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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2024 HTS Revision 1)
| HTS Code | 99020129 | 99020128 |
| Article Description | Silicon dioxide amorphous, certified by the importer as comprising entirely spherical micro-spheres with mean particle size of 28 to 45 micrometers (µm) and surface area 600 to 800 m²/g (CAS No. 7631-86-9) (provided for in subheading 2811.22.10) | Dioxosilane (Silicon dioxide amorphous) (CAS No. 7631-86-9) presented in the form of entirely spherical micro-spheres, certified by the importer as having a mean particle size of between 0.046 and 0.054 mm, uniform particle size with a uniformity coefficient of 1.65 or less and specific electrical resistance of 50,000 Ohm cm or more (provided for in subheading 2811.22.10) |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [] | [] |
| Rates of Duty (1-General) | Free | Free |
| Rates of Duty (1-Special) | No change | No change |
| Rates of Duty (2-Cuba and North Korea) | No change | No change |
| Footnotes | [stat, units], marker=1, See chapter 99 statistical note 1., type=endnote | [stat, units], marker=1, See chapter 99 statistical note 1., type=endnote |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | -- |