U.S. imports of Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified (HS 284190) totaled $21.0M in August 2026, imported from 18 countries.
Importers of Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified paid $2.6M in duties in August 2026, an average duty rate of 12.36% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified imports of $21.0M in August 2026 ran 57% above the year-to-date monthly average of $13.4M.
Last updated: August 2026 dataA chemically diverse residual heading, this category captures vanadates, aluminates, ammonium perrhenate, chromates of zinc or lead, and other oxometallic salts that do not fit more specific provisions — each with distinct industrial roles ranging from catalyst supports to specialty pigments and rhenium recovery. The US schedule assigns separate lines to vanadates (2841901000), ammonium perrhenate (2841902000), aluminates (2841904000), chromates of zinc or lead (2841904500), and two residual lines for remaining compounds. South Korea and Canada lead US import supply for this heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
83 import shipments a month
Importers should present a certificate of analysis confirming the compound is ammonium perrhenate (NH4ReO4) with stated rhenium purity. Because rhenium is a critical mineral used in superalloy and catalyst applications, CBP may request additional documentation to verify the compound's identity and value. Filing under the correct line (2841902000) rather than the residual avoids post-entry classification disputes.
Chromates of zinc and lead (2841904500) contain both hexavalent chromium and, in the case of lead chromate, a heavy metal regulated under TSCA and various state environmental laws. Importers must ensure TSCA compliance and provide proper hazardous materials documentation. Products intended for use in coatings or pigments may also face state-level restrictions under regulations such as California's Proposition 65.
Subheading 2 of 7 in heading 2841
Subheading 284190 · $21.0M of $89.3M
ImportsExports
Imports
$21.0MYoY · free account
Exports
$10.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $133.1M of Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified and exported $75.0M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 284190 — Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2841905000 | Salt of Oxometallic/Peroxometalltc Acids, NESOI | $20.9M | 12.29% | 93.45% | $2.6M |
| 2841904000 | Aluminates | $96K | 25.59% | 71.24% | $25K |
| 2841904500 | Chromates of Zinc or of Lead | $3K | 10.00% | 100.00% | $268 |
| 2841901000 | Vanadates,(Vanadium Content) | — | -- | -- | -- |
| 2841902000 | Ammonium Perrhenate | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2841909000 | Salt of Oxometallic or Peroxometallic Acids NESOI | $9.3M |
| 2841904000 | Aluminates | $719K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
South Korea and Canada together supply 90% of it. China pays 39.7% duty; Canada 0.0%.
customs district
entry
rate provision · imports
6.6% enters free of duty; duty collected equals 12.36% of imports for consumption.