Specialized Dispersion Agent
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824991100 | 35.0% | CN | US | Official Doc |
| 3824991900 | 41.5% | CN | US | Official Doc |
| 3505100020 | 0.0% | CN | US | Official Doc |
| 3910000000 | 38.0% | CN | US | Official Doc |
| 3505100015 | 0.0% | CN | US | Official Doc |
AI Analysis
π§ͺ Specialized Dispersion Agent (Chemical Auxiliary)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy π I. Product Definition & Classification: Do You Know "Dispersion Agents"?
Dispersion agents are specialized chemical additives used to improve the stability, uniformity, and flowability of particles within a medium. In international trade, they are primarily classified under Chapter 38 (Miscellaneous Chemical Products) or Chapter 35 (Albuminoidal Substances, Starches, etc.), depending on their chemical composition and specific application (e.g., crystallization vs. paper processing).
Core Categories: 1. General Chemical Dispersion Agents: Synthetic organic/inorganic compounds used in crystallization or general industrial processes. 2. Paper Industry Dispersion Agents: Modified starches, dextrins, or right-side saccharides used to prevent fiber clumping and improve paper quality.
β οΈ Key Distinction Point: - If the agent is a general chemical preparation not specified elsewhere (e.g., for crystallization), it falls under 3824.99. - If the agent is based on modified starch/dextrin for papermaking, it falls under 3505.10. - If marketed as a functional additive classified as a "primary shape" chemical, it may fall under 3910.00.
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Composition Basis |
|---|---|---|---|
3824.99.11.00 |
Crystallization Dispersant; Unspecified Chemical Products | Crystallization processes, general chemical aids | General Chemical Preparation |
3824.99.19.00 |
Crystal Shape Cultivation & Chemical Preparations | Specific crystallization control, specialty chemicals | Specific Chemical Preparation |
3505.10.00.20 |
Paper Dispersant (Modified Starch/Dextrin) | Paper manufacturing, fiber dispersion | Modified Starch/Dextrin |
3910.00.00.00 |
Functional Additive (Primary Shape Chemical) | General chemical additive, plastic/chemical modifier | Primary Shape Chemical |
3505.10.00.15 |
Paper Dispersant (Dextrin/Other Modified Starch) | Paper manufacturing, specific starch derivatives | Dextrin/Right-Side Saccharide |
π Key Reminder: - Paper Dispersants containing modified starches must be declared under 3505.10, not 3824. Misclassification can lead to severe penalties. - General Dispersion Agents for non-paper applications typically fall under 3824. - Ensure the Commercial Invoice clearly states the chemical function (e.g., "for crystallization" vs. "for paper making") to support the HS Code.
π° III. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
β Applicable Country: United States (US) β Origin: China (CN) β Effective Time: From November 10, 2025 (including subsequent imports)
π― 1. 3824.99.11.00 ββ Crystallization Dispersant (Unspecified Chemical)
| Item | Content |
|---|---|
| Basic Tariff | 0.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| De Minimis Exemption | β Not Allowed (deny_de_minimis) |
| Legal Basis Path | USITC:3824.99.11.00 β Section 301 β Section 122 |
π Explanation: - This code is for unspecified chemical products used as dispersants. - The 0% base rate is offset by high surcharges due to US-China trade policies. - Total 35% is a significant cost factor.
π― 2. 3824.99.19.00 ββ Crystal Shape Cultivation & Chemical Preparations
| Item | Content |
|---|---|
| Basic Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Allowed (deny_de_minimis) |
| Legal Basis Path | USITC:3824.99.19.00 β Section 301 β Section 122 |
π Note: - Higher base rate (6.5%) compared to 3824.99.11.00. - Suitable for specialty chemical preparations with specific crystal shape control functions. - Total 41.5% makes this the most expensive option among general chemical dispersants.
π― 3. 3505.10.00.20 ββ Paper Dispersant (Modified Starch)
| Item | Content |
|---|---|
| Basic Tariff | 0.7Β’/kg (Specific Duty) |
| Section 301 Surcharge | +7.5% (Ad Valorem on value) |
| Section 122 Surcharge | +10.0% (Ad Valorem on value) |
| Total Tariff Structure | 0.7Β’/kg + 17.5% |
| Tax Calculation | (Weight in kg Γ $0.007) + (CIF Value Γ 17.5%) |
| De Minimis Exemption | β Not Allowed (deny_de_minimis) |
| Legal Basis Path | USITC:3505.10.00.20 β Section 301 β Section 122 |
π Explanation: - This code is for paper industry dispersants based on modified starch. - The specific duty (0.7Β’/kg) applies to the weight, while 17.5% applies to the value. - 17.5% ad valorem is significantly lower than the 25%+ rates for general chemicals.
π― 4. 3910.00.00.00 ββ Functional Additive (Primary Shape Chemical)
| Item | Content |
|---|---|
| Basic Tariff | 3.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff Rate | 38.0% |
| Tax Calculation | CIF Value Γ 38.0% |
| De Minimis Exemption | β Not Allowed (deny_de_minimis) |
| Legal Basis Path | USITC:3910.00.00.00 β Section 301 β Section 122 |
π Note: - Classification as a "primary shape chemical" or "functional additive" in Chapter 39. - Total 38.0% is still high due to Section 301 and 122 surcharges.
π― 5. 3505.10.00.15 ββ Paper Dispersant (Dextrin/Other Modified Starch)
| Item | Content |
|---|---|
| Basic Tariff | 0.7Β’/kg (Specific Duty) |
| Section 301 Surcharge | +7.5% (Ad Valorem on value) |
| Section 122 Surcharge | +10.0% (Ad Valorem on value) |
| Total Tariff Structure | 0.7Β’/kg + 17.5% |
| Tax Calculation | (Weight in kg Γ $0.007) + (CIF Value Γ 17.5%) |
| De Minimis Exemption | β Not Allowed (deny_de_minimis) |
| Legal Basis Path | USITC:3505.10.00.15 β Section 301 β Section 122 |
π Key Advantage: - Similar to
3505.10.00.20, this code offers the lowest effective tariff rate (17.5% + small specific duty). - Ideal for dispersants derived from dextrin or other modified starches used in paper manufacturing.
π οΈ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
β 1. Document Checklist (ηΌΊδΈδΈε―)
| Document | Mandatory | Explanation |
|---|---|---|
| β Product Spec Sheet | βοΈ | Must include chemical composition, CAS number (if applicable), and primary function. |
| β MSDS/SDS | βοΈ | Required for all chemical imports; must match the declared HS Code. |
| β Commercial Invoice | βοΈ | Must explicitly state the end-use (e.g., "for papermaking" vs. "for crystallization"). |
| β Packing List | βοΈ | Detailed weight breakdown for specific duty calculation (if applicable). |
| β Certificate of Origin | βοΈ | Essential for confirming China origin and applying surcharges. |
| β Test Report | βοΈ | Third-party lab report confirming starch/dextrin content (for 3505 codes). |
β 2. Declaration Tips (Key Mantra)
π₯ βFunction Determines Code, Starch Saves Money!β
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Dispersant for paper (starch-based) | 3505.10.00.15 or 3505.10.00.20 |
Declare as 3824 β 45% Tax! |
| Dispersant for crystallization | 3824.99.11.00 or 3824.99.19.00 |
Declare as 3505 β Rejected/Reclassification |
| Dispersant as primary shape | 3910.00.00.00 |
Declare as 3505 without proof of starch β Penalty |
| Mixed packaging (Dispersion + Solvent) | Declare as Single Product | Split declaration β Higher Total Tax |
β 3. Special Situation Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Dispersion | Provide client order + formula (if allowed) to prove function. |
| Starch Content > 50% | Strongly consider 3505 codes for lower tax rates. |
| Synthetic Polymer Base | Likely 3824 or 3910. Ensure high surcharges are budgeted. |
| Small Sample Imports | Still subject to de minimis denial for China origin. No exemption. |
π V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Remarks |
|---|---|---|---|---|
| πΊπΈ USA | 3505.10.00.20 |
17.5% + 0.7Β’/kg | None specific | Best for paper dispersants. High tax for 3824 (35-41.5%). |
| π¨π³ China | 3505.10.00.20 |
5% | None | Low import duty. |
| πͺπΊ EU | 3505.10 |
0% - 6.5% | REACH Registration | No Section 301/122 surcharges. |
| π¬π§ UK | 3505.10 |
0% - 5% | UKCA Mark | Post-Brexit rules apply. |
| π¦πΊ Australia | 3505.10 |
5% | AICIS Registration | No high surcharges. |
π Conclusion: - USA has the highest tariff burden for chemical dispersants due to Section 301 and 122. - Paper-based dispersants (3505) are significantly cheaper to import into the US than general chemical dispersants (3824). - If the product is starch-based, always use 3505 codes to save ~20% in taxes.
π VI. Common Mistakes & Pitfall Guide (Lessons Learned)
β Mistake 1: Declaring paper dispersant as 3824.99.11.00
π Consequence: Tax jumps from 17.5% to 35%. Double the cost!
β Mistake 2: Declaring general chemical dispersant as 3505 without starch evidence
π Consequence: Customs rejects declaration, reclassifies, and imposes penalties + back taxes.
β Mistake 3: Ignoring Section 122 surcharge π Consequence: Underestimated landed cost. 10% is applied on top of Section 301.
β Mistake 4: Not specifying CAS Number or Composition π Consequence: Customs inquiry delays. Release delayed by 5-10 days.
β Correct Practice:
"Paper Dispersion Agent, Modified Starch Derivative, CAS: XXX-XX-X, for Use in Papermaking, Net Weight: XX kg"
π― VII. Conclusion: Precise Classification, Save Costs, Ensure Compliance!
π― Remember the Mantra:
πΉ βStarch in Paper? Use 3505! Save 20%! β πΉ βGeneral Chemical? 3824 or 3910! Prepare for 35-45%!β πΉ βSection 301 + 122 = No De Minimis! Plan Ahead!β
π Pro Tip:
If your dispersant contains <50% starch, you cannot use
3505. Use3824and budget for 35-41.5%. Consider Advance Ruling from US CBP if the chemical nature is complex. For non-China origins (e.g., Thailand, Vietnam), tariffs may be 0% or lower. Evaluate supply chain options.
π£ Immediate Action:
π Contact a professional customs broker + Provide SDS + Apply for HS Code Advance Ruling π Let your dispersion agent clear smoothly, reduce costs, and boost profits!
β¨ Professional Clearance Starts with Accurate Classification! πΌ Every Cent of Tax Saved is Pure Profit!
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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.