HSN code HSN description GST 2713 Petroleum Coke, Petroleum Bitumen And Other Residues Of Petroleum Oils Or Of Oils Obtained From Bituminous Minerals 18% 271311 Not Calcined 18% 27131100 Petroleum Coke, Petroleum Bitumen And Other Residues Of Petroleum Oils Or Of Oils Obtained From Bituminous Minerals – Petroleum Coke: Not Calcined 18% 27131110 Raw Petroleum…