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HSChapter 28
U.S. imports of salts of oxometallic or peroxometallic acids, not elsewhere specified (HS 284190) totaled $10.0M in April 2026, traded with 15 countries.
Importers of Salts of Oxometallic or Peroxometallic Acids, Not Elsewhere Specified paid $1.1M in duties in April 2026 — an effective duty rate of 12% on $9.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $6.9M | $126K | -$6.8M |
| CANADA | $460K | $2.3M | +$1.9M |
| JAPAN | $685K | $584K | -$101K |
| MEXICO | -- | $1.1M | +$1.1M |
| FRANCE | -- | $794K | +$794K |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2841905000 | SALT OF OXOMETALLIC/PEROXOMETALLTC ACIDS, NESOI | $9.6M | 11.46% | $1.0M |
| 2841904000 | ALUMINATES | $190K | 18.39% | $26K |
| 2841902000 | AMMONIUM PERRHENATE | $100K | -- | -- |
| 2841901000 | VANADATES,(VANADIUM CONTENT) | $66K | 0.78% | $512 |
| 2841904500 | CHROMATES OF ZINC OR OF LEAD | $27K | 28.70% | $8K |
SALT OF OXOMETALLIC/PEROXOMETALLTC ACIDS, NESOI
ALUMINATES
AMMONIUM PERRHENATE
VANADATES,(VANADIUM CONTENT)
CHROMATES OF ZINC OR OF LEAD
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2841909000 | SALT OF OXOMETALLIC OR PEROXOMETALLIC ACIDS NESOI | $4.7M |
| 2841904000 | ALUMINATES | $922K |
| 2841904500 | CHROMATES OF ZINC OR OF LEAD | $196K |
SALT OF OXOMETALLIC OR PEROXOMETALLIC ACIDS NESOI
2.4M kg
ALUMINATES
2.8M kg
CHROMATES OF ZINC OR OF LEAD
1.2K kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| State | Imports | Exports | Balance |
|---|---|---|---|
| Georgia | $6.8M | $155K | -$6.6M |
| Pennsylvania | $8K | $1.3M | +$1.3M |
| Kentucky | $101K | $1.1M | +$997K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAVANNAH, GA | $6.3M | $17K | -$6.3M |
| JFK INTERNATIONAL AIRPORT, NY | $100K | $1.5M | +$1.4M |
| LOS ANGELES, CA | $1.2M | $136K | -$1.0M |