U.S. imports of Antimony Oxides (HS 282580) totaled $25.5M in August 2026, imported from 16 countries.
Importers of Antimony Oxides paid $292K in duties in August 2026, an average duty rate of 1.15% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Antimony Oxides imports of $25.5M in August 2026 ran 19% below the year-to-date monthly average of $31.5M.
Last updated: August 2026 dataAntimony oxides — primarily antimony trioxide — serve as a flame-retardant synergist in plastics, textiles, and rubber, and as a catalyst in PET polyester production, making them a specialty industrial input with concentrated sourcing. Imports under this heading (2825800000) have drawn attention in the context of critical minerals policy, as global antimony supply chains are heavily influenced by Chinese smelter output even when the immediate US supplier is a European processor such as Belgium or France. Trade professionals should note that antimony compounds may be subject to Section 301 tariff considerations depending on the country of origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
65 import shipments a month
HTS heading 282580 covers all antimony oxides under a single 10-digit line (2825800000), so antimony trioxide (Sb₂O₃) and antimony pentoxide (Sb₂O₅) are both captured here. Importers should confirm the specific oxide form on commercial invoices and certificates of analysis, as end-use specifications for flame retardancy versus catalyst applications differ.
Belgium and France host major antimony smelting and refining operations that process ore and intermediate concentrates — much of it originating from mines in China and other producing countries — into refined antimony trioxide for export. This means the country of origin for duty purposes may be a European refiner even though the underlying raw material supply chain runs through Asia, a distinction relevant to Section 301 tariff exposure.
Subheading 1 of 9 in heading 2825
Subheading 282580 · $25.5M of $71.5M
Trade Directory
List your company under HS 282580 — Antimony Oxides, 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 |
|---|---|---|---|---|---|
| 2825800000 | Antimony Oxides | $25.5M | 1.15% | 9.17% | $292K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2825800000 | Antimony Oxides | $3.2M |
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.
ImportsExports
Imports
$25.5MYoY · free account
Exports
$3.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $450.2M of Antimony Oxides and exported $31.8M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
France and Thailand together supply 46% of it.
customs district
destination
entry
rate provision · imports
90.8% enters free of duty; duty collected equals 1.15% of imports for consumption.