HSN code HSN description GST 2705 Coal Gas, Water Gas, Producer Gas And Similar Gases, Other Than Petroleum Gases And Other Gaseous Hydrocarbons 5% 27050000 Coal Gas, Water Gas, Producer Gas And Similar Gases, Other Than Petroleum Gases And Other Gaseous Hydrocarbons 5% 2706 Tar Distilled From Coal, From Lignite Or From Peat And Other…