CSR Sustainability
ISO Certifications
The following is the ISO certification status of the Group’s primary manufacturing sites. We will ensure that our business activities are eco-friendly while contributing to society by providing goods and services that are trusted by customers and by constantly improving our quality and environmental management systems.
| Company Name | Segment | Affiliation with the Company | Acquired certifications |
| Sanbongi Factory, RS Technologies Co., Ltd. | Wafer reclamation business | RS Technologies | ISO9001 certified ISO14001 certified |
| RSTEC Semiconductor Taiwan Co., Ltd. (RS Taiwan) | Wafer reclamation business | Consolidated subsidiaries | ISO9001 certified ISO14001 certified ISO45001 certified |
| Shandong GRINM RS Semiconductor Materials Co., Ltd. (Shandong GRITEK) | Prime wafers Manufacturing and sales |
Consolidated subsidiaries | ISO9001 certified ISO14001 certified |
| DG Technologies Co., Ltd. | Businesses related to semiconductor equipment, components, etc. | Consolidated subsidiaries | ISO9001 certified |
RS Technologies Co., Ltd. Sanbongi Factory
ISO9001
- Certification date：2011/11/4
- Accreditation body：UKAS
- Registration number：JP11/062323
ISO14001
- Certification date：2014/10/7
- Accreditation body：UKAS
- Registration number：JP14/071387
RSTEC Semiconductor Taiwan Co., Ltd. (RS Taiwan)
ISO9001
- Certification date：2017/10/5
- Accreditation body：UKAS
- Registration number：TW17/01054
ISO14001
- Certification date：2017/9/22
- Accreditation body：UKAS
- Registration number：TW17/01055
ISO45001
- Certification date：2017/9/22
- Accreditation body：UKAS
- Registration number：TW17/01056
Shandong GRINM RS Semiconductor Materials Co., Ltd.
ISO9001
- Certification date：2021/1/27
- Accreditation body：UKAS
- Registration number：CN034631
ISO14001
- Certification date：2021/4/30
- Accreditation body：UKAS
- Registration number：CNBJ322336-U-001
DG Technologies Co., Ltd.
ISO9001
- Certification date：2009/3/30
- Accreditation body：UKAS
- Registration number：05774