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HS Code for Isophthalic acid
Author: Ivy Tse
Published:
Updated:

HS Code for Isophthalic Acid 2025 Guide

TL;DR: The HS code for isophthalic acid is 2917.39 in Chapter 29. 2025 updates include US de minimis changes and GCC 12-digit expansions for tariff compliance in e-commerce shipments. Verify locally for accurate classification.

What is the HS code for isophthalic acid in the 2025 HS codes guide?

HS codes standardize global trade classification under WCO rules. Isophthalic acid, a key polyester raw material, falls under 2917.39 for tariff compliance 2025.

  • 6-digit international base code.
  • Countries extend to 8-12 digits.
  • Updated every 5 years; next WCO revision 2027.
  • Essential for customs declarations worldwide.
  • Supports e-commerce tariff compliance 2025.

Exact HS code breakdown for isophthalic acid 2917.39

The precise HS code for isophthalic acid is 2917.39.

LevelCodeDescription
Chapter29Organic chemicals
Heading2917Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
Subheading2917.39Aromatic polycarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other
  • Applies to pure isophthalic acid (C8H6O4).
  • Excludes mixtures or derivatives.
  • Confirm with product SDS for purity.

Chemical properties of isophthalic acid in HS code context

Isophthalic acid is an aromatic dicarboxylic acid with formula C8H6O4.

  • Melting point: 347°C.
  • Low solubility in water (0.3 g/L).
  • High thermal and chemical stability.
  • Meta-positioned carboxyl groups distinguish it from terephthalic acid.

These properties justify its placement in 2917.39 for tariff compliance 2025.

Main applications driving isophthalic acid HS code usage

Isophthalic acid serves as a polyester raw material in high-performance applications.

  1. Unsaturated polyester resins for marine hulls.
  2. Automotive coatings and gelcoats.
  3. Construction: Chemical-resistant tanks.
  4. Packaging: PET copolymers.
  5. Textiles: Flame-retardant fibers.

HS code 2917.39 ensures proper tariffs for these shipments.

2025 HS code changes affecting isophthalic acid imports

Regional updates impact 2917.39 classification in 2025.

Region2025 ChangeImpact on HS Code 2917.39
USADe minimis threshold ends for China shipments post-Aug 2025Full HTS declarations mandatory for all values
GCC Countries12-digit HS implementation Jan 1, 2025Extensions like 2917.39.90 required
EUCombined Nomenclature 2025 updateStable core HS; check CN codes
ChinaNational tariff adjustmentsVerify local 10-digit codes
AustraliaHS 2022 extensions persistNo major shift for chemicals

Source: WCO HS Nomenclature (https://www.wcoomd.org/en/topics/nomenclature.aspx).

How to find and verify HS code for isophthalic acid in 2025: Step-by-step

Use this guide for accurate HS code classification 2025.

  1. Identify chemical: Confirm C8H6O4 aromatic dicarboxylic acid.
  2. Select Chapter 29: Organic chemicals.
  3. Choose Heading 2917: Polycarboxylic acids.
  4. Assign Subheading 2917.39: Aromatic types.
  5. Check national extensions for tariff compliance 2025.
  6. Consult customs database or expert.
  7. Validate with product documentation.

Common challenges classifying isophthalic acid HS code 2025

Classification errors lead to delays and penalties.

  • Purity thresholds affecting subheadings.
  • Mixtures with solvents or impurities.
  • Regional HS code changes 2025 variations.
  • E-commerce low-value shipment rules.
  • End-use declarations for special tariffs.

Proactive verification prevents issues.

2025 Case Study: HS Code Compliance Success

A chemical exporter navigated GCC changes using 2917.39.

  • Avoided 15% duty misclassification.
  • Implemented 12-digit codes early.
  • Reduced clearance time by 40%.
  • Applied to polyester raw material shipments.

Demonstrates value of timely HS code updates.

FAQ: HS Code for Isophthalic Acid 2025

What is the HS code for isophthalic acid?
2917.39 under Chapter 29 for aromatic polycarboxylic acids.
Does the HS code for isophthalic acid change in 2025?
No global WCO change until 2027, but check regional extensions.
How does US de minimis rule affect isophthalic acid shipments in 2025?
Ends for certain origins, requiring full declarations for all values.
What is the GCC HS code for isophthalic acid in 2025?
2917.39 extended to 12 digits, e.g., 2917.39.90.
Is isophthalic acid classified differently if impure?
Purity below thresholds may shift to mixture codes; verify SDS.
How to confirm tariff compliance 2025 for 2917.39?
Use national customs tools and consult experts for updates.
What chapter is isophthalic acid HS code under?
Chapter 29: Organic chemicals.
Are there 2025 HS code changes for chemicals like isophthalic acid?
Regional shifts yes; core 2917.39 stable per WCO.
Why use HS code for isophthalic acid in e-commerce?
Ensures accurate duties and fast customs clearance.
Where to find official 2025 HS codes guide?
WCO website or national tariff databases.

Resources for HS Code Classification

For tariff compliance 2025 assistance, consider tools like FreightAmigo. Book a Demo. Contact: HKG +852 24671689 | CHN +86 4008751689 | USA +1 337 361 2833 | GBR +44 808 189 0136 | AUS +61 180002752 | Email: enquiry@freightamigo.com.

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