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List of HSN Code with Tax Rates Apr 06 2021Natural barium sulphate barytes natural barium carbonate witherite whether or not calcined other than barium oxide of heading 2816 5 2512 Siliceous fossil meals for example kieselguhr tripolite and diatomite and similar siliceous earths whether or not calcined of an apparent specific gravity of 1 or less 5 2513