Fatty Acid Ester Defoamer for Casting
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 1516100000 | 0.0% | CN | US | 官方文档 |
| 1516209100 | 0.0% | CN | US | 官方文档 |
| 3824100000 | 41.0% | CN | US | 官方文档 |
| 3824994140 | 39.6% | CN | US | 官方文档 |
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AI分析
🧪 Fatty Acid Ester Defoamer for Casting
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Entry Strategy
📌 I. Product Definition and Classification: Do You Really Understand "Fatty Acid Ester Defoamers"?
Fatty acid esters are derivatives of fats and oils. In the casting industry, they are primarily used as mold binding agents, core binders, or chemical modifiers to prevent foaming during the pouring and curing processes. The classification depends heavily on whether the product is viewed as a raw oil derivative or a finished chemical preparation.
International trade distinguishes between two main categories for this product:
- Oil Derivatives (Chapter 15): Unmodified or minimally processed fatty acid esters, viewed as processed fats/oils.
- Chemical Preparations (Chapter 38): Fatty acid esters mixed with other chemicals, or specifically formulated as binding agents/modifiers for industrial use.
⚠️ Key Distinction Point: - If the product is a pure or simple derivative of fats/oils used in casting without complex chemical modification → Classified under HS Code 1516.x.x.x.x - If the product is a mixture, preparation, or specifically marketed as a "binding agent" or "chemical modifier" for casting molds → Classified under HS Code 3824.x.x.x.x
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Context | Taxable Rate (China to US) |
|---|---|---|---|
1516.10.00.00 |
Fatty acid esters; their fractions, whether or not refined, but not chemically modified | Direct oil derivatives; simple fatty acid esters used in casting | 7¢/kg + 17.5% |
1516.20.91.00 |
Other fatty acid esters; fractions of oils fixed, whether or not refined, but not chemically modified | Vegetable/Animal oil derivatives; "Other" category if not specifically listed | 8.8¢/kg + 17.5% |
3824.10.00.00 |
Prepared binders for foundry molds or cores | Chemical modifiers; binding agents logic; industrial use | 41.0% |
3824.99.41.40 |
Other prepared binders for foundry molds or cores | Mixtures; pre-formed binding agents for casting molds/cores | 39.6% |
🔍 Key Reminder: - Chapter 15 is for "Oils and Their Fractions." If your defoamer is essentially a purified fatty acid ester with no other active ingredients, it falls here. - Chapter 38 is for "Miscellaneous Chemical Products." If your product is a mixture (ester + surfactants + additives) or explicitly labeled as a binding agent/preparation for casting, it likely falls here due to the "chemical preparation" nature. - Casting Use: The casting application is a critical link. If declared as a "binding agent" (Chapter 38), the tariff spikes significantly compared to raw material status (Chapter 15).
💰 III. 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Post-2025 (Includes Section 301 & IEEPA surcharges)
🎯 1. 1516.10.00.00 —— Fatty Acid Esters (Oil Derivative Status)
| Item | Content |
|---|---|
| Base Tariff | 7¢/kg (Specific Duty) |
| Section 301 Surtax | +7.5% (Ad Valorem) |
| IEEPA Surtax | +10% (Section 122/Emergency Powers) |
| Total Effective Rate | Specific: 7¢/kg + Ad Valorem: 17.5% |
| Tax Calculation | CIF Value × 17.5% + (Weight in kg × $0.07) |
| De Minimis Exemption? | ❌ No (High-value chemical imports usually exclude de minimis) |
| Legal Basis | USITC:1516.10.00.00 → Section 301 Footnote → IEEPA Section 122 |
📌 Explanation: - This code treats the product as a raw material derivative. - The 17.5% ad valorem tax is composed of the Section 301 surcharge (7.5%) and the IEEPA/Emergency surcharge (10%). - Advantage: Significantly lower than Chapter 38 codes. Ideal if the product is a pure ester.
🎯 2. 1516.20.91.00 —— Other Fatty Acid Esters (Plant/Animal Origin)
| Item | Content |
|---|---|
| Base Tariff | 8.8¢/kg (Specific Duty) |
| Section 301 Surtax | +7.5% (Ad Valorem) |
| IEEPA Surtax | +10% (Section 122/Emergency Powers) |
| Total Effective Rate | Specific: 8.8¢/kg + Ad Valorem: 17.5% |
| Tax Calculation | CIF Value × 17.5% + (Weight in kg × $0.088) |
| De Minimis Exemption? | ❌ No |
| Legal Basis | USITC:1516.20.91.00 → Section 301 Footnote → IEEPA Section 122 |
📌 Note: - Similar to the previous code, but applies to "other" fatty acid esters (e.g., specific vegetable oil derivatives). - Slightly higher specific duty (8.8¢ vs 7¢), but the ad valorem rate is identical. - Suitable for: Products derived primarily from plant or animal fats without complex chemical modification.
🎯 3. 3824.10.00.00 —— Prepared Binders for Foundry Molds or Cores
| Item | Content |
|---|---|
| Base Tariff | 6.0% (Ad Valorem) |
| Section 301 Surtax | +25.0% (Ad Valorem) |
| IEEPA Surtax | +10% (Section 122/Emergency Powers) |
| Total Effective Rate | 41.0% |
| Tax Calculation | CIF Value × 41.0% |
| De Minimis Exemption? | ❌ No |
| Legal Basis | USITC:3824.10.00.00 → Section 301 Footnote → IEEPA Section 122 |
📌 Critical Warning: - This code classifies the product as a "Prepared Binder." - If your SDS (Safety Data Sheet) or marketing materials emphasize "binding," "mold formation," or "core stability," US Customs may reclassify a defoamer under this code. - 41% is extremely high. It includes a massive 25% Section 301 surcharge on top of the base rate.
🎯 4. 3824.99.41.40 —— Other Prepared Binders for Foundry Molds or Cores
| Item | Content |
|---|---|
| Base Tariff | 4.6% (Ad Valorem) |
| Section 301 Surtax | +25.0% (Ad Valorem) |
| IEEPA Surtax | +10% (Section 122/Emergency Powers) |
| Total Effective Rate | 39.6% |
| Tax Calculation | CIF Value × 39.6% |
| De Minimis Exemption? | ❌ No |
| Legal Basis | USITC:3824.99.41.40 → Section 301 Footnote → IEEPA Section 122 |
📌 Note: - A catch-all for "other" prepared binders not specifically listed in 3824.10. - Still carries the 25% Section 301 surcharge. - Slight Advantage: Marginally lower total rate (39.6%) than 3824.10 (41.0%), but still significantly higher than Chapter 15 options.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Document Preparation Checklist (Non-negotiable)
| Document | Required | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail chemical composition. If it's >95% fatty acid ester, push for Chapter 15. |
| ✅ Safety Data Sheet (SDS) | ✔️ | Crucial. Section 3 ("Composition") must list ingredients. If "binding agent" is listed, expect Chapter 38. |
| ✅ Product Photos (Label/Packaging) | ✔️ | Clear view of the name. Avoid words like "Binder" or "Adhesive" if you want Chapter 15. Use "Defoamer" or "Surfactant." |
| ✅ Commercial Invoice | ✔️ | Description must be precise. E.g., "Fatty Acid Ester Defoamer, Chemical Modification: None." |
| ✅ Certificate of Origin (CO) | ✔️ | Mandatory for Section 301 and IEEPA verification. |
| ✅ Packaging List | ✔️ | Confirm net/gross weight for specific duty calculations (Chapter 15). |
✅ 2. Declaration Strategy (Key Mnemonics)
🔥 “Pure Ester, Low Tax; Mixed Binder, High Tax!”
| Scenario | Correct Declaration | Error to Avoid |
|---|---|---|
| Pure Fatty Acid Ester | 1516.10.00.00 or 1516.20.91.00 |
Declaring as "Defoamer Mixture" → 39-41% |
| Mixture with Surfactants | Likely 3824.x.x.x.x |
Forcing Chapter 15 → Audit/Rejection |
| Used as Binding Agent | 3824.10.00.00 |
Trying to classify as raw oil → Misclassification Penalty |
| Defoamer Only | Push for 1516.x.x.x.x |
Using vague terms like "Industrial Chemical" |
✅ 3. Special Case Handling
| Case | Handling Advice |
|---|---|
| OEM Private Label | Ensure the label does NOT say "Binder" or "Glue." Use "Defoaming Agent" or "Release Agent." |
| Mixed with Solvents | If solvents are significant, it becomes a mixture → Likely Chapter 38. |
| High Purity (>95% Ester) | Provide third-party test reports proving high purity to argue for Chapter 15. |
| Foundry Specific Use | Even if used in foundries, the chemical nature determines the code. Prove it's a defoamer, not a binder. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 1516.10.00.00 (Best Case) |
7¢/kg + 17.5% | None | Avoid 3824 codes (39-41%) |
| 🇺🇸 USA (If Misclassified) | 3824.10.00.00 |
41.0% | None | High risk if binding properties are evident |
| 🇨🇳 China | 1516.10.00.00 |
~6% | None | Lower global baseline |
| 🇪🇺 EU | 1516.10.00.00 |
5-7% | REACH | No Section 301 equivalent |
| 🇲🇽 Mexico | 1516.10.00.00 |
0-5% | NOM | USMCA may apply if processed |
📌 Conclusion: - USA is the most challenging market due to Section 301 and IEEPA surcharges. - Chapter 15 is the golden target for cost savings. - Chapter 38 is a cost trap for defoamers; avoid it by ensuring the product is not defined as a "binder."
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Using "Foundry Binder" in the product name or SDS
👉 Consequence: Customs reclassifies to 3824.10.00.00 → Tariff jumps from 17.5% to 41%!
❌ Error 2: Declaring as "Other Chemical Product" without specifying composition
👉 Consequence: Customs assigns a generic code with high duty or delays for classification review.
❌ Error 3: Ignoring the "Specific Duty" in Chapter 15
👉 Consequence: Forgetting to pay the 7¢/kg leads to underpayment penalties.
❌ Error 4: Using vague terms like "Industrial Aid"
👉 Consequence: High scrutiny, potential audit, and misclassification risks.
✅ Correct Approach:
"Fatty Acid Ester (Stearate/Oleate), Purity >95%, Used as Defoaming Agent in Metal Casting, Not a Binding Agent."
🎯 VII. Conclusion: Precise Classification Saves Thousands!
🎯 Remember the Mnemonic:
🔹 "Ester is Oil, Tax is Low; Binder is Chemical, Tax is High!"
🔹 "1516 is 17.5%, 3824 is 40%, Don't Call it Binder!"
📌 Pro Tip:
If your product is a mixture, consider reformulating to increase the percentage of the fatty acid ester component. If it exceeds 90% pure ester, you have a stronger case for Chapter 15.
Apply for a Binding Ruling (RIN) from US Customs and Border Protection (CBP) before shipping to lock in the lower tax rate.
📣 Immediate Action:
📞 Contact your freight forwarder + Provide SDS + Avoid words "Binder" or "Adhesive"
🚀 Your defoamer can clear the US efficiently, saving up to 23% in duties!
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Every Percent Saved is Pure Profit!
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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。
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从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
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