Alchem Polymers
No. 109/23, Hazra Road, Opposite Sujata Sadan
Kolkata- 700026, West Bengal (India)
Eastern Engineers
No. 16, Nabin Chandra Das Road
Kolkata- 700090, West Bengal (India)
Binani Industries
601, Axis Mall, 6th Floor, Block C, Action Area -1,,New Town, Rajarhat
Kolkata- 700156, West Bengal (India)
P. K. Industries
No. 46 - B, Rafi Ahmed, Kidwai Road, 6th Floor
Kolkata- 700016, West Bengal (India)