Product Liability and Quality Assurance

The Teijin Group rigorously complies with laws and regulations and customer contract stipulations pertaining to quality, while taking steps to establish a quality assurance structure that responds to its global development.

Product Liability / Quality Assurance Management System

The Teijin Group Product Liability / Quality Assurance Regulations apply to all Teijin Group products and services and are the basis for our product liability / quality assurance activities. Based on these regulations, the Group CSR Committee and the Group Product Liability / Quality Assurance Subcommittee decide the basic policies and associated targets for all product liability / quality assurance issues of the Teijin Group, and reflect them in product liability / quality assurance activities conducted by business unit.

We have also created an original unit-based management system for product liability / quality assurance that is applied to the products of each business unit. This management system aims to enhance customer satisfaction, prevent product defects, and ensure appropriate responses in the event that defects occur. The system not only covers the scope of the ISO 9001 standards for quality management systems but also incorporates perspectives of product liability / quality assurance, such as response to customers and product safety.

Groupwide product liability / quality assurance system

As of April 1, 2023

Implementation of Product Liability / Quality Assurance Audits

Product liability / quality assurance activities are conducted as the responsibility of each product liability / quality assurance unit. The Environment, Safety and Security Management Department, which is in charge of supervising Groupwide quality, audits these activities and checks that product liability / quality assurance mechanisms are operating appropriately.

In FY2022, we conducted regular audits of 11 business units and six directly managed companies with the objective of verifying operational status. Based on feedback from the audit results, we are continually enhancing the product liability / quality assurance system and process.

Current Status of Certifications

As of January 1, 2023

(24 companies,
54 factories)
Teijin (Matsuyama Polymer Factory 1, Conex Factory, Technora Factory, Resin [Matsuyama Production Division, Mihara Production Division], Mishima Business Site, Ibigawa Business Site, Composite Manufacture Department [Matsuyama], Teijin Composites Innovation Center [Matsuyama], Medical Device Business Development Project [Hino])
Teijin Frontier (functional fibers , cords, monofilament)
Teijin Tedy
Teijin Cordley (Mihara, Shimane)
Teijin Frontier Knitting (Komatsu, Kaga, Kushi, Shibayama)
Frontier Tex
Kansai Shizai
GH Craft (Funakubo, Itazuma)
Hiroshima Plastic
Kinkai Chemicals
Teijin Pharma (Iwakuni Medical Factory, Home Medical Care Technical Service Center, Medical Quality Assurance Department, Iwakuni Pharmaceutical Factory)
Teijin Nakashima Medical
Teijin Medical Technologies
Infocom East Japan
Infocom West Japan
Teijin Engineering (Osaka, Iwakuni, Matsuyama, Tokyo)
Teijin Eco-Science (Ibaragi Technical Center, Hamura Technical Center, Matsuyama Technical Center, Matsuyama Factory)
Teijin Logistics (Osaka, Ehime, Tokuyama, Tokyo, Hokuriku, Tokai)
Toho Chemical Engineering & Construction
Toho Machinery
(28 companies,
49 factories)
  • China: Nantong Teijin, N.I. Teijin Airbag Fabric (Nantong), Nantong Teijin Automotive Fabrics Finishing (Nantong), Teijin Chemicals Plastic Compounds (Shanghai), Teijin Polycarbonate China, Teijin Automotive Technologies China (Tangshan、Changzhou), Teijin Medical Device (Shanghai), J.H. Ziegler
  • Korea: Teijin Lielsort Korea
  • Thailand: Teijin Polyester (Thailand), Teijin (Thailand), Teijin Cord (Thailand), Thai Namsiri Intertex (two factories), Teijin FRA Tire Cord (Thailand), Teijin Corporation (Thailand) (two factories)
  • USA: Teijin Carbon America, Renegade Materials Corporation,
    Teijin Automotive Technologies US (head office, 10 factories)
  • Mexico: Teijin Automotive Technologies Mexico (two factories)
  • France: Teijin Automotive Technologies France
  • Germany: Teijin Carbon Europe GmbH (two factories), J. H. Ziegler (two factories),
    Teijin Automotive Technologies Germany
  • Hungary: J.H.Ziegler
  • Netherlands: Teijin Aramid (three factories)
  • Spain: Esteve Teijin Healthcare
  • Portugal: Teijin Automotive Technologies Portugal (two factories)
  • Czech Republic: Teijin Automotive Technologies Czech (three factories)

Certification rate for the Teijin Group's major operation bases and factories*: 90%

  • *With 50 or more employees