纸张增韧剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3506915000 | 37.1% | CN | US | Official Doc |
| 3506990000 | 37.1% | CN | US | Official Doc |
| 3809925000 | 41.0% | CN | US | Official Doc |
| 3914002000 | 35.0% | CN | US | Official Doc |
| 3809921000 | 41.5% | CN | US | Official Doc |
Product Images
AI Analysis
🧪 Paper Toughening Agents (Paper Resin/Tougheners)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 Part 1: Product Definition & Classification: Do You Really Understand "Paper Toughening Agents"?
Paper Toughening Agents, also known as Paper Resins or Dry/Wet Strength Agents, are critical chemical additives used in the papermaking industry. Their primary function is to improve the mechanical properties of paper, specifically enhancing dry strength (tear resistance, fold endurance) and wet strength (resistance to water degradation).
In international trade, these products are chemically classified based on their composition and specific industrial application. They are generally categorized into two main streams: 1. Chemical Adhesives/Binders: Polymer-based products (e.g., Polyacrylamides, resins) acting as binding agents. 2. Papermaking Chemicals: Specialized formulations specifically designated for the paper and paperboard industry.
⚠️ Key Distinction Point:
- If the product is primarily a polymer-based adhesive or resin (even if used in paper), it often falls under Chapter 35 (Protein substances; Glues). - If the product is specifically formulated as an agent for finishing/preparing paper, it falls under Chapter 38 (Miscellaneous chemical products). - Crucial Note: Misclassification between Chapter 35 and 38 can lead to significant tariff differences and customs delays.
📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Key Characteristic |
|---|---|---|---|
3809.92.10.00 |
Agents for preparing or making up textile, paper, leather or like materials: Other | Papermaking industry: Toughening, finishing agents | ✅ Specific to Paper Industry |
3914.00.60.00 |
Ion-exchange agents, of plastics; other forms of ion-exchange agents | Polymer-based additives, plastic modifiers | ✅ Polymer/Ion-exchange nature |
3506.91.50.00 |
Prepared glues and other prepared adhesives: Based on polymers of heading 39.01 to 39.13 | Polymer-based glues/resins (e.g., Polyacrylamide) | ✅ Polymer-based Adhesive |
3506.99.00.00 |
Prepared glues and other prepared adhesives: Other | General prepared adhesives/chemical auxiliaries | ✅ General Prepared Adhesive |
3809.92.50.00 |
Agents for preparing or making up textile, paper, leather or like materials: Other | General papermaking chemicals, non-specific tougheners | ✅ General Paper Chemical |
🔍 Key Reminder:
-3809.92.xx.xxis often the most direct fit if the product is explicitly marketed and used as a "papermaking aid" or "toughener." -3506.xx.xxapplies if the product is chemically a "preparation of adhesives" or "polymer-based resin," even if used in paper. -3914.00.60.00is a niche classification for polymer/ion-exchange forms, applicable if the toughening mechanism relies heavily on ion-exchange properties of plastics.
💰 Part 3: 2026 Latest Tariff Rate Details (Including Surcharge & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (and subsequent imports)
🎯 1. 3809.92.10.00 – Papermaking Toughening Agents (Specific Paper Use)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| USITC Surcharge | +25% (From USITC Footnote 9903.88.01 - Section 301) |
| IEEPA Surcharge | +10% (Targeting China/HK products, effective from Nov 10, 2025) |
| Total Tariff | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3809.92.10.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- Although3809.92is a standard heading for papermaking agents, China-origin goods are heavily penalized. - The 25% is a Section 301 tariff on specific chemical/paper products. - The 10% is the new IEEPA surcharge. - Total 41.5% is a very high tariff. Early calculation is essential.
🎯 2. 3914.00.60.00 – Polymer/Ion-Exchange Agents
| Item | Content |
|---|---|
| Base Tariff | 3.9% |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Tariff | 38.9% |
| Tax Calculation | CIF Value × 38.9% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:3914.00.60.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- If your toughening agent is technically a polymer ion-exchange resin, this classification may apply. - Slightly lower than3809.92.10due to a lower base rate (3.9% vs 6.5%).
🎯 3. 3506.91.50.00 – Polymer-Based Prepared Glues/Adhesives
| Item | Content |
|---|---|
| Base Tariff | 2.1% |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Tariff | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:3506.91.50.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- If the toughener is a polyacrylamide-based or similar polymer resin that functions as a binder/adhesive, this code is highly relevant. - Lowest Base Rate (2.1%) among the options, but the surcharges remain high.
🎯 4. 3506.99.00.00 – Other Prepared Adhesives
| Item | Content |
|---|---|
| Base Tariff | 2.1% |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Tariff | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:3506.99.00.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- A "catch-all" for prepared adhesives not covered elsewhere. - Often used if the product doesn't fit the specific "polymer-based" (3506.91) definition but is still a "prepared adhesive."
🎯 5. 3809.92.50.00 – Other Papermaking Agents
| Item | Content |
|---|---|
| Base Tariff | 6.0% |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Tariff | 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:3809.92.50.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Similar to3809.92.10but for "other" agents not specifically listed. - Higher total tariff than adhesive categories due to higher base rate.
🛠️ Part 4: Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Required Documentation Checklist (No Exceptions)
| Document | Mandatory | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail chemical composition (e.g., % Polyacrylamide, % Resin), molecular weight, viscosity. |
| ✅ MSDS (SDS) | ✔️ | Critical for chemical clearance. Must indicate hazard class, handling instructions. |
| ✅ Product Photos (Label/Packaging) | ✔️ | Clear view of product name, batch number, manufacturer. |
| ✅ Third-Party Test Report | ✔️ | Reports from SGS, Intertek, or similar confirming "Paper Toughening" function. |
| ✅ Commercial Invoice | ✔️ | Must clearly state: "Chemical Additive for Papermaking Industry, Function: Toughening." Avoid vague terms like "Glue." |
| ✅ Certificate of Origin (CO) | ✔️ | If not China-origin, request for potential tariff reduction. |
| ✅ Packing List | ✔️ | Detail net/gross weight, package dimensions. |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "Function First, Composition Second, Name Accurate, Tariff Minimized!"
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| Polymer-based Toughener | 3506.91.50.00 or 3506.99.00.00 |
Misdeclare as 3809 → Higher base tax |
| Specific Paper Aid | 3809.92.10.00 |
Use generic "Chemical Mix" → Customs Inquiry |
| Ion-Exchange Polymer | 3914.00.60.00 |
Misdeclare as standard plastic → Penalty |
| Vague "Paper Glue" | Specify exact HS based on composition | Vague "Paper Glue" → Ambiguity & Delay |
📌 Strategy:
- If the product is primarily a polymer resin (e.g., PAM, CA resin), lean towards3506.
- If it is a finished formulation specifically for paper finishing, lean towards3809.
-3506generally has lower base rates (2.1%) compared to3809(6.0-6.5%), potentially saving 20% on the base amount.
✅ 3. Special Situations Handling
| Situation | Handling Advice |
|---|---|
| OEM Private Label | Provide client order + technical data sheet. Avoid "Generic" claims. |
| Mixed Chemicals | If blend, classify by principal component or essential character. Provide breakdown. |
| Sample Shipments | Same HS code applies. De Minimis (Section 321) is DENIED for China-origin goods due to IEEPA. |
| Used in Non-Paper Industry | If used in textiles, re-evaluate HS Code (possibly 3809.91 or 3809.93). Do not use paper-specific codes. |
🌍 Part 5: Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Note |
|---|---|---|---|---|
| 🇺🇸 USA | 3506.91.50.00 / 3809.92.10.00 |
37.1% - 41.5% | TSCA Compliance | High surcharges apply. |
| 🇨🇳 China | 3506.91.50.00 / 3809.92.10.00 |
0% - 6.5% | No Surcharge | Base rate only. |
| 🇪🇺 EU | 3809.41.00 / 3506.91.00 |
0% - 6.5% | REACH + CLP | No Section 301. |
| 🇦🇺 Australia | 3809.41.00 / 3506.91.00 |
5% | AICIS | No Surcharge. |
| 🇯🇵 Japan | 3809.41.00 / 3506.91.00 |
0% - 3.1% | JIS | No Surcharge. |
📌 Conclusion:
- USA is the only market with punitive surcharges (35-45%).
- EU, Japan, and Australia offer standard WTO MFN rates, significantly lower than the US.
- Strategy: If targeting the US, optimize HS Code to3506to save ~4-5% on base tariff, but be prepared for strict chemical compliance (TSCA).
📌 Part 6: Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Paper Toughener" as "Glue" (3506) without polymer basis.
👉 Consequence: Customs may reject if it's not a "prepared adhesive."
👉 Fix: Provide MSDS showing polymer/adhesive nature.
❌ Error 2: Using 3809.92.10 for a product that is chemically a 3914 polymer.
👉 Consequence: Audit risk if chemical composition doesn't match papermaking agent definition.
👉 Fix: Analyze chemical structure. If it's an ion-exchange resin, use 3914.
❌ Error 3: Assuming De Minimis (Section 321) applies for small shipments.
👉 Consequence: Package seized, fines, and back-payment of 37-41% tax.
👉 Fix: Always declare and pay duties for China-origin goods.
❌ Error 4: Vague Description: "Chemical for Paper."
👉 Consequence: Customs Examination Delay (5-10 days).
👉 Fix: Use precise technical name: "Polyacrylamide-based Wet Strength Agent for Papermaking."
✅ Correct Practice:
"Paper Toughening Agent, Chemical Name: Polyacrylamide Copolymer, Function: Wet Strength & Dry Strength, HS Code: 3506.91.50.00, Made in China."
🎯 Part 7: Conclusion: Professional Declaration, Save Time, Save Money!
🎯 Remember the Mnemonic:
🔹 "Polymer Base? Go to 3506. Paper Specific? Go to 3809. Always Check 301 & IEEPA!"
🔹 "HS Code Dictates Tax, 4% Difference Matters, Declaring Wrong Means Heavy Fines!"
📌 Pro Tip:
If your product is originating from Vietnam, Mexico, Thailand, or Malaysia, you may apply for IEEPA Exemption, reducing tariffs to 0%~5%.
Recommend Applying for Advance Ruling to avoid clearance risks.
📣 Immediate Action:
📞 Contact Professional Customs Broker + Provide Product Specs + Apply for HS Code Advance Ruling
🚀 Let Your Paper Chemicals Clear Customs Smoothly, Efficiently Go Global, and Maximize Profits!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Cent of Your Cost Deserves Precise Calculation!
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.