Updated August 2025
As of August 2025
The Denka Group operates environmental and quality management systems to promote continuous improvement.
| Site name | Registration No. |
|---|---|
| Omi Plant | 19362328-2A |
| Omuta Plant | JP021970 |
| Chiba Plant | JP023535 |
| Shibukawa Plant | JP022052 |
| Ofuna Plant | JP022976 |
| Isesaki Plant | JP025228 |
| Gosen Site | JP024903 |
| Denka Innovation Center | JP026087 |
| Denka Singapore Pte. Ltd. | 10597162 |
| Denka Singapore Merbau Plant | 10442121 |
| DENKA ADVA-TECH TOAS FACTORY | SG004431 |
| DENKA CONSTRUCTION SOLUTIONS MALAYSIA | C734760 |
| DENKA ADVANCED MATERIALS VIETNAM | 4410416940004 |
| Denka Advanced Materials (Suzhou) | CN041503 |
| Denka Electronics Materials Dalian | CN050348 |
| Hinode Chemical Industry ※1 | KES2-0622 |
| Company-wide coverage rate (%) | 64% |
| Site name | Registration No. |
|---|---|
| Omi Plant | JP025718 |
| Omuta Plant | JP023219 |
| Chiba Plant | JP026048 |
| Shibukawa Plant | JP023240 |
| Ofuna Plant | JP024116 |
| Isesaki Plant | JP022573 |
| Denka Innovation Center | JP024569 |
| Denka Singapore Pte. Ltd. | 10216321 |
| Denka Singapore Merbau Plant | 14002 |
| DENKA ADVA-TECH TOAS FACTORY | 99-2-0984 |
| DENKA ADVA-TECH SOUTH PLANT | 2015-2-2293 |
| DENKA CONSTRUCTION SOLUTIONS MALAYSIA | C662335 |
| DENKA ADVANCED MATERIALS VIETNAM | 4410018940004 |
| Denka Advanced Materials (Suzhou) | CN041504 |
| Denka Electronics Materials Dalian | CN050349 |
| Denka Inorganic Materials (Tianjin) | N.CN23-22591A |
| Denka Performance Elastomer | 10001143 QM15 |
| Denka Polymer | JUSE-RA-1970 |
| Denka Elastlution | JP021891 |
| Kyushu Plastic Industry | JP022847 |
| DENKA ASTEC KASAI PLANT | JA0107-24Q-1 |
| Company-wide coverage rate (%) | 84% |
| Certification system | Site name | Registration No. |
|---|---|---|
| ISO13485 | Gosen Site | Q5 055720 0003 |
| Certification system | Site name | Registration No. |
|---|---|---|
| IATF16949 | Omuta Plant | 0451115 |
| Chiba Plant | 0555513 |
| Certification system | Site name | Certification number |
|---|---|---|
| ISO45001 | Chiba Plant | JP024552 |
| OSHMS | Omi Plant | 10-15-6 |
| ISO45001 | Denka Singapore Pte. Ltd. | 10597161 |
| ISO45001 | DENKA ADVA-TECH TOAS FACTORY | SGOO4609 |
| ISO45001 | DENKA ADVANCED MATERIALS VIETNAM | C703177 |
| Certification system | Site name | Certification number |
|---|---|---|
| ISO14001&ISO45001 | Denka Singapore Pte. Ltd. | 10667089 |
| Certification system | Site name | Certification number |
|---|---|---|
| ISO28000 | Denka Singapore Pte. Ltd. | 53602 |
| Certification system | Site name | Certification number |
|---|---|---|
| ISO50001 | Denka Singapore Pte. Ltd. | 10474031 |
| Certification system | Site name | Certification number |
|---|---|---|
| ISCC-PLUS | Denka Singapore Pte. Ltd. | ISCC-PLUS-Cer-DE100-13931123 |
| Denka Polymer Goi Factory | ISCC-PLUS-Cert-DE100-19445124 | |
| Denka Polymer Sakura Plant | ISCC-PLUS-Cert-DE100-20226124 | |
| Denka Polymer Katori Plant | ISCC-PLUS-Cert-DE100-20231124 |
As of August 2025, the Denka Group is operating an environmental and quality management system to promote continuous improvement. ISO1400...
The following two members of the Infrastructure Solutions Department have received the "Prestressed Concrete Institute Award (Paper Award)": - KENTARO SUHIRA, Group Leader, Infrastructure Solutions Department - HIROTO KODATE, Assistant Manager, Omi Plant
The following is an announcement regarding the receipt of awards by the Department Manager of the Infrastructure Solutions Research Department, Minoru Morioka. Morioka has received two awards: the "JSCE Yoshida Award (Paper)" and the "Japan Concrete Institute Award (Merit)". ...
At the 2019 Electrical Engineering Society Conference held in September 2019 (Iwate University), Shuhei Aoyama of the Denka Innovation Center Advanced Technology Research Institute received the...
Senior Technical Advisor (STA) Masahiro Ibukiyama of the New Business Development Department received the Minister of Economy, Trade and Industry Award at the 2023 Industrial Standardization Project Awards hosted by the Ministry of Economy, Trade and Industry (METI). The award ceremony was held on October 8, 2023.
The uruoi global website operated by Denka Corporation (New York, USA) has been recognized with the "Honorable Mention" award at the "awwwards", a global web design award.
Denka Company Limited consolidated subsidiary Denka Seiken Co., Ltd. Reagent Department Manager Yasuki Ito says, "The automatic analyzer for measurement of small, dense LDL-C (Note 1) ...
At the 39th Research Meeting of the Society for Micro and Nano Systems (CHEMINAS39) held at Kanazawa University on May 27-28, Denka INOV...
The academic journal "Analyst" published by the Royal Society of Chemistry (RSC) in March 2019...
Director, NPO Circulating Society Research Institute TAMIO YAMAGUCHI The resolution of corporate value creation stories has improved. In 2011, we began receiving third-party opinions on our reports.
Director of the NPO Circulating Society Research InstituteTAMIO YAMAGUCHIReport showing the full picture of Company-wide reform campaign aimed at returning to growth trajectoryThis report...
Director of the NPO Circulating Society Research InstituteTAMIO YAMAGUCHIThis year's report in response to expectationsFor about 20 years, I have been providing third-party opinions on several companies' reports...
Third-party Opinion on Our Report TAMIO YAMAGUCHI Director, NPO Circulating Society Research Association Third-party opinions on our reports have been provided since the 2011 "CSR Report."
Director, NPO Circulating Society Research Group Tamio Yamaguchi Since 2020, the COVID-19 pandemic and the rapid progress of decarbonization have changed the business environment significantly. In particular, the...
Director, NPO Circulating Society Research CouncilTAMIO YAMAGUCHIThis third-party opinion is based on my comments submitted during the report preparation process and...
Director, NPO Circulating Society Research InstituteTAMIO YAMAGUCHIThis third-party opinion is based on the "DENKA REPORT 2019" and the CSR information site on our corporate website.