Inorganic Agricultural Dispersant
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2836995050 | 10.0% | CN | US | Official Doc |
| 2836993000 | 36.7% | CN | US | Official Doc |
| 3105590000 | 35.0% | CN | US | Official Doc |
| 3105900050 | 35.0% | CN | US | Official Doc |
| 3824993990 | 35.0% | CN | US | Official Doc |
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πΎ Inorganic Agricultural Dispersant (ζ ζΊεδΈεζ£ε)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: What Exactly is an "Inorganic Agricultural Dispersant"?
An "Inorganic Agricultural Dispersant" is a chemical product used in agriculture to help other substances mix uniformly with water or soil. Based on the provided data, its classification is highly ambiguous and depends entirely on its chemical composition and primary function. It is not a simple, single-category item.
β οΈ Key Distinction Point:
- If it is a pure inorganic carbonate salt (e.g., Calcium Carbonate) used strictly as a chemical intermediate β Heading 2836.
- If it is a mixture containing Nitrogen and Phosphorus acting as a nutrient/food for plants β Heading 3105.
- If it is a generic inorganic compound mixture not specifically classified elsewhere β Heading 3824.
π¦ II. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description (Summary from Data) | Material Characteristic | Primary Function |
|---|---|---|---|
2836.99.50.50 |
Other Carbonates of Inorganic Nature | Inorganic salts, specifically carbonates | Chemical intermediate/material |
2836.99.30.00 |
Other Carbonates (Agro-use allowed) | Inorganic salts, inferred from name | Chemical preservation/agro-use |
3105.59.00.00 |
Fertilizers containing N & P | Contains Nitrogen & Phosphorus elements | Plant nutrition/fertilizer |
3105.90.00.50 |
Other Fertilizers (Agro-use) | Contains N, P, K or mineral/chemical nutrients | Plant nutrition/fertilizer |
3824.99.39.90 |
Mixed Inorganic Compounds | Mixture of two or more inorganic compounds | General chemical preparation |
π Critical Reminder:
- The term "Dispersant" is a functional description, but Customs classifies based on material composition.
- If it contains Nitrogen (N) and Phosphorus (P), it is almost certainly a Fertilizer (3105) and subject to high agricultural tariffs.
- If it is a pure inorganic salt (like Carbonate) without N/P, it falls under 2836 or 3824.
π° III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes)
β Applicable Country: USA (US)
β Origin: China (CN)
β Effective Date: Post-November 10, 2025 (Including subsequent imports)
π― 1. 2836.99.50.50 ββ Inorganic Carbonates (Pure Chemical)
| Item | Content |
|---|---|
| Base Tariff | 0.0% (Not explicitly listed, but implied low base compared to others) |
| Section 301 Tariff | 0.0% (No additional 25% listed in summary) |
| Section 122 Tariff | +10.0% |
| Total Tariff | +10.0% |
| Tax Calculation | CIF Value Γ 10% |
| Legal Basis | HS Code 2836.99.50.50 β Section 122 Rule |
π Explanation:
- This is the most tax-efficient classification if the product is purely an inorganic carbonate.
- Only the Section 122 tariff (10%) applies. No Section 301 (25%) tax is listed for this specific code in the provided data.
- Risk: If the product actually contains N/P, this classification is incorrect and will lead to penalties.
π― 2. 2836.99.30.00 ββ Inorganic Carbonates (Agro/Preservation Use)
| Item | Content |
|---|---|
| Base Tariff | 1.7% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tariff | 36.7% |
| Tax Calculation | CIF Value Γ 36.7% |
| Legal Basis | Base 1.7% + Section 301 (25%) + Section 122 (10%) |
π Explanation:
- If classified as a generic inorganic carbonate for preservation/agro-use, it faces significant taxes.
- The Section 301 tariff (25%) applies here, making it much more expensive than the.50variant.
π― 3. 3105.59.00.00 ββ Fertilizers (N & P Containing)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tariff | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| Legal Basis | HS Code 3105.59.00.00 β Section 301 & 122 Rules |
π Explanation:
- High Risk: If the product contains Nitrogen and Phosphorus, it is legally a fertilizer.
- Even though the base tariff is 0%, the Section 301 (25%) and Section 122 (10%) taxes push the total to 35%.
- Warning: Misclassifying a fertilizer as a chemical dispersant to avoid this tax is a common cause of customs audits.
π― 4. 3105.90.00.50 ββ Other Fertilizers
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tariff | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| Legal Basis | HS Code 3105.90.00.50 β Section 301 & 122 Rules |
π Explanation:
- Similar to the above, if the product is a mineral/chemical fertilizer with N, P, or K, it falls here.
- Total 35% tariff is standard for most fertilizers imported from China under current trade rules.
π― 5. 3824.99.39.90 ββ Mixed Inorganic Compounds
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Tariff | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tariff | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| Legal Basis | HS Code 3824.99.39.90 β Section 301 & 122 Rules |
π Explanation:
- This is a "catch-all" category for inorganic mixtures that don't fit neatly into 2836 or 3105.
- If your product is a complex blend of inorganic compounds (e.g., carbonate + silica + trace elements), it likely falls here.
- Total 35% tariff applies.
π οΈ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
β 1. Essential Documentation (Non-Negotiable)
| Document | Mandatory? | Explanation |
|---|---|---|
| β Certificate of Composition | βοΈ | Must list exact chemical percentages. Crucial for distinguishing between Fertilizer (3105) and Chemical (2836/3824). |
| β MSDS (Material Safety Data Sheet) | βοΈ | Proves physical/chemical properties. If it lists "Nutrient" or "Fertilizer," it triggers HS 3105. |
| β Product Specification Sheet | βοΈ | Details the "Dispersant" function vs. "Fertilizer" function. |
| β Proof of Non-Fertilizer Use | βοΈ | If claiming HS 2836 or 3824, provide docs showing it is not used as plant food. |
| β Commercial Invoice | βοΈ | Must match the HS Code description exactly. |
β 2. Declaration Strategy (Key Formulas)
π₯ βCheck N&P, Then Check Carbonate, Name Precisely, Tax Lowers!β
| Scenario | Correct Declaration | Incorrect Practice | Result |
|---|---|---|---|
| Product contains N & P | 3105.59.00.00 |
Declare as "Chemical Dispersant" | 35% Tax + Penalty for Misclassification |
| Pure Carbonate (No N/P) | 2836.99.50.50 |
Declare as "Fertilizer" | 10% Tax (Savings of 25%) |
| Mixed Inorganic Compounds | 3824.99.39.90 |
Declare as "Single Chemical" | 35% Tax |
| Preservative with Carbonate | 2836.99.30.00 |
Ignore tax details | 36.7% Tax (High) |
β 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| Is it a Fertilizer? | If the product label says "Fertilizer," "Plant Food," or lists N-P-K values, you must use HS 3105. Do not try to hide it as a chemical. |
| Is it a Carbonate? | If it is pure Calcium Carbonate or Sodium Carbonate, use HS 2836. Avoid HS 3824 to prevent "mixture" scrutiny. |
| Mixed Ingredients? | If itβs a blend, check if it meets the definition of "Fertilizer" (N+P). If yes, HS 3105. If no, and itβs a mix of inorganics, HS 3824. |
| Pre-Ruling Request | Highly recommended. Submit a sample and MSDS to CBP for an Advance Ruling to lock in the HS Code and avoid post-clearance audits. |
π V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 2836.99.50.50 (if pure carbonate) |
10% (Section 122) | None | Lowest tax option if legally pure carbonate. |
| πΊπΈ USA | 3105.xxxx (if fertilizer) |
35% (301+122) | None | Standard for agro-products with N/P. |
| πͺπΊ EU | Varies (often 3824 or 2836) | ~6.5% (MFN) | REACH | EU does not have Section 301/122 taxes. |
| π¨π³ China | Export HS Code | 0% (Most) | N/A | No export duty on most chemicals. |
π Conclusion:
- The USA is the only market with the 301 (25%) and 122 (10%) layered taxes.
- Accurate classification is critical: A 10% vs. 35% vs. 36.7% difference is massive for bulk agricultural imports.
- Pure Carbonates (2836.99.50.50) are the most tax-efficient if the product truly qualifies.
π VI. Common Errors & Pitfalls (Blood-Lesson Guide)
β Error 1: Calling a Fertilizer a "Dispersant" to avoid 35% tax
π Consequence: Customs audit, seizure, and back taxes + penalties.
π Fix: Check N/P content. If present, use 3105.
β Error 2: Using 3824 for a pure Carbonate
π Consequence: Missed opportunity for 10% tax rate.
π Fix: If pure inorganic carbonate, use 2836.99.50.50.
β Error 3: Ignoring Section 122 Tariff
π Consequence: Underpayment by 10%.
π Fix: All Chinese-origin goods in these categories face the +10% Section 122 tax.
β Error 4: Vague Description "Agricultural Chemical"
π Consequence: Customs assigns the highest possible tax rate due to ambiguity.
π Fix: Specify chemical composition: "Calcium Carbonate, 99% Pure, Inorganic Dispersant".
β Correct Practice:
"Inorganic Carbonate Dispersant, 99% Purity, No Nitrogen/Phosphorus, For Agricultural Soil Treatment, Model XYZ"
π― VII. Conclusion: Precise Classification Saves Money
π― Remember the Formula:
πΉ "Pure Carbonate? β 10% Tax"
πΉ "N & P Present? β 35% Tax"
πΉ "Mixture? β 35% Tax"
πΉ "Wrong Code? β Penalty + Back Tax"
π Tip:
If your product is a complex mixture but contains no N/P, consider if it can be legally classified as a pure carbonate (2836.99.50.50) to save 25%. Consult a customs broker for a Pre-Ruling.
π£ Immediate Action:
π Provide MSDS & Composition Analysis to your freight forwarder.
π Apply for CBP Advance Ruling to confirm HS Code.
π° Calculate Tax Savings: 35% vs. 10% is a 25% difference on CIF value!
β¨ Professional Clearance Starts with Precise Classification!
πΌ Every cent of tax saved is pure profit!
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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.