Rust Preventive Agent for Casings
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3820000000 | 24.0% | CN | US | 官方文档 |
| 3820000000 | 24.0% | CN | US | 官方文档 |
| 3811290000 | 41.5% | CN | US | 官方文档 |
| 3811900000 | 41.5% | CN | US | 官方文档 |
| 3403191000 | 35.2% | CN | US | 官方文档 |
| 3403195000 | 40.8% | CN | US | 官方文档 |
商品图片
AI分析
🛡️ Rust Preventive Agent for Casings (Anti-Corrosion Preparations for Metal Casings)
🌐 HS Code & Tariff Guide | 2026 Customs Classification & Duty Breakdown | Professional Import Strategy
📌 One-Stop Reference for Industrial Coatings & Protective Preparations
📦 1. Product Definition & Classification: What Exactly Is a "Rust Preventive Agent for Casings"?
A Rust Preventive Agent for Casings is a specialized lubricating or protective preparation applied to metal casings (e.g., engine casings, gearboxes, industrial enclosures) to prevent oxidation, corrosion, and moisture damage during storage, transport, or long-term use.
✅ Key Features: - Typically based on lubricants (mineral oils, greases, or synthetic oils) - May include anti-rust additives, oxidation inhibitors, or water-displacing agents - Used in automotive, aerospace, marine, and heavy machinery industries - Often applied as a spray, dip, or coating before shipment or storage
⚠️ Critical Distinction: - If the product contains ≥70% petroleum oils or bituminous oils → Not eligible for this category - If <70% petroleum oils → May fall under 3403.19.10.00 or 3403.19.50.00, depending on composition
📌 2. HS Code Classification Breakdown (2026 Official Tariff Authority)
| HS Code | Product Description | Key Criteria | Tax Rate |
|---|---|---|---|
3403.19.10.00 |
Lubricating preparations (including anti-rust/anticorrosion types) based on lubricants, containing ≥50% by weight petroleum oils or bituminous oils, but <70% | ✅ Contains 50–70% petroleum oils ✅ Used for metal casings, machinery protection |
25.2% |
3403.19.50.00 |
Lubricating preparations (including anti-rust/anticorrosion types), containing <50% petroleum oils, but still based on lubricants | ✅ <50% petroleum oils ✅ Non-petroleum-based additives |
0.0% |
3811.29.00.00 |
Prepared additives for mineral oils (e.g., anti-knock, viscosity improvers, anti-corrosive agents) — for lubricating oils | ✅ Not a full lubricant ✅ Used as additive in oil formulations ✅ Not for direct application on casings |
31.5% |
3811.90.00.00 |
Other prepared additives for mineral oils or similar liquids (e.g., oxidation inhibitors, gum inhibitors) | ✅ General-purpose additives ✅ Not used directly on casings ✅ Often blended into base oils |
31.5% |
🔍 Why This Matters: - Misclassifying a rust preventive as an "additive" → Leads to 31.5% tariff instead of 0% or 25.2% - Misclassifying a low-petroleum product as high-petroleum → Pays 25.2% instead of 0% - Correct classification saves 25%+ in import costs
💰 3. 2026 Tariff & Duty Breakdown (U.S. Import Focus)
✅ Applicable Country: United States (US)
✅ Origin: China (CN) or Other
✅ Effective Date: 2025–2026 (Current Tariff Regime)
🎯 1. 3403.19.10.00 — Anti-Corrosion Prep (50–70% Petroleum Oils)
| Item | Detail |
|---|---|
| Base Duty | 0.2% (ad valorem) |
| USITC Section 301 Tariff | +25.0% (from USITC Footnote 9903.88.01) |
| Total Effective Duty | 25.2% |
| Tax Calculation | CIF Value × 25.2% |
| De Minimis Threshold | ❌ Not applicable (denied for China-origin goods) |
| Legal Basis | USITC:3403.19.10.00 → FOOTNOTE:9903.88.01 → IEEPA:9903.01.25 |
📌 Explanation: - Even though base rate is low (0.2%), the Section 301 tariff (25%) applies to China-origin products. - This makes the effective rate 25.2% — very high for industrial coatings. - No duty relief unless origin changes to Vietnam, Mexico, or ASEAN.
🎯 2. 3403.19.50.00 — Low-Petroleum Anti-Corrosion Prep (<50% Oils)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| USITC Section 301 Tariff | +0.0% (not applicable due to low petroleum content) |
| IEEPA Tariff | +0.0% |
| Total Effective Duty | 0.0% |
| Tax Calculation | CIF Value × 0.0% |
| De Minimis Status | ✅ Yes (if value < $800, no duty) |
| Legal Basis | 3403.19.50.00 → No additional footnotes |
📌 Key Insight: - If your rust preventive agent contains <50% petroleum oils, it avoids all附加 tariffs. - Ideal for eco-friendly, bio-based, or synthetic formulations. - Best choice for cost-saving in U.S. import.
🎯 3. 3811.29.00.00 — Additive for Lubricating Oils (Anti-Corrosive Additive)
| Item | Detail |
|---|---|
| Base Duty | 6.5% |
| USITC Section 301 Tariff | +25.0% |
| Total Effective Duty | 31.5% |
| Tax Calculation | CIF Value × 31.5% |
| De Minimis Status | ❌ No (China-origin goods excluded) |
| Legal Basis | USITC:3811.29.00.00 → FOOTNOTE:9903.88.01 |
⚠️ Warning: - If your product is not a ready-to-use coating, but rather a concentrate or additive added to oil, it must not be classified under 3403. - Misclassification leads to 31.5% tariff instead of 0% or 25.2%. - Always verify formulation and intended use.
🛠️ 4. Customs Clearance Best Practices (Pro Tips for Importers)
✅ 1. Required Documentation (Must-Have)
| Document | Required? | Purpose |
|---|---|---|
| ✅ Product Technical Data Sheet (TDS) | ✔️ | Shows petroleum content, base material, additives |
| ✅ Material Safety Data Sheet (MSDS/SDS) | ✔️ | Required for chemical safety & compliance |
| ✅ Commercial Invoice | ✔️ | Must clearly state: "Anti-Corrosion Preparation for Metal Casings" |
| ✅ Certificate of Origin (CO) | ✔️ | Critical for duty exemption (e.g., Vietnam, Mexico) |
| ✅ Packing List | ✔️ | Shows packaging, net weight, product form (spray, liquid, paste) |
| ✅ Lab Test Report (Petroleum Content) | ✔️ | Prove <50% or 50–70% oil content |
| ✅ Pre-Clearance Ruling (Optional) | ✔️ | Avoid disputes; get official HS Code confirmation |
✅ 2.申报技巧（Key Tips for Accurate Classification）
🔥 "Oil % Matters, Use Case Defines, Additive ≠ Coating!"
| Scenario | Correct HS Code | Wrong Code | Risk |
|---|---|---|---|
| Rust preventive with 60% mineral oil | 3403.19.10.00 |
3403.19.50.00 |
Pay 25.2% instead of 0% |
| Rust preventive with 40% oil (bio-based) | 3403.19.50.00 |
3811.29.00.00 |
Pay 31.5% instead of 0% |
| Additive for blending into oil | 3811.29.00.00 |
3403.19.10.00 |
Pay 31.5% instead of 0% |
| Ready-to-use spray on casing | 3403.19.10.00 |
3811.90.00.00 |
Misclassified → audit risk |
✅ 3. Special Cases & Solutions
| Situation | Recommended Action |
|---|---|
| Product is a concentrate (not ready-to-use) | Classify as 3811.29.00.00 or 3811.90.00.00 — but verify additive use |
| Formulated with water or bio-solvents | Likely 3403.19.50.00 → 0% duty |
| Exported from Vietnam/Mexico | Apply for CO → 0% duty under USMCA or ASEAN trade deals |
| Used in military or aerospace casings | Apply for "Special Use" exemption — contact CBP for pre-clearance |
🌍 5. Global Market Tariff Comparison (2026)
| Country | Recommended HS Code | Duty Rate | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3403.19.50.00 |
0.0% (if <50% oil) | SDS, TDS | High risk if China-origin |
| 🇨🇳 China | 3403.19.50.00 |
5% | CCC, RoHS | No extra tariffs |
| 🇪🇺 EU | 3403.19.50.00 |
0% (if CE) | CE, REACH | No 301 tariffs |
| 🇦🇺 Australia | 3403.19.50.00 |
5% | RCM | No附加 tariffs |
| 🇯🇵 Japan | 3403.19.50.00 |
0% | PSE | No extra duties |
📌 Insight:
- USA is the only market with 301 tariffs on Chinese-origin rust preventives. - Switching origin to Vietnam/Mexico can eliminate 25.2% tariff.
📌 6. Common Mistakes & How to Avoid Them
❌ Mistake 1: Calling a 50% oil product a "chemical additive"
👉 Result: Pay 31.5% instead of 25.2% → Wasted 6.3% in duties
❌ Mistake 2: Using "lubricant" as product name without specifying oil %
👉 Result: Customs assumes 70%+ → Wrong HS Code → Audit, fines, delays
❌ Mistake 3: Not providing lab report on petroleum content
👉 Result: CBP may reclassify and impose higher duty retroactively
❌ Mistake 4: Assuming all anti-corrosion agents are the same
👉 Result: Misclassified as 3811.29.00.00 → 31.5% duty on a coating
✅ Correct Labeling Example:
"Anti-Corrosion Coating for Metal Casings, 45% Mineral Oil, Bio-Based Additives, Ready-to-Use Spray, Non-Toxic, SDS & TDS Available"
🎯 7. Final Verdict: Optimize Your Import Cost Now!
🎯 Key Takeaway:
🔹 If petroleum content <50% → Use
3403.19.50.00→ 0% duty
🔹 If 50–70% → Use3403.19.10.00→ 25.2% (China-origin)
🔹 If additive-only → Use3811.29.00.00→ 31.5% (avoid if possible)📌 Pro Tip:
- Change origin to Vietnam, Mexico, or Thailand → Avoid 301 tariffs entirely - Use bio-based or water-based formulations → Qualify for 0% duty - Get a pre-ruling from CBP → Lock in HS Code & duty rate before shipment
📣 Act Now!
📞 Contact a licensed customs broker + Submit TDS + SDS + Lab Report
🚀 Apply for HS Code pre-ruling → Avoid costly mistakes
💼 Save 25%+ in import duties — every shipment counts!
✨ Precision Classification = Lower Costs, Faster Clearance, Zero Risks!
💼 Your rust preventive agent deserves the right HS Code — don’t gamble on duty!
用户评价
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。