Greystone Sponge Private Limited is a MEGHALAYA based private ltd. Company Registered at dated 19-DEC-2003 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Greystone Sponge Private Limited is U27102ML2003PTC007284 and registration number is 007284 and JAGABRATA SARKAR is director in GREYSTONE SPONGE PRIVATE LIMITED

Greystone Smelters Limited is a MEGHALAYA based public ltd. Company Registered at dated 14 FEB 2001 on Ministry of Corporate Affairs(MCA), The Corporate Identification Number (CIN) of Greystone Smelters Limited is U27101ML2001PLC006426 and registration number is 006426 and JAGABRATA SARKAR is director in GREYSTONE SMELTERS LIMITED