结构件和部件
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7308906000 | 85.0% | CN | US | Official Doc |
| 8708998180 | 37.5% | CN | US | Official Doc |
| 8431499095 | 0.0% | CN | US | Official Doc |
| 8431499044 | 0.0% | CN | US | Official Doc |
AI Analysis
🏗️ Steel Structures & Mechanical Parts (Structural Units & Accessories)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: What are "Structures" and "Parts"?
In international trade, the terms "Structures" and "Parts" cover two distinct categories of industrial goods, each with specific classification rules based on their form, function, and material.
1. Steel Structures (Heading 7308): These are prefabricated or assembled components designed for use in buildings, bridges, towers, and other civil engineering works. This includes: * Columns, Pillars, Posts: Vertical load-bearing elements. * Beams, Girders: Horizontal structural elements. * Lattice Masts, Roofs, Frameworks: Support structures. * Prepared Plates/Rods: Metal components specifically shaped/prepared for structural assembly.
⚠️ Key Distinction:
- If it is a building itself (e.g., a modular office cabin), it goes to 9406.
- If it is a component of a building/structure made of iron/steel, it goes to 7308.
- Note: "Prepared for use in structures" is critical. Plain steel plates not specifically shaped for construction do not qualify here.
2. Mechanical Parts & Accessories (Headings 8708 & 8431): These are parts suitable for use solely or principally with specific machinery. * Automotive Parts (Heading 8708): Parts/accessories for motor vehicles (8701–8705). * Machinery Parts (Heading 8431): Parts for machinery of headings 8425–8430 (e.g., cranes, bulldozers, forklifts, excavators). Specifically includes parts for backhoes, shovels, clamshells, and draglines.
⚠️ Key Distinction:
- The part must be identifiable as belonging to a specific machine.
- If it is a general-purpose part (e.g., a common bolt not specifically designed), it may fall under different chapters.
- For Heading 8431, the part must be for earth-moving or lifting machinery.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority)
| HS Code | Product Description | Application Scenario | Material/Type |
|---|---|---|---|
| 7308.90.60.00 | Structures of iron/steel; Other: Other: Columns, pillars, posts, beams, girders... | Steel columns, beams, lattice masts for construction/bridges | Iron/Steel |
| 7308.90.95.90 | Structures of iron/steel; Other: Other: Other | Other structural components not specified above (e.g., specific brackets, frames) | Iron/Steel |
| 8708.99.81.80 | Parts & accessories of motor vehicles (8701–8705); Other parts & accessories: Other: Other | Generic auto parts not specifically listed elsewhere | Any Material |
| 8431.49.90.95 | Parts of machinery (8426, 8429, 8430); Of machinery of 8426/8429/8430: Other: Other | Parts for cranes, excavators, bulldozers (not specifically backhoes/shovels) | Any Material |
| 8431.49.90.44 | Parts of machinery (8426, 8429, 8430); Parts of backhoes, shovels, clamshells & draglines: Other: Other | Specific parts for backhoes, shovels, clamshells, draglines | Any Material |
🔍 Critical Reminder:
- HS 7308 requires the item to be prepared for use in structures. Simple steel bars not shaped for this purpose may not qualify.
- HS 8431 requires a specific match to machinery in 8425–8430. If the part is for a different machine, this code is incorrect.
- HS 8708 is a "basket" code for auto parts not otherwise specified. Ensure the part is indeed for a motor vehicle.
💰 III. 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Current rates apply as per latest USITC/USMCA regulations.
🎯 1. 7308.90.60.00 & 7308.90.95.90 —— Steel Structures
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% (ad valorem) |
| Section 301 Surtax | +25.0% (Steel, Aluminum, Copper Products Surcharge) |
| IEEPA Surtax | +50.0% (Specific surcharge for steel/aluminum/copper products from China under IEEPA) |
| Total Tariff Rate | 75.0% |
| Tax Calculation | CIF Value × 75% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis | USITC:7308.90.60.00 → Section 301 Footnote → IEEPA Steel/Aluminum Surtax |
📌 Explanation:
- Steel structures are heavily targeted due to trade tensions.
- The 75% total rate (0% base + 25% Section 301 + 50% IEEPA) is extremely high.
- Cost Impact: For every $100,000 worth of steel structures, you pay $75,000 in tariffs.
- Strategy: Consider sourcing from countries with FTAs (e.g., Canada, Mexico) if possible, or optimize supply chain to reduce US origin.
🎯 2. 8708.99.81.80 —— Automotive Parts (Other)
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% (ad valorem) |
| Section 301 Surtax | 0.0% |
| IEEPA Surtax | 0.0% |
| Total Tariff Rate | 0.0% |
| Tax Calculation | CIF Value × 0% |
| De Minimis Exemption | ✅ Eligible (if under $800) |
| Legal Basis | USITC:8708.99.81.80 (No additional surcharges listed in data) |
📌 Note:
- Many automotive parts have low or zero tariffs.
- Verify Specificity: Ensure the part is truly for a motor vehicle (8701–8705). If it’s for motorcycles or bicycles, the code changes.
🎯 3. 8431.49.90.95 & 8431.49.90.44 —— Machinery Parts
| Item | Content |
|---|---|
| Base Tariff Rate | Failed to retrieve tax information |
| Total Tax | Error |
| Tax Calculation | N/A (Requires further verification) |
| Legal Basis | USITC:8431.49.90.95 / 8431.49.90.44 |
⚠️ Critical Warning:
- Tax information for these codes is not available in the provided data.
- Action Required: You must consult the latest USITC Tariff Schedule or a licensed customs broker for accurate rates.
- General Trend: Machinery parts often have 0–5% base tariffs, but Section 301 surcharges (10–25%) may apply depending on the specific machinery type. Do not assume 0%.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance)
✅ 1. Documentation Checklist (Non-negotiable)
| Document | Mandatory | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail dimensions, weight, material (iron/steel), and intended use (e.g., "column for bridge"). |
| ✅ Technical Drawings | ✔️ | For steel structures, show how it is "prepared for use in structures." |
| ✅ Commercial Invoice | ✔️ | Must explicitly state "Steel Structure" or "Part for [Machine Model]," not vague terms like "metal parts." |
| ✅ Packing List | ✔️ | List each item with its HS Code if mixed shipment. |
| ✅ Certificate of Origin (CO) | ✔️ | Critical for steel structures to verify country of origin. |
| ✅ Third-Party Test Report | ✔️ | For machinery parts, prove compatibility with specific machinery (8425–8430). |
✅ 2. Declaration Tips (Key Mantras)
🔥 “Steel Structures: Specify ‘Prepared for Use’; Auto Parts: Specify ‘Vehicle Model’; Machinery Parts: Specify ‘Machine Heading’!”
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Steel Beams | "Steel Girders, Prepared for Structural Use, Heading 7308" | "Steel Beams" → May be misclassified as generic steel (higher tax). |
| Auto Part | "Bracket for Toyota Camry 2020, HS 8708.99.81.80" | "Auto Bracket" → Vague, may trigger manual review. |
| Excavator Part | "Hydraulic Cylinder for CAT 320 Excavator, HS 8431.49.90.95" | "Excavator Part" → Too vague; customs may reject. |
| Mixed Shipment | Split invoice by HS Code | "Mixed Metal Parts" → Leads to detention & penalties. |
✅ 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| Steel Structures with Coatings | Declare base material (iron/steel). Coatings do not change HS 7308 classification. |
| Machinery Parts for Multiple Models | Provide a matrix showing compatibility with machines under 8425–8430. |
| OEM Custom Parts | Provide client design files to prove specificity. |
| High-Value Steel Structures | Consider Advance Ruling to lock in the 75% tax rate and avoid disputes. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 7308.90.60.00 |
75% (Steel Structures) 0% (Auto Parts) Error (Machinery Parts) |
N/A | High tariff on steel. Verify machinery parts separately. |
| 🇪🇺 EU | 7308.90.60.00 |
~5–8% | CE (if applicable) | No Section 301 surcharges. |
| 🇨🇳 China | 7308.90.60.00 |
0–5% | N/A | Low export duty. |
| 🇲🇽 Mexico | 7308.90.60.00 |
0% (Under USMCA) | N/A | Best Option for US Market if manufactured in Mexico. |
📌 Conclusion:
- USA is the most challenging market for steel structures due to the 75% total tariff.
- Mexico or Canada (under USMCA) can significantly reduce costs for steel structures destined for the US.
- Machinery parts require careful verification as tax data is incomplete.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Steel Beams" without specifying "Prepared for Structural Use"
👉 Consequence: Misclassified as generic steel products → Higher tariffs & delays.
❌ Error 2: Using "Auto Part" for a part meant for industrial machinery
👉 Consequence: Incorrect HS Code (8708 vs. 8431) → Penalties & back taxes.
❌ Error 3: Assuming 0% tax for machinery parts without verification
👉 Consequence: Underpayment of duties → Seizure & fines.
❌ Error 4: Ignoring the 75% steel surcharge in cost calculations
👉 Consequence: Profit margin erosion → Project loss.
✅ Correct Practice:
"Hot-Rolled Steel I-Beam, Prepared for Bridge Construction, 10m Length, HS 7308.90.60.00"
"Hydraulic Pump Assembly for Backhoe Loader Model X, HS 8431.49.90.44"
🎯 VII. Conclusion: Professional Declaration, Save Time, Reduce Costs!
🎯 Remember the Mantras:
🔹 "Steel Structures: 75% Tax, Think Mexico/EU."
🔹 "Auto Parts: Check Specificity, Often 0%."
🔹 "Machinery Parts: Verify First, Error in Data!"
📌 Pro Tip:
For steel structures bound for the US, explore transshipment through Mexico or Canada if feasible, or apply for USMCA benefits.
For machinery parts, always request a Customs Ruling from CBP if tax data is unclear.
📣 Immediate Action:
📞 Contact a licensed customs broker.
📤 Provide detailed product specs & intended use.
🚀 Ensure smooth clearance, avoid 75% surprises, and protect your margins.
✨ Professional Clearance Starts with Accurate Classification!
💼 Every cent of tariff cost should be precisely calculated!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.