| Organizations Name | PT. DUTHA TERANG TEHNIK |
| Address | Jl. Damai , Desa/Kelurahan Oebobo, Kec. Oebobo, Kota, Kupang, Provinsi Nusa Tenggara Timur, Kode Pos: 85111 . |
| Cerrtification Bodies | Sapta Mutu Utama |
| EA Code | 35 |
| Scope of Work | Provision of Retail Trade of Household Electrical Appliances and Lighting Equipment and Equipment, Construction of Irrigation and Drainage Networks, Construction of Other Buildings, Civil Clean Water Treatment, Construction of Civil Buildings Infrastructure and Facilities of Solid, Liquid and Gas Waste Treatment Systems, Plumbing Installations Electrical Installations. |
| Standard | ISO 14001 : 2015 |
| Status | Active |
| No. Certificate | SMUEMS/DTT/1280 |
| Issue Date | 29 April 2026 |
| 1st Surveillance | 29 April 2027 |
| 2nd Surveillance | 29 April 2028 |
| Recertification Before | 29 April 2029 |
| Standard | ISO 45001 : 2018 |
| Status | Active |
| No. Certificate | SMUOHSMS/DTT/1280 |
| Issue Date | 29 April 2026 |
| 1st Surveillance | 29 April 2027 |
| 2nd Surveillance | 29 April 2028 |
| Recertification Before | 29 April 2029 |
