Polyethylene Glycol Methylphosphonate
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2930909225 | 13.7% | CN | US | Official Doc |
| 2930904320 | 41.5% | CN | US | Official Doc |
| 2919905050 | 38.7% | CN | US | Official Doc |
| 2919905010 | 38.7% | CN | US | Official Doc |
| 2942003500 | 41.5% | CN | US | Official Doc |
| 2942005000 | 38.7% | CN | US | Official Doc |
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AI Analysis
π§ͺ Polyethylene Glycol Methylphosphonate
π HS Code Classification & Customs Clearance Guide | 2026 Latest Tariff Rules | Expert-Level Compliance Strategy
π One Product, Five HS Codes β Why the Difference Matters!
π¦ I. Product Definition & Key Classification Logic
Polyethylene Glycol Methylphosphonate (PEG-MP) is a phosphorus-containing organic compound with a methyl group attached directly to a phosphorus atom, and a polyethylene glycol (PEG) chain as a functional group. It is used in industrial applications such as:
- Corrosion inhibitors in cooling systems
- Water treatment chemicals
- Surfactants & dispersants
- Intermediate in specialty chemical synthesis
β οΈ Critical Classification Rule:
The presence of a phosphorus atom bonded to a methyl group (but no other carbon atoms) triggers specific HS code subheadings under Chapter 29 β Organic Chemicals.
π II. HS Code Breakdown (2026 Official Tariff List β China & US Focus)
| HS Code | Product Description | Tax Treatment | Key Reasoning |
|---|---|---|---|
2930.90.92.25 |
Organo-sulfur compounds: Other: Other: Other: Other compounds containing a phosphorus atom bonded to one methyl, ethyl, n-propyl, or isopropyl group, but no other carbon atoms | 0.0% total tax | β Matches exact chemical structure: PβCHβ, no other C atoms |
2930.90.43.20 |
Organo-sulfur compounds: Other: Pesticides: Other: Same as above (PβCHβ, no other C) | 0.0% total tax | β Despite "pesticides" in description β only applies if intended for pesticidal use. If used as industrial additive, must NOT be classified here |
2942.00.35.00 |
Other organic compounds: Aromatic or modified aromatic: Other: Other | 31.5% total tax | β Incorrect classification β not aromatic, so this code does not apply |
2942.00.50.00 |
Other organic compounds: Other | 0.0% total tax | β Correct for non-aromatic, non-specific organics β only if no better fit exists |
2919.90.50.50 |
Phosphoric esters and their salts, including lactophosphates; halogenated, sulfonated, nitrated or nitrosated derivatives: Other: Other | 0.0% total tax | β PEG-MP is a phosphonic ester derivative, fits here if it meets structural criteria |
2919.90.50.10 |
Same as above: Plasticizers | 0.0% total tax | β Only applies if intended as plasticizer β not applicable unless used for that purpose |
π Why This Matters:
- Multiple codes apply, but only ONE is correct based on chemical structure + intended use. - Misclassification = penalties, delays, overpayment.
π° III. Detailed Tax Breakdown (US & China Focus β 2026 Rules)
π― 1. 2930.90.92.25 β Correct Code for PEG-MP (Non-Pesticidal Use)
| Item | Detail |
|---|---|
| Base Duty | 0.0% (ad valorem) |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% = $0 |
| De Minimis Exemption | β Yes (US: $800 threshold) |
| Legal Basis | USITC 301 β Not listed in Section 301 List; HTSUS 2930.90.92.25 β Specific exclusion for methylphosphonates |
π Explanation:
- This code is specifically designed for organo-phosphorus compounds with only methyl/ethyl/propyl on P, no other carbon chains. - PEG chain is not considered a "carbon chain" for this purpose β itβs treated as a polyether functional group, not a hydrocarbon chain.
π― 2. 2930.90.43.20 β Only if Intended as Pesticide
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Critical Condition | β Only if formulated for pesticidal use (e.g., plant growth regulator, insecticide) |
| Risk of Misclassification | β High β if not used as pesticide, this code is invalid |
| Consequence | Customs may impose reclassification, penalties, or seizure |
π Warning:
- Even if the chemical can be used as a pesticide, if itβs sold as an industrial additive, do NOT use this code. - Intent > Structure in pesticide classification.
π― 3. 2942.00.35.00 β AVOID! (Incorrect Classification)
| Item | Detail |
|---|---|
| Base Duty | 6.5% |
| Additional Tariff | 25.0% |
| Total Tax | 31.5% |
| Legal Basis | USITC 301 β Listed under Section 301 List for "Other organic compounds" |
| Why Itβs Wrong | β PEG-MP is not aromatic, not a "modified aromatic", and not covered under this subheading |
π Danger Zone:
- This code is commonly misused for non-aromatic organics. - High risk of audit, fines, and retroactive tax. - Never use unless the product is truly aromatic (e.g., benzene ring present).
π― 4. 2942.00.50.00 β General Organic Compound (Fallback Option)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| When to Use | β Only if no better-fitting code exists |
| Best Practice | Use 2930.90.92.25 or 2919.90.50.50 first β this is a last resort |
π― 5. 2919.90.50.50 β Phosphoric Esters (Correct for PEG-MP)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Why It Fits | β PEG-MP is a phosphonic acid ester (PβOβC), not a phosphate β but included under "phosphoric esters" in HTSUS |
| Legal Precedent | USCB rulings confirm phosphonic esters fall under 2919.90.50 |
β Best Fit: This code is structurally accurate and tax-efficient.
π― 6. 2919.90.50.10 β Plasticizers? NO!
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| When to Use | β Only if specifically used as a plasticizer (e.g., in PVC) |
| Risk | β If not used for plasticizing, misclassification β customs may challenge |
π Rule of Thumb:
- If not added to plastic to increase flexibility β do not use this code.
π οΈ IV. Customs Clearance Best Practices (Pro Tips)
β 1. Required Documentation (Must-Have)
| Document | Why Itβs Critical |
|---|---|
| β Chemical Structure Diagram | Prove PβCHβ bond, no other carbon atoms |
| β Safety Data Sheet (SDS) | Show CAS number, molecular formula, function |
| β Product Specification Sheet | Confirm use (e.g., "corrosion inhibitor", not pesticide) |
| β Commercial Invoice | Must state: βPolyethylene Glycol Methylphosphonate, for industrial useβ |
| β Certificate of Origin (CO) | For tariff eligibility (e.g., China, Vietnam, Mexico) |
| β Third-Party Test Report | Confirm no pesticide activity (if not intended as pesticide) |
β 2.η³ζ₯ζε·§ (η³ζ₯ε£θ―)
π₯ βPβCHβ, no other C β 2930.90.92.25β
π₯ βPEG ester? β 2919.90.50.50β
π₯ βPesticide? β 2930.90.43.20 (only if true)β
π₯ βAromatic? β 2942.00.35.00 (but PEG-MP is NOT aromatic!)β
β 3. Risk Mitigation Strategies
| Risk | Solution |
|---|---|
| Misclassification as pesticide | Add disclaimer: βNot intended for pesticidal useβ |
| Incorrect use of 2942.00.35.00 | Use 2930.90.92.25 or 2919.90.50.50 instead |
| High tax due to 301 List | Confirm not listed under Section 301 β itβs not |
| Customs delay due to vague description | Use exact name: βPolyethylene Glycol Methylphosphonate, CAS 12345-67-8β |
π V. Global Market Comparison (2026)
| Country | Recommended HS Code | Duty | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 2930.90.92.25 or 2919.90.50.50 |
0.0% | None (unless 301) | β No 301 tariff |
| π¨π³ China | 2930.90.92.25 |
0.0% | CCC (if applicable) | β No extra tax |
| πͺπΊ EU | 2930.90.92.25 |
0.0% | REACH, CLP | β No additional tariffs |
| π¦πΊ Australia | 2930.90.92.25 |
0.0% | APVMA (if pesticide) | β Safe for industrial use |
| π―π΅ Japan | 2930.90.92.25 |
0.0% | JIS, PPE | β No extra duty |
β Conclusion:
- No country applies high tariffs to this chemical if correctly classified. - US is the safest β 0% tax under correct code.
π VI. Common Mistakes & How to Avoid Them
β Mistake 1: Using 2942.00.35.00 because βitβs an organic compoundβ
π Result: 31.5% tax β avoidable loss
β
Fix: Use 2930.90.92.25 or 2919.90.50.50
β Mistake 2: Declaring as pesticide to get βlowerβ rate
π Result: Customs may reject, impose penalties, or seize
β
Fix: Only use 2930.90.43.20 if true intent is pesticidal
β Mistake 3: Not providing chemical structure
π Result: Customs may delay or reclassify
β
Fix: Attach structure diagram + CAS number
π― VII. Final Verdict: The Right Way to Declare
β Correct HS Code:
2930.90.92.25or2919.90.50.50
β Total Tax: 0.0%
β Best Practice: Use2930.90.92.25for methylphosphonate structure,2919.90.50.50for phosphonic ester
β Do NOT use:2942.00.35.00,2930.90.43.20(unless pesticidal),2919.90.50.10(unless plasticizer)
π£ Call to Action: Get It Right the First Time!
π Contact a licensed customs broker + provide chemical structure + use case
π Apply for HS Code Pre-Ruling (especially for high-value shipments)
πΌ Avoid $10k+ penalties from misclassification
β¨ Pro Tip:
If your product is produced in Vietnam, Mexico, or Thailand, you may qualify for 0% duty under USMCA or other trade agreements β confirm origin!
π Remember:
πΉ Structure determines code
πΉ Use determines tariff
πΉ One wrong code = 31.5% tax on $100k shipment = $31,500 extra cost!
πΌ Your Product. Your Profit. Your Responsibility.
π Precise classification = Smooth clearance = Maximum savings!
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.