Chlorinated Adhesive Solution

CN → US

HS编码	关税税率	原产国	目的国	文档
3901909000	41.5%	CN	US	官方文档
3824100000	41.0%	CN	US	官方文档
3901302000	35.0%	CN	US	官方文档
3824992900	41.5%	CN	US	官方文档
3506915000	37.1%	CN	US	官方文档

商品图片

AI分析

🧪 Chlorinated Adhesive Solution

🌐 HS Code Classification & Tariff Guide | 2026 Updated | Expert Customs Clearance Strategy
📌 One Product, Five Classifications — Why So Many HS Codes? Let’s Break It Down!

🔍 You’re importing a chlorinated adhesive solution?
It might seem like one simple product — but in U.S. customs, its classification depends entirely on chemical composition, intended use, and physical form.

⚠️ Mistake this once — 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 — using only the data you provided.

📦 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 → 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) → 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 → 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 — it’s 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 → fits specialty adhesive category	General industrial bonding, high-performance adhesives

✅ Key Insight:
- Same product, different uses → 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

💰 2. Tariff Breakdown: What Do Those 41.5% and 35% Really Mean?

✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: 2025–2026 (current tariff regime)

🎯 1. `3901.90.90.00` – 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 — targeting Chinese goods deemed unfair trade practices
Section 122 (IEEPA) Additional Duty	10.0%	From International Emergency Economic Powers Act (IEEPA) — applies to goods from China/Hong Kong due to national security concerns
Total Effective Tariff	41.5%	CIF Value × 41.5%

🔍 Legal Pathway:
IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3901.90.90.00 → FOOTNOTE:9903.88.01

🎯 2. `3824.10.00.00` – 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 — applies to all Chinese-origin goods under 301
Section 122 (IEEPA) Additional Duty	10.0%	Same as above — no exemption for foundry use
Total Effective Tariff	41.0%	Slight reduction due to lower base rate

🔍 Why 41.0%?
- Foundry binders are not exempt from 301/IEEPA duties — even if used in manufacturing
- No "industrial use" exception in current U.S. tariff rules

🎯 3. `3901.30.20.00` – 35.0% Total Tariff

Component	Rate	Explanation
Basic Duty	0.0%	Zero base rate — because it’s 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 × 35% — lowest among all codes

✅ 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 — no base duty!

🎯 4. `3824.99.29.00` – 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`

📌 Why This Code?
- If your adhesive is a formulated mixture (not just raw polymer)
- Used in casting molds or cores → fits "other binder" category
- No base duty relief — so highest effective tariff

🎯 5. `3506.91.50.00` – 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 × 37.1%

✅ 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 → this may be the most accurate code

🛠️ 3. Customs Clearance Best Practices (Pro Tips!)

✅ 1. Documentation Checklist (Must-Have!)

Document	Required?	Why It Matters
✅ Product Specification Sheet	✔️	Proves chemical composition (e.g., EVA-Vinyl-Chlorinated-Vinyl copolymer)
✅ Formulation Chart / MSDS	✔️	Shows if it’s a ready-to-use mixture or raw polymer
✅ Lab Test Report	✔️	Confirms chlorination level, polymer type, viscosity, use case
✅ Commercial Invoice	✔️	Must clearly state "Chlorinated Adhesive Solution for Foundry Use" or "Industrial Bonding Agent"
✅ Packing List	✔️	Shows packaging, quantity, weight — avoids customs suspicion
✅ Certificate of Origin (CO)	✔️	If from China → 41.5% tariff applies; if from Vietnam/Mexico → possible IEEPA exemption
✅ Customs Broker Letter (Optional)	✔️	For pre-approval of HS code

✅ 2.申报技巧（申报口诀）

🔥 “用法定类别，结构定税基，配方看形态，税率差6%！”

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? → Audit risk
Copolymer in primary form	`3901.30.20.00`	`3506.91.50.00`	Pay 35% instead of 37.1% → save 2.1%
Chlorinated polymer, no specific use	`3901.90.90.00`	`3506.91.50.00`	Pay 41.5% instead of 37.1% → extra 4.4%

✅ 3. Special Cases & Risk Mitigation

Situation	Action
Product used in U.S. manufacturing	❌ No exemption — 301/IEEPA still apply
Product from Vietnam/Mexico	✅ Apply for IEEPA exemption — 0% tariff possible
Product is a mixture (not pure polymer)	✅ Use `3824.99.29.00` or `3506.91.50.00` — not 3901
Product contains EVA-Vinyl-Chlorinated-Vinyl	✅ Strong case for `3901.30.20.00` — 0% base duty
Unclear use case	✅ Apply for Advance Ruling (Pre-Approval) — avoid post-entry audit

🌍 4. Global Tariff Comparison (2026 Update)

Country	Recommended HS Code	Base Tariff	Additional Duties	Total
🇺🇸 USA	Depends on use	0–6.5%	25% + 10%	35%–41.5%
🇨🇳 China	`3901.30.20.00`	5%	None	5%
🇪🇺 EU	`3506.91.50.00`	0%	None	0%
🇦🇺 Australia	`3506.91.50.00`	5%	None	5%
🇯🇵 Japan	`3506.91.50.00`	0%	None	0%

📌 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

📌 5. Common Mistakes & Real-World Pitfalls

❌ Mistake 1:

"It’s just an adhesive — why does HS code matter?"
→ Wrong! 3901.30.20.00 saves 6.5% vs. 3901.90.90.00
Result: Paying 41.5% instead of 35% → $6,500 extra on $100k shipment

❌ Mistake 2:

"It’s used in foundry — so it must be 3824.10.00"
→ But if it’s a copolymer in primary form, 3901.30.20.00 applies → 0% base duty

❌ Mistake 3:

"No base duty → no need for documentation"
→ No! Customs still checks chemical structure — missing MSDS = audit risk

✅ 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"

🎯 6. Final Verdict: How to Win the Tariff Game

🔥 Golden Rule:
"The right HS code isn’t about what you think it is — it’s about what the law says it is."

✅ Best Strategy for 2026:

Analyze your product’s chemical structure → Is it a copolymer?
Determine its use → Foundry? General bonding?
Choose the code with the lowest base duty → 3901.30.20.00 is best if applicable
Get pre-approval → Apply for Advance Ruling
Consider origin shift → Vietnam/Mexico → IEEPA exemption possible

📣 Act Now: Don’t Let Tariffs Sink Your Profit!

📞 Contact a U.S. Customs Broker + Provide
- Full product specs
- MSDS / Lab report
- Use case statement

🚀 Get your HS Code pre-approved — avoid $10,000+ in overpayment!

✨ Pro Tip:

If your product is a copolymer with chlorinated vinyl, claim 3901.30.20.00 — 0% base duty = 35% total vs. 41.5% → save $6,500 per $100k shipment!

📌 Bottom Line:

HS Code isn’t just a number — it’s your profit margin.
🔍 Get it right. Pay less. Ship faster. Win big.

💼 Your product. Your tariff. Your control.
🚀 Master the HS Code — and master the market!

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关于 HS 编码归类

协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。

每个 HS 编码遵循以下层级结构：

章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
品目（4 位）——章内的更具体分类
子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码

正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。

从CN进口到US时，适用的关税税率可能包括：

最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
普通税率——适用于无贸易协定国家
贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税

本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。

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