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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2026 HTS Revision 4 (02/25/2026))
| HTS Code | 99021313 | 90314100 |
| Article Description | Acrylic staple fibers (polyacrylonitrile staple) containing 85 percent or more by weight of acrylonitrile units and 2 percent or more but not over 3 percent of water, colored, crimped, with a decitex between 1.98 and 2.42 and fiber length between 40 and 47.5 mm, certified by the importer as having a solar reflectance index less than 10 (provided for in subheading 5503.30.00) | For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits) |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [] | [] |
| Rates of Duty (1-General) | Free | Free |
| Rates of Duty (1-Special) | No change | -- |
| Rates of Duty (2-Cuba and North Korea) | No change | 50% |
| Footnotes | [stat, units], marker=1, See chapter 99 statistical note 1., type=footnote | [general], See |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | The duty provided in the applicable subheading plus 25% |