| 2710.91    | 000        | Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or polybrominated biphenyls (PBBs) | 
| 27.11      |            | Petroleum gases and other gaseous hydrocarbons | 
| 2711.11    | 000        | Natural gas | 
| 2711.13    | 010        | - Intended for use in manufacturing ammonia, ethylenic hydrocarbons or maleic anhydride | 
| 2711.19    | 010        | 1 Petroleum gases | 
| 2711.19    |            | In gaseous state | 
| 2711.21    | 000        | Natural gas | 
| 27.12      |            | Petroleum jelly; paraffin wax, micro-crystalline petroleum wax, slack wax, ozokerite, lignite wax, peat wax, other mineral waxes, and similar products obtained by synthesis or by other processes, whether or not coloured | 
| 2712.20    | 000        | Paraffin wax containing by weight less than 0.75% of oil | 
| 2713.90    | 100        | 1 Extracts of a pour point not exceeding 35?, derived from the treatment of lubricating oils with solvents | 
| 28.04      |            | Hydrogen, rare gases and other non-metals | 
| 2804.10    | 000        | Hydrogen | 
| 2804.10    |            | Rare gases | 
| 2804.21    | 000        | Argon | 
| 2804.30    | 000        | Nitrogen | 
| 2804.40    | 000        | Oxygen | 
| 2804.61    |            | Containing by weight not less than 99.99 % of silicon | 
| 2804.61    | 100        | 1 Of single crystal | 
| 2805.40    |            | II.- INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS | 
| 28.06      |            | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid | 
| 2806.10    | 000        | Hydrogen chloride (hydrochloric acid) | 
| 28.11      |            | Other inorganic acids and other inorganic oxygen compounds of non-metals | 
| 28.11      |            | Other inorganic acids |