List of Declarations and Certifications

Environmental management system (As of June 2021)

Sites with certified systems among Showa Denko’s 16 plants and 13 affiliated companies (17 plants) in Japan and 21 affiliated companies outside the country:

Company name Operation site Category
Showa Denko K.K. Oita Complex ISO14001
Showa Denko K.K. Kawasaki Plant, Higashinagahara Plant
  • Kawasaki Plant
  • Higashinagahara Plant(excluding Power Generation Group)
  • Kawasaki Unit, Institute for Integrated Product Development
  • Carbon Group, Institute for Integrated Product Development
  • Flow battery Group, Institute for Integrated Product Development
  • Green Project, Institute for Integrated Product Development
  • Battery Matrials Unit, Okawa Development Center, Institute for Integrated Product Development
ISO14001
Showa Denko K.K. Tokuyama Plant ISO14001
Showa Denko K.K. Isesaki Plant ISO14001
Showa Denko K.K. Tatsuno Plant, HIPACK Co.,LTD. Tatsuno Plant ISO14001
Showa Denko K.K. Omachi Plant ISO14001
Showa Denko K.K. Shiojiri Plant, Showa Denko Ceramics Co.,Ltd Shiojiri Plant ISO14001
Showa Denko K.K. Yokohama Plant ISO14001
Showa Denko K.K. Oyama Plant ISO14001
Showa Denko K.K. Sakai Plant ISO14001
Showa Denko K.K. Kitakata Plant ISO14001
Showa Denko K.K. Chichibu Plant ISO14001
Showa Denko K.K. Chiba Plant, SHOWA DENKO Electronics K.K. ISO14001
Showa Denko K.K. Institute for Integrated Product Development (Toke) ISO14001
Tsurusaki Kyodo Doryoku Co., Ltd.   ISO14001
Sun Allomer Ltd. Oita Plant ISO14001
Sun Allomer Ltd. Kawasaki Plant ISO14001
Showa Denko Ceramics Co., Ltd. Toyama Plant ISO14001
Shinshu Showa Co., Ltd. Omachi Plant ISO14001
Union Showa K.K. Head Office, Yokkaichi Plant, Aizu Plant ISO14001
Shoko Electronics Co.,Ltd.   ISO14001
Showa Denko Gas Products Co., Ltd. Production Division(Kawasaki Plant/Yokkaichi Plant/Quality Assurance Department/Environmental Safety Department/Engineering Department/Okawa Gas Center)
Sales Division(Industrial Materials Department/Development Department)
ISO14001
Showa Denko HD Yamagata K.K.   ISO14001
Niigata Showa K.K.   ISO14001
Showa Denko Packaging Co.,Ltd. Whole company Eco-action 21
SHOTIC Europa Industria de Aluminio Lda.   ISO14001
Showa Aluminum Manufacturing Philippines Corporation   ISO14001
Showa denko Sichuan Carbon Inc.   ISO14001
Shanghai Showa Highpolymer Trading Co., Ltd.   ISO14001
Showa Denko HD Singapore Pte Ltd.   ISO14001
Showa Denko HD Trace corp.   ISO14001
Showa Denko HD (Malaysia) Sdn.Bhd.   ISO14001
Showa Specialty Gas(Taiwan) Co., Ltd. Showa Specialty Gas(Taiwan) Co., Ltd.,
Taiwan Showa Chemicals Manufacturing Co., Ltd.
ISO14001
Showa Denko (Dalian) Co., Ltd.   ISO14001
Zhejiang Quzhou Juhua Showa Electronic Chemical Materials Co., Ltd.   ISO14001
Showa Specialty Gas Singapore (Pte.) Ltd.   ISO14001
SHOWA DENKO New Material (Zhuhai) CO.,LTD.   ISO14001

Occupational health and safety management systems (As of June 2021)

Sites with certified systems among Showa Denko’s 16 plants and 13 affiliated companies (17 plants) in Japan and 21 affiliated companies outside the country:

Company name Operation site Certification
Showa Denko K.K. Oita Complex ISO45001
Showa Denko K.K. Kawasaki Plant OSHMS
Showa Denko K.K. Higashinagahara Plant ISO45001
Showa Denko K.K. Tokuyama Plant ISO45001
Showa Denko K.K. Isesaki Plant ISO45001
Showa Denko K.K. Tatsuno Plant, HIPACK CO.,LTD. Tatsuno Plant ISO45001
Showa Denko K.K. Omachi Plant OSHMS
Showa Denko K.K. Oyama Plant OSHMS
Showa Denko K.K. Kitakata Plant ISO45001
Showa Denko K.K. Chichibu Plant OSHMS
Showa Denko K.K. Chiba Plant, SHOWA DENKO Electronics K.K. ISO45001
Showa Denko K.K. Institute for Integrated Product Development (Toke) ISO45001
Tsurusaki Kyodo Doryoku Co,.Ltd.   ISO45001
Sun Allomer Ltd. Oita Plant ISO45001
Sun Allomer Ltd. Kawasaki Plant ISO45001
Showa Ceramics Co., Ltd. Toyama Plant,Shiojiri Plant, Yokohama Plant ISO45001
Showa Denko Gas Products Co., Ltd. Kawasaki Plant JISHA Good Safety Company
Showa Denko Gas Products Co., Ltd. Yokkaichi Plant JISHA Good Safety Company
Showa Denko HD Yamagata K.K.   ISO45001
Showa Denko HD Singapore Pte Ltd.   ISO45001
Showa Denko HD Trace corp.   ISO45001
Showa Denko HD Malaysia SDN.BHD   ISO45001

Rate of the Group’s domestic and overseas manufacturing bases with certified systems (as of June 2021):

  • Environmental management systems: 76% (41/54 plants)
  • Occupational health and safety management systems: 41% (22/54 plants)
    OHSAS 18001/ISO 45001: 37% (20/54 plants)
  • ※1 For Group companies, the following companies are excluded from the calculation target: Certified as a Showa Denko plant, has a plant on the premises for manufacturing services, and does not involve Showa Denko directly with the promotion of Responsible Care at the company.

Quality management system (As of June 2021)

Company name Operation site Category
Showa Denko K.K. Oita Complex ISO9001
Showa Denko K.K. Kawasaki Plant ISO9001
Showa Denko K.K. Higashinagahara Plant ISO9001
Showa Denko K.K. Isesaki Plant ISO9001
Showa Denko K.K. Tatsuno Plant ISO9001
Showa Denko K.K. Oita Production Department, Tatsuno Plant ISO9001
Showa Denko K.K. Tokuyama Plant ISO9001
Showa Denko K.K. Omachi Plant ISO9001
Showa Denko K.K. Shiojiri Plant ISO9001
Showa Denko K.K. Yokohama Plant ISO9001
Showa Denko K.K. Aluminum Rolled Products Division ISO9001
Showa Denko K.K. Oyama Plant ISO9001
Showa Denko Photonics Co., Ltd.   ISO9001
IATF16949
Sun Allomer Ltd. Head Office, Oita Plant, Kawasaki Plant, Research and Development Division, Osaka Branch ISO9001
Showa Denko Gas Products Co., Ltd. Production Division, Sales Division, STT ISO9001
Union Showa K.K. Head Office, Yokkaichi Factory, Aizu Factory ISO9001
HIPACK Co.,LTD.   ISO9001
Showa Denko Ceramics Co., Ltd. Shiojiri Plant, Toyama Plant,Yokohama Plant ISO9001
Showa Fine Ceramics Co., Ltd.   ISO9001
Showa Denko Sakai Aluminum K.K.   ISO9001
Showa Denko Sakai Aluminum K.K.   ISO9001
Showa Denko Kitakata Aluminum K.K.   ISO9001
IATF16949
Showa Denko Electronics   ISO9001
Showa Denko HD Yamagata K.K.   ISO9001
Showa Denko Packaging Co.,Ltd. Hikone Plant , Tokyo branch, Osaka branch, Isehara Plant ISO9001
IATF16949
Showa Denko Kenzai K.K. Head Office ISO9001
Niigata Showa K.K.   ISO9001
Shoko Electronics Co.,Ltd.   ISO9001
IATF16949
F2 Chemicals Limited   ISO9001
Shanghai Showa Highpolymer Co., Ltd.   ISO9001
Showa Specialty Gas (Taiwan) Co., Ltd.   ISO9001
Taiwan Showa Chemicals Manufacturing Co., Ltd.   ISO9001
Shanghai Showa Chemicals Co., Ltd.   ISO9001
Zhejang Quzhou Juhua Showa Electoronic Chemical Materials Co., Ltd.   ISO9001
Showa Specialty Gas Singapore (Pte.) Ltd.   ISO9001
Anseong Gas Center, Korea Showa Chemicals Co.   ISO9001
Shanghai Showa Electronics Materials Co., Ltd.   ISO9001
SHOWA DENKO New Material (Zhuhai) CO.,LTD.   ISO9001
Lianyungang Zaoling Abrasives Co., Ltd.   ISO9001
Showa Denko Carbon, Inc.   ISO9001
Showa Denko Sichuan Carbon Inc.   ISO9001
SHOTIC Europa Industria de Aluminio Lda.   ISO9001
IATF16949
Showa Aluminum Manufacturing Philippines Corporation   ISO9001
SHOTIC MALAYSIA SDN. BHD.   ISO9001
IATF16949
Showa Denko (Dalian) Co., Ltd.   ISO9001
Showa Denko HD Singapore Pte Ltd.   ISO9001
Showa Denko HD Trace corp.   ISO9001
Showa Denko Battery Materials (Shanghai) Co., Ltd.   ISO9001
IATF16949
Showa Denko Europe GmbH   ISO9001