Dhulagarh Works, Dhulagarh
| Address | : | Vill & P.O. Chaturbhujkathi, Kan, Dhulagarh - 712310 |
| State | : | West Bengal |
| District | : | Howrah |
| Website | ||
| https://www.kkalpanagroup.com/ | ||
Falta Works, Falta
| Address | : | Falta Special Economic Zone, Falta - 743504 |
| State | : | West Bengal |
| District | : | South 24 Parganas |
| Website | ||
| https://www.kkalpanagroup.com/ | ||
Sintex Plastics Technology Limited, Howrah
| Address | : | Plot No.40 & 41, Uluberia Growth Centre, Near Birsipur Railway Station, Howrah - 711316 |
| State | : | West Bengal |
| District | : | Howrah |
| Website | ||
| https://www.sintexonline.com/ | ||