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含hcfc的hfc混合制冷剂

CN → US
HS Code Tariff Rate Origin Destination Doc
3824995500 38.7% CN US Official Doc
2903710100 38.7% CN US Official Doc
2903750100 38.7% CN US Official Doc
3824995000 41.5% CN US Official Doc
3824995000 41.5% CN US Official Doc

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🧪 HFC/HCFC Blend Refrigerants (Halogenated Hydrocarbon Mixtures)

Also known as: Mixed Refrigerants, R-400/R-500 Series Blends


🌐 HS Code Classification & Customs Clearance Guide | 2024-2025 Latest Tariff Analysis | Professional Customs Strategy

📌 I. Product Definition: What Exactly Is an "HFC/HCFC Blend"?

HFC/HCFC blend refrigerants are complex chemical mixtures used primarily in air conditioning and refrigeration systems. Unlike pure substances (like R-134a or R-410A), these blends consist of two or more different halogenated hydrocarbons mixed together.

In international trade, the critical distinction lies in chemical structure vs. physical mixture: 1. Chemical Derivatives (Pure/Substance Class): If the mixture is chemically defined or behaves as a single halogenated derivative, it may fall under Chapter 29. 2. Physical Mixtures (Preparations Class): If it is a simple physical blend of different halogenated hydrocarbons without a specific new chemical structure, it falls under Chapter 38.

⚠️ Key Classification Logic:
- If the product is a single chemical entity (e.g., a specific fluorinated alkane with multiple halogens) → Chapter 29 (Specific Halogenated Derivatives).
- If the product is a mixture/preparation of different halogenated hydrocarbons (e.g., R-407C, R-417B) → Chapter 38 (Miscellaneous Chemical Products).


📦 II. HS Code Classification Details (2024/2025 Latest Tariff Authority Mapping)

Based on the provided data, here are the 5 specific HS Codes and their corresponding rationales for HFC/HCFC blends:

HS Code Product Description & Rationale Tax Rate (Total) Tax Breakdown
2903.71.01.00 Halogenated derivatives of acyclic hydrocarbons containing 2+ different halogens.
Rationale: Classifies blends that are chemically treated as specific halogenated derivatives with multiple halogen types (e.g., Cl + F).
38.7% Base: 3.7%
Section 301: 25.0%
Section 122: 10.0%
2903.75.01.00 Halogenated derivatives of hydrocarbons (consistent with HCFC family).
Rationale: For blends where the chemical nature aligns closely with HCFC (Hydrochlorofluorocarbons) derivatives, treating them as a specific chemical family.
38.7% Base: 3.7%
Section 301: 25.0%
Section 122: 10.0%
3824.99.55.00 Frozen/Refrigerant Mixtures of HCFCs (Halogenated Hydrocarbon Mixtures).
Rationale: Classifies physical mixtures of HCFCs used for freezing/refrigeration, meeting material requirements for "miscellaneous chemical preparations."
38.7% Base: 3.7%
Section 301: 25.0%
Section 122: 10.0%
3824.99.50.00 Halogenated Hydrocarbon Mixtures (General Chemical Product Attribute).
Rationale: Broad classification for refrigerant blends viewed as "miscellaneous chemical products" rather than specific organic derivatives.
41.5% Base: 6.5%
Section 301: 25.0%
Section 122: 10.0%
3824.99.50.00 HCFC Refrigerant Compounds (High Chlorine Characteristic).
Rationale: Specifically targets HCFC-based blends with strong chlorination characteristics, falling under general halogenated chemical preparations.
41.5% Base: 6.5%
Section 301: 25.0%
Section 122: 10.0%

🔍 Critical Distinction:
- 38.7% Total Tax applies to codes 2903.71.01.00, 2903.75.01.00, and 3824.99.55.00. These typically have lower base tariffs (3.7%) because they are either specific derivatives or specific HCFC mixtures.
- 41.5% Total Tax applies to code 3824.99.50.00. This has a higher base tariff (6.5%) because it is a broader "miscellaneous chemical" classification.
- Both tiers suffer the same ADDITIONAL taxes: 25% (Section 301) + 10% (Section 122).


💰 III. 2024/2025 Tariff Rate Detailed Explanation (含附加税、政策附加)

Applicable Country: United States (US)
Origin: China (CN)
Effective Time: Ongoing (Subject to current trade policies)

🎯 1. Lower Tier: 2903.71.01.00, 2903.75.01.00, 3824.99.55.00

Item Content
Base Tariff 3.7% (ad valorem)
Section 301 Tariff +25.0% (US Trade Act Section 301)
Section 122 Tariff +10.0% (Specific enforcement clause)
Total Effective Rate 38.7%
Calculation Method CIF Value × 38.7%
De Minimis Exemption? NO (deny_de_minimis)
Legal Basis Path USITC:2903.71.01.00FOOTNOTE:301 + FOOTNOTE:122

📌 Explanation:
- The 3.7% base reflects the duty for specific halogenated hydrocarbons or specific HCFC mixtures.
- The 25% Section 301 is the standard US tariff on Chinese goods in this chemical category.
- The 10% Section 122 is an additional enforcement tariff.
- Total 38.7% is still extremely high but 2.8% lower than the other category.

🎯 2. Higher Tier: 3824.99.50.00

Item Content
Base Tariff 6.5% (ad valorem)
Section 301 Tariff +25.0% (US Trade Act Section 301)
Section 122 Tariff +10.0% (Specific enforcement clause)
Total Effective Rate 41.5%
Calculation Method CIF Value × 41.5%
De Minimis Exemption? NO (deny_de_minimis)
Legal Basis Path USITC:3824.99.50.00FOOTNOTE:301 + FOOTNOTE:122

📌 Explanation:
- The 6.5% base applies to broader "miscellaneous chemical products."
- Same additional taxes apply.
- Total 41.5% is the highest duty burden for these refrigerants.


🛠️ IV. Customs Clearance Practical Advice (Battle-Proven Pitfall Avoidance)

✅ 1. Document Checklist (Non-Negotiable)

Document Required? Purpose
Technical Data Sheet (TDS) ✔️ Must show exact chemical composition (e.g., % R-32, % R-125, % R-134a).
Safety Data Sheet (SDS) ✔️ To prove it is a "refrigerant" and not a hazardous waste or explosive.
Statement of Composition ✔️ Critical for distinguishing between Chapter 29 (pure derivative) vs. Chapter 38 (mixture).
Commercial Invoice ✔️ Must clearly state "HFC/HCFC Blend Refrigerant" + HS Code.
Certificate of Origin ✔️ To confirm Chinese origin (triggers 301/122 tariffs).
FPA (Phasedown Compliance) ✔️ Proof that the HCFC content complies with US EPA SNAP (Significant New Alternatives Policy) rules.

✅ 2. Declaration Strategy (Key Mantra)

🔥 “Chemical Structure Dictates Chapter, Mixture Defines Code!”

Scenario Correct Classification Risk if Wrong
Blend is a single defined chemical entity (e.g., complex halogenated alkane) 2903.71.01.00 / 2903.75.01.00 If misdeclared as 38xx, you overpay tax. If misdeclared as pure R-134a, you face fraud penalties.
Physical mixture of R-32/R-125/R-134a (e.g., R-410A) 3824.99.55.00 (Preferred for 38.7%) If declared as 3824.99.50.00, you pay 41.5% (3% more total).
HCFC-heavy blend (e.g., R-404A, R-507) 3824.99.55.00 or 2903.75.01.00 Must provide EPA SNAP approval to avoid seizure by CBP/EPA.

✅ 3. Critical Warnings

  • ❌ Do NOT split shipments to avoid Section 301 tariffs. CBP uses anti-dumping/evasion algorithms. If detected, penalties can be 5x the duty value.
  • ❌ Do NOT use "Freon" or generic terms. Use precise chemical names (e.g., "Mixture of Difluoromethane and Pentafluoroethane").
  • ⚠️ EPA Compliance is Mandatory: Even if CBP clears it, EPA can block entry if the blend is not on the SNAP Approved List or if it contains banned HCFCs above threshold limits.

🌍 V. Global Market Comparison (2024-2025)

Market Recommended HS Code Base Duty Section 301/122? Total Duty Notes
🇺🇸 USA 3824.99.55.00 or 2903.75.01.00 3.7% ✅ Yes (+35%) 38.7% High barrier. EPA SNAP list critical.
🇨🇳 China 2903.75.01.00 6.5% ❌ No 6.5% Import duty for raw materials.
🇪🇺 EU 2903.79.90 6.5% ❌ No 6.5% Subject to F-Gas Regulation quotas.
🇲🇽 Mexico 2903.79.90 0% (USMCA) ❌ No 0% If produced in US/Mexico/Canada.

📌 Conclusion:
- USA is the most expensive market due to Section 301 + 122 tariffs.
- EPA SNAP approval is as important as HS Code classification.
- 38.7% is the optimal duty rate; 41.5% should be avoided by proper chemical documentation.


📌 VI. Common Errors & Pitfalls (Blood Lessons)

Error 1: Declaring HFC/HCFC blends as "Pure R-134a" to avoid high duties.
👉 Consequence: Fraud charge, seizure, and fines. CBP lab tests will reveal the blend.

Error 2: Using 3824.99.50.00 when 3824.99.55.00 is applicable.
👉 Consequence: Paying 41.5% instead of 38.7% unnecessarily. (2.8% of CIF value is a huge loss on large volumes).

Error 3: Failing to provide EPA SNAP certification.
👉 Consequence: Entry refused by EPA, even if CBP clears it. Goods destroyed or returned.

Correct Declaration Example:

"HFC/HCFC Blend Refrigerant, Model XYZ, Composed of 50% R-32, 25% R-125, 25% R-134a, For Air Conditioning Use, EPA SNAP Approved, HS Code: 3824.99.55.00"


🎯 VII. Conclusion: Precision Classification, Maximum Savings!

🎯 Remember the Mantra:

🔹 "Pure Derivative = 29xx (3.7% Base)"
🔹 "Physical Mixture = 38xx (3.7% Base for HCFC Blends)"
🔹 "Avoid 3824.99.50 (6.5% Base) with Proper Docs!"
🔹 "38.7% vs 41.5%: The 2.8% Difference is Pure Profit!"


📌 Pro Tip:
If your refrigerant is produced in Vietnam, Thailand, or India, check for USMCA/FTA benefits or Section 301 exclusions (if any apply to specific chemical HS codes). Always apply for CBP Advance Rulings before shipping to lock in the 38.7% rate.


📣 Immediate Action:

📞 Contact your customs broker with the Exact Chemical Composition
🚀 Verify EPA SNAP Approval Status
💼 Secure the 38.7% Rate, Avoid the 41.5% Trap!


Professional Customs Clearance Starts with Accurate Classification!
💼 Every Percent Saved is Pure Profit in the Chemical Trade!

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.