U.S. imports of Thiuram Mono-, Di-, and Tetrasulfides (HS 293030) totaled $371K in August 2026, imported from 7 countries.
Importers of Thiuram Mono-, Di-, and Tetrasulfides paid $84K in duties in August 2026, an average duty rate of 22.66% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Thiuram Mono-, Di-, and Tetrasulfides imports of $371K in August 2026 ran 12% below the year-to-date monthly average of $422K.
Last updated: August 2026 dataTetramethylthiuram monosulfide (TMTM, 2930303000) and the di- and tetrasulfide variants (2930306000) are primary vulcanization accelerators for the rubber industry, used in tire manufacturing, latex goods, and industrial rubber components. China is the leading US supplier by a wide margin, with Italy and Belgium representing European specialty producers. Importers should note that certain thiuram compounds also carry pesticide registrations as fungicides, which can trigger dual-use classification questions and EPA FIFRA compliance obligations depending on the declared end use.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
19 import shipments a month
Yes — tetramethylthiuram disulfide (TMTD), for example, is registered as a fungicide in some markets while also serving as a rubber vulcanization accelerator. The correct HTS line depends on the principal use of the imported product. If imported for pesticidal use, EPA FIFRA registration requirements apply; if for rubber processing, those obligations generally do not. Importers should document the intended end use clearly in commercial invoices and consult a customs broker to confirm the appropriate classification.
As of current schedules, thiuram sulfides from Italy and Belgium are not subject to Section 301 tariffs, which apply to Chinese-origin goods. Importers sourcing from China should verify current Section 301 list applicability for the specific HTS line, as these measures can affect landed cost calculations significantly.
ImportsExports
Imports
$371KYoY · free account
Exports
$341KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $4.8M of Thiuram Mono-, Di-, and Tetrasulfides and exported $2.7M.
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 August 2026. Source: U.S. Census Bureau.
Subheading 4 of 8 in heading 2930
Subheading 293030 · $371K of $86.4M
Trade Directory
List your company under HS 293030 — Thiuram Mono-, Di-, and Tetrasulfides, 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 |
|---|---|---|---|---|---|
| 2930306000 | Thiuram Mono-, Di- or Tetrasulfides | $360K | 23.05% | 100.00% | $83K |
| 2930303000 | Tetramethylthiuram Monosulfide | $11K | 10.03% | 80.27% | $1K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2930303000 | Tetramethylthiuram Monosulfide | $227K |
| 2930306000 | Thiuram, Di- or Tetrasulfides | $114K |
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
China and India together supply 67% of it. China pays 36.0% duty; Belgium 10.0%.
customs district
destination
entry
rate provision · imports
0.6% enters free of duty; duty collected equals 22.66% of imports for consumption.