| Location | Primary Engineer | Backup Engineer (After 3 attempts to reach primary engineer) |
Korat (Nakhorn Ratchasima) | Santichai: +66 (6) 4 274 2321 | Siwapol: +66 (8) 6 463 7129 |
| Saraburi (all sites) | Siwapol: +66 (8) 6 463 7129 | Santichai: +66 (6) 4 274 2321 |
| Lopburi (all sites) | Siwapol: +66 (8) 6 463 7129 |
2. If the primary engineer is unavailable after 3 attempts, please contact backup engineer.
3. Submit job detail via email to Clarity IT service desk as well as engineer.
4. Engineer proceeds with on-site service arrangement as per instructions.
