汽车空调制冷剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2903451000 | 13.7% | CN | US | Official Doc |
| 2903441010 | 13.7% | CN | US | Official Doc |
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AI Analysis
❄️ Automotive AC Refrigerants (HFC-134a & HFC-125)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Refrigerants"?
Automotive air conditioning refrigerants are chemical compounds used in vehicle thermal management systems. In international trade, they are strictly classified as Halogenated Derivatives of Hydrocarbons, specifically Saturated Fluorinated Derivatives of Acyclic Hydrocarbons.
Key Distinction: Structural Isomers Matter!
Even if two products have the same chemical formula (e.g., C₂H₂F₄), their structural arrangement (isomers) determines the HS Code. This is not a minor detail; it dictates whether you pay 3.7% or 0% duty.
⚠️ Critical Identification Point:
- HFC-134a (1,1,1,2-Tetrafluoroethane): The dominant refrigerant for older/current automotive AC systems. → HS 2903.45.10.00
- HFC-125 (Pentafluoroethane): Often used in blends (like R-404A/R-507) or specific industrial applications. → HS 2903.44.10.10
- HFC-134 (1,1,2,2-Tetrafluoroethane): Rare as a standalone auto refrigerant but structurally distinct from 134a. → Grouped with HFC-134a under HS 2903.45.10.00
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Chemical Identity | Typical Application | Duty Rate |
|---|---|---|---|---|
2903.45.10.00 |
Saturated fluorinated derivatives of acyclic hydrocarbons: 1,1,1,2-Tetrafluoroethane (HFC-134a) and 1,1,2,2-tetrafluoroethane (HFC-134) | C₂H₂F₄ (Isomer: 1,1,1,2-) | Automotive AC, household fridges, foam blowing | 3.7% |
2903.44.10.10 |
Saturated fluorinated derivatives of acyclic hydrocarbons: Pentafluoroethane (HFC-125) | C₂HF₅ | Industrial refrigeration, fire extinguishers, blends (not pure auto AC) | 0.0% |
🔍 Important Note:
- HFC-134a is the standard for automotive A/C. If your product is labeled "R-134a" or "Freon 134a," it MUST go to2903.45.10.00.
- HFC-125 is not typically used as a primary refrigerant in modern automotive AC (which is moving to R-1234yf or CO₂). It is more common in industrial blends. If you are importing pure HFC-125, use2903.44.10.10.
- Do NOT mix these HS Codes! Misclassifying HFC-134a as HFC-125 (or vice versa) can lead to customs audits, penalties, or duty underpayment/overpayment issues.
💰 III. 2026 Latest Tariff Rate Detailed Breakdown
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current tariffs apply unless subject to Section 301 exemptions (which generally do not apply to these chemical refrigerants in the same way as electronics).
🎯 1. 2903.45.10.00 —— HFC-134a & HFC-134 (Automotive AC Standard)
| Item | Detail |
|---|---|
| Base Tariff | 3.7% (Ad Valorem) |
| Section 301 Add-on | 0.0% (Note: Many chemical intermediates may be exempt, but verify specific batch origin. Based on provided data: 0% added) |
| Total Effective Duty | 3.7% |
| Tax Calculation | CIF Value × 3.7% |
| De Minimis Exemption | ❌ Not Applicable (Chemicals are generally excluded from $800 de minimis relief for commercial shipments) |
| Legal Basis | HTSUS 2903.45.10.00 |
📌 Explanation:
- This is the standard duty for HFC-134a.
- While 3.7% seems low, volume matters. For bulk refrigerant shipments (drums/cylinders), this adds up.
- No additional punitive tariffs are listed in the provided data for this specific code, making it a relatively low-cost import compared to electronics.
🎯 2. 2903.44.10.10 —— HFC-125 (Industrial/Blend Component)
| Item | Detail |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Add-on | 0.0% |
| Total Effective Duty | 0.0% |
| Tax Calculation | $0 Duty |
| De Minimis Exemption | ❌ Not Applicable (Commercial chemical shipment) |
| Legal Basis | HTSUS 2903.44.10.10 |
📌 Explanation:
- HFC-125 benefits from a 0% duty rate.
- This makes it highly competitive for industrial applications or as a component in blended refrigerants (like R-404A).
- Strategic Advantage: If you are formulating blends, using HFC-125 can reduce landed cost.
🛠️ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
✅ 1. Required Documentation Checklist
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Safety Data Sheet (SDS) | YES | Must be Section 15 compliant, detailing hazards, composition (isomer structure!), and first aid. |
| ✅ Commercial Invoice | YES | Must specify exact chemical name (e.g., "1,1,1,2-Tetrafluoroethane") NOT just "Refrigerant" or "R-134a". |
| ✅ Packing List | YES | Net/Gross weight, number of cylinders/drums. |
| ✅ Certificate of Analysis (COA) | Recommended | Purity level (e.g., 99.9%). |
| ✅ Import Security Filing (ISF) | YES | Filed 24 hours before loading if shipped by sea. |
| ✅ DOT/PHMSA Compliance | YES | Refrigerants are hazardous materials (HazMat). Must comply with DOT regulations for transport. |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Exact Name Wins, Isomer Matters, HazMat Compliant!"
| Situation | Correct Declaration | Wrong Practice |
|---|---|---|
| Pure HFC-134a | 1,1,1,2-Tetrafluoroethane (HS 2903.45.10.00) |
"R-134a Refrigerant" (Too vague → Customs may assign default higher rate or hold for inspection) |
| Pure HFC-125 | Pentafluoroethane (HS 2903.44.10.10) |
"Refrigerant Gas" (Misclassification risk) |
| Blended Refrigerant | Not in scope of this data | Blends often have different HS codes (e.g., 2903.49). Do not use 134a or 125 codes for blends. |
| Used/Recycled Refrigerant | Different HS Code | Recycled refrigerants may be classified under waste/scrap codes. Ensure new vs. used is clear. |
✅ 3. Special Handling Notes
| Scenario | Recommendation |
|---|---|
| OEM Supply Chain | If supplying directly to Ford, GM, Toyota, ensure SDS matches their required chemical specification. |
| Aftermarket Refills | Smaller cylinders (e.g., 14oz) may face stricter scrutiny for HazMat labeling. Ensure DOT-4BA or DOT-4L specs are met. |
| Environmental Compliance | EPA Section 608 Certification is required for technicians handling refrigerants in the US. Importers must ensure end-users are compliant. |
| HFC-125 in Blends | If importing a blend (e.g., R-404A), do NOT declare as HFC-125. Blends have their own classification. Only pure chemicals fit the codes above. |
🌍 V. Global Market Customs Comparison (2026)
| Country/Region | Recommended HS Code | Duty Rate | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2903.45.10.00 (134a) |
3.7% | EPA Safer Choice, DOT HazMat | Zero duty for HFC-125 (2903.44.10.10) |
| 🇨🇳 China | 2903.45 |
0%~5% | CCC (if applicable), GB Standards | HFC-134a is widely produced domestically |
| 🇪🇺 EU | 2903.45 |
0% (if under F-Gas regulation compliant) | REACH, F-Gas Certification | Strict F-Gas limits on leakage and handling |
| 🇯🇵 Japan | 2903.45 |
0%~5% | JIS Standards | High purity required for automotive |
| 🇲🇽 Mexico | 2903.45 |
0%~5% | NOM Standards | USMCA origin may apply for zero duty |
📌 Conclusion:
- USA: Low duty for HFC-134a (3.7%), Zero duty for HFC-125.
- EU/Mexico: Often have lower or zero duties under FTAs, but environmental regulations (F-Gas) are the biggest barrier, not tariffs.
- China: Domestic production is strong; imports are fewer.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "R-134a" without the chemical name
👉 Consequence: Customs may reject the entry or assign a generic chemical code with higher duties.
👉 Fix: Use IUPAC name: "1,1,1,2-Tetrafluoroethane".
❌ Error 2: Misidentifying HFC-125 vs. HFC-134a
👉 Consequence: Paying 3.7% when you should pay 0% (if pure HFC-125), or vice versa.
👉 Fix: Check the molecular formula:
- HFC-125 = C₂HF₅
- HFC-134a = C₂H₂F₄
❌ Error 3: Ignoring HazMat Regulations
👉 Consequence: Shipment held at port, fines, or rejection. Refrigerants are pressurized gases.
👉 Fix: Ensure packaging meets DOT 4BA/4L standards.
❌ Error 4: Blended Refrigerants under Pure Codes
👉 Consequence: Misclassification. Blends are mixtures, not pure compounds.
👉 Fix: Use HS Code for mixtures (e.g., 2903.49.80.00) if applicable, or consult a specialist.
✅ Correct Declaration Example:
"1,1,1,2-Tetrafluoroethane (HFC-134a), 99.9% Pure, Automotive Refrigerant, Non-Flammable, DOT-Spec Cylinders, Net Weight 10kg"
🎯 VII. Conclusion: Professional Declaration, Cost Optimization!
🎯 Remember the Mantras:
🔹 "Isomer is King: 134a (3.7%), 125 (0%)"
🔹 "Exact Chemical Name > Trade Name (R-134a)"
🔹 "HazMat Compliance is Non-Negotiable"
📌 Pro Tip:
If you are importing blended refrigerants (like R-404A, R-507), these codes do not apply. You must use the HS Code for halogenated hydrocarbon mixtures.
For automotive A/C, HFC-134a is still prevalent, but R-1234yf is the new standard for new vehicles (2024+). R-1234yf has a different HS Code (2903.49.80.00 or similar) and higher duty. Ensure you are not confusing the two!
📣 Immediate Action:
📞 Verify Isomer Structure on your Supplier's COA.
📄 Request SDS with exact IUPAC names.
🚀 File ISF 24h Before Loading to avoid demurrage.
✨ Precision in Chemistry, Precision in Customs!
💼 Your refrigerant shipment should be cool, not costly!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.