Eco friendly Casting Binder
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3506990000 | 37.1% | CN | US | 官方文档 |
| 3903905000 | 41.5% | CN | US | 官方文档 |
| 3901909000 | 41.5% | CN | US | 官方文档 |
| 3901905501 | 41.5% | CN | US | 官方文档 |
| 3506915000 | 37.1% | CN | US | 官方文档 |
商品图片
AI分析
🌿 Eco-Friendly Casting Binder (Polymer Casting Adhesive)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition and Classification: What exactly is a "Casting Binder"?
In the foundry and casting industry, an "Eco-friendly Casting Binder" refers to adhesives used to bond sand grains together to form molds and cores. These binders are typically polymer-based, designed to replace traditional toxic or high-emission binders (like oil-based or certain phenolic resins).
In international trade, classification depends heavily on whether the product is viewed as a finished adhesive (Chapter 35) or a primary chemical polymer (Chapter 39).
⚠️ Key Distinction:
- If the product is pre-formulated for immediate use as an adhesive (mixed with additives, solvents, or specific polymers for bonding) → Classify as Adhesives (Chapter 35).
- If the product is a primary polymer used as a raw material for further processing → Classify as Plastics/Polymers (Chapter 39).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the five possible HS Code classifications for "Polymer Casting Binder," along with their tax implications and logical reasoning.
| HS Code | Product Description | Logical Basis for Classification | Total Tax Rate | Tax Breakdown |
|---|---|---|---|---|
| 3506.99.00.00 | Polymer casting adhesive (General Adhesive) | Classified as Adhesives. The material is polymer-based, but it fits the definition of "prepared adhesives" (already formulated for bonding). | 37.1% | Base: 2.1% Section 301: 25.0% Section 122: 10% |
| 3903.90.50.00 | Styrene Polymer | Classified as Styrene Polymers. The form is considered a primary polymer application, fitting the "other" category logic under Chapter 39. | 41.5% | Base: 6.5% Section 301: 25.0% Section 122: 10% |
| 3901.90.90.00 | Ethylene Polymer | Classified as Ethylene Polymers. The material and form align with the characteristics of "primary form chemicals." | 41.5% | Base: 6.5% Section 301: 25.0% Section 122: 10% |
| 3901.90.55.01 | Ethylene Copolymer | Classified as Ethylene Copolymers. The material fits within the scope of "primary polymer forms." | 41.5% | Base: 6.5% Section 301: 25.0% Section 122: 10% |
| 3506.91.50.00 | Other Prepared Adhesives | Classified as Adhesives (Other). Material is polymer, but judged under "other categories" logic for prepared adhesives. | 37.1% | Base: 2.1% Section 301: 25.0% Section 122: 10% |
🔍 Key Observation:
- Adhesive Classifications (3506): Lower total tax (37.1%).
- Polymer Classifications (3901/3903): Higher total tax (41.5%).
- Difference: 4.4% tax difference. Choosing the correct HS Code can significantly impact customs costs.
💰 III. 2026 Latest Tariff Rate Detailed Explanation (Including Additional Taxes)
✅ Applicable Country: United States (US)
✅ Origin: China (CN) (Assumed based on Section 122/301 context)
✅ Effective Time: Current regulations applicable to 2026 imports
🎯 1. Adhesive Classifications (3506.99.00.00 & 3506.91.50.00)
| Item | Content |
|---|---|
| Base Tariff Rate | 2.1% (ad valorem) |
| Section 301 Additional Tariff | +25.0% (Under US Trade Law Section 301) |
| Section 122 Tariff | +10.0% (Additional tariff for certain Chinese goods) |
| Total Effective Rate | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption | ❌ Not Eligible (De Minimis does not apply to Section 301/122 tariffs) |
| Legal Basis Path | Section 301 → Section 122 → USITC: 3506.99.00.00 / 3506.91.50.00 |
📌 Explanation:
- Base 2.1%: Standard Most Favored Nation (MFN) rate for adhesives.
- Section 301 (25%): Retaliatory tariffs on Chinese goods.
- Section 122 (10%): Specific additional duties applied to certain imports from China.
- Total 37.1%: This is the effective landed cost percentage for adhesive-classified casting binders.
🎯 2. Polymer Classifications (3903.90.50.00, 3901.90.90.00, 3901.90.55.01)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% (ad valorem) |
| Section 301 Additional Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Section 301 → Section 122 → USITC: 39xx.xxxx.xx |
📌 Note:
- Base 6.5%: Higher base rate for primary polymers compared to prepared adhesives.
- Total 41.5%: Despite the same additional tariffs, the higher base rate results in a 4.4% higher total tax compared to adhesive classifications.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
✅ 1. Preparation Checklist (Non-Negotiable)
| Document | Must Provide | Description |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must clearly state the product is a "Casting Binder" or "Adhesive," not just "Styrene" or "Ethylene." |
| ✅ Formula/Composition | ✔️ | Show that it is a prepared mixture (polymers + solvents + additives) to support Chapter 35 classification. |
| ✅ Product Photos | ✔️ | Show packaging, labels, and industrial application context (e.g., sand casting). |
| ✅ Certificate of Origin (CO) | ✔️ | Essential for tariff calculation. |
| ✅ Commercial Invoice | ✔️ | Clearly describe as "Eco-Friendly Polymer Casting Binder, Prepared Adhesive," not "Raw Polymer." |
| ✅ Safety Data Sheet (SDS) | ✔️ | Required for chemical imports; ensures compliance with transportation regulations. |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 "Prepared = Adhesive (3506), Raw = Polymer (3901/3903)! Save 4.4% Tax!"
| Scenario | Correct HS Code | Wrong Classification | Consequence |
|---|---|---|---|
| Pre-mixed casting adhesive | 3506.99.00.00 |
3903.90.50.00 |
Overpay 4.4% tax (41.5% vs 37.1%) |
| Pre-mixed casting adhesive | 3506.91.50.00 |
3901.90.90.00 |
Overpay 4.4% tax |
| Raw polymer granules/powder | 3901.90.55.01 |
3506.99.00.00 |
Undervaluation risk, potential penalty for misclassification |
📌 Critical Tip:
- If your product is already mixed with other ingredients to function as an adhesive, strongly argue for Chapter 35.
- If your product is pure polymer resin meant to be diluted or mixed by the buyer, Chapter 39 may be appropriate (but higher tax).
✅ 3. Special Cases Handling
| Situation | Handling Advice |
|---|---|
| Eco-Friendly Labeling | Provide certification (e.g., ASTM, ISO) to justify "Eco-Friendly" in marketing, but HS Code is based on physical state, not marketing terms. |
| Mixed Containers | If shipping with other chemicals, ensure clear separation and documentation to avoid cross-contamination classification issues. |
| OEM Private Label | The classification remains the same regardless of brand; focus on the product's technical composition. |
| Change in Formula | If you add solvents or catalysts, it reinforces the "prepared adhesive" status (Chapter 35). |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3506.99.00.00 |
37.1% | SDS, Prop 65 (if CA) | Best option: Lower tax than polymer classification. |
| 🇺🇸 USA | 3903.90.50.00 |
41.5% | SDS | Avoid unless product is pure polymer. |
| 🇨🇳 China | 3506.99.00.00 |
~10-15% | N/A | Import duties vary; check local BOCOA rules. |
| 🇪🇺 EU | 3506.99.00.00 |
~2-5% | REACH, SDS | No Section 301/122 tariffs. Favorable for adhesives. |
| 🇬🇧 UK | 3506.99.00.00 |
~2-5% | UK REACH | Post-Brexit rules may vary; check latest UK tariff. |
📌 Conclusion:
- USA: Tax difference is significant (4.4%). Chapter 35 is preferred for cost efficiency.
- EU/UK: Lower overall tariffs; Chapter 35 remains standard for prepared adhesives.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring as "Raw Polymer" when it is a "Prepared Adhesive"
👉 Consequence: Overpaying 4.4% in taxes unnecessarily.
❌ Mistake 2: Using vague terms like "Chemical" or "Resin" in the invoice
👉 Consequence: Customs may audit, causing delays or reclassification to higher-tax categories.
❌ Mistake 3: Ignoring Section 122 and 301 tariffs
👉 Consequence: Unexpected high duties at port, leading to cash flow issues or storage fees.
❌ Mistake 4: Assuming "Eco-Friendly" reduces tariffs
👉 Consequence: Tariffs are based on HS Code, not environmental claims. No tax break unless specifically exempted (rare).
✅ Correct Practice:
"Eco-Friendly Polymer Casting Binder, Pre-mixed Adhesive for Sand Molds, Containing Styrene/Ethylene Copolymers, Model XYZ, SDS Provided"
🎯 VII. Conclusion: Smart Classification, Smart Savings!
🎯 Remember the Mnemonic:
🔹 "Prepared Adhesive = 3506 (37.1%) | Raw Polymer = 390x (41.5%)"
🔹 "Save 4.4% by choosing the right Chapter!"
🔹 "Section 301 + 122 are unavoidable for China-origin goods to the US!"
📌 Pro Tip:
- If your product can be technically classified as either, choose Chapter 35 for lower tariffs.
- Ensure your Technical Data Sheet (TDS) supports the "prepared adhesive" argument.
- Consider applying for a Binding Ruling from US Customs and Border Protection (CBP) to lock in the 37.1% rate.
📣 Take Action Now:
📞 Consult a Customs Broker
📄 Prepare TDS and SDS
🚀 Declare Correctly: 3506.99.00.00
💼 Minimize Duties, Maximize Profit!
✨ Professional Clearance Starts with Precise Classification!
💼 Every cent counts in international trade!
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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。