Sur Industries Private Limited
No. 163, A. J. C. Bose Road
Kolkata- 700014, West Bengal (India)
Sinomet Resources Co Limited
Ecospace Business Park, Unit 401A, Block 3 New Town Rajrahat, 24 Paragna
Kolkata- 700156, West Bengal (India)
Shree Vinayaka Engineering
No. 104A/22/3, Karunamoyee Ghat Road
Kolkata- 700001, West Bengal (India)