U.S. imports of Thiuram Mono-, Di-, or Tetrasulfides (SITC 51543) totaled $371K in August 2026, imported from 7 countries.
Importers of Thiuram Mono-, Di-, or 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-, or Tetrasulfides imports of $371K in August 2026 ran 12% below the year-to-date monthly average of $422K.
Last updated: August 2026 dataThiuram sulfides occupy a specialized niche as rubber vulcanization accelerators and, in some formulations, as fungicidal active ingredients — thiuram disulfide (thiram) is a well-known example used in both rubber processing and seed treatment. The sulfur-chain length (mono-, di-, or tetra-) determines both the chemical reactivity and the end-use suitability, making precise product specification critical for buyers in the rubber and agrochemical industries. Importers should confirm whether the specific thiuram compound is subject to EPA pesticide registration requirements if it is formulated for agricultural 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
Thiuram monosulfides and disulfides are primarily used as ultra-accelerators in rubber vulcanization, imparting fast cure rates. Tetrasulfides are slower-acting and often preferred where controlled crosslink density is needed. Buyers should specify the exact compound to ensure the product meets their processing requirements.
Trade-remedy exposure depends on the specific compound and country of origin. Importers should check current antidumping and countervailing duty orders maintained by the Department of Commerce, as specialty chemical categories can be subject to such measures, particularly for shipments from major chemical-producing countries.
Basic heading 426 of 465 in section 5
Basic heading 51543 · $371K of $27.5B
Imports · August 2026
origin
China and India together supply 67% of it. China pays 36.0% duty; Belgium 10.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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-, or 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.
Trade Directory
List your company and tag the 6-digit products you trade, so the companies trading them can find you. Be the first supplier listed.