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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2026 HTS Revision 4 (02/25/2026))
| HTS Code | 25280000 | 24031990 |
| Article Description | Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight | Other |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [] | [] |
| Rates of Duty (1-General) | Free | 350% |
| Rates of Duty (1-Special) | -- | Free (AU,BH,CL,IL,KR,MA,OM,P,PA,PE,S,SG) See 9918.24.10-9918.24.11 (CO) |
| Rates of Duty (2-Cuba and North Korea) | Free | 350% |
| Footnotes | [general], See 9903.88.03., type=endnote | [general], See 9903.88.03., type=endnote |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | The duty provided in the applicable subheading + 25% | The duty provided in the applicable subheading + 25% |