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 groups (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 group. 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.
Group-wide product liability / quality assurance system
As of April 1, 2021

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 CSR and Compliance Department, which is in charge of supervising Group-wide quality, audits these activities and checks that product liability / quality assurance mechanisms are operating appropriately.
In FY2021, we conducted regular audits of 10 business units and 6 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, 2022
Japan (24 companies, 53 factories) |
Teijin (Matsuyama Polymer Factory 1, Conex Factory, Technora Factory, Resin [Matsuyama Production Division, Mihara Production Division], Mishima Business Site, Ibigawa Business Site, Composites Development and Production Center [Matsuyama], Medical Device Business Development Project [Hino]) Teijin Frontier (functional fibers , cords, monofilament) Teijin Tedy Unisel Teijin Cordley (Mihara, Shimane) Teijin Frontier Knitting (Komatsu, Kaga, Kushi, Shibayama) Frontier Tex Kansai Shizai GH Craft (Funakubo, Itazuma) Hiroshima Plastic Teiyo Kinkai Chemicals Teijin Pharma (Iwakuni Medical Plant, Home Medical Care Technical Service Center, Medical Quality Assurance Department) Teijin Nakashima Medical Teijin Medical Technologies Infocom Infocom East Japan Infocom West Japan Grandit 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 |
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Overseas 28 companies, 49 factories) |
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Certification rate for the Teijin Group's major operation bases and factories*: 88%
- *With 50 or more employees