Construction Grade
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 6810110070 | 38.2% | CN | US | Official Doc |
| 6810910000 | 35.0% | CN | US | Official Doc |
| 3925900000 | 40.3% | CN | US | Official Doc |
| 3925200020 | 22.8% | CN | US | Official Doc |
| 7308909590 | 85.0% | CN | US | Official Doc |
| 7308906000 | 85.0% | CN | US | Official Doc |
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ποΈ Construction Grade Materials: HS Code Classification & Customs Clearance Guide
π HS Code Reference & Customs Strategy | 2026 Latest Tariff Analysis | Professional Entry Guide
π 1. Product Definition & Classification: What Exactly Is "Construction Grade"?
"Construction Grade" is not a single product but a category encompassing various materials used in building structures, infrastructure, and civil engineering. In international trade, these goods are strictly categorized based on their material composition (iron/steel, plastic, cement/concrete) and preparation for use.
β οΈ Critical Distinction:
- Prepared Structural Units: Components specifically shaped or prepared for assembly (e.g., beams, columns, bridge sections) β Chapter 73 (Iron/Steel) or Chapter 68 (Cement/Concrete).
- Finished Buildersβ Ware: Non-structural elements like doors, windows, or generic blocks β Chapter 39 (Plastics) or Chapter 68 (Cement).
- Prefabricated Buildings: Excluded from most structural codes; look to Heading 9406 (but note: the provided data excludes these).
π¦ 2. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description | Key Characteristics | Application Scenario |
|---|---|---|---|
7308.90.95.90 |
Structures of iron/steel (Other) | Non-specific steel structures, excluding prefabs | General steel frameworks, custom structures |
7308.90.60.00 |
Structural Units of Iron/Steel | Columns, pillars, posts, beams, girders | Load-bearing steel components, I-beams, H-beams |
3925.90.00.00 |
Builders' Ware of Plastics (Other) | Generic plastic construction materials | Non-specified plastic building parts |
3925.20.00.20 |
Doors/Windows Frames of Plastic | Plastic doors, windows, and frames | PVC windows, aluminum-plastic composite frames |
6810.11.00.70 |
Cement/Concrete Blocks & Bricks | Building blocks, bricks (Other) | Standard concrete masonry units, decorative blocks |
6810.91.00.00 |
Prefabricated Structural Components of Cement/Concrete | Prefab concrete elements for building/civil engineering | Precast concrete panels, beams, tunnel segments |
π Key Note:
- Steel Structures (7308...) are heavily taxed due to trade restrictions.
- Plastic Builders' Ware (3925...) has lower or zero tariffs, except for specific items like windows.
- Cement/Concrete (6810...) varies: generic bricks are tax-free, but prefabricated components face a 25% surcharge.
π° 3. 2026 Tariff Rate Breakdown (Including Surtaxes)
β Applicable Countries: United States (US)
β Country of Origin: China (CN)
β Effective Date: 2025-11-10 onwards
π― 1. Iron & Steel Structures (7308.90.95.90 & 7308.90.60.00)
| Item | Details |
|---|---|
| Base Tariff | 0.0% |
| Surtax | +25% (Section 301) |
| Additional Surtax | +50% (Steel, Aluminum, Copper Products Surtax) |
| Total Tax Rate | 75.0% |
| Tax Calculation | CIF Value Γ 75% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis | Steel/Aluminum/Copper Surtax: 50% + Section 301: 25% |
π Explanation:
- Steel construction materials face the highest combined tariff (75%).
- This includes both generic steel structures (7308.90.95.90) and specific structural units like beams/columns (7308.90.60.00).
- Cost Impact: Extremely high. Must be factored into pricing strategy.
π― 2. Prefabricated Concrete Components (6810.91.00.00)
| Item | Details |
|---|---|
| Base Tariff | 0.0% |
| Surtax | +25% (Section 301) |
| Total Tax Rate | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis | Section 301 Footnote |
π Note:
- Unlike generic bricks, prefabricated structural components (e.g., precast beams, panels) incur a 25% tariff.
- Ensure product description clearly states "prefabricated structural component" to avoid misclassification.
π― 3. Plastic Builders' Ware: Doors & Windows (3925.20.00.20)
| Item | Details |
|---|---|
| Base Tariff | 5.3% |
| Surtax | +7.5% |
| Total Tax Rate | 12.8% |
| Tax Calculation | CIF Value Γ 12.8% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis | Standard USITC Tariff + Surcharge |
π Note:
- Plastic doors and windows have a moderate tax burden.
- Generic plastic builders' ware (3925.90.00.00) is 0%, so precise classification is critical.
π― 4. Tax-Free Items: Generic Steel Structures? No. Generic Bricks? Yes.
| HS Code | Total Tax Rate | Notes |
|---|---|---|
3925.90.00.00 |
0.0% | Generic plastic builders' ware (not doors/windows) |
6810.11.00.70 |
0.0% | Generic cement/concrete blocks & bricks |
π Opportunity:
- If your product is a generic brick or non-specific plastic building part, it may be duty-free.
- Avoid labeling generic bricks as "prefabricated structural components" to maintain 0% rate.
π οΈ 4. Customs Clearance Practical Advice
β 1. Documentation Checklist
| Document | Required | Purpose |
|---|---|---|
| Product Specification Sheet | βοΈ | Define material, dimensions, preparation level |
| Technical Drawing | βοΈ | Show if item is "prepared for use" (e.g., drilled holes, cut shapes) |
| Commercial Invoice | βοΈ | Clearly state HS Code and product description |
| Packing List | βοΈ | Separate structural units from accessories |
| Certificate of Origin | βοΈ | Verify CN origin to apply correct surtaxes |
| Pre-Fabrication Proof | βοΈ | For concrete/steel, prove if "prefabricated" or "generic" |
β 2. Classification Tips
| Scenario | Correct HS Code | Incorrect HS Code | Risk |
|---|---|---|---|
| Steel beam with cut ends | 7308.90.60.00 |
7308.90.95.90 |
Both 75%, but specific code preferred |
| PVC Window Frame | 3925.20.00.20 |
3925.90.00.00 |
12.8% vs 0% β 12.8% extra cost |
| Concrete Block (generic) | 6810.11.00.70 |
6810.91.00.00 |
0% vs 25% β 25% extra cost |
| Prefabricated Concrete Panel | 6810.91.00.00 |
6810.11.00.70 |
25% vs 0% β 25% extra cost |
π₯ Golden Rule:
"Prepared for Use" = Structural Code (Higher Tax). "Generic" = Non-Structural Code (Lower/Zero Tax).
β 3. Special Cases
| Case | Recommendation |
|---|---|
| Mixed Containers | Separate steel, plastic, and concrete in documentation to avoid blanket high taxation |
| OEM Steel Structures | Provide engineering drawings to prove "prepared for use" |
| Plastic Windows with Aluminum Parts | If >50% plastic by weight/value, still 3925.20.00.20; otherwise, reconsider material classification |
| Prefabricated Buildings (Heading 9406) | Excluded from this data; verify separately as they may have different treatments |
π 5. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff (CN Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 7308.90.60.00 |
75.0% (Steel) | N/A | Highest tax burden |
| πΊπΈ USA | 6810.91.00.00 |
25.0% (Concrete) | N/A | Significant surcharge |
| πΊπΈ USA | 3925.20.00.20 |
12.8% (Plastic Windows) | N/A | Moderate tax |
| π¨π³ China | 7308.90.60.00 |
~6-10% | CCC | No Section 301 |
| πͺπΊ EU | 7308.90.60.00 |
~6-10% | CE | No Section 301 |
| π¬π§ UK | 7308.90.60.00 |
~6-10% | UKCA | Post-Brexit rules apply |
π Conclusion:
- USA imposes the highest tariffs on Chinese construction materials, especially steel (75%) and concrete (25%).
- Plastic items face moderate taxes.
- EU/UK/China have significantly lower tariffs, making them more cost-effective markets for Chinese exports.
π 6. Common Mistakes & Pitfalls
β Mistake 1: Classifying "prefabricated concrete beams" as "generic bricks"
π Consequence: 25% tax evasion risk + penalties if caught.
β Mistake 2: Labeling "plastic window frames" as "generic plastic builders' ware"
π Consequence: 12.8% tax underpaid β Customs audit + back taxes.
β Mistake 3: Assuming all steel structures are taxed the same
π Consequence: Misclassification leads to delays, even if rate is same.
β Mistake 4: Ignoring "Prepared for Use" criteria
π Consequence: Generic items shipped as "prepared" may still face 0% if correctly classified, but errors can trigger audits.
β Correct Practice:
"Steel H-Beam, 10m Length, Cut to Size, Prepared for Structural Assembly, Model XYZ, CN Origin"
π― 7. Conclusion: Precision Classification Saves Money!
π― Key Takeaways:
πΉ Steel Structures: 75% Tax β Avoid or Price Accordingly
πΉ Concrete Prefabs: 25% Tax β Justify Generic If Possible
πΉ Plastic Windows: 12.8% Tax β Acceptable Cost
πΉ Generic Bricks/Plastics: 0% Tax β Maximize Savings
π Pro Tip:
If your steel structures are shipped from Vietnam, Mexico, or Thailand, check for IEEPA Exemptions to reduce tariffs significantly.
Consider Advance Rulings for complex items like mixed-material structures.
π£ Next Steps:
π Consult a Customs Broker + Provide Technical Drawings + Apply for HS Code Advance Ruling
π Minimize Tariffs, Maximize Profit, Clear Customs Smoothly!
β¨ Professional Classification, Precision Clearance!
πΌ Every Percent Counts in Construction Trade!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.