Supplier development
Tandom’s paid supplier-development service helps industrial buyers identify and evaluate alternative manufacturers, compare quotes, qualify samples, and prepare a first order. Buyers retain supplier approval and all customs and compliance decisions.
Exporting to the United States
Tandom’s Americas Desk works with manufacturers outside the United States on the commercial side of entering it: buyer research, targeted outreach, qualifying the opportunities that come back, quote support, and follow-up.
Tandom · Duty calculator
Add country, entered value, and entry date to estimate the base rate, potentially applicable Chapter 99 duties, and customs fees. AD/CVD scope requires a separate review.
HTS 2811.22.50.00 is the U.S. Harmonized Tariff Schedule classification for Other inorganic acids and other inorganic oxygen compounds of nonmetals, silicon dioxide, other. It's a 10-digit statistical line in Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes, Section VI: Products of the Chemical or Allied Industries, used by U.S. Customs and Border Protection to determine the duty rate at entry. No Chapter 99 flags or potentially relevant AD/CVD order flags are linked to this code in Tandom's current catalog view.
New to HTS codes? Read our guide on how HTS classification works →
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of Scandium Oxide, Silicon Dioxide, and Silicon Monoxide from China
The tariff classification of silicon dioxide from Japan
The tariff classification of silicon dioxide from Japan
The tariff classification of synthetic amorphous silicon dioxide (CAS no. 7631-86-9) from Germany
The tariff classification of Precipitated Synthetic Amorphous Silicon Dioxide (CAS # 7631-86-9)
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 2811.22.50.00 is the U.S. Harmonized Tariff Schedule classification for Other inorganic acids and other inorganic oxygen compounds of nonmetals, silicon dioxide, other. It belongs to Chapter 28 of the HTSUS.
The general (Column 1) duty rate for HTS 2811.22.50.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
No Chapter 99 flags are linked to HTS 2811.22.50.00 in Tandom's current catalog view. Use the calculator's date, origin, and product inputs to check a specific entry scenario.
Tandom's current catalog view links no potentially relevant AD/CVD order flags to HTS 2811.22.50.00. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.
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