HTS 05100020 — Ambergris, castoreum, civet and musk
Imports classified under 05100020 — part of heading 0510, Ambergris, castoreum, civet and musk, in Chapter 05 (Animal originated products; not elsewhere specified or included). For this line, a general tariff of 5.1% applies. Preferential treatment is available under Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG).
Tariff rates for 05100020
| Rate type | Rate | Notes |
|---|---|---|
| General (Column 1) | 5.1% | Applies to countries without a preferential agreement, i.e. about 5.1% ad valorem on the customs value. |
| Special | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Reduced or free rates for designated program countries (see code legend on the USITC site). |
| Column 2 | 20% | Statutory rate applied to the few economies without normal-trade-relations status. |
Reporting units
Entry summaries for 05100020 must be declared in: kg (kg = kilograms). A single quantitative measure accompanies the ad valorem component on the entry summary.
Frequently asked questions
Is there a Section 301 tariff on 05100020?
Section 301 actions apply by exact HTS line. This page shows the permanent schedule rate (5.1%) for 05100020; check the current 301 annexes or our dedicated Section 301 tariffs guide to see whether trade-remedy duties stack on top for your origin country.
What unit is used to declare 05100020?
US Customs declares 05100020 using the reporting unit(s) “kg” (kg = kilograms). When several units apply, each is reported on entry documents and may drive different ad-valorem-equivalent treatment.
Does 05100020 qualify for a free or reduced rate?
Many preferential programs reduce the general rate. The Special column above lists the program codes that qualify for duty-free or reduced treatment under recent trade agreements.
Related pages & tools
Data as of October 9, 2026 · Source: USITC Harmonized Tariff Schedule (line 0510.00.20.00). Rates are informational and not a binding customs ruling.