In international trade, the HS code (Harmonized System Code) for aluminum profiles directly impacts customs clearance efficiency and cost accounting. This article explains the HS classification rules and code selection strategies for aluminum profiles to help you avoid compliance risks.
Core HS Code Classification
7604.21/7604.29:
Non-alloy aluminum profiles (7604.21): These apply to pure aluminum extruded profiles, which must contain aluminum content ≥99.3% and not be coated or surface treated. (For example, anodized aluminum profiles should be classified under 7604.29.)
Alloy aluminum profiles (7604.29): These include 6063-T5 aluminum profiles or 6061-T6 aluminum profiles that contain elements like copper and magnesium, and are commonly used in building curtain walls and industrial frames.
7608.10/7608.20:
Aluminum tube/hollow profile (7608.10): Includes solar frame aluminum profiles and automobile radiator tubes, and requires the declaration of outer diameter and wall thickness parameters.
Aluminum structure (7608.20): Includes prefabricated door and window frame profiles or mechanical guide rails, and requires submission of cross-sectional drawings and usage instructions.
Declaration Points and Common Misunderstandings
Surface Treatment Determination: Spray-coated and electrophoretic-coated profiles must declare additional customs codes (e.g., 7604.29.0090 for spray-coated aluminum profiles).
Alloy Element Certification: A material report (including Cu/Mg/Si content) is required to avoid tariff disputes caused by incorrect classification.
Rules of Origin: When exporting to FTA countries, aluminum profile processing technology certification (e.g., extrusion ratio ≥10:1) can provide zero-tariff preferences.
Tariff Optimization Strategy
Tariff Classification Advance Ruling: Apply for an HS Code Advance Ruling from customs to lock in the declaration standard, with a validity period of 3 years.
Processing Trade Registration: Use bonded aluminum ingots to produce profiles, which are exempt from import value-added tax.
RCEP/FTA Application: Aluminum profiles that comply with regional cumulation rules can reduce tariffs by 5-15% when exported to ASEAN countries.
