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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2026 HTS Revision 10 (06/08/2026))
| HTS Code | 7304316010 | 7020003000 |
| Article Description | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [kg] | [No.] |
| Rates of Duty (1-General) | Free | Free |
| Rates of Duty (1-Special) | -- | -- |
| Rates of Duty (2-Cuba and North Korea) | 25% | 55% |
| Footnotes | [{columns=[other], value=See 9903.90.09. , type=endnote}, {columns=[general], value=See 9903.91.01. , type=endnote}] | [{columns=[general], value=See 9903.88.03. , type=endnote}] |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | -- |