manufacture of acetate filamentPlastics | – | – | – | – | Acetate |
| Manufacture of polyester fiber (Tetoron)Plastics | – | – | – | – | Polyester (PET) |
| Manufacture of polycarbonate resin (Panlite)Plastics | – | – | – | – | Polycarbonate |
| Manufacture of meta-aramid fiber (Teijinconex)Plastics | – | – | – | – | Meta-aramid |
| Manufacture of para-aramid fiber (Technora, Twaron)Plastics | – | – | – | – | Para-aramid |
| Manufacture of carbon fibers (Tenax)Plastics | – | – | – | – | Carbon (polyacrylonitrile-based) |
| CFRTP injection/compression molding with one-minute cycle time (Sereebo)Additive | – | – | – | Series (mass production) | Carbon fiber reinforced thermoplastic (CFRTP) |
| Manufacture of flame-retardant SMC (Sheet Molding Compound) for EV battery housingsPlastics | – | – | – | – | SMC (glass/carbon fiber, resin), metal |
| Series production of CFRP parts for vehicles (design through mass production)Plastics | – | – | – | – | CFRP, Glass fiber reinforced plastic |
| Manufacture of PET films (Tetoron film)Plastics | – | – | – | – | PET |
| Manufacture of PEN film (Teonex)Plastics | – | – | – | – | PEN (polyethylene naphthalate) |
| Manufacture of PET resin for bottlesPlastics | – | – | – | – | PET |
| Manufacture of engineering plastics compoundsPlastics | – | – | – | – | Polycarbonate, Engineering Plastics |
| Multilayer membrane manufacturing (miraim, high precision, uniform pore diameters)Plastics | – | – | – | – | Ultra-high molecular weight polyethylene (UHMWPE) |
| Manufacture of lithium-ion battery separators (Lielsort)Plastics | – | – | – | – | UHMWPE |
| Weaving, dyeing and sale of polyester fabricsPlastics | – | – | – | – | Polyester |
| Manufacture of airbag fabricsPlastics | – | – | – | – | Polyester, Nylon |
| Injection molding and processing of UHMWPEPlastics | – | – | – | – | Ultra-high molecular weight polyethylene (UHMWPE) |
| Manufacture of plastic products as well as design and production of injection moldsPlastics | – | – | – | – | Plastic |
| Pharmaceutical productionAssembly | – | – | – | – | – |
| Contract manufacturing (CMO) for cell and gene therapy / regenerative medicineAssembly | – | – | – | – | – |
| Manufacture of prepregs (resin-impregnated carbon fiber fabric)Plastics | – | – | – | – | Carbon fiber, Epoxy resin |
| Testing: fire resistance testing according to UL94-5VA equivalent / GB standard (battery housings)Testing | – | – | – | – | SMC |
| Testing: combustion evaluation with thermal mannequin system PLIFF (international standards)Testing | – | – | – | – | – |
| Manufacture of synthetic leatherPlastics | – | – | – | – | Synthetic leather (polyurethane) |
| Manufacture of dipped cordsPlastics | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Pilot plant for continuous CFRTP mass production | Teijin | 1 | – | 2012 | Matsuyama Factory (North Works), Japan |
| Combustion evaluation system with thermal mannequin (PLIFF) | Teijin (in-house development) PLIFF | 1 | – | – | Teijin testing center, Japan |
Quality
Production of pharmaceuticals and medical devices at the Iwakuni site is carried out with modern quality assurance systems; the medical device site is ISO certified. For material testing, systems include the in-house developed combustion evaluation system PLIFF (thermal mannequin according to international standards) as well as fire tests according to a UL94-5VA equivalent standard.
| Evidence | Iwakuni Factory |
|---|---|
| ISO-certified medical device site |