HS Code for Thiuram

Thiuram compounds are classified under HS code 2930.30, which specifically covers thiuram mono-, di-, or tetrasulphides. These are organo-sulphur compounds where the sulphur atom is bonded to a carbon atom that is also part of a thiocarbonyl group. The classification is determined by the chemical structure of the molecule, falling within Chapter 29 for separate chemically defined organic compounds. Under the General Rules of Interpretation (GRI) 1, the heading text for 2930 explicitly includes organo-sulphur compounds, and the subheading 2930.30 provides the specific designation for thiurams. These chemicals are primarily used in the rubber industry as vulcanization accelerators or as fungicides in agriculture. However, for classification in 2930.30, the product must be a chemically pure or separate chemically defined compound. If the thiuram is mixed with other substances to function as a prepared rubber accelerator, it would move to Chapter 38. The chemical structure must contain the characteristic thiuram group to qualify for this specific subheading. Importers must ensure that the purity levels and the absence of additives meet the criteria for Chapter 29, as the presence of stabilizers or anti-dusting agents is permitted only within strict limits defined by the Chapter Notes.

Products Included

• Tetramethylthiuram disulfide (TMTD)
• Tetraethylthiuram disulfide (TETD)
• Tetramethylthiuram monosulfide (TMTM)
• Dipentamethylenethiuram tetrasulfide
• Thiuram disulphide used as a chemical intermediate

Common Misclassification

Thiuram is frequently misclassified under HS code 3812.10, which covers prepared rubber accelerators. The distinction lies in whether the product is a single chemically defined compound (2930.30) or a mixture/preparation (3812.10). Additionally, it may be confused with other organo-sulphur compounds in 2930.90 if the specific thiuram structure is not identified.

FAQ

What is the HS code for Thiuram?

The HS code for thiuram mono-, di-, or tetrasulphides is 2930.30.

Can thiuram be classified as a pesticide?

While used as a fungicide, if it is a pure chemical, it remains in 2930.30. If it is put up in forms or packings for retail sale as a fungicide, it may be classified under heading 3808.