liquid
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 |
| 3901905501 | 41.5% | CN | US | 官方文档 |
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AI分析
🧪 Liquid (Liquids in Primary Forms)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Updated Tariff Analysis | Professional Import Strategy
📌 One: Product Definition & Classification – What Exactly Is “Liquid” in Trade?
In international trade, "Liquids" refer to substances in a fluid state at room temperature, typically transported or sold in bulk or primary forms such as raw polymers, monomers, or chemical intermediates. These are not yet processed into final consumer products.
For polymers of ethylene, the key distinction lies in whether they are:
- Homopolymers (pure ethylene chains), or
- Copolymers (ethylene combined with other monomers like propylene or butene).
⚠️ Critical Classification Rule:
- If the product is not a copolymer, and is not specifically listed, it falls under "Other" in the HS Code hierarchy.
- If it is ethylene copolymer, it must be classified separately — even if the copolymer contains only minor amounts of other monomers.
📦 Two: HS Code Classification Details (2026 Official Tariff Breakdown)
| HS Code | Product Description | Applicable Scenario | Copolymer? | Primary Form? |
|---|---|---|---|---|
3901.90.90.00 |
Polymers of ethylene, in primary forms: Other: Other: Other | General ethylene homopolymers not otherwise specified; bulk granules, pellets, or powder | ❌ No | ✅ Yes |
3901.90.55.01 |
Polymers of ethylene, in primary forms: Other: Other: Ethylene copolymers | Ethylene-based copolymers (e.g., with propylene, butene, etc.) | ✅ Yes | ✅ Yes |
🔍 Key Insight:
- The term “Other: Other: Other” in3901.90.90.00is a catch-all for ethylene polymers that don’t fit into more specific subcategories.
- Ethylene copolymers are excluded from this category and must be reported under3901.90.55.01, even if the co-monomer is <5%.
💰 Three: 2026 Updated Tariff Rate Breakdown (With Additional Duties & Policies)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (including future imports)
🎯 1. 3901.90.90.00 — Ethylene Polymers (General, Non-Copolymer)
| Item | Detail |
|---|---|
| Base Duty Rate | 6.5% (ad valorem) |
| Additional Tariff (Section 301) | +25.0% (from USITC Footnote 9903.88.01) |
| IEEPA Additional Duty | +0.0% (not applicable for this category) |
| Total Effective Duty | 31.5% |
| Tax Calculation | CIF Value × 31.5% |
| De Minimis Threshold | ❌ Not applicable (denied de minimis) |
| Legal Basis Path | USITC:3901.90.90.00 → FOOTNOTE:9903.88.01 → Section 301 Tariff List |
📌 Explanation:
- The 6.5% base duty is standard for non-essential plastics under the Harmonized Tariff Schedule (HTS).
- The +25% Section 301 tariff applies to all Chinese-origin chemical products listed under USITC’s "301 Investigation" on China’s industrial policies.
- No IEEPA (International Emergency Economic Powers Act) surcharge applies here — only Section 301 is active.
- Total: 31.5% — High tariff, especially for bulk polymer imports.
🎯 2. 3901.90.55.01 — Ethylene Copolymers (in Primary Forms)
| Item | Detail |
|---|---|
| Base Duty Rate | 0.0% |
| Additional Tariff (Section 301) | 0.0% |
| IEEPA Additional Duty | 0.0% |
| Total Effective Duty | 0.0% |
| Tax Calculation | CIF Value × 0.0% |
| De Minimis Threshold | ✅ Applicable (if value < $800, may qualify) |
| Legal Basis Path | USITC:3901.90.55.01 → No Footnote 9903.88.01 → Exempt from 301 Tariff |
📌 Why Zero Duty?
- Ethylene copolymers are exempt from the Section 301 tariff because they are considered technologically distinct and not direct substitutes for homopolymers.
- This reflects U.S. policy to encourage innovation in polymer chemistry and support advanced materials.
- No additional surcharges apply — even from China.
🛠️ Four: Customs Clearance Best Practices (Pro Tips to Avoid Penalties)
✅ 1. Required Documentation (Must-Have List)
| Document | Required? | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Include molecular weight, melt flow index (MFI), density, co-monomer type & % |
| ✅ Certificate of Origin (CO) | ✔️ | Critical for claiming exemption under 3901.90.55.01 |
| ✅ Material Safety Data Sheet (MSDS/SDS) | ✔️ | Required for chemical classification |
| ✅ Commercial Invoice | ✔️ | Must clearly state: “Ethylene Copolymer, in primary form, not homopolymer” |
| ✅ Lab Test Report | ✔️ | Confirm copolymer composition (e.g., via NMR or FTIR) |
| ✅ Packing List | ✔️ | Show packaging type (bags, drums, bulk containers) |
| ✅ Pre-arrival Notice (if using CBP’s ACE system) | ✔️ | Prevents delays at port |
✅ 2.申报技巧(Key Rules to Remember)
🔥 “Copolymer = Zero Duty, Homopolymer = 31.5% — Know Your Chemistry!”
| Scenario | Correct HS Code | Wrong Approach |
|---|---|---|
| Ethylene + 3% propylene (copolymer) | 3901.90.55.01 |
Misclassified as 3901.90.90.00 → 31.5% tax |
| Pure polyethylene pellets (no co-monomer) | 3901.90.90.00 |
Reported as copolymer → risk of penalty |
| Bulk granules from China | 3901.90.90.00 |
Must pay 31.5% unless exempt |
| Copolymer from Vietnam or Mexico | 3901.90.55.01 |
0% duty — huge savings! |
✅ 3. Special Cases & Risk Mitigation
| Situation | Recommended Action |
|---|---|
| Copolymer with unknown co-monomer | Request lab test before shipment — do not guess |
| Mixed batch (some copolymer, some homopolymer) | Split shipment — declare separately to avoid misclassification |
| Label says “ethylene polymer” but is copolymer | Do not rely on labels — verify via test report |
| Importing via third country (e.g., Vietnam) | Use CO from Vietnam — can qualify for 0% duty under 3901.90.55.01 |
| High-value shipment (>$10,000) | Apply for Advance Ruling (AR) — get official HS Code confirmation |
🌍 Five: Global Market Comparison (2026 Updated)
| Country/Region | Recommended HS Code | Tariff Rate | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 United States | 3901.90.90.00 or 3901.90.55.01 |
31.5% / 0.0% | None (unless hazardous) | China origin = 31.5% |
| 🇨🇳 China | 3901.90.90.00 |
5% | CCC (if applicable) | No extra tariffs |
| 🇪🇺 European Union | 3901.90.90.00 |
0% (if from non-China) | CE, REACH | No 301 tariffs |
| 🇦🇺 Australia | 3901.90.90.00 |
5% | RCM | No additional duties |
| 🇯🇵 Japan | 3901.90.90.00 |
0% | PSE | No extra charges |
📌 Takeaway:
- The U.S. is the only market with 31.5% duty on non-copolymer ethylene polymers from China.
- Switching origin to Vietnam/Mexico can save 31.5% — consider supply chain re-routing.
📌 Six: Common Mistakes & How to Avoid Them (Real-World Risks)
❌ Mistake 1: Declaring a copolymer as 3901.90.90.00
👉 Result: Pay 31.5% duty instead of 0% → loss of 31.5% margin
❌ Mistake 2: Using "ethylene polymer" on invoice without specifying copolymer status
👉 Result: Customs may assume homopolymer → audit risk, penalties
❌ Mistake 3: Not testing co-monomer content before shipment
👉 Result: Misclassification → seizure, fines, or return
❌ Mistake 4: Shipment from China labeled as “copolymer” without proof
👉 Result: Denial of exemption — 31.5% duty applied
✅ Correct Declaration Example:
"Ethylene-propylene copolymer, in primary form, bulk pellets, MFI: 2.0 g/10min, density: 0.905 g/cm³, co-monomer content: 3.2%, produced in China, test report attached, CO from China"
🎯 Seven: Conclusion – Precision in Classification = Profit Protection!
🎯 Remember the Golden Rule:
🔹 "If it’s a copolymer, use
3901.90.55.01— 0% duty!
🔹 If it’s pure polyethylene, use3901.90.90.00— 31.5% duty!
🔹 Don’t guess — test, verify, declare!
📌 Pro Tip:
✅ Apply for a Pre-Arrival Ruling (PAR) or Advance Ruling (AR) from U.S. CBP — get official confirmation of HS Code and duty rate before shipment.
✅ Use third-country manufacturing (Vietnam, Mexico, India) to bypass 31.5% tariff — huge cost savings.
📣 Act Now!
📞 Contact a licensed customs broker + provide test reports + CO + specs
🚀 Avoid surprise tariffs, reduce costs, and accelerate clearance!
✨ Smart Trade Starts with Smart Classification!
💼 Your next shipment could save thousands — if you get the HS Code right.
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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。