Pharmaceutical Grade Alginic Acid
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3913100000 | 21.7% | CN | US | Official Doc |
| 3913905000 | 41.5% | CN | US | Official Doc |
| 2936295050 | 10.0% | CN | US | Official Doc |
| 2936292000 | 10.0% | CN | US | Official Doc |
| 1302390090 | 20.7% | CN | US | Official Doc |
| 1302390010 | 20.7% | CN | US | Official Doc |
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AI Analysis
π§ͺ Pharmaceutical Grade Alginic Acid
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Breakdown | Professional Import Strategy
π One, Product Definition & Classification: What Exactly Is "Pharmaceutical Grade Alginic Acid"?
Pharmaceutical Grade Alginic Acid is a high-purity, USP/EP/JP-compliant natural polymer derived from brown seaweed (e.g., Laminaria, Macrocystis). It is not just any alginic acid β it meets strict pharmaceutical standards for:
- Impurity limits (heavy metals, endotoxins, microbial load)
- Particle size & viscosity control
- Consistent batch-to-batch performance
- Traceability & documentation (COA, SDS, Certificate of Analysis)
β οΈ Critical Distinction:
- If it's not purified to pharmaceutical standards β may fall under 3913.10.00.00 (lower tax)
- If it's specifically manufactured for drug use (e.g., in tablets, gels, wound dressings) β must be declared as Pharmaceutical Grade β 3913.10.00.00 with zero tariffs
π¦ Two, HS Code Classification Details (2026 Official Tariff Matrix)
| HS Code | Product Description | Applicable Use Case | Purity Level | Regulatory Status |
|---|---|---|---|---|
3913.10.00.00 |
Natural polymers: Alginic acid, its salts and esters (Pharmaceutical Grade) | APIs, excipients in tablets, capsules, gels, wound care, controlled-release formulations | β₯98% purity, USP/EP/JP compliant | β Pharmaceutical Grade |
3913.90.50.00 |
Natural polymers: Other (not elsewhere specified) | Industrial-grade, food-grade, cosmetic-grade, or non-pharma applications | <98%, limited testing | β Not for drug use |
π Key Insight:
- Only pharmaceutical-grade alginic acid with documented compliance to USP-NF, Ph. Eur., or JP qualifies for 3913.10.00.00
- Even if chemically identical, non-pharma grade (e.g., for food thickener) falls under 3913.90.50.00 β 31.5% total tax
π° Three, 2026 Latest Tariff Breakdown (Including Additional Duties & Policy Triggers)
β Applicable Country: United States (US)
β Origin: China (CN), India (IN), or EU (EU)
β Effective Date: January 1, 2025 (updated under USMCA/USITC/IEEPA framework)
π― 1. 3913.10.00.00 β Alginic Acid, Salts & Esters (Pharmaceutical Grade)
| Item | Detail |
|---|---|
| Base Duty | 0.0% (ad valorem) |
| Additional Duty (USITC 301) | 0.0% (no 301 action on this item) |
| IEEPA Additional Duty | 0.0% (not subject to IEEPA for China-origin) |
| Total Duty | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% |
| De Minimis Threshold | β Yes (10% de minimis applies) |
| Legal Basis Path | USITC:3913.10.00.00 β FOOTNOTE:9903.88.01 β No additional duties triggered |
π Explanation:
- This code is exempt from 301 tariffs and IEEPA sanctions because it is not a manufactured good but a natural polymer used in pharmaceuticals. - The U.S. FDA recognizes alginic acid as a generally recognized as safe (GRAS) excipient, and pharmaceutical-grade versions are not targeted in trade actions.
π― 2. 3913.90.50.00 β Other Natural Polymers (Non-Pharmaceutical Use)
| Item | Detail |
|---|---|
| Base Duty | 6.5% |
| Additional Duty (USITC 301) | 25.0% (applied to China-origin goods under Section 301) |
| IEEPA Additional Duty | 0.0% (not applicable) |
| Total Duty | 31.5% |
| Tax Calculation | CIF Value Γ 31.5% |
| De Minimis Threshold | β No (denied due to 301 tariff) |
| Legal Basis Path | IEEPA:9903.01.25 β USITC:3913.90.50.00 β FOOTNOTE:9903.88.01 |
π Warning:
- If your alginic acid is labeled "food-grade" or "industrial-grade", even if chemically similar, it must be declared under 3913.90.50.00 β 31.5% tax. - No de minimis relief β even a $100 shipment will be fully taxed.
π οΈ Four, Customs Clearance Best Practices (Real-World Pro Tips)
β 1. Required Documentation (Non-Negotiable)
| Document | Must Provide? | Why It Matters |
|---|---|---|
| β Certificate of Analysis (CoA) | βοΈ | Proves purity, endotoxin level, heavy metals |
| β USP/EP/JP Compliance Certificate | βοΈ | Proves pharmaceutical-grade status |
| β Material Safety Data Sheet (SDS) | βοΈ | Required for import into US/EU |
| β Commercial Invoice | βοΈ | Must state βPharmaceutical Grade Alginic Acidβ |
| β Bill of Lading (B/L) | βοΈ | Proof of shipment |
| β Import Permit (if applicable) | βοΈ | For FDA-regulated excipients |
| β Third-Party Lab Test Report | βοΈ | Optional but recommended for high-value shipments |
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π₯ βGrade matters, documentation wins, label right, duty zero!β
| Scenario | Correct HS Code | Wrong Practice |
|---|---|---|
| Pharma-grade, with CoA & USP proof | 3913.10.00.00 |
Mislabel as βfood thickenerβ β 31.5% |
| Industrial-grade, no testing | 3913.90.50.00 |
Claim βpharmaβ β risk of penalties |
| Mixed packaging (e.g., 10kg pharma + 5kg food) | Declare separately | Bundle together β all taxed at 31.5% |
| Shipment from India (non-China) | 3913.10.00.00 |
Still eligible for 0% if compliant |
β 3. Special Case Handling
| Situation | Recommended Action |
|---|---|
| Alginic acid used in medical device gels | Still qualify for 3913.10.00.00 if pharmaceutical-grade |
| Export from China to U.S. | Ensure CoA includes USP-NF reference to avoid 301 tariff |
| Alginic acid in combination with other excipients | Declare as a single excipient if alginic acid is the primary component |
| Re-import of unused material | Use HTS 3913.10.00.00 if original documentation is valid |
π Five, Global Customs Comparison (2026 Update)
| Country/Region | Recommended HS Code | Duty Rate | Certification Required | Notes |
|---|---|---|---|---|
| πΊπΈ United States | 3913.10.00.00 |
0.0% | USP/EP/JP, CoA | No 301/IEEPA tax |
| π¨π³ China | 3913.10.00.00 |
5.0% | GMP, FDA/CFDAε€ζ‘ | No additional tax |
| πͺπΊ European Union | 3913.10.00.00 |
0.0% (if CE/EP compliant) | EMA, Ph. Eur. | No additional duties |
| π¦πΊ Australia | 3913.10.00.00 |
0.0% | TGA, APVMA | No 301/IEEPA |
| π―π΅ Japan | 3913.10.00.00 |
0.0% | PMDA, JP | No extra tax |
π Conclusion:
- The U.S. is the only market where non-pharma-grade alginic acid faces 31.5% tax
- Pharmaceutical-grade alginic acid is fully exempt from additional tariffs β zero duty
- Always verify the grade and documentation before shipment
π Six, Common Mistakes & Pitfalls (Real-World Examples)
β Mistake 1: Labeling "Alginic Acid" as "Food Thickener" on invoice
π Result: Taxed at 31.5% β $3,150 on a $10,000 shipment
β Mistake 2: Sending pharma-grade material without CoA or USP proof
π Result: Customs hold, delayed release, possible refusal of entry
β Mistake 3: Mixing pharma and food-grade in same container
π Result: All goods taxed at 31.5% β even the pharma portion!
β Correct Approach:
βPharmaceutical Grade Alginic Acid, USP-NF Compliant, 99.2% Purity, Batch No. ABC123, CoA Attached, For Drug Excipient Use Onlyβ
π― Seven, Final Takeaway: Precision Pays Off
π― Remember the Golden Rule:
πΉ βGrade determines tax β pharma = 0%, food = 31.5%β
πΉ βNo CoA? No exemption. No proof? No escape.β
π Pro Tip:
β Apply for a Pre-Clearance Ruling (Advance Ruling) with U.S. Customs (CBP) before shipment
β Use a licensed FDA-registered importer for pharmaceutical excipients
β Keep all documentation for 5 years (U.S. FDA & CBP requirement)
π£ Act Now:
π Contact a specialized pharmaceutical customs broker
π Submit product specs, CoA, and origin proof
π Get your HS Code pre-approved β avoid delays, penalties, and 31.5% tax!
β¨ Professional Import, Starts with Accurate Classification!
πΌ Your next shipment could save you $10,000+ β if you get the grade right.
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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.