气泡石
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 6815994170 | 35.0% | CN | US | Official Doc |
| 6914108000 | 44.0% | CN | US | Official Doc |
| 6815994110 | 35.0% | CN | US | Official Doc |
| 6914908000 | 40.6% | CN | US | Official Doc |
AI Analysis
🌫️ Aeration Stones (Aquarium Oxygen Stones)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Aeration Stones"?
Aeration stones (also known as air stones or diffusers) are small devices used in aquariums, hydroponics, and industrial water treatment to diffuse air into water, creating fine bubbles.
In international trade, they are primarily classified based on their material composition: 1. Ceramic Aeration Stones: Made from porous ceramic materials (the most common type for hobbyists and professionals). 2. Mineral/Stone Aeration Stones: Made from natural or processed mineral substances (e.g., pumice, volcanic rock).
⚠️ Key Distinction Point:
- If the product is porous ceramic → It falls under Chapter 69 (Ceramic Products).
- If the product is mineral-based (not ceramicized) → It falls under Chapter 68 (Mineral Products).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the four possible HS Codes for Aeration Stones:
| HS Code | Product Description | Basis for Classification | Total Tax Rate |
|---|---|---|---|
| 6914.10.80.00 | Other ceramic articles | Primary Classification: Based on the inference that the aeration stone is made of ceramic material. Fits the "other ceramic articles" category. | 44.0% |
| 6815.99.41.10 | Other articles of stone or other mineral substances | Alternative Classification: Inference that the aeration stone is a mineral substance product, fitting the "other stone articles" category. | 35.0% |
| 6914.90.80.00 | Other ceramic articles (Residual Category) | Fallback Classification: Based on the inference that the aeration stone is typically a ceramic aeration stone, fitting the residual "other ceramic articles" category. | 40.6% |
| 6815.99.41.70 | Other articles of stone or other mineral substances | Alternative Classification: Matches the material as a mineral product, fitting the definition of "other stone or mineral products". | 35.0% |
🔍 Key Reminder:
- Ceramic vs. Mineral: The single most critical factor is the material composition.
- 6914.xxxx is for Ceramic products.
- 6815.xxxx is for Mineral/Stone products.
- Misclassification between these two can lead to significant tax differences (35% vs. 44%) and customs delays.
💰 III. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 6914.10.80.00 —— Other Ceramic Articles (Ceramic Material)
| Item | Content |
|---|---|
| Basic Tariff | 9.0% (ad valorem) |
| Section 301 Surcharge | +25% (from USITC Footnote) |
| Section 122 Surcharge | +10% (Specific provision for certain goods) |
| Total Tax Rate | 44.0% |
| Tax Calculation | CIF Value × 44.0% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Base Tariff 9% → Section 301: 25% → Section 122: 10% |
📌 Explanation:
- "Section 301: 25%": Additional tariff under U.S. Trade Law Section 301 against Chinese goods.
- "Section 122: 10%": Specific additional tariff provision (Note: Ensure this is the correct active code for your specific shipment date; some Section 122 rates have changed, but based on the provided data, it is 10%).
- Total 44%: High tariff rate. Pre-calculation is essential for cost management.
🎯 2. 6815.99.41.10 —— Other Articles of Stone or Mineral Substances
| Item | Content |
|---|---|
| Basic Tariff | 0.0% (ad valorem) |
| Section 301 Surcharge | +25% (from USITC Footnote) |
| Section 122 Surcharge | +10% (Specific provision for certain goods) |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Base Tariff 0% → Section 301: 25% → Section 122: 10% |
📌 Note:
- Lower Base Rate: Unlike ceramics (9%), mineral products often have a 0% base rate.
- Total 35%: This is 9% cheaper than the ceramic classification.
- Material Proof: To qualify for this, you must prove the product is not ceramicized (i.e., it is raw or processed mineral, not fired clay/ceramic).
🎯 3. 6914.90.80.00 —— Other Ceramic Articles (Residual Category)
| Item | Content |
|---|---|
| Basic Tariff | 5.6% (ad valorem) |
| Section 301 Surcharge | +25% (from USITC Footnote) |
| Section 122 Surcharge | +10% (Specific provision for certain goods) |
| Total Tax Rate | 40.6% |
| Tax Calculation | CIF Value × 40.6% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Base Tariff 5.6% → Section 301: 25% → Section 122: 10% |
📌 Note:
- This is a "catch-all" category for ceramic articles not specified elsewhere.
- Total 40.6%: Lower than 6914.10 (44%) but higher than 6815 (35%).
- Use this if the specific ceramic subheading (6914.10) is deemed inappropriate by customs but the material is definitively ceramic.
🎯 4. 6815.99.41.70 —— Other Articles of Stone or Mineral Substances
| Item | Content |
|---|---|
| Basic Tariff | 0.0% (ad valorem) |
| Section 301 Surcharge | +25% (from USITC Footnote) |
| Section 122 Surcharge | +10% (Specific provision for certain goods) |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Base Tariff 0% → Section 301: 25% → Section 122: 10% |
📌 Note:
- Similar to 6815.99.41.10, this is another subheading for mineral articles.
- Total 35%: Same as 6815.99.41.10.
- Differentiation: The difference between .10 and .70 is often specific to the exact mineral type or application. Ensure your technical data sheet supports the specific subheading chosen.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
✅ 1. Preparation Checklist (All Documents Mandatory)
| Document | Must Provide | Explanation |
|---|---|---|
| ✅ Material Composition Report | ✔️ | Critical: Must explicitly state "Ceramic" or "Mineral/Stone". If ceramic, specify firing process. If mineral, specify type (e.g., Pumice). |
| ✅ Product Photos | ✔️ | Clear images showing texture, color, and structure. Ceramic usually has a glaze or uniform porous structure; natural stone looks rougher. |
| ✅ Commercial Invoice | ✔️ | Accurately describe as "Ceramic Aeration Stone" OR "Mineral Aeration Stone" to match the HS Code. |
| ✅ Packing List | ✔️ | List weights and quantities. |
| ✅ Usage Statement | ✔️ | State intended use (e.g., "Aquarium Aeration", "Hydroponics"). |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 "Material First, Tax Second; Ceramic 44, Stone 35!"
| Scenario | Correct HS Code | Incorrect Action | Consequence |
|---|---|---|---|
| Ceramic Aeration Stone | 6914.10.80.00 (44%) or 6914.90.80.00 (40.6%) |
Declare as Mineral (6815) |
False Declaration: Penalties, fines, potential seizure. |
| Mineral Aeration Stone | 6815.99.41.10 (35%) or 6815.99.41.70 (35%) |
Declare as Ceramic (6914) |
Overpayment: Lose 9% savings. Customs may still accept but overpaying is unnecessary. |
| Mixed Materials | Consult Customs Broker | Assume one category | Risk: Customs will classify based on the primary material or highest duty. |
✅ 3. Special Cases Handling
| Case | Handling Advice |
|---|---|
| OEM Custom Colors | Provide technical data sheet. Color does not change HS Code, but texture/material must be confirmed. |
| Combined Packages | If selling "Aeration Stone + Air Pump", declare separately. The stone follows the above rules; the pump follows electronics (e.g., 8413). Do not combine into one HS Code. |
| Sample Shipments | Even samples are subject to the same tariffs if they meet de minimis thresholds (though de minimis is often denied for Section 301 goods, verify current status). |
🌍 V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tax Rate (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 6914.10.80.00 (Ceramic) or 6815.99.41.10 (Mineral) |
44% (Ceramic) / 35% (Mineral) | None specific | High tariffs due to Section 301 & 122. |
| 🇨🇳 China | 6914.10.80.00 |
9% (Basic) | None | No Section 301. |
| 🇪🇺 EU | 6914.10.80.00 |
6.5% (Basic) | CE (if electrical components included) | No Section 301. |
| 🇬🇧 UK | 6914.10.80.00 |
6.5% (Basic) | UKCA | Post-Brexit rules apply. |
| 🇯🇵 Japan | 6914.10.80.00 |
6.0% (Basic) | PSE (if electrical) | No Section 301. |
📌 Conclusion:
- USA is the most expensive market for Aeration Stones due to Section 301 (25%) and Section 122 (10%) surcharges.
- Mineral-based stones (35%) are cheaper to import than Ceramic ones (44%) in the US, but proving "Mineral" vs. "Ceramic" is crucial.
- No other major market applies Section 301/122 tariffs, so exports to EU/Asia are significantly more cost-effective.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Declaring "Ceramic Aeration Stone" as 6815 (Mineral)
👉 Consequence: False Declaration. Customs will test the material, deny entry, and issue fines.
❌ Error 2: Declaring "Mineral Aeration Stone" as 6914 (Ceramic)
👉 Consequence: Overpayment. You pay 44% instead of 35%. No penalty, but lost profit.
❌ Error 3: Not specifying material in the invoice
👉 Consequence: Customs Delay. Customs may classify based on the highest duty rate or request additional documentation, leading to storage fees.
✅ Correct Approach:
"Ceramic Aeration Stone, Porous Clay, 50mm Diameter, for Aquarium Use, Model XYZ, Country of Origin: China"
OR
"Mineral Aeration Stone, Pumice Rock, 50mm Diameter, for Aquarium Use, Model XYZ, Country of Origin: China"
🎯 VII. Conclusion: Precise Classification Saves Money!
🎯 Remember the Mnemonic:
🔹 "Ceramic is 44%, Stone is 35%.
Wrong code costs you, and customs will see you."
🔹 "Section 301 hits both, but stone starts lower.
Prove your material, and you win the battle."
📌 Pro Tip:
If your aeration stones are made of porcelain or high-fired ceramic, use 6914. If they are made of natural stone, pumice, or un-fired mineral aggregates, use 6815.
Recommendation: Apply for an Advance Ruling from US Customs and Border Protection (CBP) if you are importing large volumes, to lock in the correct HS Code and avoid disputes.
📣 Immediate Action:
📞 Contact a professional customs broker + Provide Material Test Report + Apply for CBP Advance Ruling
🚀 Let your Aeration Stones clear customs smoothly, save 9% tax, and boost your profits!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every cent of cost deserves to 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.