| 34260 | Isotopes, stable, pure (excl. chemical isotopes occurring in nature as pure isotopes), and any of their compounds | |
| 91133 | Issuing of building occupation certificates | |
| 71599 | Issuing of currency by non-central banks | |
| 91131 | Issuing of fishing licences | |
| 91131 | Issuing of hunting licences | |
| 91131 | Issuing of tree-felling licences | |
| 01929 | Istle (or ixtle) textile fibres, raw | |
| 26190 | Istle (or ixtle) textile fibres, tow or waste of, not spun | |
| 03250 | Istle, not prepared for textile use | |
| 83159 | IT hosting or infrastructure provisioning services such as hosting client's applications, processing client's data and computer time-share | |
| 34400 | Ivory black | |
| 38999 | Ivory, animal, worked beyond cleaning, simple sawing, cutting (crosswise or lengthwise) and rough planing | |
| 39110 | Ivory, cut crosswise or lengthwise (excl. cut to shape) | |
| 39110 | Ivory, simply sawn to remove useless parts | |
| 39110 | Ivory, unworked or not further worked than simply prepared (excl. cut to shape) | |
| 03250 | Ivory, vegetable, whole or sliced but not otherwise worked | |
| 38999 | Ivory, vegetable, worked or moulded (excl. buttons and blanks therefor) | |