aromatic hydrocarbon based molding additive
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2902909000 | 35.0% | CN | US | 官方文档 |
| 2902903050 | 35.0% | CN | US | 官方文档 |
| 3824992900 | 41.5% | CN | US | 官方文档 |
| 3824100000 | 41.0% | CN | US | 官方文档 |
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AI分析
🧪 Aromatic Hydrocarbon Based Molding Additive (芳香烃基铸型添加剂)
🌐 HS Code Classification & Customs Clearance Guide | 2026 Latest Tariff Analysis | Expert Clearance Strategy
📌 Product Definition & Classification: What is an "Aromatic Hydrocarbon Based Molding Additive"?
An Aromatic Hydrocarbon Based Molding Additive is a chemical substance primarily composed of aromatic hydrocarbons, used in the manufacturing of molds or cores (typically in foundry processes). Its function is often that of a binder, modifier, or processing aid for casting molds.
In international trade, its classification is critical because it can fall under: 1. Simple Aromatic Hydrocarbons (Chapter 29) – if it is a pure chemical substance. 2. Prepared Binders/Additives for Casting (Chapter 38) – if it is a mixture or specifically prepared for molding purposes.
⚠️ Key Distinction:
- If it is a pure aromatic hydrocarbon with no other functional preparation → Chapter 29
- If it is a mixture, solution, or prepared additive specifically for casting molds → Chapter 38
📦 HS Code Classification Details (2026 Latest Tariff Authority Reference)
| HS Code | Product Description | Applicable Scenario | Tax Rate (US Import from CN) |
|---|---|---|---|
2902.90.90.00 |
Other aromatic hydrocarbons (not otherwise specified) | Pure aromatic hydrocarbon substance, basic chemical form | 35% |
2902.90.30.50 |
Alkylbenzenes and polyalkylbenzenes | Similar material to aromatic hydrocarbons; chemical additive form | 35% |
3824.99.29.00 |
Other prepared binders for foundry molds or cores; contains aromatic-modified substances | Used as a binder/modifier for casting molds; aromatic-based | 41.5% |
3824.10.00.00 |
Prepared binders for foundry molds or cores; chemical prepared additives | Specifically prepared for molding; chemical preparation attribute | 41.0% |
🔍 Critical Reminder:
- Chapter 29 codes apply if the product is a pure chemical substance (aromatic hydrocarbon).
- Chapter 38 codes apply if the product is a prepared mixture or specific casting additive.
- Misclassification can lead to significant tax differences (35% vs. 41.5%) and customs delays.
💰 2026 Latest Tariff Rate Breakdown (Including Additional Duties & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (and subsequent imports)
🎯 1. 2902.90.90.00 — Other Aromatic Hydrocarbons
| Item | Content |
|---|---|
| Base Tariff | 0% (ad valorem) |
| Section 301 Additional Tariff | +25% (from USITC Footnote 9903.88.01) |
| IEEPA Additional Tariff | +10% (targeting China/Hong Kong products, from Nov 10, 2025) |
| Total Tariff Rate | 35% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Eligibility | ❌ No (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:2902.90.90.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- The 25% Section 301 tariff is imposed under the U.S. Trade Act of 1974.
- The 10% IEEPA tariff is an additional surcharge under the International Emergency Economic Powers Act.
- Total 35%: High tariff cost. Must be factored into pricing strategy.
🎯 2. 2902.90.30.50 — Alkylbenzenes and Polyalkylbenzenes
| Item | Content |
|---|---|
| Base Tariff | 0% |
| Section 301 Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tariff Rate | 35% |
| Tax Calculation | CIF × 35% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:2902.90.30.50 → FOOTNOTE:9903.88.01 |
📌 Note:
- Same tariff rate as2902.90.90.00.
- Applies to alkylbenzenes and polyalkylbenzenes, which are structurally similar to aromatic hydrocarbons.
🎯 3. 3824.99.29.00 — Other Prepared Binders for Foundry Molds/Cores (Aromatic-Based)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF × 41.5% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3824.99.29.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- Higher base tariff (6.5%) due to being a "prepared product" rather than a pure chemical.
- Total 41.5%: Highest tariff among the options. Ensure classification is accurate.
🎯 4. 3824.10.00.00 — Prepared Binders for Foundry Molds or Cores
| Item | Content |
|---|---|
| Base Tariff | 6.0% |
| Section 301 Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tariff Rate | 41.0% |
| Tax Calculation | CIF × 41.0% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | IEEPA:9903.01.24 → USITC:3824.10.00.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Slightly lower base tariff (6.0%) than3824.99.29.00.
- Applies specifically to binders for foundry molds/cores.
🛠️ Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance Guide)
✅ 1. Required Documentation Checklist (None of these can be missing)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must include chemical composition, CAS number, physical form, and intended use |
| ✅ Chemical Structure Formula | ✔️ | To prove whether it is a pure aromatic hydrocarbon or a mixture |
| ✅ Product Photos (including label) | ✔️ | Clear view of model, brand, and safety data |
| ✅ Third-Party Test Report | ✔️ | SDS (Safety Data Sheet), REACH, or other chemical compliance documents |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Aromatic Hydrocarbon Based Molding Additive" |
| ✅ Certificate of Origin (CO) | ✔️ | If not from China, may qualify for preferential rates |
| ✅ Packing List | ✔️ | Details packing structure to avoid misclassification as separate parts |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 “Pure Chemical = Ch29, Prepared Binder = Ch38. Name Precision Saves Tax!”
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Pure aromatic hydrocarbon | 2902.90.90.00 or 2902.90.30.50 |
Misdeclare as "additive" → 41% |
| Prepared molding binder | 3824.10.00.00 or 3824.99.29.00 |
Misdeclare as "pure chemical" → 35% |
| Mixture with other solvents | Must declare as "Prepared Product" | Declare as pure chemical → High risk of penalty |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Chemical | Provide client order + chemical structure drawings to avoid "non-standard" classification |
| Product used in metal casting | Emphasize "foundry mold binder" if declaring under Ch38 |
| Product used in plastic molding | May still fall under Ch38 if prepared for molding, but provide technical justification |
| Imported as a sample | Still subject to full tax; de minimis does not apply for Ch29/Ch38 from China |
🌍 Global Major Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2902.90.90.00 / 3824.10.00.00 |
35% ~ 41.5% (from CN) | SDS, REACH (if applicable) | High additional tariffs |
| 🇨🇳 China | 2902.90.90.00 / 3824.10.00.00 |
~6.5% ~ 10% | None for import | Lower base tariff |
| 🇪🇺 EU | 2902.90.90.00 / 3824.10.00.00 |
~6.5% ~ 10% | REACH, CLP | No Section 301/IEEPA |
| 🇦🇺 Australia | 2902.90.90.00 / 3824.10.00.00 |
~5% ~ 10% | AICIS | No additional tariffs |
| 🇯🇵 Japan | 2902.90.90.00 / 3824.10.00.00 |
~0% ~ 6% | JIS | No additional tariffs |
📌 Conclusion:
- USA is the only market imposing severe additional tariffs (25%+10%) on Chinese-origin aromatic hydrocarbons and prepared binders.
- EU, Japan, Australia, and China have significantly lower tariff burdens.
- If targeting the US market, consider supply chain relocation or pre-approval of HS Code via Advance Ruling.
📌 Common Mistakes & Pitfall Avoidance Guide (Lessons from Blood and Tears)
❌ Mistake 1: Declaring a prepared binder as a pure chemical
👉 Consequence: Underpaid tax (35% vs 41.5%) → Back taxes + fines + seizure!
❌ Mistake 2: Declaring a pure aromatic hydrocarbon as a molding additive
👉 Consequence: Overpaid tax (41% vs 35%) → Lost profit margin!
❌ Mistake 3: Failure to provide chemical structure/CAS number
👉 Consequence: Customs cannot determine classification → Delay in release or return shipment
❌ Mistake 4: Using vague names like "Chemical Additive" without detail
👉 Consequence: Customs assumes worst-case scenario (highest tax) → 41.5% applied automatically
✅ Correct Practice:
“Aromatic Hydrocarbon Based Molding Additive, CAS No. XXXXX-XX-X, Chemical Structure: C6H5-CH3, Used for Foundry Mold Binding, Pure Substance/Prepared Mixture, Model XYZ, SDS Attached”
🎯 Conclusion: Precise Classification, Save Time, Reduce Costs, Maximize Efficiency!
🎯 Remember the Mnemonics:
🔹 “Pure Chemical = Ch29 (35%), Prepared Binder = Ch38 (41%), Name Precision Saves Tax!”
🔹 “HS Code Determines Life or Death, Tax Rate Differs by 6.5%, One Wrong Step, Thousands in Penalties!”
📌 Pro Tip:
If your product is sourced from Vietnam, Mexico, Thailand, or Malaysia, you may be eligible for IEEPA Exemption, reducing the tariff to 0%~10%.
It is highly recommended to apply for an Advance Ruling (Pre-Decision) before shipment to avoid customs risks.
📣 Immediate Action:
📞 Contact a Professional Customs Broker + Provide Product Photos + Apply for HS Code Advance Ruling
🚀 Ensure your Aromatic Hydrocarbon Based Molding Additive passes customs smoothly, efficiently, and with maximum profit retention!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Dollar of Your Cost Deserves to Be Precisely Calculated!
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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。
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。
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
- 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。