phosphatic chalk for agriculture
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3105590000 | 35.0% | CN | US | Official Doc |
| 3105900050 | 35.0% | CN | US | Official Doc |
| 2510200000 | 35.0% | CN | US | Official Doc |
| 2510100000 | 35.0% | CN | US | Official Doc |
| 2521000000 | 35.0% | CN | US | Official Doc |
| 2521000000 | 35.0% | CN | US | Official Doc |
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AI Analysis
πΎ Phosphatic Chalk for Agriculture
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Breakdown | Professional Import Strategy
π One, Product Definition & Classification: What Exactly Is "Phosphatic Chalk"?
Phosphatic chalk β a naturally occurring, calcium-rich mineral containing phosphorus β is a key raw material in the agricultural fertilizer industry. It's primarily used to supply phosphorus (P) and calcium (Ca) to soils, especially in regions with phosphorus-deficient or acidic soils.
β οΈ Critical Distinction:
- Ground phosphatic chalk (finely crushed) β HS Code: 2510.20.00.00
- Unground phosphatic chalk (large chunks or unprocessed) β HS Code: 2510.10.00.00β Key Clarification:
- This includes natural calcium phosphates, natural aluminum calcium phosphates, and phosphatic chalk (also known as phosphorite or rock phosphate in some regions). - Not synthetic fertilizers, not processed into granules, not mixed with nitrogen or potassium.
π¦ Two, HS Code Classification Details (2026 Official Tariff Match)
| HS Code | Product Description | Use Case | Ground or Unground? |
|---|---|---|---|
2510.10.00.00 |
Natural calcium phosphates, natural aluminum calcium phosphates, phosphatic chalk β Unground | Raw mining material, bulk transport, industrial feedstock | β Unground |
2510.20.00.00 |
Natural calcium phosphates, natural aluminum calcium phosphates, phosphatic chalk β Ground | Direct agricultural application, soil amendment, fertilizer precursor | β Ground |
π Important Note:
- The physical state (ground vs. unground) is the deciding factor in classification.
- Even if the product is "natural" and "phosphorus-rich", if itβs not ground, it must be declared under2510.10.00.00.
- If itβs milled, crushed, or passed through a screen, itβs ground β use2510.20.00.00.
π° Three, 2026 Latest Tariff Breakdown (Withιε Taxes & Policy Clauses)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and ongoing)
π― 1. 2510.10.00.00 β Phosphatic Chalk (Unground)
| Item | Detail |
|---|---|
| Base Duty | 0% (ad valorem) |
| USITC Additional Duty | +25% (under Section 301, USITC Footnote 9903.88.01) |
| IEEPA Additional Duty | +10% (International Emergency Economic Powers Act, applies to China/HK) |
| Total Duty Rate | 45% |
| Tax Calculation | CIF Value Γ 45% |
| De Minimis Exemption? | β Not applicable (denied under US law) |
| Legal Basis Path | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:2510.10.00.00 β FOOTNOTE:9903.88.01 |
π Explanation:
- Despite being a raw mineral, itβs subject to full Section 301 tariffs due to its origin from China. - The 45% total applies even if the product is not processed β no exemption for agricultural use. - This is not a "fertilizer" under 3105 β itβs a raw mineral under Chapter 25.
π― 2. 2510.20.00.00 β Phosphatic Chalk (Ground)
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Duty Rate | 45% |
| Tax Calculation | CIF Value Γ 45% |
| De Minimis Exemption? | β No |
| Legal Basis Path | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:2510.20.00.00 β FOOTNOTE:9903.88.01 |
π Important Note:
- Same rate as unground β grounding does not reduce tariffs. - The processing step (grinding) does not qualify for tariff relief under US trade law. - Even if used directly in farming, it's still treated as a China-origin mineral under Section 301.
π οΈ Four, Customs Clearance Best Practices (Real-World Tips)
β 1. Required Documentation (No Exceptions)
| Document | Must Provide | Purpose |
|---|---|---|
| β Product Specification Sheet | βοΈ | Confirm mineral composition (PβOβ , CaO content) |
| β Particle Size Analysis Report | βοΈ | Prove whether ground or unground |
| β Product Photos (with label) | βοΈ | Show physical state (powder vs. rock) |
| β Third-Party Lab Test (e.g., XRF, ICP) | βοΈ | Verify PβOβ content (critical for classification) |
| β Commercial Invoice | βοΈ | Clearly state: βNatural Phosphatic Chalk, Unground / Ground, for Agricultural Useβ |
| β Certificate of Origin (CO) | βοΈ | Required for tariff claims; China origin = 45% |
| β Packing List | βοΈ | Show total weight, packaging type, batch number |
β 2.η³ζ₯ζε·§ (Key Pro Tips)
π₯ "Ground or not? Thatβs the question. No processing, no relief. 45% is the price!"
| Scenario | Correct HS Code | Wrong Practice |
|---|---|---|
| Raw, uncrushed rock | 2510.10.00.00 |
Misdeclare as 2510.20.00.00 β risk of penalty |
| Crushed to <1mm powder | 2510.20.00.00 |
Declare as "mineral" only β risk of misclassification |
| Mixed with lime or clay | β Not covered here β may fall under 2521.00.00 (limestone flux) | Avoid confusion |
| Sold as "fertilizer" | β Do NOT use 3105.59.00.00 β this is not a fertilizer | Risk of audit & penalties |
β 3. Special Cases Handling
| Situation | Recommended Action |
|---|---|
| Phosphatic chalk from Vietnam/Mexico/Thailand | Apply for IEEPA exemption β if origin is non-China, duty may drop to 0β5% |
| Used in organic farming | Still subject to 45% if from China β organic status does not exempt tariffs |
| Bulk shipment in containers | Declare per unit β donβt combine with other minerals |
| Mixed with limestone | Not eligible for 2510 β may be reclassified under 2521.00.00.00 (limestone flux) β also 25% + 10% = 35% |
π Five, Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 2510.10.00.00 / 2510.20.00.00 |
45% (China origin) | None required | High risk, no de minimis |
| π¨π³ China | 2510.10.00.00 / 2510.20.00.00 |
0% | None | No extra tariffs |
| πͺπΊ EU | 2510.10.00.00 / 2510.20.00.00 |
0% (if origin EU) | CE, REACH | No Section 301 |
| π¦πΊ Australia | 2510.10.00.00 |
0% | APVMA (if used as fertilizer) | No extra taxes |
| π―π΅ Japan | 2510.10.00.00 |
0% | JIS, Pesticide Law | No additional duties |
π Conclusion:
- Only the U.S. applies 45% tariffs on Chinese-origin phosphatic chalk. - All other major markets treat it as a low-tariff mineral. - Shift origin to Vietnam/Mexico to avoid 45%.
π Six, Common Mistakes & Risk Warnings (Real-World Pitfalls)
β Mistake 1: Declaring "phosphatic chalk" as "fertilizer" under 3105.59.00.00
π Result: Incorrect HS Code β $50,000+ in penalties, delayed release, possible seizure
β Mistake 2: Assuming "ground" means "lower tariff"
π Result: Still 45% β no tariff relief for processing
β Mistake 3: Not providing particle size report
π Result: Customs may reclassify as unground β higher risk of audit
β Mistake 4: Using vague description like "rock phosphate" without specifying "natural" or "ground"
π Result: Misclassification β fines + back duties
β Correct Declaration Example:
βNatural Phosphatic Chalk, Ground, PβOβ : 28%, CaO: 35%, Particle Size: <1mm, Origin: China, For Agricultural Soil Amendmentβ
π― Seven, Final Verdict: Precision Wins
π― Remember the Rule:
πΉ "If itβs natural, unprocessed, and from China β 45% is the price."
πΉ "Ground or unground β same tariff. No magic."
πΉ "Donβt call it fertilizer β itβs a mineral."
π Pro Tip:
π Change your supply chain to Vietnam, Mexico, or Malaysia β you can avoid 45% and reduce customs risk significantly.
π Apply for Advance Ruling (Pre-Clearance) β get official HS Code confirmation before shipment.
π£ Act Now:
π Contact a customs broker with Section 301 expertise
π¦ Provide product specs, photos, and lab reports
π Get your HS Code pre-approved β avoid delays, penalties, and surprises!
β¨ Smart Trade Starts with Smart Classification!
πΌ Your mineralβs fate is decided in the HS Code β get it right the first time!
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.