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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2026 HTS Revision 19 (09/15/2026))
| HTS Code | 281122 | 28092000 |
| Article Description | Silicon dioxide: | Phosphoric acid and polyphosphoric acids Phosphoric acid: Fertilizer grade: |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [] | [] |
| Rates of Duty (1-General) | -- | Free |
| Rates of Duty (1-Special) | -- | -- |
| Rates of Duty (2-Cuba and North Korea) | -- | Free |
| Footnotes | [] | [] |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | -- |