frozen refrigerant mixture
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824995500 | 38.7% | CN | US | Official Doc |
| 3824995000 | 41.5% | CN | US | Official Doc |
| 2903799070 | 38.7% | CN | US | Official Doc |
| 2903490000 | 13.7% | CN | US | Official Doc |
| 2853909090 | 37.8% | CN | US | Official Doc |
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❄️ Frozen Refrigerant Mixture (制冷剂混合物)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 Part 1: Product Definition & Classification: Do You Really Know “Refrigerant Mixtures”?
Frozen refrigerant mixtures are complex chemical substances used primarily in HVAC (Heating, Ventilation, and Air Conditioning) systems and industrial cooling. In international trade, they are classified based on their chemical structure (halogenated vs. inorganic) and formulation. The core distinction lies in whether they are organic halogenated hydrocarbons or inorganic compounds.
Halogenated Hydrocarbon Mixtures (Organic): Contain carbon, hydrogen, and halogens (Fluorine, Chlorine, Bromine, Iodine). These fall under Chapters 29 or 38. Inorganic Compounds (Inorganic): Do not contain carbon-halogen bonds in the organic sense. These fall under Chapter 28.
⚠️ Critical Distinction Point:
- If the mixture consists mainly of halo-hydrocarbons (like HFCs, HCFCs, HCs) → It is generally classified under Chapter 29 (Organic Chemicals) or Chapter 38 (Miscellaneous Chemical Products).
- If the mixture is deemed inorganic (e.g., ammonia-based or specific inorganic salts, though rare for "refrigerant mixtures" in this context unless specified) → It falls under Chapter 28 (Inorganic Chemicals).
- Note: Most common "refrigerant mixtures" (like R410A, R404A, R407C) are organic halogenated compounds. However, customs may scrutinize the exact chemical makeup.
📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the five potential HS Codes and their logical justification:
| HS Code | Product Description | Logical Justification (Why this code?) |
|---|---|---|
3824.99.55.00 |
Refrigerant Mixtures (Chemical Preparations) | Classified under Chapter 38 (Miscellaneous Chemical Products). Specifically, it is viewed as a "Chemical Preparation" or mixture that does not fit precisely into the specific organic chemical subheadings of Chapter 29. The summary states it is a "halogenated hydrocarbon mixture" but falls under chemical preparations. |
3824.99.50.00 |
Refrigerant Mixtures (Chemical Preparations) | Also classified under Chapter 38. This is a broader or alternative subheading for "Other Chemical Products and Preparations." It highlights the presence of halogenated hydrocarbons but categorizes the mixture itself as a chemical preparation rather than a pure substance. |
2903.79.90.70 |
Halogenated Derivatives of Hydrocarbons (Other) | Classified under Chapter 29 (Organic Chemicals). Specifically 2903 (Halogenated Hydrocarbons). This code is for "Other" halogenated derivatives of acyclic hydrocarbons. It applies if the mixture is seen as a combination of specific organic halogenated compounds (like HFCs) that don't fit more specific 10-digit slots. |
2903.49.00.00 |
Halogenated Derivatives of Hydrocarbons (Other) | Classified under Chapter 29, specifically 2903.49 (Other halogenated derivatives of hydrocarbons). This is a "catch-all" for halogenated hydrocarbons containing fluorine or chlorine. It is used when the specific mixture components are organic and halogenated but don't meet stricter criteria. |
2853.90.90.90 |
Inorganic Compounds (Other) | Classified under Chapter 28 (Inorganic Chemicals). This is the least likely for standard organic refrigerants but is included in the data if the mixture is deemed inorganic (e.g., certain ammonia blends or inorganic salt brines, though "refrigerant mixture" usually implies organic). The summary explicitly states it belongs to the category of "inorganic compounds." |
🔍 Key Insight:
- Ch 38 Codes (3824.99.55/50) treat the refrigerant as a prepared chemical mixture.
- Ch 29 Codes (2903.79/49) treat the refrigerant as a blend of organic halogenated chemicals.
- Ch 28 Code (2853.90) is an outlier, applied only if the substance is chemically inorganic.
- Customs Risk: Misclassifying an organic refrigerant as inorganic (or vice versa) can lead to significant duty differences and legal penalties.
💰 Part 3: 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: USA
✅ Country of Origin: China (CN)
✅ Effective Date: 2025+ (Current tariff structure)
🎯 1. 3824.99.55.00 & 3824.99.50.00 – Chemical Preparations (Chapter 38)
| Item | Content |
|---|---|
| Base Tariff | 3.7% (for .55.00) / 6.5% (for .50.00) |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 38.7% (.55.00) / 41.5% (.50.00) |
| Tax Calculation | CIF Value × 38.7% / 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis | Section 301: 9903.01.25 → Section 122: 9903.01.24 → USITC: 3824.99.55.00 |
📌 Explanation:
- Base Tariff: Chapter 38 base rates vary slightly between subheadings (.55 vs .50).
- Section 301: Standard 25% additional duty on Chinese goods under trade war measures.
- Section 122: Additional 10% duty often applied to specific chemical imports or national security-related goods.
- Total: These are high-duty classifications due to the cumulative effect of base + Section 301 + Section 122.
🎯 2. 2903.79.90.70 – Halogenated Hydrocarbons (Organic, Other)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis | Section 301: 9903.01.25 → Section 122: 9903.01.24 → USITC: 2903.79.90.70 |
📌 Explanation:
- Chapter 29 often has lower base rates for specific organic chemicals, but 3.7% is still subject to the full stack of punitive tariffs.
- This classification is common for HFC/HFO blends.
🎯 3. 2903.49.00.00 – Halogenated Hydrocarbons (Fluorine/Chlorine, Other)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| Section 301 Tariff | 0.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 13.7% |
| Tax Calculation | CIF Value × 13.7% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis | Section 122: 9903.01.24 → USITC: 2903.49.00.00 |
📌 CRITICAL OPPORTUNITY:
- This is the lowest tariff option (13.7%).
- Why? It appears that Section 301 (25%) does NOT apply to this specific subheading (2903.49.00.00) under the current data, possibly due to specific exclusions or different regulatory treatment for certain fluorinated/chlorinated hydrocarbons.
- Only Section 122 (10%) is applied on top of the base 3.7%.
- Action: If your product composition allows for classification under2903.49.00.00, this is the most cost-effective choice.
🎯 4. 2853.90.90.90 – Inorganic Compounds (Other)
| Item | Content |
|---|---|
| Base Tariff | 2.8% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 37.8% |
| Tax Calculation | CIF Value × 37.8% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis | Section 301: 9903.01.25 → Section 122: 9903.01.24 → USITC: 2853.90.90.90 |
📌 Explanation:
- This is the inorganic classification.
- It is highly unlikely for standard refrigerant mixtures (which are organic).
- Risk: If you use this code for an organic refrigerant, it is misclassification and subject to heavy penalties. Only use if the product is truly inorganic (e.g., Ammonia/Water mixture, though Ammonia usually has its own code).
🛠️ Part 4: Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance)
✅ 1. Required Documentation Checklist (Must-Have)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Safety Data Sheet (SDS) | ✔️ | Crucial for chemical classification. Must list all components and percentages. |
| ✅ Chemical Composition Analysis | ✔️ | Detailed breakdown of halogenated hydrocarbons vs. inorganic compounds. |
| ✅ Product Label & Photos | ✔️ | Clear view of the "Refrigerant Mixture" label, including hazard symbols. |
| ✅ Commercial Invoice | ✔️ | Must state "Frozen Refrigerant Mixture" and HS Code. |
| ✅ Packing List | ✔️ | Weight and volume details. |
| ✅ Certificate of Origin | ✔️ | To prove Chinese origin (for Section 301/122 applicability). |
| ✅ DOT/UN Certification | ✔️ | Since it's "Frozen," it may be considered a compressed gas or refrigerant under DOT rules. Ensure proper packaging certification. |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 "Organic vs. Inorganic, 301 vs. 122, 2903 is the King!"
| Scenario | Correct HS Code | Tax Rate | Why? |
|---|---|---|---|
| Standard HFC/HFO Blend | 2903.49.00.00 |
13.7% | Lowest duty! Avoids Section 301. |
| Mixed Organic Prep | 3824.99.55.00 |
38.7% | Classified as chemical preparation. High duty. |
| Other Organic Halides | 2903.79.90.70 |
38.7% | Subject to full 301+122 stack. |
| Truly Inorganic | 2853.90.90.90 |
37.8% | Rare for refrigerants. High duty. |
📌 Strategic Advice:
- Prioritize2903.49.00.00if the chemical composition allows. The 25% Section 301 exemption makes it significantly cheaper.
- Do NOT force an organic refrigerant into2853.90.90.90to save on duties. Customs will check the SDS and penalize you for misclassification.
- Verify Chemical Structure: Ensure the mixture is primarily halogenated hydrocarbons (containing C-H-X bonds) to qualify for Chapter 29.
✅ 3. Special Handling for "Frozen" Status
| Condition | Handling Advice |
|---|---|
| Physical State | "Frozen" may imply solid state. Ensure the HS Code description matches (e.g., "Refrigerant" usually implies liquid/gas, but mixtures can be solid at low temps). Clarify in the declaration as "Solid/Liquid Refrigerant Mixture." |
| Packaging | Must be UN-rated packaging for hazardous materials (Class 2.2 or Class 9 if applicable). |
| Temperature Control | Some refrigerants may require temperature control during transit. Specify in shipping instructions. |
🌍 Part 5: Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Estimated Duty (CN Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2903.49.00.00 |
13.7% | DOT, EPA SNUR (if applicable) | Best rate if eligible. |
| 🇨🇳 China | 2903.49.00.00 |
~4-5% | No specific import license | Low duty, easy clearance. |
| 🇪🇺 EU | 2903.49.00 |
~0-5% | REACH Registration | REACH compliance is critical. |
| 🇯🇵 Japan | 2903.49.00 |
~0-5% | Fire Services Act | Check for specific fire safety codes. |
📌 Conclusion:
- The USA is the most complex due to Section 301 and Section 122 tariffs.
- Choosing the right HS Code is critical to save up to 25% in tariffs (comparing 38.7% vs 13.7%).
- EU and Japan are more lenient but require strict chemical compliance (REACH).
📌 Part 6: Common Errors & Pitfall Guide (Blood & Tears Lessons)
❌ Mistake 1: Using 2853.90.90.90 (Inorganic) for organic refrigerants.
👉 Consequence: Customs will reclassify to 2903 or 3824, charge 37.8-41.5%, plus penalties for misdeclaration.
❌ Mistake 2: Using 3824.99.55.00 without justification.
👉 Consequence: You pay 38.7% instead of 13.7%. Loss of 25% in savings!
❌ Mistake 3: Ignoring Section 122 Tariff.
👉 Consequence: Even 2903.49.00.00 has a 10% Section 122 duty. Failing to include this leads to underpayment and fines.
✅ Correct Practice:
"Refrigerant Mixture, Halogenated Hydrocarbon Blend (HFC/HFO), Solid/Liquid Form, Model XYZ, SDS Provided, HS Code 2903.49.00.00"
🎯 Part 7: Conclusion: Precision Classification, Maximize Savings!
🎯 Remember the Mantra:
🔹 "Check the Chemical Structure! Is it Organic? Is it Halogenated?"
🔹 "If Yes to Both, Fight for 2903.49.00.00 – The 13.7% Hero!"
🔹 "Avoid 3824 and 2903.79 – They Cost You 25% More (Section 301)."
🔹 "Never Lie about Inorganic Status – The Penalty is Steep!"
📌 Pro Tip:
- Request an Advance Ruling: Before shipping, submit the SDS and chemical analysis to US Customs and Border Protection (CBP) for an Advance Ruling on HS Code 2903.49.00.00. This legally binds them to the classification, protecting you from future disputes.
- Supplier Confirmation: Ensure your supplier confirms the exact chemical composition. If they claim "Organic Halogenated," you have a strong case for Chapter 29.
📣 Immediate Action:
📞 Consult a Customs Broker with chemical expertise.
📄 Gather SDS and Chemical Composition Reports.
🚀 Apply for Advance Ruling for HS Code 2903.49.00.00.
💰 Save up to 25% on duties!
✨ Professional clearance starts with precise classification!
💼 Every percent saved is pure profit!
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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.