Ethylene Oxide Mould Release Agent for Casting
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3907300000 | 41.1% | CN | US | 官方文档 |
| 3824100000 | 41.0% | CN | US | 官方文档 |
| 3824810000 | 40.0% | CN | US | 官方文档 |
| 3907290000 | 41.5% | CN | US | 官方文档 |
| 3403115000 | 36.4% | CN | US | 官方文档 |
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AI分析
🏭 Ethylene Oxide Mould Release Agent for Casting
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Is It a Chemical Intermediate or a Processing Aid?
The "Ethylene Oxide Mould Release Agent for Casting" is a specialized chemical preparation used in metal casting processes to prevent molten metal from sticking to moulds or cores. Its classification depends heavily on its primary function and chemical composition (specifically ethylene oxide derivatives).
In international trade, this product sits at the intersection of epoxy resins/polyethers, chemical preparations for metalworking, and casting aids. Misclassification can lead to significant tariff discrepancies (up to 5%).
⚠️ Key Distinction Point:
- If classified primarily by its chemical structure (polyether/epoxy based), it falls under Chapter 39.
- If classified primarily by its function (casting aid/degreaser), it falls under Chapter 38.
- If classified as a lubricant/preparation for surface treatment, it falls under Chapter 34.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the four possible classifications and their corresponding tariff structures:
| HS Code | Product Description & Rationale | Applicable Scenario | Total Tax Rate |
|---|---|---|---|
| 3907.30.00.00 | Polyethers/Epoxy Chemicals: Classified based on ethylene oxide composition as epoxy resins/polyethers. | High purity ethylene oxide derivatives used primarily as chemical intermediates. | 41.1% |
| 3824.10.00.00 | Casting Preparations: Classified based on use as a chemical preparation for moulds or cores. | Specific mould/coke binders or release agents strictly for casting processes. | 41.0% |
| 3824.81.00.00 | Chemical Products (DECA): Classified based on ethylene oxide composition AND demoulding agent use. | General chemical preparations containing ethylene oxide derivatives used as demoulding agents. | 40.0% |
| 3907.29.00.00 | Other Polyethers: Classified based on polyether components (ethylene oxide derivatives) as other polyethers. | Broad categorization for polyether-based substances not specifically listed as epoxy resins. | 41.5% |
| 3403.11.50.00 | Oils/Preparations: Classified based on demoulding agent use and organic chemical characteristics (low oil content). | Surface treatment preparations, lubricating oils containing less than 70% petroleum oils. | 36.4% |
🔍 Critical Analysis:
- Lowest Tariff Option:3403.11.50.00(36.4%) is the most economical if the product can be justified as a "preparation for surface treatment" with low petroleum oil content.
- Highest Tariff Option:3907.29.00.00(41.5%) applies to general polyethers.
- Functional vs. Chemical: Customs often scrutinize whether the product is a "chemical" (Ch 38/39) or a "preparation/lubricant" (Ch 34). The description "Mould Release Agent" strongly suggests functional use, favoring Ch 38 or Ch 34.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (and subsequent imports)
🎯 1. 3403.11.50.00 —— Lubricating Preparations (Low Oil Content)
🏆 RECOMMENDED FOR LOWEST TARIFF
| Item | Content |
|---|---|
| Base Duty Rate | 1.4% |
| USITC Additional Duty | +25% (Under USITC Footnote 9903.88.01) |
| IEEPA Additional Duty | +10% (For China/HK products, effective Nov 10, 2025) |
| Total Tax Rate | 36.4% |
| Tax Calculation | CIF Value × 36.4% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3403.11.50.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- The low base rate (1.4%) makes this the most competitive option.
- To qualify, you must prove it is a "preparation for surface treatment" and contains less than 70% petroleum oils by weight.
- Documentation must clearly state it is NOT a pure petroleum oil product.
🎯 2. 3824.81.00.00 —— Chemical Products (Ethylene Oxide Based)
| Item | Content |
|---|---|
| Base Duty Rate | 5.0% |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Tax Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.81.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- This code specifically captures "Chemical products and preparations" containing ethylene oxide derivatives.
- It is a safe "middle ground" if the product is clearly a chemical mixture but not a pure polyether.
🎯 3. 3907.30.00.00 —— Epoxy Resins / Polyethers
| Item | Content |
|---|---|
| Base Duty Rate | 6.1% |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Tax Rate | 41.1% |
| Tax Calculation | CIF Value × 41.1% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3907.30.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- Used if the primary component is strictly identified as an epoxy resin or polyether intermediate.
- Higher base rate than Ch 38 or Ch 34 options.
🎯 4. 3824.10.00.00 —— Casting Preparations
| Item | Content |
|---|---|
| Base Duty Rate | 6.0% |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Tax Rate | 41.0% |
| Tax Calculation | CIF Value × 41.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.10.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- Specifically for chemical preparations used in mould or core making.
- Slightly higher than the Ch 38.81 option but lower than Ch 39 options.
🎯 5. 3907.29.00.00 —— Other Polyethers
| Item | Content |
|---|---|
| Base Duty Rate | 6.5% |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3907.29.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- The least favorable option in terms of tax burden. Only use if no other classification fits.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Required Documentation Checklist (All Mandatory)
| Document | Mandatory? | Notes |
|---|---|---|
| ✅ Certificate of Analysis (COA) | ✔️ | Must specify % of ethylene oxide derivatives, base oil content, and chemical structure. |
| ✅ Product Technical Data Sheet (TDS) | ✔️ | Detail the intended use ("Mould Release Agent") and functional components. |
| ✅ Ingredient Disclosure | ✔️ | Breakdown of chemical composition to justify Ch 34 vs. Ch 38 vs. Ch 39. |
| ✅ Commercial Invoice | ✔️ | Clearly state "Mould Release Agent, Ethylene Oxide Based, for Casting Use". |
| ✅ Material Safety Data Sheet (MSDS/SDS) | ✔️ | Required for hazardous chemical clearance. |
| ✅ Packing List | ✔️ | Consistent with invoice and commercial documents. |
✅ 2. Declaration Strategy (Key Mantra)
🔥 “Function Over Formula, Document the Low Oil, Claim Ch 34 to Save Big!”
| Scenario | Correct Declaration Approach | Wrong Approach |
|---|---|---|
| Product is a mixture with low petroleum oil | 3403.11.50.00 (36.4%) |
Declaring as pure oil or polyether → 40%+ |
| Product is primarily ethylene oxide polymer | 3824.81.00.00 (40.0%) |
Declaring as casting aid only → Risk of reclassification |
| Product is a specific casting binder | 3824.10.00.00 (41.0%) |
Declaring as general chemical → Higher base rate |
| Product is a pure polyether resin | 3907.30.00.00 (41.1%) |
Declaring as release agent → Misuse of function |
✅ 3. Special Cases & Handling
| Situation | Handling Advice |
|---|---|
| High Petroleum Oil Content | If >70% petroleum oil, it may fall under Chapter 27 or different Ch 34 codes. Ensure COA shows <70% if claiming 3403.11.50.00. |
| Ethylene Oxide Residue | Since Ethylene Oxide is hazardous, ensure SDS clearly states residue levels and handling precautions. |
| OEM / Private Label | Provide contract or authorization letter to prove brand ownership and technical specs. |
| Pre-shipment Inspection | Recommended for high-value shipments to verify classification before arrival. |
🌍 V. Global Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3403.11.50.00 |
36.4% | SDS, COA | Highest risk of audit; documentation is key. |
| 🇨🇳 China | 3403.11.00.00 |
1.4% | N/A | Base rate applies; no US-style surtaxes. |
| 🇪🇺 EU | 3403.11.00.00 |
1.4% | REACH | No additional surtaxes; focus on chemical compliance. |
| 🇯🇵 Japan | 3403.11.00.00 |
1.4% | JIS | Low base rate; stable tariff structure. |
📌 Conclusion:
- USA imposes significant additional tariffs (35% total add-ons on base rates).
- Choosing3403.11.50.00saves ~5% compared to other options, which is substantial on large shipments.
- China, EU, and Japan have low base rates, making US exports particularly cost-sensitive.
📌 VI. Common Errors & Pitfall Guide (Blood & Tears Lessons)
❌ Error 1: Declaring as "Chemical Mixture" without specifying function
👉 Consequence: Customs may assign a higher general duty code (e.g., 3824.90) → Higher tax + Delays.
❌ Error 2: Failing to disclose Ethylene Oxide content
👉 Consequence: Violation of hazardous materials regulations → Seizure or Fines.
❌ Error 3: Claiming 3403.11.50.00 without proof of <70% petroleum oil
👉 Consequence: Rejected by Customs → Retrospective tax adjustment + Penalties.
❌ Error 4: Using vague names like "Lubricant" instead of "Mould Release Agent"
👉 Consequence: Unclear intent → Request for Additional Information (RFI) → Delays.
✅ Correct Approach:
"Mould Release Agent, Ethylene Oxide Derivative Based, For Metal Casting, Contains <70% Petroleum Oil, SDS Attached, Model XYZ"
🎯 VII. Conclusion: Precision in Classification, Savings in Duty
🎯 Remember the Mantra:
🔹 "Function First, Oil Content Low, Ch 34 is King, Save Five Percent!"
🔹 "HS Code Determines Cost, Tax Difference is 5%, Declaration Mistake Costs Thousands!"
📌 Pro Tip:
If your product is originated from Vietnam, Mexico, Thailand, or Malaysia, you may qualify for IEEPA Exemptions, reducing the total tax rate significantly.
Recommendation:
📞 Contact a professional customs broker + Provide Product Specs + Apply for Advance Ruling
🚀 Ensure your mould release agent clears customs smoothly, efficiently exports, and maximizes profit!
✨ Professional clearance starts with precise classification!
💼 Every cent of your cost deserves to be calculated precisely!
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关于 HS 编码归类
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