| Authorization | Name & Address of the Industry | Office | Date of issue of | Validity |
| Order No. | Authorization | |||
| 3906 | Dalmia Cement (B) Ltd, Thamaraikulam, Govindapuram, Ariyalur Taluk, Ariyalur District | Trichy | 09-11-2010 | 08-11-2015 |
| 474 | TNSTC Ltd, Rockfort Branch, Salai Road, Trichy | Trichy | 09-11-2010 | 08-11-2015 |
| 471 | TNSTC Ltd, Manaparai Branch, Manaparai, Trichy | Trichy | 09-11-2010 | 08-11-2015 |
| 3905 | TNSTC Ltd, Thuraiyur Branch, Thuraiyur, Trichy | Trichy | 08-11-2010 | 07-11-2015 |