| 3504.00 | | Peptones and their derivatives; other protein substances and their derivatives, not elsewhere specified or included; hide powder, whether or not chromed. |
| 3504.00 | 021 | - Vegetable proteins and their derivatives |
| 39.13 | | Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms. |
| 3917.10 | | Artificial guts (sausage casings) of hardened protein or of cellulosic materials |
| 3917.10 | 010 | 1 Of hardened protein |
Harmonized Tariff Schedule of Japans inquiry: /etc/passwd
