2839.90—Silicates; commercial alkali metal silicates, other
General duty rate
3.1%
Across 2 10-digit lines
Coverage on this page
Up one level: 2839 — Silicates; commercial alkali metal silicates: (heading)
Plain-English explanation
HTS 2839.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Silicates; commercial alkali metal silicates, 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 2 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 2839.90(2)
Pick a line to view full rate detail and compute landed duty
Frequently asked questions
What does HTS 2839.90 cover?
HTS 2839.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Silicates; commercial alkali metal silicates, other. It belongs to Chapter 28 and rolls up 2 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 2839.90?
Every 10-digit line under HTS 2839.90 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 2839.90?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 2839.90 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 2839.90?
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