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HS Code for Diols
Author: Ivy Tse
Published:
Updated:

HS Code for Diols: 2025 Guide

TL;DR: Discover the exact HS code for diols like ethylene glycol (2905.31) and propylene glycol (2905.32) in this 2025 guide. Covers Chapter 29 classifications, regional changes like GCC 12-digit codes, US de minimis updates, and tariff compliance steps for seamless chemical shipping.

What Is the HS Code for Diols in 2025?

Diols fall under HS Chapter 29, specifically heading 2905 for acyclic polyhydric alcohols.

These organic chemicals with two hydroxyl groups are essential in industries worldwide.

  • Primary HS code for diols: 2905.xx.
  • Key examples: Ethylene glycol (2905.31), propylene glycol (2905.32).
  • Used in antifreeze, plastics, pharmaceuticals.
  • Accurate classification ensures low tariffs and fast clearance.
  • Check 8-12 digit extensions for your destination.

Mastering the HS code for diols prevents costly errors in 2025 trade.

2025 HS Code Changes Affecting Diols Classification

While WCO HS remains stable until 2027, 2025 brings critical regional updates for diols.

National changes demand attention for tariff compliance.

  • US de minimis threshold ends August 29, 2025 – full HS declaration mandatory.
  • GCC countries adopt 12-digit HS codes January 1, 2025.
  • EU updates Combined Nomenclature with refined chemical subheadings.
  • USPS requires HTS codes for all shipments from September 1.
  • No global WCO revisions, but local rules tighten.
Region2025 HS Code ChangeImpact on Diols (2905)
USADe minimis endsFull 10-digit HTS for all diols imports
GCC12-digit implementationPrecise subcodes like 2905.31.00.10
EUCombined NomenclatureEnhanced 2905 subheadings for purity levels
GlobalWCO stableCore diols codes unchanged

Source: WCO Nomenclature (stable through 2027).

Complete List of HS Codes for Common Diols 2025

HS Chapter 29 groups diols under 2905: Acyclic alcohols with multiple OH groups.

  1. 2905.31: Ethylene glycol (ethanediol) – most traded diol.
  2. 2905.32: Propylene glycol (propane-1,2-diol).
  3. 2905.39: Other diols like 1,3-butanediol, neopentyl glycol.
  4. 2905.11-2905.22: Related polyols, but diols specifically 2905.3x.
  5. Always verify national tariffs via official tools.

These HS codes for diols apply globally with local extensions.

How to Find the Correct HS Code for Diols Step-by-Step

This proven process ensures accurate diols classification in 2025.

  1. Examine chemical structure: Confirm two -OH groups on acyclic chain.
  2. Reference WCO HS Explanatory Notes for Chapter 29.
  3. Select base heading 2905, then subheading by name/purity.
  4. Add national digits (e.g., US HTS 2905.31.0000).
  5. Validate with destination customs database or broker.
  • Tool tip: Use official sites like USITC HTS Search.
  • Avoid generic codes – specify exact diol type.

Follow these steps for 100% tariff compliance 2025.

GCC 12-Digit HS Codes for Diols in 2025

GCC's shift to 12-digit HS codes starts January 1, 2025, for precise chemical duties.

Affects Saudi Arabia, UAE, Kuwait, Oman, Qatar, Bahrain.

  • 2905.31.00.10: Pure ethylene glycol (>99%).
  • 2905.32.00.20: Industrial propylene glycol.
  • 2905.39.00.30: Other saturated acyclic diols.
  • Benefits: Granular tariffs, better trade stats.
  • Importers must update systems now.

Essential for Middle East chemical shipments.

Why Accurate HS Code for Diols Matters in 2025 Trade

Errors in diols HS classification lead to delays, fines, and higher costs.

  • Tariffs: Wrong code = 5-20% duty hikes (e.g., 2905.31 averages 3.7% US).
  • Regulations: REACH (EU), TSCA (US) require exact codes.
  • Clearance: Mismatches cause 2-7 day holds.
  • Fines: Up to $10K per US violation post-de minimis.
  • Stats: Accurate data for market analysis.

Prioritize correct HS code for diols for smooth 2025 logistics.

US De Minimis Changes and Diols HS Codes 2025

Ending August 29, 2025, US de minimis forces full HS declaration on all imports.

Previously exempt low-value shipments now need 10-digit HTS.

  • Impacts e-commerce chemical sellers.
  • Diols example: 2905.31.0000 for ethylene glycol.
  • Prepare invoices with detailed HS codes.
  • USPS/CBP enforcement ramps up September 1.
  • Average processing time increases 20-30% without compliance.

FAQ: HS Code for Diols 2025

What is the main HS code for diols?

Diols classify under HS 2905, with 2905.31 for ethylene glycol and 2905.32 for propylene glycol.

What is HS code 2905.31 used for?

HS code 2905.31 covers ethylene glycol (ethanediol), a key diol in antifreeze and polyester production.

Has the HS code for diols changed in 2025?

Core WCO HS codes for diols remain 2905.xx, but regions like GCC add 12-digit extensions.

How does US de minimis affect diols shipments?

Post-August 2025, all diols imports require full 10-digit HTS codes regardless of value.

What are GCC 12-digit HS codes for ethylene glycol?

GCC uses 2905.31.00.10 for pure ethylene glycol starting January 1, 2025.

Where to verify HS code for diols?

Use WCO HS database, USITC HTS, or EU TARIC for official 2025 diols classifications.

Why use exact HS codes for propylene glycol?

HS 2905.32 ensures correct duties, REACH compliance, and faster customs clearance.

Are diols HS codes the same globally?

Base 6-digit codes match worldwide, but 8-12 digit extensions vary by country.

What if I use wrong HS code for diols?

Risks include fines, seizures, delays, and tariff penalties under 2025 rules.

Resources for HS Code Compliance

For expert assistance with HS code for diols and 2025 tariff compliance, Book a Demo.

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