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CN → US
HS编码 关税税率 原产国 目的国 文档
3813005000 38.7% CN US 官方文档
3813001000 35.0% CN US 官方文档
2804290055 38.7% CN US 官方文档

AI分析

🧯 Fire Extinguishing Propellant Gas – The Invisible Force Behind Safety


🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Breakdown | Professional Customs Strategy

📌 I. Product Definition & Classification: Do You Truly Understand "Propellant Gas for Fire Extinguishers"?

Fire Extinguishing Propellant Gas is a critical component in fire suppression systems. It serves as the pressurizing agent that expels the extinguishing agent from the cylinder upon activation. These gases are typically inert, non-reactive, and stored under high pressure in either liquid or gaseous form.

In international trade, classification depends on: - Chemical composition (e.g., nitrogen, CO₂, noble gases) - Form (liquid, gas, or mixture) - Purpose (specifically for fire extinguishers)

⚠️ Key Classification Criteria: - If the gas is a specialized fire extinguisher additive/mixture, it falls under HS 3813. - If it's an inert propellant gas (like N₂ or CO₂) used as a chemical filler, it may be classified under HS 3813.00.10.00 or HS 2804.29.00.55.


📦 II. HS Code Classification Details (2026 Official Tariff Reference)

HS Code Product Description Use Case Material Type
3813.00.50.00 Propellant gas specifically for fire extinguishers, no material conflict Fire extinguisher filling, specialized agents Chemical mixture / additive
3813.00.10.00 Inert gas or chemical propellant for fire extinguishers General-purpose propellant filling Inert gas / chemical filler
2804.29.00.55 Other non-metallic gases (e.g., nitrogen, noble gases) used as propellants Rare gas classification, generic propellant Non-metallic gas

🔍 Critical Note: - If the gas is formulated specifically for fire extinguishers, prioritize 3813 series. - If it's a generic inert gas repurposed as a propellant, 2804.29.00.55 may apply. - Misclassification risk: Declaring as "industrial gas" instead of "fire extinguisher propellant" can lead to penalties.


💰 III. 2026 Tariff Rate Breakdown (Including Additional Duties & Policy Add-ons)

Applicable Country: USA
Country of Origin: China (CN)
Effective Date: November 10, 2025 (including subsequent imports)

🎯 1. 3813.00.50.00 – Propellant Gas for Fire Extinguishers (Specialized)

Item Detail
Base Tariff 3.7%
Section 301 (USITC) Additional Duty +25.0%
122 Clause (China-specific) +10.0%
Total Tariff Rate 38.7%
Tax Calculation CIF Value × 38.7%
De Minimis Exemption ❌ Not Eligible
Legal Basis Path IEEPA:9903.01.25301:3813.00.50.00122 Clause

📌 Explanation: - 3.7% is the standard MFN rate for chemical preparations. - 25% is the Section 301 tariff on Chinese-origin goods. - 10% is the additional 122 Clause tariff targeting specific chemical products from China. - Total 38.7% is a very high effective duty, impacting profit margins significantly.


🎯 2. 3813.00.10.00 – Inert Gas Propellant for Fire Extinguishers

Item Detail
Base Tariff 0.0%
Section 301 (USITC) Additional Duty +25.0%
122 Clause (China-specific) +10.0%
Total Tariff Rate 35.0%
Tax Calculation CIF Value × 35.0%
De Minimis Exemption ❌ Not Eligible
Legal Basis Path IEEPA:9903.01.24301:3813.00.10.00122 Clause

📌 Note: - Even with a 0% base rate, the 35% total remains high due to additional duties. - This classification is often used for generic inert gases like nitrogen (N₂) or argon (Ar) used as propellants.


🎯 3. 2804.29.00.55 – Other Non-Metallic Gases (e.g., Nitrogen, Noble Gases)

Item Detail
Base Tariff 3.7%
Section 301 (USITC) Additional Duty +25.0%
122 Clause (China-specific) +10.0%
Total Tariff Rate 38.7%
Tax Calculation CIF Value × 38.7%
De Minimis Exemption ❌ Not Eligible
Legal Basis Path IEEPA:9903.01.252804.29.00.55122 Clause

📌 Caution: - This code is for rare or generic non-metallic gases not specifically formulated for fire extinguishers. - If the gas is clearly for fire suppression, this may be misclassification.


🛠️ IV. Customs Clearance Practical Tips (Avoiding Pitfalls)

✅ 1. Required Documentation Checklist

Document Must Provide Notes
Product Specification Sheet ✔️ Include gas type, pressure, purity, intended use
Safety Data Sheet (SDS) ✔️ Critical for hazardous gas declaration
Certificate of Origin (CO) ✔️ To determine eligibility for trade agreements
Commercial Invoice ✔️ Must specify "Propellant Gas for Fire Extinguishers"
Packing List ✔️ Clearly indicate cylinder type and gas volume
Technical Data Sheet ✔️ For verification of gas composition

✅ 2. Declaration Best Practices

🔥 "Name It Right, Classify It Right, Save Your Margin!"

Scenario Correct Declaration Incorrect Declaration
Gas specifically for fire extinguishers 3813.00.50.00 Declared as "Industrial Gas" → 25%+10% extra
Inert gas like N₂ used as propellant 3813.00.10.00 Declared as "Noble Gas" → 38.7%
Generic non-metallic gas 2804.29.00.55 Declared as "Fire Extinguisher Gas" → 38.7%
Cylinder + gas together Whole unit declaration Split declaration → Higher tax

✅ 3. Special Cases & Handling

Situation Recommendation
OEM Propellant Gas Provide client order + technical drawings to avoid "non-standard" classification
Mixture of Gases Clearly specify composition in SDS and invoice
Reused or Refilled Cylinders Declare as "Used Gas Cylinders" if applicable, may qualify for different tariff
Non-Chinese Origin If from Vietnam, Mexico, or Thailand, may qualify for IEEPA exemption (0%–5%)

🌍 V. Global Market Clearance Comparison (2026)

Country/Region Recommended HS Code Tariff Certification Notes
🇺🇸 USA 3813.00.50.00 / 3813.00.10.00 35%–38.7% SDS + CO High duty for Chinese origin
🇨🇳 China 3813.00.50.00 / 3813.00.10.00 0%–5% CCC No additional duties
🇪🇺 EU 3813.00.50.00 0%–4% CE + REACH No 301 or 122 Clause
🇦🇺 Australia 3813.00.50.00 5% RCM Moderate duty
🇯🇵 Japan 3813.00.50.00 0% PSE No extra duties

📌 Conclusion: - USA imposes the highest duties (35%–38.7%) for Chinese-origin propellant gases. - EU and Japan offer more favorable rates, making them attractive markets. - China has no additional duties, ideal for domestic sales.


📌 VI. Common Mistakes & Avoidance Guide

Mistake 1: Declaring as "Industrial Gas" instead of "Fire Extinguisher Propellant"
👉 Result: Incorrect HS Code → 38.7% duty applied instead of 0–5%.

Mistake 2: Not providing SDS
👉 Result: Customs delay or rejection → Demurrage + Storage Fees.

Mistake 3: Splitting cylinder and gas declaration
👉 Result: Higher duty per item → Total tax up to 100%+.

Mistake 4: Using generic "Noble Gas" label for fire propellant
👉 Result: Misclassification → 38.7% duty instead of 35%.

Correct Approach:

"Fire Extinguishing Propellant Gas, Nitrogen (N₂), 99.99% Purity, 200 Bar, Cylinder 50L, HS 3813.00.10.00"


🎯 VII. Conclusion: Precise Classification Saves Costs!

🎯 Remember the Mantra:

🔹 "Name It Right, Classify It Right, Save Your Margin!"
🔹 "HS Code is life or death, 38.7% vs 5%, one mistake costs thousands!"


📌 Pro Tip:
If your propellant gas originates from Vietnam, Mexico, Thailand, or Malaysia, you may qualify for IEEPA exemption, reducing duty to 0%–5%.
Recommend Advance Ruling (Customs Pre-Determination) to avoid clearance delays.


📣 Take Action Now:

📞 Contact a licensed customs broker + Provide product specs + Request HS Code Pre-Determination
🚀 Ensure your Fire Extinguishing Propellant Gas clears customs smoothly, efficiently, and profitably!


Professional Customs Clearance Starts with Accurate Classification!
💼 Every cent of your cost deserves precise calculation!

用户评价

关于 HS 编码归类

协调制度(HS)是由世界海关组织(WCO)制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。

每个 HS 编码遵循以下层级结构:

  • 章(2 位)——商品大类(例如:第 84 章:机器和机械设备)
  • 品目(4 位)——章内的更具体分类
  • 子目(6 位)——国际通用细分,所有 WCO 成员国统一使用
  • 本国细分(8-10 位)——各国自行扩展的细分编码,如美国 HTSUS 10 位编码

正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。

CN进口到US时,适用的关税税率可能包括:

  • 最惠国(MFN)税率——适用于 WTO 成员国的标准关税税率
  • 普通税率——适用于无贸易协定国家
  • 贸易救济关税——附加关税,如 301 条款(反倾销)、232 条款(国家安全)或反补贴税

本页内容仅供参考。如需正式归类,请咨询当地海关或持牌报关代理。