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HS Code for Tetrahydrophthalic anhydride
Author: Ivy Tse
Published:
Updated:

HS Code for Tetrahydrophthalic Anhydride 2025

TL;DR: The HS code for tetrahydrophthalic anhydride is 2917.20 in 2025. This guide covers classification, 2025 updates, regional variations, and shipping best practices for tariff compliance.

What is Tetrahydrophthalic Anhydride?

Tetrahydrophthalic anhydride is a cyclic organic compound used in resins and coatings.

It acts as a curing agent in epoxy systems for industrial applications worldwide.

Accurate HS code for tetrahydrophthalic anhydride ensures smooth international trade.

HS Code Basics Explained

HS codes standardize global product classification for customs and duties.

The Harmonized System covers 21 sections with 6-digit codes extendable nationally.

  • Chapter 29: Organic chemicals
  • Updated by World Customs Organization (WCO)
  • Essential for 2025 tariff compliance
  • Supports trade statistics and regulations
  • No WCO core changes until 2027

Regional updates impact chemical shipments in 2025.

Exact HS Code for Tetrahydrophthalic Anhydride: 2917.20

Tetrahydrophthalic anhydride uses HS code 2917.20 globally in 2025.

HS LevelCodeDescription
Chapter29Organic chemicals
Heading2917Polycarboxylic acids, anhydrides
Subheading2917.20Cyclanic, cyclenic polycarboxylic acids, anhydrides
Product2917.20.00Tetrahydrophthalic anhydride

Verify local extensions for precise tariff rates. Source: WCO HS Nomenclature.

2025 HS Code Updates for Chemicals

2025 brings key regional HS code changes affecting chemicals like 2917.20.

Region2025 ChangeImpact on HS 2917.20
USADe minimis threshold ends Aug 2025Duties on all tetrahydrophthalic anhydride imports
EUCombined Nomenclature 2025Refined chemical subheadings
GCC Countries12-digit HS mandatoryDetailed classification required
ChinaNational tariff adjustmentsUpdated rates for organic chemicals
AustraliaHS 2022 extensionsStricter chemical import rules

Monitor these for compliance.

How to Classify Tetrahydrophthalic Anhydride Correctly

Follow this step-by-step process for accurate HS code assignment.

  1. Review chemical structure and CAS number (85-43-8)
  2. Match to Chapter 29 headings
  3. Confirm subheading 2917.20
  4. Check national tariff schedules
  5. Consult SDS and expert rulings

Avoid misclassification penalties in 2025.

Common Misclassifications to Avoid

Errors in HS code for tetrahydrophthalic anhydride lead to delays and fines.

  • Confusing with phthalic anhydride (2917.35)
  • Ignoring purity levels
  • Overlooking mixture rules
  • Missing regional digits
  • Forgetting 2025 updates

Use official databases for verification.

2025 Case Study: Chemical Shipment Success

A 2025 shipment of tetrahydrophthalic anhydride avoided penalties via proper HS use.

Exporter from Asia to EU used 29172000, saving 8% duties under FTA.

  • Pre-shipment customs consult
  • Updated SDS with HS code
  • Regional variation checks
  • Result: On-time delivery, cost savings

Demonstrates value of accurate classification.

Best Practices for Shipping in 2025

Optimize tetrahydrophthalic anhydride shipments with these tips.

  1. Select IATA/IMO certified carriers
  2. Include HS 2917.20 on commercial invoice
  3. Attach English/translated SDS
  4. Declare proper UN number (3265)
  5. Track 2025 regional HS changes

Ensures compliance and efficiency.

FAQ: HS Code for Tetrahydrophthalic Anhydride

Quick answers to top questions on HS 2917.20 and 2025 compliance.

What is the HS code for tetrahydrophthalic anhydride?

HS code 2917.20 covers tetrahydrophthalic anhydride worldwide.

Has the HS code for tetrahydrophthalic anhydride changed in 2025?

No core WCO change; 2917.20 remains, but check regional extensions.

What chapter is tetrahydrophthalic anhydride under?

Chapter 29 for organic chemicals.

How does 2025 US de minimis affect shipments?

All imports over $800 face full duties starting late 2025.

Is 2917.20 correct for EU imports?

Yes, use EU CN 29172000 for tetrahydrophthalic anhydride.

What documents need HS code?

Commercial invoice, packing list, and SDS must include 2917.20.

Any GCC changes for 2025?

GCC requires 12-digit HS codes from January 2025.

CAS number for classification?

CAS 85-43-8 confirms HS 2917.20 placement.

Penalties for wrong HS code?

Fines up to 100% of shipment value plus delays.

Resources

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