2842.90—Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides, other
General duty rate
3.1%
Across 3 10-digit lines
Coverage on this page
Plain-English explanation
HTS 2842.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides, other. It sits 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 and rolls up 3 10-digit statistical lines, all with a general duty rate of 3.1%. No Chapter 99 tariff modifications or AD/CVD orders currently flag any line under this subheading in Tandom's catalog.
10-digit lines under 2842.90(3)
Pick a line to view full rate detail and compute landed duty
Frequently asked questions
What does HTS 2842.90 cover?
HTS 2842.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides, other. It belongs to Chapter 28 and rolls up 3 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 2842.90?
Every 10-digit line under HTS 2842.90 carries a general (Column 1) duty rate of 3.1%. Section 301, Section 232, and AD/CVD overlays may stack on top of this rate at the per-line level — open a specific 10-digit code to see its complete tariff stack.
How do I find the right 10-digit line under HTS 2842.90?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 2842.90 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Are there AD/CVD orders affecting HTS 2842.90?
No active AD/CVD (antidumping or countervailing duty) orders currently flag any line under HTS 2842.90 in Tandom's catalog. Tandom monitors Federal Register notices daily; any new orders will appear here within 24h of publication.
Learn more
Tandom guides relevant to this code
Trade compliance APIs in broker workflows
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
Open resource
Bulk-classify SKU descriptions with the Tandom HTS Classifier API
Run thousands of product descriptions through HTS classification, score the confidence, and triage borderline rows. Public search endpoint plus the closed-beta three-layer Classifier.
Open resource
How Chapter 99 tariff layers stack on a single entry
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
Open resource
Write a Claude or ChatGPT prompt for broker-grade HTS classification
Why raw LLM prompts fabricate stat suffixes, why MCP-augmented prompts do not, and the prompt template a broker can hand to Claude or ChatGPT today.
Open resource
What changed for low-value shipments after de minimis suspension
What changed for low-value DTC and ecommerce shipments after Section 321 de minimis was suspended in 2025. Filing, fees, and duty math through 2027.
Open resource
Extract HTS-eligible fields from commercial invoices
Turn a PDF commercial invoice into ACE-ready entry data. Which fields to extract, how to chain extraction into HTS classification and duty calculation.
Open resource