Tandom · Duty calculator
Add country and invoice value for the full duty stack — base + 301 + 232 + AD/CVD + fees.
HTS 2841.80.00.20 is the U.S. Harmonized Tariff Schedule classification for Of calcium. 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. 1 Chapter 99 tariff modification currently stacks on top of the base rate.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.91.01 | section_301 | The duty provided in the applicable subheading + 25% |
HTS 2841.80.00.20 is the U.S. Harmonized Tariff Schedule classification for Of calcium. It belongs to Chapter 28 of the HTSUS.
The general (Column 1) duty rate for HTS 2841.80.00.20 is 5.5%. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
Yes. Imports of HTS 2841.80.00.20 from countries party to a trade program (such as USMCA, KORUS, GSP, or the African Growth and Opportunity Act) may qualify for the special rate: Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P, PA,PE,S,SG). Eligibility depends on rules of origin and certification.
The Column 2 rate for HTS 2841.80.00.20 is 49.5%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 2841.80.00.20 is covered by section_301 provision 9903.91.01 (The duty provided in the applicable subheading + 25%). Open the code page for the full overlay stack with effective dates and country scopes.
No active AD/CVD orders currently flag HTS 2841.80.00.20 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
Free Trade Agreement and special-program eligibility
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