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HSChapter 28
U.S. imports of precious metal compounds and amalgams (other) (HS 284390) totaled $34.0M in April 2026, traded with 16 countries.
Importers of Precious Metal Compounds and Amalgams (Other) paid $730K in duties in April 2026 — an effective duty rate of 4.4% on $16.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Precious Metal Compounds and Amalgams (Other) imports of $34.0M in April 2026 ran 95% above the year-to-date monthly average of $17.4M.
Last updated: April 2026 dataPlatinum-group metal compounds — including platinum, palladium, rhodium, iridium, osmium, and ruthenium salts and complexes — along with amalgams of precious metals not classified elsewhere, are captured under this residual heading. These materials are essential to automotive catalytic converter manufacturing, fuel cell catalyst layers, and specialty chemical synthesis. The United Kingdom and Japan lead US imports under this heading, with South Africa — the world's dominant platinum-group metal producer — also a significant source. The single 10-digit line (2843900000) covers a chemically diverse range of products, so precise chemical identity documentation is critical for classification and valuation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
South Africa holds the world's largest reserves of platinum-group metals (PGMs) and is a primary producer of platinum, palladium, and rhodium. Downstream chemical processing of PGMs into salts and coordination compounds occurs both domestically and in refining hubs such as the UK and Japan, but South Africa's upstream dominance makes it a direct supplier of certain PGM compounds to the US market.
An amalgam is an alloy of mercury with a precious metal (gold, silver, platinum, etc.) and is classified under 2843900000 when it involves a precious metal. Mercury compounds with non-precious metals or other elements are classified elsewhere in Chapter 28. The key classification criterion is whether the mercury is alloyed with a precious metal as defined in HTS Chapter 28 notes.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | -- | $64.9M | +$64.9M |
| UNITED KINGDOM | $25.3M | $1.3M | -$24.0M |
| SOUTH AFRICA | $4.7M | $9.2M | +$4.6M |
| ITALY | $37K | $5.1M | +$5.0M |
| GERMANY | $1.4M | $1.8M | +$343K |
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 |
|---|---|---|---|---|
| 2843900000 | ORGANIC COMPOUND PRECIOUS METAL; AMALGRAMS, NESOI | $34.0M | 4.42% | $730K |
ORGANIC COMPOUND PRECIOUS METAL; AMALGRAMS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2843900000 | COMPOUNDS OR AMALGAMS OF PRECIOUS METALS, NESOI | $90.8M |
COMPOUNDS OR AMALGAMS OF PRECIOUS METALS, NESOI
52.1K 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 |
|---|---|---|---|
| Pennsylvania | $1.4M | $55.1M | +$53.7M |
| New Jersey | $25.7M | $6.0M | -$19.6M |
| Oklahoma | $95K | $9.5M | +$9.5M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | -- | $54.7M | +$54.7M |
| JFK INTERNATIONAL AIRPORT, NY | $28.4M | $2.9M | -$25.5M |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | $2.1M | $13.4M | +$11.3M |