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

HS Code for Hydroxides: 2025 Complete Guide

TL;DR: Discover **HS codes for hydroxides** in 2025 under Chapter 28, including NaOH (2815.11), key regional changes like GCC 12-digit expansions, and step-by-step classification for tariff compliance and smooth customs clearance.

What Are HS Codes for Hydroxides in 2025?

**HS codes for hydroxides** form a key part of the Harmonized System under WCO Chapter 28 for inorganic chemicals.

These six-digit codes ensure accurate classification for global shipments.

  • Standardize trade declarations worldwide
  • Determine import duties and taxes
  • Track statistics for chemical exports
  • Critical for tariff compliance 2025 in e-commerce

Key 2025 HS Code Changes for Hydroxides

**Regional updates in 2025 reshape hydroxide classification** without a full WCO revision until 2027.

Focus on national adjustments for precise HS code changes 2025.

Region2025 ChangeImpact on HydroxidesHS Example
USAUSPS HTS mandatory (Sep 1)E-com duty enforcement2815.11 (NaOH)
GCC Countries12-digit codes (Jan 1)Granular chemical tracking2816.10 (Mg(OH)2)
EUCombined Nomenclature updatesRefined Chapter 28 subheadings2818.30 (Al(OH)3)
ChinaCustoms 10-digit expansionsStricter import filings2815.12 (NaOH sol.)

Source: WCO guidelines and national customs portals.

Primary HS Codes for Hydroxides: Chapter 28 Breakdown

**Chapter 28 covers most hydroxide HS codes** for sodium, potassium, and others.

  • 2815.11: Sodium hydroxide (NaOH), solid form
  • 2815.12: Sodium hydroxide, aqueous solution
  • 2815.20: Potassium hydroxide (KOH)
  • 2815.30: Peroxides of sodium or potassium
  • 2816.10: Magnesium hydroxide

HS Code for Aluminum Hydroxide and Others

**Aluminum hydroxide falls under 2818.30** for uses in water treatment and pharmaceuticals.

Other metal hydroxides follow element-specific rules.

  • 2818.30: Aluminum hydroxide – flame retardants, fillers
  • 2825.90: Calcium hydroxide – construction lime
  • 2816.40: Barium/Strontium hydroxides
  • 2817: Zinc hydroxide variants
  • Check form (solid/liquid) for subheadings

How to Find the Correct HS Code for Hydroxides in 2025

**Use this step-by-step process** for accurate hydroxide HS code classification.

  1. Identify the chemical formula (e.g., NaOH, Al(OH)3)
  2. Locate base heading in Chapter 28 via WCO database
  3. Apply 2025 regional digits (e.g., GCC 12-digit)
  4. Review product specs like purity and state
  5. Validate with official customs tools

Classifying Mixed Hydroxide Compounds

**Mixed hydroxides classify by principal component** per WCO Chapter 28 notes.

Avoid errors in tariff compliance 2025.

  • Principal function determines heading
  • Mixtures over 50% single hydroxide use that code
  • Consult explanatory notes for edge cases
  • 2025 updates emphasize precise declarations

HS Code for Hydroxides in E-Commerce Shipments 2025

**E-commerce demands exact HS codes for hydroxides** amid rising chemical volumes.

  • Platforms require 6-10 digit accuracy
  • 2025 changes boost automated checks
  • Non-compliance risks delays or fines
  • LSI: chemical classification, customs clearance

FAQ: Common Questions on HS Code for Hydroxides

Answers to top People Also Ask queries on hydroxide classification.

What is the HS code for sodium hydroxide?

Sodium hydroxide solid is 2815.11; aqueous solution is 2815.12 under Chapter 28.

What is the HS code for aluminum hydroxide?

Aluminum hydroxide is classified as 2818.30 in the HS nomenclature.

How do 2025 HS code changes affect hydroxide shipments?

Updates like GCC 12-digit codes and EU CN refinements impact tariff compliance for hydroxide imports.

What is the HS code for calcium hydroxide?

Calcium hydroxide (slaked lime) uses 2825.90.

Are there special rules for magnesium hydroxide HS code?

Magnesium hydroxide (2816.10) needs hazardous declarations if shipped in bulk.

How often do HS codes for hydroxides update?

WCO revises every 5 years; 2025 features regional changes before 2027 overhaul.

What HS code for potassium hydroxide?

Potassium hydroxide is 2815.20 regardless of form.

How to classify hydroxide mixtures?

Classify by the principal hydroxide per WCO Chapter 28 guidelines.

Where to verify 2025 HS codes for hydroxides?

Use WCO HS database or national portals like USITC and EU TARIC.

Resources for HS Code Compliance

2025 case study: Shipper saved 12% duties on NaOH imports using correct 2815.11 with GCC extensions.

For expert help with HS code for hydroxides, Book a Demo. Contact: HKG: +852 24671689 | CHN: +86 4008751689 | USA: +1 337 361 2833 | Email: enquiry@freightamigo.com.

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