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HS-4 · Heading

2920Esters of other inorganic acids of non-metals (other than of hydrogen halides) and their salts, their halogenated, sulphonated, nitrated or nitrosated derivatives

Chapter 29: Organic chemicals

Plain-language overview

Use HS-4 2920 when importing or exporting esters of inorganic acids of non-metals, such as thiophosphoric esters like parathion or phosphite esters like dimethyl phosphite. For instance, if you're shipping parathion-methyl for agricultural use, this is the code to apply.

When determining the correct HS-6 line under 2920, consider the specific type of ester. For example, 292011 is for thiophosphoric esters including parathion, while 292019 covers other thiophosphoric esters not including parathion. Knowing the exact chemical composition is crucial for correct classification.

If your product is a phosphite ester, you’ll need to choose between lines like 292021 for dimethyl phosphite or 292022 for diethyl phosphite. If your phosphite ester doesn’t fit these descriptions, you may need 292029, which covers other phosphite esters not elsewhere classified.

For esters of other inorganic acids, 292030 is appropriate for substances like endosulfan. If your product doesn’t fall into the previous categories, check 292090, which includes other esters and derivatives not classified under thiophosphoric or phosphite esters.

Keywords & topics

Useful terms traders and brokers use for this HS-4 heading.

HS-4 2920 · thiophosphoric esters · phosphite esters · parathion · dimethyl phosphite · endosulfan · chemical derivatives · inorganic acid esters · agricultural chemicals · import classification

Examples

Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.

  • Parathion (ISO) and parathion-methyl (ISO) for agricultural pesticides.
  • Dimethyl phosphite used in chemical synthesis.
  • Diethyl phosphite for use in organic chemistry.
  • Trimethyl phosphite as a reagent in chemical reactions.
  • Endosulfan for agricultural applications.
  • Other phosphite esters not specified in the previous categories.

Common questions

Frequent classification questions with short practical guidance.

What is HS code 2920 used for?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to classify thiophosphoric esters?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

What are phosphite esters in HS-4 2920?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Is parathion-methyl classified under HS-4 2920?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How do I determine the right HS-6 code for esters?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What are the differences between HS-6 lines under 2920?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Related topics

Common real-world topics that come up during code comparison.

how to classify esters of inorganic acids

Use this topic to narrow your shortlist, then validate the final code against legal wording.

difference between thiophosphoric and phosphite esters

Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.

HS-4 2920 for agricultural chemicals

Use this topic to narrow your shortlist, then validate the final code against legal wording.

importing parathion under HS code

Check the exact product specs and destination-country tariff notes before finalizing the code.

shipping phosphite esters and their derivatives

Use this topic to narrow your shortlist, then validate the final code against legal wording.

understanding HS-6 classifications for esters

Use this topic to narrow your shortlist, then validate the final code against legal wording.

establishing the correct HS code for endosulfan

Use this topic to narrow your shortlist, then validate the final code against legal wording.

n.e.c. in heading no. 2920 meaning

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of products fall under HS-4 2920?
HS-4 2920 covers esters of inorganic acids of non-metals, including thiophosphoric esters, phosphite esters, and their derivatives.
How do I choose between HS-6 lines under 2920?
Identify the specific chemical compound and its derivatives to select the correct HS-6 line, such as thiophosphoric or phosphite esters.
Can I use HS-4 2920 for shipping pesticides?
Yes, products like parathion and parathion-methyl, which are thiophosphoric esters, fall under HS-4 2920.
What does n.e.c. mean in HS-6 classifications?
n.e.c. stands for 'not elsewhere classified' and is used for products that do not fit into the specified categories.
Is endosulfan classified under HS-4 2920?
Yes, endosulfan is classified under HS-6 line **292030**, which covers esters of other inorganic acids.

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