List of IATF16949 Certification (as of December 2023)
| Site | Date of initial certification | Certification body | Scope of Registration |
|---|---|---|---|
| Expiration date | Registration number | ||
| Headquarter & Niigata plant | 2011/8/26 | JQA | Design and manufacturing of single crystal silicon and silicon wafer. |
| 2024/9/2 | JQA-AU0234 | ||
| Tokuyama plant | 2013/4/9 | JQA | Manufacturing of silicon Epitaxial wafer. Permitted Exclusions : Product Design |
| 2024/5/20 | JQA-AU0253 | ||
| Sekikawa plant | 2011/5/10 | JQA | Design and manufacturing of silicon wafer. |
| 2024/5/13 | JQA-AU0254 | ||
| Oguni crystal center | - | - | - |
| - | - | ||
| MEMC Japan Ltd. | 2004/1/7 | BSI | Manufacture of silicon wafer. |
| 2026/12/12 | 578430 |
List of Acquired ISO 9001 Certification (as of November 30, 2021)
| Site | Date of initial certification | Certification body | Scope of Registration |
|---|---|---|---|
| Expiration date | Registration number | ||
| Headquarter & Niigata plant | 1996/4/5 | JQA | The design / development and manufacture of single crystal silicon and silicon wafer. |
| 2024/9/5 | JQA-1234 | ||
| Tokuyama plant | 1996/3/8 | JQA | The manufacture of silicon Epitaxial wafer. |
| 2024/5/23 | JQA-1189 | ||
| Sekikawa plant | 1996/6/7 | JQA | The design and manufacture of silicon wafer. |
| 2024/5/16 | JQA-1293 | ||
| Oguni crystal center | 2012/11/16 | JQA | The manufacture of silicon single crystal. |
| 2024/8/31 | JQA-QMA14687 | ||
| MEMC Japan Ltd. | - | - | - |
| - | - |
List of Acquired ISO 14001 Certification (as of March 2022)
| Site | Date of initial certification | Certification body | Scope of Registration |
|---|---|---|---|
| Expiration date | Registration number | ||
| Headquarter & Niigata plant | 1997/12/5 | JQA | The design, development and manufacture of single crystal silicon and silicon wafer. |
| 2024/12/4 | JQA-E-90080 | ||
| Tokuyama plant | 1998/3/20 | JQA | Production of silicon epitaxial wafer. |
| 2025/3/19 | JQA-E-90139 | ||
| Sekikawa plant | 1999/4/23 | JQA | The manufacture of silicon wafer. |
| 2024/12/4 | JQA-E-90080 | ||
| Oguni crystal center | 1998/2/6 | Intertek Japan | Manufacture of single crystal silicon. |
| 2025/2/22 | 10569 | ||
| MEMC Japan Ltd. | 2000/12/15 | JQA | The manufacture of silicon wafer. |
| 2024/12/4 | JQA-E-90080 |
List of Acquired ISO 45001 Certification (as of December 31, 2022)
| Site | Date of initial certification | Certification body | Scope of Registration |
|---|---|---|---|
| Expiration date | Registration number | ||
| Headquarter & Niigata plant | 2019/12/6 | JQA | The design, development and manufacture of single crystal silicon and silicon wafer. |
| 2025/12/5 | JQA-OH0305 | ||
| Tokuyama plant | 2021/11/19 | JQA | Manufacturing of silicon epitaxial wafer. |
| 2025/12/5 | JQA-OH0305 | ||
| Sekikawa plant | 2019/12/6 | JQA | The manufacture of silicon wafer. |
| 2025/12/5 | JQA-OH0305 | ||
| Oguni crystal center | 2021/11/19 | JQA | The manufacture of silicon single crystal. |
| 2025/12/5 | JQA-OH0305 | ||
| MEMC Japan Ltd. | 2008/9/9 | JQA | The manufacture of silicon wafer. |
| 2025/12/5 | JQA-OH0305 |