Tributyltin (TBT) compounds, classified under a single line (2931200000), are organotin biocides whose use in marine antifouling paints has been globally restricted under the International Maritime Organization's AFS Convention, sharply narrowing their commercial application to specialty industrial uses such as wood preservation and certain PVC stabilizers. India leads US imports under this heading, with Ukraine and China also supplying the market. EPA regulates TBT compounds under TSCA, and importers should confirm that the intended application does not conflict with existing US restrictions on TBT-based antifouling coatings.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The use of TBT-based antifouling paints on most vessel types is prohibited under the IMO's International Convention on the Control of Harmful Anti-fouling Systems (AFS Convention), to which the US is a party. EPA has also restricted TBT antifouling uses domestically. Importers seeking to use TBT compounds in antifouling applications should consult EPA's Office of Pesticide Programs and confirm that any intended use has a current, valid registration before importing.
Residual commercial demand for TBT compounds is concentrated in industrial wood preservation, certain PVC heat stabilizer formulations, and specialty catalyst applications. These uses remain subject to EPA TSCA oversight and, where the compound functions as a pesticide, FIFRA registration requirements. Importers should clearly document the specific end use on commercial invoices to facilitate accurate classification and regulatory review.
Trade Directory
List your company under HS 293120 — Tributyltin Compounds, so the companies trading it can find you. Be the first supplier listed.
Subheading 8 of 17 in heading 2931
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 |
|---|---|---|---|---|
| 2931200000 | Tributyltin Compounds | — | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2931200000 | Tributyltin Compounds | $62K |
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
—YoY · free account
Exports
—YoY · free account
Low of 9 reported months · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $159K of Tributyltin Compounds.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through September 2026 · imports 9 of 12 months reported, exports 11 of 12 months reported. Source: U.S. Census Bureau.
Imports · September 2026
origin
customs district
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rate provision · imports
None recorded for this period.