Refractory Ramming Mix Premixed
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2836995050 | 10.0% | CN | US | 官方文档 |
| 6810110010 | 38.2% | CN | US | 官方文档 |
| 6810990080 | 35.0% | CN | US | 官方文档 |
| 3816002050 | 38.0% | CN | US | 官方文档 |
| 6902905020 | 35.0% | CN | US | 官方文档 |
| 6815994110 | 35.0% | CN | US | 官方文档 |
商品图片
AI分析
🔥 Refractory Ramming Mix (Premixed)
🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What is "Refractory Ramming Mix"?
Refractory Ramming Mix (Premixed) is a high-performance industrial material used for lining industrial kilns, furnaces, reactors, and boilers. It is a plastic refractory material composed of refractory aggregates (such as magnesia, alumina, or silica), powders, and binders, premixed for on-site ramming or vibration installation.
In international trade, classification hinges on two critical factors:
1. Material Composition: Is it a chemical salt (carbonate), a ceramic/oxide, or a chemical preparation?
2. State/Form: Is it a raw material/chemical, a building/industrial article, or a mixed chemical product?
⚠️ Key Classification Dilemma:
- Option A: Classify as Chemical Raw Material (Carbonate/Salt) → Lower base duty, high Section 301 duty.
- Option B: Classify as Refractory Article/Building Material (Oxide-based) → Higher base duty, high Section 301 duty.
- Option C: Classify as Other Chemical Preparation (Unlisted mixture) → Base duty varies, high Section 301 duty.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Mapping)
Based on the provided data, here are the four possible HS Code classifications for Refractory Ramming Mix (Premixed):
| HS Code | Product Description | Summary Logic | Total Tax | Tax Detail |
|---|---|---|---|---|
2836.99.50.50 |
Other Carbonates (Raw Material) | Inferred as carbonate-related refractory chemical. Form: Raw material/Primary product. No obvious material conflict with "Other Carbonates". | +10.0% | Base: 0%, 301: 0%, 122 Clause: 10% |
6810.11.00.10 |
Refractory Articles (Magnesia/Alumina-based) | Inferred as oxide-based (MgO, Al₂O₃). Form: Ramming mix (plastic refractory). Matches logic of such building/industrial articles. No material conflict. | 38.2% | Base: 3.2%, 301: 25.0%, 122 Clause: 10% |
6810.99.00.80 |
Other Cement/Concrete/Artificial Stone Articles | Falls under cement/concrete/artificial stone category (material compliant). Form: Plastic material. Fits "Other" category definition for non-specific quartz agglomerates. | 35.0% | Base: 0.0%, 301: 25.0%, 122 Clause: 10% |
3824.99.21.00 |
Other Chemical Preparations (Unlisted) | "Ramming mix" is a chemical industry preparation form. Though coal tar not explicitly mentioned, inferred as chemical mixture due to "refractory" industrial attribute. Matches "Chemical Products & Preparations" and "Unlisted"兜底 attribute. | 35.0% | Base: 0.0%, 301: 25.0%, 122 Clause: 10% |
3824.99.29.00 |
Other Chemical Preparations (Unlisted - Other) | Chemical industry-related preparation. Form: Ramming mix. Fits "Other" category. No obvious material conflict with aromatic substances. | 41.5% | Base: 6.5%, 301: 25.0%, 122 Clause: 10% |
🔍 Critical Insight:
- Most Aggressive Tariff:3824.99.29.00(41.5%) due to higher base duty (6.5%).
- Most Favorable Tariff:2836.99.50.50(10.0%) if the product is strictly carbonate-based.
- Standard Industrial Classification:6810.11.00.10or6810.99.00.80(35-38.2%) for typical oxide-based refractories.
💰 III. 2026 Latest Tariff Rate Detailed Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (and subsequent imports)
🎯 1. 2836.99.50.50 —— Other Carbonates (If Carbonate-Based)
| Item | Content |
|---|---|
| Base Duty | 0% (ad valorem) |
| USITC Surcharge (301) | 0% (Not applicable for this specific subheading in the provided data) |
| 122 Clause Surcharge | +10% |
| Total Tax | 10.0% |
| Calculation | CIF Value × 10% |
| De Minimis Exemption | ❌ Not Applicable (High risk of audit) |
| Legal Basis | IEEPA:122 Clause → USITC:2836.99.50.50 |
📌 Explanation:
- If your ramming mix is magnesia-carbonate or dolomite-based, this low-base-duty code applies.
- The 10% 122 Clause is a specific surcharge for certain Chinese-origin goods.
- Total 10% is the lowest possible rate in the provided data.
🎯 2. 6810.11.00.10 —— Refractory Articles (Oxide-Based, e.g., Magnesia/Alumina)
| Item | Content |
|---|---|
| Base Duty | 3.2% |
| USITC Surcharge (301) | +25% |
| 122 Clause Surcharge | +10% |
| Total Tax | 38.2% |
| Calculation | CIF Value × 38.2% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis | 301: Footnote 9903.88.01 → 122 Clause → USITC:6810.11.00.10 |
📌 Explanation:
- This is the standard classification for traditional refractory ramming mixes based on magnesia, alumina, or silica.
- The 25% Section 301 tariff is significant.
- Total 38.2% is a high cost item.
🎯 3. 6810.99.00.80 —— Other Cement/Concrete/Stone Articles
| Item | Content |
|---|---|
| Base Duty | 0.0% |
| USITC Surcharge (301) | +25% |
| 122 Clause Surcharge | +10% |
| Total Tax | 35.0% |
| Calculation | CIF Value × 35.0% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis | 301 → 122 Clause → USITC:6810.99.00.80 |
📌 Explanation:
- If the product is classified as a cementitious or stone-like material rather than a pure refractory article, this code may apply.
- The 0% base duty makes it 3.2% cheaper than6810.11.00.10.
🎯 4. 3824.99.21.00 & 3824.99.29.00 —— Chemical Preparations
| Item | Content |
|---|---|
| Base Duty | 0.0% (21) or 6.5% (29) |
| USITC Surcharge (301) | +25% |
| 122 Clause Surcharge | +10% |
| Total Tax | 35.0% (21) or 41.5% (29) |
| De Minimis Exemption | ❌ Not Applicable |
📌 Explanation:
-3824.99.21.00(35.0%): Best "chemical" classification. No base duty, but still hits 25% + 10% surcharges.
-3824.99.29.00(41.5%): Worst case if classified as "Other Chemicals" with a 6.5% base duty. Avoid if possible.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Required Documentation Checklist (Non-negotiable)
| Document | Must Provide | Explanation |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must explicitly list chemical composition (e.g., MgO %%, Al₂O₃ %%, Carbonate content). Critical for distinguishing between 2836, 6810, and 3824. |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | Confirms if it’s a hazardous chemical or standard industrial good. |
| ✅ Product Photos | ✔️ | Show packaging, label, and texture. "Premixed" bags vs. bulk. |
| ✅ Commercial Invoice | ✔️ | Clearly state: "Refractory Ramming Mix, Premixed, [HS Code], HS Description: [Match Invoice to HS]" |
| ✅ Certificate of Origin | ✔️ | If not from China, may avoid 301/122 clauses. |
| ✅ Bill of Lading | ✔️ | Confirm weight and volume for CIF calculation. |
✅ 2. Declaration Strategy (Key Mantras)
🔥 "Composition is King, Form is Queen! Misclassify = High Tax + Penalty!"
| Scenario | Correct Declaration | Incorrect Declaration | Consequence |
|---|---|---|---|
| Product is Magnesia-Carbonate based | 2836.99.50.50 (10%) |
Declare as 6810.11.00.10 |
Overpay 28.2% |
| Product is Pure Oxide (MgO/Al₂O₃) | 6810.11.00.10 (38.2%) or 6810.99.00.80 (35%) |
Declare as 3824.99.29.00 |
Overpay by 3.3% - 6.5% |
| Product is a Chemical Binder Mixture | 3824.99.21.00 (35%) |
Declare as 2836 |
Underpayment Risk + Penalty |
| Mixed/Unspecified Composition | Apply for Advance Ruling | Guess 3824 |
High audit risk, 41.5% worst-case |
✅ 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Mix | Provide Formula Sheet or Component Breakdown to justify 6810 or 3824. |
| High Carbon Content | If >10% Carbon, may need to check 6815.99 (Carbon Articles) – Not in provided data, but worth checking! |
| Small Quantity (De Minimis) | ❌ Do NOT rely on de minimis. All provided HS codes are high-risk for 301/122 clauses. Direct-to-Consumer shipping will likely be seized or backhanded. |
| Origin Transshipment | If shipped from Vietnam/Mexico with Substantial Transformation, you MAY avoid 301/122. Must prove processing. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Est. Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2836.99.50.50 (Best) or 6810.11.00.10 |
10% or 38.2% | None typically | High Surcharge Risk (301 + 122) |
| 🇨🇳 China | 6801.00.00.00 (Typical) |
0% - 5% | N/A | Lower global benchmark |
| 🇪🇺 EU | 6810.11 |
3.5% | REACH (If chemical) | No Section 301 equivalent |
| 🇮🇳 India | 6810 |
7.5% - 10% | BIS (If specific) | Moderate barrier |
| 🇦🇺 Australia | 6810 |
5% | GMEA | No major surcharges |
📌 Conclusion:
- USA is the Harshest Market due to Section 301 (25%) and 122 Clause (10%).
- Cost Optimization: Try to classify as Carbonate (2836) if chemically justified.
- Avoid3824.99.29.00unless absolutely necessary (41.5% is the worst case).
📌 VI. Common Mistakes & Pitfall Guide (Lessons Learned from Blood)
❌ Mistake 1: Declaring "Ramming Mix" generically without specifying material.
👉 Result: Customs assigns worst-case 3824.99.29.00 (41.5%) or triggers manual review.
❌ Mistake 2: Claiming "Raw Material" to get 2836 when it’s a finished refractory article.
👉 Result: Audit → Back taxes + Penalty + Possible seizure.
❌ Mistake 3: Ignoring the 122 Clause.
👉 Result: Even if 301 is waived, 10% 122 Clause still applies to most Chinese-origin goods.
❌ Mistake 4: Using De Minimis (Under $800) for bulk industrial goods.
👉 Result: High-value refractory materials are frequently flagged for 301/122 clauses. Expect delays.
✅ Correct Approach:
"Refractory Ramming Mix, Premixed, Magnesia-Based (MgO >80%), for Industrial Kiln Lining, HS: 6810.11.00.10"
🎯 VII. Conclusion: Precise Classification Saves Money!
🎯 Remember the Mantra:
🔹 "Carbonate = 10%, Oxide = 38%, Chemical = 35-41%. Know your material!"
🔹 "301 + 122 = 35-41%. Don’t guess!"
📌 Pro Tip:
- If your product is Magnesia-Carbonate, push for 2836.99.50.50 (10%).
- If it’s Alumina/Silica/Magnesia Oxide, accept 6810.11.00.10 (38.2%) or try 6810.99.00.80 (35%).
- Apply for an Advance Ruling with US Customs (CBP) if the composition is ambiguous.
📣 Immediate Action:
📞 Contact a Professional Customs Broker + Provide Technical Data Sheet + Request HS Code Advance Ruling
🚀 Ensure Smooth Customs Clearance, Avoid Surprises, Protect Your Margin!
✨ Professional Clearance Starts with Precise Classification!
💼 Every 1% of Tax is 1% of Profit Lost!
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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。