The base duty stack is open to everyone. A free account opens full output, AD/CVD detail, Chapter 98 processing, and available exports.
Policy stack evaluated for 2026-08-15. HTS base and fee constants use the current loaded schedule; non-current AD/CVD scenarios require Commerce ACCESS verification. Sources: USITC HTS, Federal Register, Commerce AD/CVD. Built from public source records. Not legal advice.
Oxygen-function amino-compounds:
Origin: 🇨🇳 China (CN) · Unit: · Base: MFN Base Rate (General)
Total Applicable Duty
12.5%ad valorem
1 instrument applicable
MFN Base Rate (General): + Additional: 12.5%
1 rate changed recently1 never synced
Under-calculated
Calculation requires verification
One or more required product facts or contemporaneous policy records are unresolved. Review the critical warnings below before relying on this scenario.
Patented Annex I products require a company tranche and treatment. Company adjustments require written Commerce approval; selecting an option is an importer attestation, not an approval lookup.
Estimate the Merchandise Processing Fee and Harbor Maintenance Fee separately from the ad-valorem duty stack. Fees are charged on entered value, not as a percentage on top of the tariff.
Simulation, not a filing basis. This tool models the ad-valorem duty stack for directional analysis. It does NOT replace the official HTSUS, a licensed customs broker, or Commerce / USTR / CBP rulings. The total does not include antidumping or countervailing duties (AD/CVD), non-ad-valorem specific duty components, preferential FTA rates that require origin qualification, Chapter 98 provisions, Chapter 99 exclusions, or §232 absolute-quota fill status. Rates change frequently. Before entering any commercial shipment, verify the applicable rate in the USITC HTSUS and confirm with CBP or a licensed customs broker.