石蜡脱硫剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824994900 | 41.5% | CN | US | Official Doc |
| 3824992900 | 41.5% | CN | US | Official Doc |
| 3402422010 | 39.0% | CN | US | Official Doc |
| 3402422050 | 39.0% | CN | US | Official Doc |
| 3824994900 | 41.5% | CN | US | Official Doc |
AI Analysis
🧪 Paraffin Desulfurization Agent (石蜡脱硫剂)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What Exactly is a "Paraffin Desulfurization Agent"?
A Paraffin Desulfurization Agent is a specialized chemical additive used in the refining industry to remove sulfur compounds from paraffin wax. In international trade, its classification depends heavily on its chemical composition and primary function. It is generally categorized either as a specific chemical preparation (hydrocarbon mixture) or as a surfactant, depending on the manufacturer's formulation.
⚠️ Key Distinction Point:
- If the agent is primarily composed of hydrocarbons derived from petroleum/natural gas and acts as a chemical mixture/reagent → It falls under 3824.99.49.00 / 3824.99.29.00 (Chemical Preparations).
- If the agent functions as a surfactant (e.g., based on fatty acids/alcohols) to emulsify or extract sulfur → It falls under 3402.42.20.10 / 3402.42.20.50 (Surface Active Agents).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicability Scenario | Material Basis |
|---|---|---|---|
3824.99.49.00 |
Other chemical products/preparations, not elsewhere specified; Hydrocarbon mixtures | Core component is hydrocarbon-based; acts as a chemical reagent | ✅ Hydrocarbon mixtures (Petroleum/Natural Gas derived) |
3824.99.29.00 |
Other chemical products/preparations; Chemical preparations for industrial use | General chemical preparation definition; no material conflict | ✅ Chemical preparations |
3402.42.20.10 |
Non-ionic organic surface active agents; Animal/Plant/Microbial source fats | Core component is fatty acids/alcohols; acts as a surfactant | ✅ Fat-based substances (Vegetable/Animal/Microbial origin) |
3402.42.20.50 |
Non-ionic organic surface active agents; Other organic sources | Chemical nature implies non-ionic/anionic surfactant; Paraffin/Hydrocarbon source logic | ✅ Fat-based substances (Paraffin/Hydrocarbon derived) |
🔍 Key Reminder:
- If the product is chemically reactive (removing sulfur via chemical reaction) and made of hydrocarbons, prioritize 3824 headings.
- If the product is physically active (emulsifying/separating sulfur via surfactant action) and made of fats/fatty acids, prioritize 3402 headings.
- Do not confuse with raw paraffin wax (2712/2710); this is a preparation/agent, not a raw fuel/wax.
💰 III. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3824.99.49.00 & 3824.99.29.00 —— Chemical Preparations (Hydrocarbon-based)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% (Ad valorem) |
| USITC Surcharge | +25% (Under USITC Footnote/Section 301 measures) |
| Section 122 Surcharge | +10% (Specific tariff clause applicable to certain chemical preparations) |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Applicable (High tariff rate exceeds typical de minimis thresholds; strict scrutiny applies) |
| Legal Basis Path | USITC:3824.99.49.00 → Section 301: 25% → Section 122: 10% |
📌 Explanation:
- "Base Tariff 6.5%": Standard MFN rate for unspecified chemical preparations.
- "Surcharge 25%": The standard US-China Section 301 additional duty on most Chinese chemical goods.
- "Section 122 10%": A specific additional duty applicable to this subheading under current trade policies.
- Total 41.5%: This is a high-cost entry point. Ensure your cost structure can absorb this or explore duty-paid alternatives.
🎯 2. 3402.42.20.10 & 3402.42.20.50 —— Organic Surface Active Agents (Fat-based)
| Item | Content |
|---|---|
| Base Tariff Rate | 4.0% (Ad valorem) |
| USITC Surcharge | +25% (Under USITC Footnote/Section 301 measures) |
| Section 122 Surcharge | +10% (Specific tariff clause applicable to these surfactant categories) |
| Total Tariff Rate | 39.0% |
| Tax Calculation | CIF Value × 39.0% |
| De Minimis Exemption | ❌ Not Applicable (Similar high-risk classification for customs valuation) |
| Legal Basis Path | USITC:3402.42.20.10 → Section 301: 25% → Section 122: 10% |
📌 Note:
- While the base rate is lower (4.0% vs 6.5%), the total burden (39.0%) is still significant.
- Classification under 3402 is only valid if the product is technically a surfactant (e.g., fatty alcohol ethoxylates). If it is a simple hydrocarbon mixture, misclassification here carries high audit risk.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Documentation Checklist (Indispensable)
| Document | Required | Explanation |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must detail chemical composition (Hydrocarbon % vs. Fat %), molecular structure, and function. |
| ✅ Formula/Composition Sheet | ✔️ | Critical for proving whether it is a "Chemical Preparation" (3824) or "Surfactant" (3402). |
| ✅ Product Photos (Label & Container) | ✔️ | Clear view of brand, model, and hazard labels. |
| ✅ Third-Party Test Report | ✔️ | ASTM/ISO standards for desulfurization efficiency and chemical identity. |
| ✅ Commercial Invoice | ✔️ | Must clearly state: "Paraffin Desulfurization Agent, Chemical Preparation" or "Surface Active Agent". |
| ✅ Certificate of Origin (CO) | ✔️ | If originating from non-China countries, may qualify for lower tariffs. |
| ✅ Packing List | ✔️ | Detailed weight and volume to match CIF calculation. |
✅ 2. Declaration Tips (Key Mnemonic)
🔥 "Chemical vs. Surfactant, Composition is King!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Hydrocarbon-based reagent | 3824.99.49.00 (41.5%) |
Misdeclaring as generic "additive" → Risk of penalty |
| Surfactant (Fatty Acid based) | 3402.42.20.10 (39.0%) |
Misdeclaring as "chemical prep" → Higher duty (41.5%) |
| Raw Paraffin Wax | 2712.90.00.00 |
Declaring as "Desulfurization Agent" → Wrong classification |
| Mixed Pack (Agent + Tools) | Primary Purpose Rule | Splitting shipment → Complex clearance |
✅ 3. Special Cases Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Agent | Provide client order + formula sheet to prove specific chemical nature. Avoid generic names. |
| Dual-Use (Surfactant + Reagent) | Choose the HS Code that best reflects the PRIMARY function. If primarily for cleaning/emulsifying, use 3402. If primarily for chemical desulfurization reaction, use 3824. |
| Hazmat Classification | Check if the agent is flammable or corrosive. If yes, ensure IMDG/IATA compliance for shipping to avoid port holds. |
| EPA Registration | If marketed as a pesticide or antimicrobial in addition to desulfurization, EPA registration may be required. |
🌍 V. Global Major Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.99.49.00 / 3402.42.20.xx |
41.5% / 39.0% | None specific (General) | Highest Cost Market due to 301/122 duties. |
| 🇨🇳 China | 3824.99 / 3402 |
~6-13% (VAT included) | None | Domestic consumption not covered. |
| 🇪🇺 EU | 3824.99 / 3402 |
0-6.5% (Standard MFN) | REACH Registration | REACH compliance is mandatory for chemicals. |
| 🇦🇺 Australia | 3824.99 / 3402 |
5% | AICIS Registration | Chemical inventory registration required. |
| 🇯🇵 Japan | 3824.99 / 3402 |
0-3.2% | JIS/POSC | No major surcharges, but strict quality checks. |
📌 Conclusion:
- USA remains the most expensive market for Chinese-origin chemical preparations due to multiple layers of surcharges (Base + 301 + 122).
- EU and Japan offer significantly lower tariff burdens but require strict chemical regulatory compliance (REACH, JIS).
- Strategy: For US imports, consider supply chain diversification (e.g., sourcing from Southeast Asia) to mitigate the 39-41.5% tariff burden, provided origin rules are strictly followed.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Declaring as "General Chemical Additive" without specifying nature.
👉 Consequence: Customs may reclassify to highest duty rate or hold shipment for exam → Delays + Demurrage Costs.
❌ Mistake 2: Misclassifying Hydrocarbon Mixtures as Surfactants to save 2.5%.
👉 Consequence: Audit failure → Penalties + Back Taxes + Potential Fraud Charges.
❌ Mistake 3: Ignoring Section 122 applicability.
👉 Consequence: Underpayment of duties → CBSA/Customs Audit in later years.
❌ Mistake 4: Using vague names like "Wax Cleaner".
👉 Consequence: Customs cannot determine HTS → Release Delay.
✅ Correct Practice:
"Paraffin Desulfurization Agent, Hydrocarbon-based Chemical Preparation, ASTM DXXXX Standard, Model XYZ, For Industrial Refining Use"
🎯 VII. Conclusion: Professional Declaration, Cost Control, Efficient Clearance!
🎯 Remember the Mnemonic:
🔹 "Hydrocarbon = 3824 (41.5%), Surfactant = 3402 (39.0%). Don't Guess, Prove It!"
🔹 "HS Code determines Duty, Classification Error means Penalty, Correct Declaration saves Time!"
📌 Pro Tip:
If your Paraffin Desulfurization Agent originates from Vietnam, Mexico, or Thailand, you may be eligible for IEEPA Exemptions or lower MFN rates (0-5%).
We recommend applying for an Advance Ruling before shipment to lock in the classification and avoid post-clearance audits.
📣 Immediate Action:
📞 Contact a Professional Customs Broker + Provide Formula/TDS + Apply for HS Code Advance Ruling
🚀 Ensure Your Desulfurization Agent, Clears Customs Smoothly, Exports Efficiently, Profits Maximized!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Cent of Your Cost Deserves Precise Calculation!
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.