Acid and Alkali Resistant Mortar
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 6810990040 | 35.0% | CN | US | Official Doc |
| 6810990020 | 35.0% | CN | US | Official Doc |
AI Analysis
ποΈ Acid and Alkali Resistant Mortar (Acid and Alkali Resistant Mortar)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π 1. Product Definition and Classification: Do You Really Understand "Acid and Alkali Resistant Mortar"?
Acid and Alkali Resistant Mortar is a specialized construction material primarily used in chemical plants, wastewater treatment facilities, and industrial flooring. Its key characteristic is resistance to corrosive environments. In international trade, it is typically classified as an article of cement, concrete, or artificial stone.
Key Distinction for Classification: * Agglomerated Quartz Slabs: If the product is a pre-fabricated slab used for countertops (e.g., kitchen/bathroom) with specific dimensions (length β₯ 3m, width β₯ 1.25m), it may fall under a different subheading. * Other Articles: For general-purpose mortar, tiles, or slabs not meeting the specific "countertop slab" criteria, or other shapes/sizes, it falls under "Other articles".
β οΈ Critical Classification Point:
- If it is a pre-cut agglomerated quartz slab specifically for countertops with dimensions β₯ 3m length AND β₯ 1.25m width β HS Code 6810.99.00.20
- If it is any other form (including slabs of smaller size, bricks, or general mortar articles) β HS Code 6810.99.00.40
π¦ 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Dimensions/Type Condition |
|---|---|---|---|
6810.99.00.20 |
Agglomerated quartz slabs of the type used for countertops: In slabs of rectangular shape, with a length of 3 m or more and a width of 1.25 m or more | Large-scale countertop projects, industrial countertops | β Large Slabs (Lβ₯3m, Wβ₯1.25m) |
6810.99.00.40 |
Agglomerated quartz slabs of the type used for countertops: Other | Smaller slabs, non-countertop uses, bricks, other shapes | β Other/Standard (Does not meet Lβ₯3m/Wβ₯1.25m) |
π Key Reminder:
- The primary differentiator is the dimension and specific use (countertop type).
- 6810.99.00.20 is for specific large-format slabs.
- 6810.99.00.40 is the catch-all for all other acid/alkali-resistant cement/concrete articles, including smaller quartz slabs or non-countertop items.
π° 3. 2026 Latest Tariff Rate Details (Including Additional Taxes)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Time: 2025/2026 (Subject to current trade policies)
π― 1. 6810.99.00.40 ββ Other Articles of Cement, Concrete, or Artificial Stone
| Item | Content |
|---|---|
| Base Tariff | 0.0% (ad valorem) |
| Section 301 Additional Tariff | +25.0% |
| Total Tariff | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption? | β No (Most shipments are above $800; even if below, Section 301 often applies to specific HS codes) |
| Legal Basis | HTSUS 6810.99.00.40 + USITC Footnote for Section 301 |
π Explanation:
- The base tariff for this category of stone/cement articles is 0%.
- However, due to Section 301 trade actions against China, an additional 25% tariff is applied.
- Total Cost Impact: 25% of the CIF value. This is a significant cost factor that must be included in pricing strategies.
π― 2. 6810.99.00.20 ββ Agglomerated Quartz Slabs (Large Countertop Slabs)
| Item | Content |
|---|---|
| Base Tariff | 0.0% (ad valorem) |
| Section 301 Additional Tariff | +25.0% |
| Total Tariff | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption? | β No |
| Legal Basis | HTSUS 6810.99.00.20 + USITC Footnote for Section 301 |
π Note:
- Despite the more specific description, the tariff rate is identical to6810.99.00.40.
- Both codes incur a 25% total tariff.
- The choice between20and40depends strictly on dimensions and product form, not on duty savings.
π οΈ 4. Customs Clearance Practical Advice (Evading Pitfalls)
β 1. Document Preparation Checklist (No Missing Parts)
| Document | Must Provide | Notes |
|---|---|---|
| β Product Specifications | βοΈ | Must clearly state "Acid and Alkali Resistant," composition (quartz/cement), and intended use. |
| β Product Photos | βοΈ | Clear images showing dimensions, surface texture, and packaging. |
| β Commercial Invoice | βοΈ | Must accurately describe the product as "Agglomerated Quartz Slab" or "Cement Article." |
| β Packing List | βοΈ | Must include exact dimensions (Length x Width) of each slab. Crucial for HS Code determination. |
| β Bill of Lading | βοΈ | Consistent with invoice and packing list. |
π Key Point: The length and width of the slabs are critical. If you misstate the dimensions, Customs may reclassify the goods, leading to delays or penalties.
β 2. Declaration Tips (Critical Mnemonics)
π₯ βDimensions Decide Code, 25% Tax Always!β
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Slabs Lβ₯3m, Wβ₯1.25m | HS 6810.99.00.20 |
Misdeclare as 6810.99.00.40 β No tax difference, but inaccurate record |
| Slabs L<3m or W<1.25m | HS 6810.99.00.40 |
Misdeclare as 6810.99.00.20 β Risk of Audit/Rejection |
| General Mortar/Bricks | HS 6810.99.00.40 |
Misdeclare as "Quartz Slab" β Major Misclassification |
β 3. Special Cases
| Scenario | Handling Advice |
|---|---|
| Mixed Container | If a container has both large slabs (20) and small slabs (40), declare separately. Do not mix under one HS code unless identical. |
| Non-Quartz Mortar | If not quartz (e.g., pure cement/resin), still falls under 6810.99.00.40 if it's an "other article." Ensure description is accurate. |
| Kit/Pre-mixed | If sold as a dry mix to be prepared on-site, check if it falls under Chapter 38 (Chemical Products) instead of 68. However, if it's a "prepared mortar" for construction, 68 is still common. Verify composition. |
π 5. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Notes |
|---|---|---|---|
| πΊπΈ USA | 6810.99.00.40 / .20 |
25% (Total) | Base 0% + 25% Section 301. |
| π¨π³ China | 6810.99.00.40 / .20 |
~10-15% (Import Tariff) | No Section 301. Check exact rate. |
| πͺπΊ EU | 6810.91.00 / 6810.99.90 |
~5-6% | Generally lower than US. No major retaliation tariffs. |
| π¬π§ UK | 6810.91.00 / 6810.99.90 |
~5-6% | Post-Brexit tariffs similar to EU pre-Brexit. |
| π¦πΊ Australia | 6810.91.00 / 6810.99.00 |
~5% | Low tariffs, no major trade barriers. |
π Conclusion:
- The US market has a significant 25% additional tariff burden.
- EU, UK, and Australia are more favorable for cost-sensitive shipments.
- Dimension accuracy is the most critical factor for US customs compliance.
π 6. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Declaring all quartz slabs as 6810.99.00.20 regardless of size
π Consequence: Customs audit, potential penalties, and shipment delays if dimensions don't match.
β Error 2: Mislabeling "Pre-mixed Mortar Powder" as "Slab"
π Consequence: If it's a powder, it may fall under a different chapter (e.g., 38.24 or 38.23). Misclassification leads to wrong duty rates and regulatory issues.
β Error 3: Ignoring the "Countertop" Specificity in .20
π Consequence: If the product is not for countertops (e.g., for wall cladding or flooring), it cannot use .20, even if large. It must be .40.
β Correct Approach:
"Agglomerated Quartz Countertop Slab, Acid Resistant, Model XYZ, Length: 305cm, Width: 125cm, HS Code 6810.99.00.20"
π― 7. Conclusion: Precise Declaration for Smooth Customs Clearance
π― Remember:
πΉ "Dimensions Define Code, 25% Tax is Key!"
πΉ "Lβ₯3m & Wβ₯1.25m = .20; Otherwise = .40; Both = 25% Duty!"
π Tips:
- Always provide exact dimensions on the packing list.
- If your product is not quartz but other artificial stone, it still likely falls under 6810.99.00.40 (Other).
- Consider cost-benefit analysis for US shipments due to the 25% tariff.
π£ Immediate Action:
π Consult with a customs broker to confirm HS Code based on exact product specs.
π Ensure packing list dimensions are accurate to avoid customs holds.
β¨ Professional customs clearance starts with precise classification!
πΌ Every percentage point of tariff impacts your profit margin!
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) 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.