| Certification | Certification Date | Validity Period | Accreditation Authority |
|---|---|---|---|
| ISO 9001 (QMS, Quality Management System) |
1996.05.14 |
2026.04.29 ~ 2029.04.28 (Integrated Certification from 2026) |
Lloyd's Register Quality Assurance |
| ISO 14001 (EMS, Environmental Management System) |
2008.10.19 | ||
| ISO 45001 (OHSMS, Occupational Health & Safety Management System) |
2026.04.29 | ||
| ICMC (International Cyanide Management Code) |
2008.03.10 | 2026.04.08~2029.04.07 | International Cyanide Management Institute |
| ISCC PLUS (International Sustainability & Carbon Certification PLUS) |
2021.10.21 | 2025.10.21~2026.10.20 | Control Union Certifications Germany GmBH |