U.S. imports of prepared driers (HS 321100) totaled $2.2M in August 2026, imported from 19 countries.
Importers of Prepared Driers paid $203K in duties in August 2026, an effective tariff rate of 9.03% of the $2.2M imported — duty actually collected as a share of that value, not the published tariff schedule. Prepared Driers imports of $2.2M in August 2026 ran 56% above the year-to-date monthly average of $1.4M.
Last updated: August 2026 dataPrepared driers are metal-organic compounds — typically cobalt, manganese, zirconium, or calcium soaps — added to alkyd and oil-based coatings to catalyze oxidative crosslinking and accelerate dry times. Spain leads US imports under this heading, followed by Austria and France, reflecting European dominance in specialty organometallic chemistry for the coatings industry. Because prepared driers are functional additives rather than finished coatings, they classify separately from the paints they serve; importers should confirm that the product is a formulated drier blend rather than a pure metal salt, which could fall under a different chemical heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
71 shipments/mo
Heading 3211 covers formulated drier preparations — blends of metal soaps (such as cobalt, manganese, or zirconium octoates or naphthenates) combined with solvents or other components ready for addition to coatings. A pure, single-component metal carboxylate salt without formulation additives would typically classify under Chapter 29 (organic chemicals) rather than 3211. The presence of a solvent carrier or a multi-metal blend is a strong indicator of a prepared drier.
Cobalt compounds face increasing scrutiny under occupational health and environmental regulations in various jurisdictions, though US import classification itself does not impose specific admissibility restrictions on prepared driers. Importers should nonetheless review OSHA hazard communication requirements and ensure SDS documentation is current, particularly for cobalt-containing formulations, as downstream users may require compliance documentation.
HSChapter 32
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Subheading 1 of 1 in heading 3211
Subheading 321100 · $2.2M of $2.2M
ImportsExports
Imports
$2.2MYoY · free account
Exports
$800KYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $17.7M of Prepared Driers.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3211000000 | Prepared Driers | $2.2M | 9.03% | 86.27% | $203K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3211000000 | Prepared Driers | $800K |
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
Spain and Austria together supply 73% of it. India pays 13.7% duty; Mexico 0.0%.
customs district
destination
entry
rate provision · imports
13.7% enters free of duty; duty collected equals 9.03% of total import value.