🧪 Metal Degreasing & Anti-Rust Agent

🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 1. Product Definition: What is a "Metal Degreasing Anti-Rust Agent"?

A Metal Degreasing Anti-Rust Agent is a specialized industrial chemical formulation designed for two primary purposes:
1. Degreasing: Removing oils, greases,切削液 (cutting fluids), and dirt from metal surfaces.
2. Anti-Rust: Providing temporary or long-term corrosion protection to the metal surface after cleaning.

In international trade, this product is typically classified based on its primary function and chemical composition. It is generally considered a surface preparation agent or a chemical mixture.

⚠️ Key Classification Distinction:
- If it is primarily a cleaning detergent with added corrosion inhibitors → Often classified under Chapter 34 (Soaps, Surface-Active Agents, Washing Preparations) or Chapter 38 (Miscellaneous Chemical Products).
- If it is primarily a chemical treatment/mixture with specific organic/inorganic components → Classified under Chapter 38.
- Crucial Note: For US Customs purposes, most commercial metal degreasers with anti-rust properties are classified under HTS 3824.99 (Miscellaneous chemical products) or 3402.90 (Surface-active agents), depending on the active ingredient ratio and primary use.

📦 2. HS Code Classification Details (2026 Tariff Schedule)

Based on the provided <DATA> for US Customs (HTS), here are the relevant codes for Metal Degreasing Anti-Rust Agents:

🔍 Important Clarification:
- 3402.90.10.00: Best for aqueous-based or surfactant-based degreasers where cleaning is the primary function.
- 3824.99.49.00: Suitable for hydrocarbon-based mixtures (e.g., petroleum distillates) used for degreasing and light rust prevention.
- 3824.99.55.00: Specifically for formulations containing halogenated hydrocarbons (e.g., trichloroethylene derivatives, though many are restricted).
- 3814.00.50.xx: For solvent-heavy degreasers that also function as paint or varnish removers.

💰 3. 2026 US Tariff Rate Detailed Analysis (China Origin)

✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (and subsequent imports)

All the following HS Codes are subject to Section 301 Tariffs and IEEPA Tariffs.

🎯 1. 3402.90.10.00 —— Metal Degreasing Agent (Surfactant-based)

📌 Explanation:
- This code is common for water-based or emulsion degreasers.
- The total duty of 38.8% is high. Importers must ensure the product is clearly described as a "cleaning preparation" with surfactants, not a simple solvent.

🎯 2. 3824.99.49.00 —— Chemical Mixture (Hydrocarbon-based)

📌 Explanation:
- Used for petroleum-based degreasers.
- Higher base tariff than 3402 but still subject to significant附加税 (additional tariffs).

🎯 3. 3824.99.55.00 —— Halogenated Hydrocarbon Mixture

📌 Explanation:
- For products containing halogenated solvents (e.g., dichloromethane, trichloroethylene).
- ⚠️ Regulatory Warning: Halogenated solvents may face additional environmental restrictions (EPA) in the US. Ensure compliance with Toxic Substances Control Act (TSCA).

🎯 4. 3814.00.50.10 & 3814.00.50.90 —— Organic Composite Solvents / Paint Removers

📌 Explanation:
- Use these codes if the product is primarily a solvent or paint remover that also has degreasing properties.
- If the primary use is cleaning metal, but it contains high levels of solvents, this classification may apply.

🛠️ 4. Customs Clearance Practical Advice (Step-by-Step)

✅ 1. Required Documentation Checklist

✅ 2. Declaration Best Practices

🔥 “Be Precise, Be Transparent, Avoid Misclassification!”

📌 Key Tip:
- Clearly state the primary use (Degreasing vs. Paint Removal) in the commercial invoice.
- Provide the chemical composition (e.g., "Contains 30% Hydrocarbons, 10% Surfactants, 60% Water") to justify the HS Code.

✅ 3. Special Considerations

🌍 5. Global Market Comparison (2026)

📌 Conclusion:
- The USA imposes the highest tariffs (38.7%–41.5%) due to Section 301 and IEEPA.
- EU and Japan have lower tariffs but stricter chemical registration requirements (REACH, CSCL).

📌 6. Common Mistakes & Pitfalls

❌ Mistake 1: Declaring as "Detergent" without specifying "Industrial Chemical Mixture"
👉 Consequence: Customs may reclassify to 3824 with higher duties or delay clearance.

❌ Mistake 2: Omitting Halogenated Compound Content
👉 Consequence: If 3824.99.55.00 is used but halogen content is not declared, customs may assess penalties.

❌ Mistake 3: Using "Paint Remover" for a pure Degreaser
👉 Consequence: Incorrect HS Code (3814 instead of 3402 or 3824), leading to tariff discrepancies.

❌ Mistake 4: Failing to provide SDS/MSDS
👉 Consequence: Customs hold, fines, or rejection of entry.

✅ Correct Approach:

"Industrial Metal Degreasing Agent, Water-Based, Contains Surfactants and Corrosion Inhibitors, for Pre-Painting Surface Preparation, HS Code: 3402.90.10.00"

🎯 7. Final Recommendations

🎯 Remember These Key Points:

🔹 Tariff Rate: Expect 38.7% – 41.5% for US imports from China.
🔹 Documentation: SDS, TDS, and Formula Disclosure are mandatory.
🔹 Compliance: Ensure TSCA compliance for all ingredients.
🔹 Classification: Choose 3402 for surfactant-based cleaners, 3824 for hydrocarbon/halogenated mixtures.

📣 Immediate Action:

📞 Contact a licensed US customs broker to verify the HS Code based on your specific formula.
📄 Prepare SDS and TDS in GHS format.
📦 Ensure "Made in China" labeling is compliant.

✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Counts!