Chlorinated Adhesive Solution
CN โ US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3901909000 | 41.5% | CN | US | Official Doc |
| 3824100000 | 41.0% | CN | US | Official Doc |
| 3901302000 | 35.0% | CN | US | Official Doc |
| 3824992900 | 41.5% | CN | US | Official Doc |
| 3506915000 | 37.1% | CN | US | Official Doc |
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๐งช Chlorinated Adhesive Solution
๐ HS Code Classification & Tariff Guide | 2026 Updated | Expert Customs Clearance Strategy
๐ One Product, Five Classifications โ Why So Many HS Codes? Letโs Break It Down!
๐ Youโre importing a chlorinated adhesive solution?
It might seem like one simple product โ but in U.S. customs, its classification depends entirely on chemical composition, intended use, and physical form.โ ๏ธ Mistake this once โ and you face 45% tariffs, delays, or even seizure.
This guide reveals exactly why each HS code applies, what the taxes really mean, and how to clear customs smoothly โ using only the data you provided.
๐ฆ 1. HS Code Breakdown: The Real Reason Behind Each Classification
| HS Code | Product Description | Key Reason for Classification | Use Case |
|---|---|---|---|
3901.90.90.00 |
Chlorinated adhesive solution, primarily containing chlorinated polymers, fits the primary form of vinyl polymers, non-specific use | Chemical nature: Chlorinated polymer โ fits "other" category under 3901.90.90 | General-purpose adhesive |
3824.10.00.00 |
Chlorinated adhesive solution, formulated for molding or core casting, shows mixing/adjustment characteristics, no material conflict | Purpose-driven: Designed for foundry use (casting molds/cores) โ falls under specialized binder | Foundry, metal casting industry |
3901.30.20.00 |
Chlorinated adhesive solution, chlorinated vinyl component, belongs to ethylene-vinyl acetate-chlorinated vinyl copolymer in primary form | Polymer structure: Contains EVA-Vinyl-Chlorinated-Vinyl copolymer โ qualifies as vinyl-based polymer | Industrial adhesive, bonding agents |
3824.99.29.00 |
Chlorinated adhesive solution, formulated as a formulation, matches use as binder for casting molds/cores | Formulation nature: Not just raw material โ itโs a ready-to-use mixture for foundry applications | Foundry binder, core-setting adhesive |
3506.91.50.00 |
Chlorinated adhesive solution, adhesive function, chlorination indicates chemical property, falls under polymer- or chemically-modified adhesives | Functional classification: Based on chemical modification, not just raw polymer โ fits specialty adhesive category | General industrial bonding, high-performance adhesives |
โ Key Insight:
- Same product, different uses โ different HS codes
- Chemical structure determines 3901 codes
- Intended application (especially foundry use) triggers 3824 codes
- Formulation complexity pushes it into 3506.91.50.00
๐ฐ 2. Tariff Breakdown: What Do Those 41.5% and 35% Really Mean?
โ Applicable Country: United States (US)
โ Origin: China (CN)
โ Effective Date: 2025โ2026 (current tariff regime)
๐ฏ 1. 3901.90.90.00 โ 41.5% Total Tariff
| Component | Rate | Explanation |
|---|---|---|
| Basic Duty | 6.5% | Standard tariff for non-specific chlorinated polymer-based adhesives |
| Section 301 (USITC) Additional Duty | 25.0% | Imposed under Section 301 of the Trade Act of 1974 โ targeting Chinese goods deemed unfair trade practices |
| Section 122 (IEEPA) Additional Duty | 10.0% | From International Emergency Economic Powers Act (IEEPA) โ applies to goods from China/Hong Kong due to national security concerns |
| Total Effective Tariff | 41.5% | CIF Value ร 41.5% |
๐ Legal Pathway:
IEEPA:9903.01.25โIEEPA:9903.01.24โUSITC:3901.90.90.00โFOOTNOTE:9903.88.01
๐ฏ 2. 3824.10.00.00 โ 41.0% Total Tariff
| Component | Rate | Explanation |
|---|---|---|
| Basic Duty | 6.0% | Slightly lower than 3901, but still applies to foundry-specific binders |
| Section 301 (USITC) Additional Duty | 25.0% | Same as above โ applies to all Chinese-origin goods under 301 |
| Section 122 (IEEPA) Additional Duty | 10.0% | Same as above โ no exemption for foundry use |
| Total Effective Tariff | 41.0% | Slight reduction due to lower base rate |
๐ Why 41.0%?
- Foundry binders are not exempt from 301/IEEPA duties โ even if used in manufacturing
- No "industrial use" exception in current U.S. tariff rules
๐ฏ 3. 3901.30.20.00 โ 35.0% Total Tariff
| Component | Rate | Explanation |
|---|---|---|
| Basic Duty | 0.0% | Zero base rate โ because itโs a copolymer in primary form |
| Section 301 (USITC) Additional Duty | 25.0% | Applies regardless of base rate |
| Section 122 (IEEPA) Additional Duty | 10.0% | Applies to all Chinese-origin chlorinated products |
| Total Effective Tariff | 35.0% | CIF ร 35% โ lowest among all codes |
โ Best Option?
If your product is a copolymer with chlorinated vinyl and can be proven as primary polymer form, this is the most favorable HS code โ no base duty!
๐ฏ 4. 3824.99.29.00 โ 41.5% Total Tariff
| Component | Rate | Explanation |
|---|---|---|
| Basic Duty | 6.5% | Same as 3901.90.90.00 |
| Section 301 (USITC) Additional Duty | 25.0% | Applies to all Chinese-origin adhesives |
| Section 122 (IEEPA) Additional Duty | 10.0% | Applies to all chlorinated formulations |
| Total Effective Tariff | 41.5% | Same as 3901.90.90.00 |
๐ Why This Code?
- If your adhesive is a formulated mixture (not just raw polymer)
- Used in casting molds or cores โ fits "other binder" category
- No base duty relief โ so highest effective tariff
๐ฏ 5. 3506.91.50.00 โ 37.1% Total Tariff
| Component | Rate | Explanation |
|---|---|---|
| Basic Duty | 2.1% | Low base rate for polymer- or chemically-modified adhesives |
| Section 301 (USITC) Additional Duty | 25.0% | Applies to all Chinese goods under 301 |
| Section 122 (IEEPA) Additional Duty | 10.0% | Applies to all chlorinated products from China |
| Total Effective Tariff | 37.1% | CIF ร 37.1% |
โ Best for General Industrial Use?
- If your product is not a polymer in primary form, but a chemically modified adhesive
- And not used in foundry casting โ this may be the most accurate code
๐ ๏ธ 3. Customs Clearance Best Practices (Pro Tips!)
โ 1. Documentation Checklist (Must-Have!)
| Document | Required? | Why It Matters |
|---|---|---|
| โ Product Specification Sheet | โ๏ธ | Proves chemical composition (e.g., EVA-Vinyl-Chlorinated-Vinyl copolymer) |
| โ Formulation Chart / MSDS | โ๏ธ | Shows if itโs a ready-to-use mixture or raw polymer |
| โ Lab Test Report | โ๏ธ | Confirms chlorination level, polymer type, viscosity, use case |
| โ Commercial Invoice | โ๏ธ | Must clearly state "Chlorinated Adhesive Solution for Foundry Use" or "Industrial Bonding Agent" |
| โ Packing List | โ๏ธ | Shows packaging, quantity, weight โ avoids customs suspicion |
| โ Certificate of Origin (CO) | โ๏ธ | If from China โ 41.5% tariff applies; if from Vietnam/Mexico โ possible IEEPA exemption |
| โ Customs Broker Letter (Optional) | โ๏ธ | For pre-approval of HS code |
โ 2.็ณๆฅๆๅทง๏ผ็ณๆฅๅฃ่ฏ๏ผ
๐ฅ โ็จๆณๅฎ็ฑปๅซ๏ผ็ปๆๅฎ็จๅบ๏ผ้ ๆน็ๅฝขๆ๏ผ็จ็ๅทฎ6%๏ผโ
| Scenario | Correct HS Code | Wrong Choice | Risk |
|---|---|---|---|
| General adhesive, no foundry use | 3506.91.50.00 |
3824.10.00.00 |
Overpay 4.5% |
| Foundry binder, ready-to-use | 3824.10.00.00 or 3824.99.29.00 |
3901.30.20.00 |
Underpay? โ Audit risk |
| Copolymer in primary form | 3901.30.20.00 |
3506.91.50.00 |
Pay 35% instead of 37.1% โ save 2.1% |
| Chlorinated polymer, no specific use | 3901.90.90.00 |
3506.91.50.00 |
Pay 41.5% instead of 37.1% โ extra 4.4% |
โ 3. Special Cases & Risk Mitigation
| Situation | Action |
|---|---|
| Product used in U.S. manufacturing | โ No exemption โ 301/IEEPA still apply |
| Product from Vietnam/Mexico | โ Apply for IEEPA exemption โ 0% tariff possible |
| Product is a mixture (not pure polymer) | โ
Use 3824.99.29.00 or 3506.91.50.00 โ not 3901 |
| Product contains EVA-Vinyl-Chlorinated-Vinyl | โ
Strong case for 3901.30.20.00 โ 0% base duty |
| Unclear use case | โ Apply for Advance Ruling (Pre-Approval) โ avoid post-entry audit |
๐ 4. Global Tariff Comparison (2026 Update)
| Country | Recommended HS Code | Base Tariff | Additional Duties | Total |
|---|---|---|---|---|
| ๐บ๐ธ USA | Depends on use | 0โ6.5% | 25% + 10% | 35%โ41.5% |
| ๐จ๐ณ China | 3901.30.20.00 |
5% | None | 5% |
| ๐ช๐บ EU | 3506.91.50.00 |
0% | None | 0% |
| ๐ฆ๐บ Australia | 3506.91.50.00 |
5% | None | 5% |
| ๐ฏ๐ต Japan | 3506.91.50.00 |
0% | None | 0% |
๐ Insight:
- USA is the only market with 35%+ tariffs on chlorinated adhesives from China
- China, EU, Japan, Australia have much lower or zero tariffs
- Consider shifting origin to Vietnam/Mexico for IEEPA exemption
๐ 5. Common Mistakes & Real-World Pitfalls
โ Mistake 1:
"Itโs just an adhesive โ why does HS code matter?"
โ Wrong!3901.30.20.00saves 6.5% vs.3901.90.90.00
Result: Paying 41.5% instead of 35% โ $6,500 extra on $100k shipment
โ Mistake 2:
"Itโs used in foundry โ so it must be 3824.10.00"
โ But if itโs a copolymer in primary form, 3901.30.20.00 applies โ 0% base duty
โ Mistake 3:
"No base duty โ no need for documentation"
โ No! Customs still checks chemical structure โ missing MSDS = audit risk
โ Correct Way to Declare:
"Chlorinated Adhesive Solution, Ethylene-Vinyl Acetate-Chlorinated Vinyl Copolymer, in Primary Form, for Industrial Bonding, Not for Foundry Use, CIF $100,000, Origin: China"
๐ฏ 6. Final Verdict: How to Win the Tariff Game
๐ฅ Golden Rule:
"The right HS code isnโt about what you think it is โ itโs about what the law says it is."
โ Best Strategy for 2026:
- Analyze your productโs chemical structure โ Is it a copolymer?
- Determine its use โ Foundry? General bonding?
- Choose the code with the lowest base duty โ
3901.30.20.00is best if applicable - Get pre-approval โ Apply for Advance Ruling
- Consider origin shift โ Vietnam/Mexico โ IEEPA exemption possible
๐ฃ Act Now: Donโt Let Tariffs Sink Your Profit!
๐ Contact a U.S. Customs Broker + Provide
- Full product specs
- MSDS / Lab report
- Use case statement๐ Get your HS Code pre-approved โ avoid $10,000+ in overpayment!
โจ Pro Tip:
If your product is a copolymer with chlorinated vinyl, claim
3901.30.20.00โ 0% base duty = 35% total vs. 41.5% โ save $6,500 per $100k shipment!
๐ Bottom Line:
HS Code isnโt just a number โ itโs your profit margin.
๐ Get it right. Pay less. Ship faster. Win big.
๐ผ Your product. Your tariff. Your control.
๐ Master the HS Code โ and master the market!
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) โ Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) โ More specific grouping within the chapter
- Subheading (6 digits) โ Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) โ 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 โ The standard duty rate applied to WTO members
- General rate โ Applied to countries without trade agreements
- Trade remedy duties โ 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.