Cellulose Controlled Release Agent
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3913902090 | 40.8% | CN | US | Official Doc |
| 3913905000 | 41.5% | CN | US | Official Doc |
Product Images
AI Analysis
πΏ Cellulose Controlled Release Agent (Agricultural/Fertilizer Additive)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Resolution | Professional Compliance Strategy
π I. Product Definition & Classification: Is It "Chemical" or "Natural Polymer"?
A Cellulose Controlled Release Agent is typically a polymer-based additive used in agriculture (fertilizers, pesticides) or industry to slow down the release of active ingredients.
In international trade, the key classification challenge lies in distinguishing between Chemical Synthetic Polymers (Chapter 39, Part 1) and Natural/Modified Natural Polymers (Chapter 39, Part 2).
β οΈ Critical Distinction:
- If the product is a pure cellulose derivative (e.g., methyl cellulose, carboxymethyl cellulose) or a modified natural polymer (derived from natural sources like wood pulp, cotton linter, or algal acid) that retains its natural polymer characteristics, it often falls under Heading 3913.
- If it is a fully synthetic polymer (not derived from natural sources) or a mixed formulation where the polymer is not the primary characteristic, it might fall under other chemical headings.
- However, for "Controlled Release Agents" based on Cellulose (a natural polymer), customs authorities frequently classify them under 3913 if they are in primary forms (powders, flakes, liquids) and are considered "modified natural polymers" or "other natural polymers."
Based on the provided <DATA>, these products are classified under HS Code 3913.90, which covers:
"Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms."
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority)
| HS Code | Product Description | Applicable Scenario | Key Classification Criteria |
|---|---|---|---|
3913.90.20.90 |
Other: Polysaccharides and their derivatives Other | Cellulose-based agents (e.g., Hydroxypropyl methylcellulose, Carboxymethyl cellulose) used in controlled release formulations. | β Polysaccharide-based: Cellulose is a polysaccharide. Derivatives like MC, HPMC, CMC fall here. |
3913.90.50.00 |
Other: Other | Modified natural polymers that do not fit the "polysaccharide" definition or are other types of natural polymers (e.g., certain hardened proteins, though less likely for cellulose). | β Not Polysaccharide: Used if the product is a modified natural polymer but not a polysaccharide derivative. |
π Key Insight:
- Cellulose is chemically a polysaccharide. Therefore,3913.90.20.90is the most accurate classification for most cellulose-based controlled release agents.
-3913.90.50.00is a fallback for other modified natural polymers (e.g., gelatin derivatives) that are not polysaccharides.
π° III. 2026 Latest Tariff Rate Details (Including Additional Taxes & Policy Surcharges)
β Applicable Country: USA (US)
β Country of Origin: China (CN)
β Effective Date: From November 10, 2025 (for subsequent imports)
π― 1. 3913.90.20.90 ββ Polysaccharides and Their Derivatives (Other)
| Item | Content |
|---|---|
| Base Tariff Rate | 5.8% (ad valorem) |
| Additional Tariff (Section 301) | +25.0% (USITC Footnote 9903.88.01) |
| Total Tariff Rate | 30.8% |
| Tax Calculation | CIF Value Γ 30.8% |
| De Minimis Exemption Eligible? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3913.90.20.90 β FOOTNOTE:9903.88.01 |
π Explanation:
- Base Tariff (5.8%): Standard Most Favored Nation (MFN) rate for other natural polymers.
- Additional Tariff (25%): Applies to Chinese-origin goods under Section 301.
- Total (30.8%): High tariff burden. No de minimis exemption for shipments from China.
π― 2. 3913.90.50.00 ββ Other Modified Natural Polymers (Other)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% (ad valorem) |
| Additional Tariff (Section 301) | +25.0% (USITC Footnote 9903.88.01) |
| Total Tariff Rate | 31.5% |
| Tax Calculation | CIF Value Γ 31.5% |
| De Minimis Exemption Eligible? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3913.90.50.00 β FOOTNOTE:9903.88.01 |
π Note:
- If your cellulose-based agent is misclassified under this heading (e.g., if it's a complex mix not primarily polysaccharide), the tariff is 0.7% higher than the polysaccharide category.
- Stick to3913.90.20.90if the product is definitively a cellulose derivative.
π οΈ IV. Customs Clearance Practical Advice (Avoid Pitfalls)
β 1. Documentation Checklist (Essential)
| Document | Mandatory? | Description |
|---|---|---|
| β Certificate of Origin | βοΈ | Must indicate China origin to confirm tariff applicability. |
| β Product Specification Sheet | βοΈ | Clearly state: "Cellulose Derivative," "Polysaccharide Structure," "Non-Synthetic." |
| β Chemical Analysis Report | βοΈ | From a third-party lab (e.g., SGS, BV) proving it is a modified natural polymer (not fully synthetic). |
| β Bill of Lading / Commercial Invoice | βοΈ | Must match HS Code 3913.90.20.90 and description "Cellulose Derivative." |
| β Safety Data Sheet (SDS) | βοΈ | To confirm non-hazardous nature for agricultural use. |
β 2. Declaration Tips (Key Mantra)
π₯ "Cellulose is Natural, Polysaccharide is Key! Declare Derivative, Avoid Synthetic Trap!"
| Scenario | Correct Declaration | Wrong Declaration |
|---|---|---|
| Pure Cellulose Derivative | 3913.90.20.90 - "Carboxymethyl Cellulose, Polysaccharide Derivative" |
"Chemical Polymer" β Could be misclassified as 3906/3907 (higher scrutiny). |
| Mixed Fertilizer Additive | Declare as Polysaccharide Derivative if >50% by weight. | Declare as "Fertilizer" (Heading 31) β Risk of Rejection if polymer is primary component. |
| Synthetic Polymer Agent | 3906.90 or 3907.99 |
3913.90 β Customs Dispute if not natural-derived. |
β 3. Special Considerations
| Situation | Handling Advice |
|---|---|
| OEM/White Label Products | Ensure the supplier provides a Letter of Guarantee stating the product is a modified natural polymer, not a synthetic plastic. |
| Blended Products | If the agent is mixed with other chemicals, declare the primary component. If cellulose is main, use 3913.90.20.90. |
| Pre-Clearance Ruling | Highly recommended to apply for an Advance Ruling from US CBP to confirm 3913.90.20.90 classification for your specific formulation. |
π V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3913.90.20.90 |
30.8% (5.8% + 25%) | None (Non-Hazardous) | High tariff due to Section 301. |
| π¨π³ China | 3913.90.20.90 |
5.8% (Import) | None | Lower entry barrier for raw materials. |
| πͺπΊ EU | 3913.90.20.90 |
6.5% (MFN) | REACH Compliance | No Section 301 equivalent, but REACH registration needed. |
| π¦πΊ Australia | 3913.90.20.90 |
5.0% | AICIS Registration | Moderate tariff, regulatory compliance key. |
π Conclusion:
- The USA imposes the highest cost (30.8%) on cellulose-based controlled release agents from China.
- EU and Australia offer lower tariffs (~5-6.5%), but regulatory hurdles (REACH, AICIS) are significant.
π VI. Common Mistakes & Pitfalls (Lessons Learned)
β Mistake 1: Declaring "Cellulose" as "Synthetic Plastic" (3901-3914)
π Consequence: May face anti-dumping duties or higher scrutiny, though base tariff might be lower, the risk of audit is high.
β Mistake 2: Failing to Prove "Natural Origin"
π Consequence: CBP may reclassify as chemical preparation (3824.99) β Higher Tariff + Penalties.
β Mistake 3: Ignoring the "Polysaccharide" Subcategory
π Consequence: Using 3913.90.50.00 (31.5%) instead of 3913.90.20.90 (30.8%) β 0.7% extra cost unnecessarily.
β Correct Approach:
"Hydroxypropyl Methylcellulose (HPMC), Derived from Natural Cellulose, Primary Form: Powder, Used as Controlled Release Agent in Fertilizers."
π― VII. Conclusion: Professional Declaration, Cost Savings, Efficiency!
π― Remember the Mantra:
πΉ "Cellulose is Polysaccharide,
3913.90.20.90is King!"
πΉ "30.8% Total Tax in USA, Declare Accurately, Avoid Penalties!"
πΉ "Natural Origin Proof, SDS & Lab Report, Keep Your Shipment Moving!"
π Pro Tip:
If your cellulose agent is sourced from Vietnam, Thailand, or Malaysia, you may qualify for lower tariffs or exemptions under US trade agreements (e.g., ASEAN, GSP where applicable).
Recommendation: Apply for a CBP Advance Ruling before shipping to lock in the 3913.90.20.90 classification and avoid post-entry audits.
π£ Take Action Now:
π Contact a Professional Customs Broker + Provide Lab Analysis + Apply for Advance Ruling
π Ensure Smooth Clearance, Minimize Tariffs, Maximize Profit!
β¨ Professional Customs Compliance Starts with Precise Classification!
πΌ Every Penny 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.