HTS heading 2842 · Chapter 28
HTS 2842: Other salts of inorganic acids or peroxoacids, other…
HTS heading 2842 covers other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. It has 3 tariff lines with a duty rate; the general (MFN) rates are 3.7% (1 line), 3.1% (1 line), 3.3% (1 line).
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| 2842.10.00.00 | Double or complex silicates, including aluminosilicates whether or not chemically defined[kg] | 3.7% | Free (A+,AU,BH,CL,CO,D,E,IL, JO,K,KR,MA,OM,P, PA,PE,S,SG) | 25% | Estimate → |
| 2842.90 | Other: | ||||
| 2842.90.10.00 | Fulminates, cyanates and thiocyanates[kg] | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | Estimate → |
| 2842.90.90 | Other | 3.3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 25% | |
| 2842.90.90.10 | Selenides and tellurides[kg] | Estimate → | |||
| 2842.90.90.50 | Other[kg] | Estimate → | |||
| VI. MISCELLANEOUS |
5 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 2842.10.00.00 at the general rate of 3.7%, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (3.7%) | $370.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $417.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Special program codes in this heading
- A, A*, A+
- Generalized System of Preferences (GSP)
- AU
- U.S.–Australia FTA
- BH
- U.S.–Bahrain FTA
- CL
- U.S.–Chile FTA
- CO
- U.S.–Colombia Trade Promotion Agreement
- D
- African Growth and Opportunity Act (AGOA)
- E, E*
- Caribbean Basin Economic Recovery Act
- IL
- U.S.–Israel FTA
- JO
- U.S.–Jordan FTA
- K
- Agreement on Trade in Pharmaceutical Products
- KR
- U.S.–Korea FTA (KORUS)
- MA
- U.S.–Morocco FTA
- OM
- U.S.–Oman FTA
- P, P+
- CAFTA-DR
- PA
- U.S.–Panama Trade Promotion Agreement
- PE
- U.S.–Peru Trade Promotion Agreement
- S, S+
- USMCA (United States–Mexico–Canada Agreement)
- SG
- U.S.–Singapore FTA
A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.