铸造用粘合剂稳定剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3810905000 | 40.0% | CN | US | Official Doc |
| 3202105000 | 41.5% | CN | US | Official Doc |
| 3824100000 | 41.0% | CN | US | Official Doc |
| 3202905000 | 40.0% | CN | US | Official Doc |
| 3810905000 | 40.0% | CN | US | Official Doc |
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AI Analysis
🏭 Foundry Binders & Stabilizers (Chemical Agents for Metal Casting)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Are You Sure What "Foundry Binders" Are?
Foundry binders and stabilizers are specialized chemical additives used in the metal casting process. They act as the "glue" that holds sand together to form molds and cores, ensuring structural integrity during the pouring of molten metal. In international trade, these are classified based on their chemical composition and specific industrial application.
⚠️ Key Distinction:
- If the product is primarily for metal surface treatment (e.g., pickling, rust removal) → It may fall under 3810.
- If the product is for forming sand molds/cores → It may fall under 3824.
- If the product has tanning properties (rare in pure foundry use but possible in complex formulations) → It may fall under 3202.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority)
Based on the provided data, here are the four potential HS Codes for Foundry Binders & Stabilizers, along with their specific tax implications.
| HS Code | Product Description | Application Context | Key Characteristics |
|---|---|---|---|
3810.90.50.00 |
Chemical preparations for metal casting & auxiliary agents | Metal casting process chemicals, surface acid pickling agents | Chemical auxiliary agents for metal processing |
3202.10.50.00 |
Synthetic organic tanning preparations | Chemical auxiliaries with tanning properties | Matches "Other synthetic organic tanning materials" |
3824.10.00.00 |
Prepared binders for metal casting molds/cores | Casting use, chemical modified additives | Consistent with binders for molds or cores |
3202.90.50.00 |
Other synthetic organic/inorganic tanning preparations | Chemical additives with tanning nature | "Other" category for tanning agents |
🔍 Critical Reminder:
- 3824.10.00.00 is typically the most accurate classification for standard sand mold binders.
- 3810.90.50.00 is used if the binder is also used for surface treatment (e.g., anti-rust or pickling aids).
- 3202 Codes are less common for pure foundry use but may apply if the chemical formulation overlaps with tanning agents.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: 2025 November 10 onwards (including subsequent imports)
🎯 1. 3810.90.50.00 & 3202.90.50.00 —— Foundry Auxiliaries & Tanning Agents
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| USITC Surtax (Section 301) | +25.0% |
| 122-Clause Tariff | +10.0% |
| Total Effective Rate | 40.0% |
| Tax Calculation | CIF Value × 40% |
| De Minimis Exemption? | ❌ No (Not eligible) |
| Legal Basis Path | Base: 5.0% → 301: 25.0% → 122: 10.0% |
📌 Explanation:
- These codes attract a 40% total tariff when imported from China.
- The 25% is the standard Section 301 surtax.
- The 10% is the "122-Clause" tariff (likely referring to specific enforcement clauses or additional duties under current trade regulations).
🎯 2. 3824.10.00.00 —— Prepared Binders for Molds/Cores
| Item | Content |
|---|---|
| Base Tariff | 6.0% (ad valorem) |
| USITC Surtax (Section 301) | +25.0% |
| 122-Clause Tariff | +10.0% |
| Total Effective Rate | 41.0% |
| Tax Calculation | CIF Value × 41% |
| De Minimis Exemption? | ❌ No (Not eligible) |
| Legal Basis Path | Base: 6.0% → 301: 25.0% → 122: 10.0% |
📌 Note:
- This is the most precise HS code for "Foundry Binders."
- The total tariff is 41%, which is 1% higher than the 3810/3202 categories due to a higher base rate.
🎯 3. 3202.10.50.00 —— Synthetic Organic Tanning Preparations
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| USITC Surtax (Section 301) | +25.0% |
| 122-Clause Tariff | +10.0% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption? | ❌ No (Not eligible) |
| Legal Basis Path | Base: 6.5% → 301: 25.0% → 122: 10.0% |
📌 Note:
- This code results in the highest total tariff (41.5%).
- Only use this if the product cannot be classified under 3810 or 3824 and has strong tanning agent characteristics.
🛠️ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
✅ 1. Preparation Checklist (Mandatory Documents)
| Document | Required | Explanation |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must specify chemical composition, binding mechanism, and intended use (foundry/mold). |
| ✅ Safety Data Sheet (SDS) | ✔️ | For hazard classification (flammable, corrosive, etc.). |
| ✅ Product Photos | ✔️ | Labeling must show "Foundry Binder," "Sand Casting Aid," etc. |
| ✅ Commercial Invoice | ✔️ | Clearly state "Chemical Binder for Metal Casting Molds" – avoid vague terms like "Industrial Chemical." |
| ✅ Certificate of Origin | ✔️ | Critical for proving Chinese origin to apply correct surtaxes. |
| ✅ Customs Declaration Form | ✔️ | Must match the selected HS Code exactly. |
✅ 2. Declaration Strategy (Key Mnemonics)
🔥 "Binders go to 3824, Surface treatments to 3810, Tanning to 3202!"
| Scenario | Correct HS Code | Incorrect Practice | Consequence |
|---|---|---|---|
| Standard Sand Mold Binder | 3824.10.00.00 |
Misclassified as 3810 |
Overpay by 1% (Base 6% vs 5%) |
| Binder with Rust Inhibitor | 3810.90.50.00 |
Classified as 3824 |
Underpay by 1% → Audit Risk! |
| Chemical with Tanning Properties | 3202.x0.x0.00 |
Classified as 3824 |
Overpay by 0.5% or Misclassification Penalty |
| Vague "Industrial Chemical" | Rejection | No specific description | Delays, Seizure, or Rejection |
✅ 3. Special Circumstances Handling
| Situation | Handling Advice |
|---|---|
| Multi-Use Chemicals | If a binder is used for both casting and surface pickling, provide evidence for the primary use (casting → 3824 or 3810). |
| Liquid vs. Powder | Both forms can fall under these HS codes. Ensure the chemical nature (not physical state) determines the code. |
| Private Label (OEM) | Provide the manufacturer's formulation to prove it fits the chemical description of 3824 or 3810. |
| High-Temperature Resin Binders | If they contain specific resins (e.g., furan, phenolic), ensure the description highlights "prepared binders for molds." |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.10.00.00 |
41.0% (Total) | None Specific | High tariffs due to 301 + 122 clauses |
| 🇨🇳 China | 3824.10.00.00 |
6.0% (Import) | ISO 9001 | Base tariff only |
| 🇪🇺 EU | 3824.10.00.00 |
6.0% | REACH + CLP | No US-style surtaxes |
| 🇯🇵 Japan | 3824.10.00.00 |
5.0% | JIS | Lower base rate |
| 🇬🇧 UK | 3824.10.00.00 |
5.0% | UKCA | Post-Brexit trade deal may apply |
📌 Conclusion:
- The US market imposes the highest cost (40-41.5%) due to multiple surtaxes.
- European and Asian markets have significantly lower tariffs (5-6%).
- Strategy: If exporting to the US, consider supply chain diversification or value engineering to reduce the taxable CIF value.
📌 VI. Common Errors & Pitfalls (Blood Lessons)
❌ Error 1: Using generic terms like "Glue" or "Adhesive"
👉 Consequence: Customs may classify under Chapter 35 (Protein-based) or 39 (Plastics), leading to mismatched duties.
👉 Solution: Always use "Prepared Binders for Metal Casting" or "Chemical Agents for Foundry Processes."
❌ Error 2: Ignoring the "122-Clause" Tariff
👉 Consequence: Underestimating total landed cost by 10%.
👉 Solution: Factor in the 10% 122-Clause surtax in all US pricing models.
❌ Error 3: Misclassifying as "Chemical Products n.e.c." (3899)
👉 Consequence: If audited, the customs officer will reclassify to 3824 or 3810, leading to back taxes + penalties.
👉 Solution: Be specific in the product description.
❌ Error 4: Confusing "Foundry Binders" with "Metalworking Fluids" (3402)
👉 Consequence: Different tariff rates and regulatory requirements.
👉 Solution: Emphasize "Casting/Molding" use, not "Machining/Cutting."
🎯 VII. Conclusion: Professional Declaration, Cost Optimization
🎯 Remember the Mantra:
🔹 "Mold Binders = 3824 (41%), Surface Agents = 3810 (40%), Tanning = 3202 (41.5%)."
🔹 "Total US Tariff = Base + 25% (301) + 10% (122)."
🔹 "Specific Description Saves Money and Time."
📌 Pro Tip:
If your product is exclusively for mold making, choose 3824.10.00.00.
If it includes surface treatment additives, choose 3810.90.50.00.
Avoid 3202 codes unless your chemical profile strongly matches tanning agents, as they are riskier and more expensive.
📣 Immediate Action:
📞 Consult a Customs Broker to confirm the specific formulation.
📄 Prepare Detailed TDS/SDS for every shipment.
🚀 Optimize Landed Cost by understanding the 40-41.5% US tariff burden.
✨ Professional Clearance Starts with Accurate Classification!
💼 Your Bottom Line Depends on the Right HS Code!
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.