Sulfide Loaded Catalyst
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3815905000 | 40.0% | CN | US | 官方文档 |
| 3815903000 | 35.0% | CN | US | 官方文档 |
| 3824993200 | 41.5% | CN | US | 官方文档 |
| 3824993990 | 35.0% | CN | US | 官方文档 |
| 2830901500 | 37.8% | CN | US | 官方文档 |
商品图片
AI分析
⚗️ Sulfide Loaded Catalyst
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Sulfide Loaded Catalysts"?
A "Sulfide Loaded Catalyst" typically refers to chemical preparations where metal sulfides are impregnated onto a support material (such as alumina, silica, or carbon) to accelerate chemical reactions (e.g., hydrotreating in petroleum refining).
In international trade, the classification hinges on two critical factors: 1. Primary Function: Is it explicitly defined as a "Catalyst" (Chapter 38)? 2. Composition: Is it a pure inorganic substance, a mixture of inorganics, or a generic chemical preparation?
⚠️ Key Classification Logic: - If the product is primarily defined by its catalytic function and not just its chemical composition, it often falls under Chapter 38 (Miscellaneous Chemical Products). - If it is a pure inorganic sulfide or a specific mixture of inorganic compounds not primarily described as a catalyst, it may fall under Chapter 28 (Inorganic Chemicals). - If it is a generic mixture of inorganic substances not elsewhere specified, it may fall under Chapter 38.24.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Matching Logic & Rationale | Total Tax Rate (US/CN) |
|---|---|---|---|
3815.90.50.00 |
Catalysts; Reaction Initiators, Accelerators & Catalytic Preparations (Other) | Match Basis: The product is explicitly for "catalyst" use, fitting the definition of "reaction initiators, accelerators, and catalytic preparations." Although the specific form is not explicitly stated, it is inferred to be a chemical preparation based on chemical common sense, matching the "Other" category's catch-all nature. | 40.0% |
3815.90.30.00 |
Catalysts; Reaction Initiators, Accelerators & Catalytic Preparations (Other) | Match Basis: The product is for "catalyst" use. Based on common sense, it is inferred that the components are inorganic sulfides, fitting the material characteristic of "composed entirely of inorganic substances." | 35.0% |
3824.99.32.00 |
Prepared Binders for Foundry Molds/Core, Prepared Thickeners for Lubricants, etc. (Other) | Match Basis: The term "Sulfide" in the product name belongs to the category of inorganic compounds, fitting the material characteristic of "mixtures of hydrosulfites, sulfoxylates, or inorganic compounds." As a catalyst, its chemical nature is consistent with the use of chemical industrial preparations covered by this classification, with no material conflict. | 41.5% |
3824.99.39.90 |
Other Chemical Products and Preparations (Other) | Match Basis: This product belongs to inorganic chemical preparations, fitting the material characteristic of "mixtures of two or more inorganic compounds" (sulfide catalysts are usually composed of multiple metal sulfides), and it does not belong to the excluded specific items like lithium nickel cobalt manganese oxides. | 35.0% |
2830.90.15.00 |
Sulfides, Polysulfides, and Sulphides of Thioacids (Other) | Match Basis: The term "Sulfide" in the product name is completely consistent with the material attribute in the classification; since the specific components are not explicitly defined, based on the core material feature of "Sulfide," it can be reasonably inferred that it belongs to the scope of sulfides/polysulfides, with no material conflict. | 37.8% |
🔍 Critical Observation: - HS 3815.90: Best fit if the product is legally/technically defined as a "Catalyst" (Chapter 38 focuses on function). - HS 2830.90: Best fit if the product is chemically defined primarily as a "Sulfide" substance (Chapter 28 focuses on material). - HS 3824.99: Used for generic inorganic mixtures that don't fit other specific chemical preparations.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3815.90.50.00 —— Other Catalysts (Generic Chemical Preparation)
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | +10.0% (Section 122 Tariffs on China/HK products, effective Nov 10, 2025) |
| Total Tax Rate | 40.0% |
| Tax Calculation | CIF Value × 40% |
| De Minimis Exemption? | ❌ No (deny_de_minimis) |
| Legal Basis Path | Base: 3815.90.50.00 → USITC: 25% → IEEPA: 10% |
📌 Explanation: - The 25% Section 301 tariff is applied to chemical products from China. - The 10% IEEPA (122 Section) tariff is a new addition effective Nov 10, 2025, targeting specific Chinese goods. - Total 40% is a high burden. Precise classification is key to avoiding misclassification penalties.
🎯 2. 3815.90.30.00 —— Inorganic Sulfide Catalysts
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | Base: 3815.90.30.00 → USITC: 25% → IEEPA: 10% |
📌 Note: - If you can prove the catalyst is composed entirely of inorganic substances (specifically inorganic sulfides), you may qualify for this code. - Savings: 5% lower than
3815.90.50.00.
🎯 3. 3824.99.32.00 —— Generic Inorganic Mixture Preparations
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | Base: 3824.99.32.00 → USITC: 25% → IEEPA: 10% |
📌 Note: - This is the highest tax rate among the options. - Only use if the product is a generic inorganic mixture that does not clearly qualify as a "Catalyst" (Ch 38.15) or a pure "Sulfide" (Ch 28).
🎯 4. 3824.99.39.90 —— Other Inorganic Chemical Preparations
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | Base: 3824.99.39.90 → USITC: 25% → IEEPA: 10% |
📌 Note: - Suitable for mixtures of multiple metal sulfides that do not fit the strict definition of
3815.90.30.00but are clearly inorganic chemical preparations.
🎯 5. 2830.90.15.00 —— Sulfides/Polysulfides (Inorganic)
| Item | Content |
|---|---|
| Base Tariff | 2.8% |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Tax Rate | 37.8% |
| Tax Calculation | CIF Value × 37.8% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | Base: 2830.90.15.00 → USITC: 25% → IEEPA: 10% |
📌 Note: - This code focuses on the chemical material (Sulfide) rather than the function (Catalyst). - Risk: If customs determines the primary purpose is catalysis, they may reclassify to Chapter 38, leading to back taxes and penalties. - Advantage: Lower base rate (2.8%) than generic catalysts (5.0%).
🛠️ IV. Customs Clearance Practical Advice (Actionable Pitfall Avoidance)
✅ 1. Documentation Checklist (Must-Haves)
| Document | Required | Purpose |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail: Active ingredient (e.g., MoS2, NiMoS), support material (Al2O3, SiO2), and explicitly state "Catalyst" |
| ✅ MSDS (Material Safety Data Sheet) | ✔️ | To confirm chemical nature (Inorganic Sulfide) and hazards |
| ✅ Technical Data Sheet (TDS) | ✔️ | Shows catalytic efficiency, reaction conditions, proving "Catalyst" function |
| ✅ Commercial Invoice | ✔️ | Description: "Metal Sulfide Based Catalyst for Hydrotreating" |
| ✅ Packing List | ✔️ | Weight, dimensions, packaging type |
| ✅ Certificate of Origin (CO) | ✔️ | Essential for proving CN origin and applying correct tariffs |
✅ 2. Declaration Strategy (Key Mantra)
🔥 "Function Defines Chapter 38, Material Defines Chapter 28. Be Specific!"
| Scenario | Correct Declaration | Wrong Practice | Consequence |
|---|---|---|---|
| Product is a Catalyst | HS 3815.90.xxxx Description: "Catalyst, Sulfide-based, for chemical reaction" |
Declaring as "Sulfide Powder" (2830) |
❌ Rejection/Re-classification Risk |
| Product is Pure Sulfide | HS 2830.90.15.00 Description: "Inorganic Sulfide Compound" |
Declaring as "Catalyst" | ⚠️ Under-declaration Risk if function is not primary |
| Product is a Mixture | HS 3824.99.xxxx Description: "Inorganic Chemical Preparation" |
Vague name: "Chemical A" | ❌ Customs Inspection Delay |
✅ 3. Special Circumstances Handling
| Situation | Handling Advice |
|---|---|
| OEM Catalyst for Refineries | Provide the end-user's technical requirement document specifying the catalyst type. |
| Sample vs. Commercial | Clearly mark "Sample for Testing" to avoid duty assessment if value is under threshold (though deny_de_minimis applies to CN origin, so duties still apply). |
| Composite Packages (Catalyst + Container) | Declare the catalyst as the primary good. Containers may be declared separately if not custom-fitted. |
| Discontinued Product | Ensure the formula does not contain restricted substances (e.g., certain heavy metals) that might trigger environmental bans. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Base Tariff | Surcharges (US/CN) | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3815.90.50.00 or 3815.90.30.00 |
0% - 5% | +25% (301) +10% (IEEPA) | Total 35%-40%. High compliance risk. |
| 🇨🇳 China | 3815.90.50.00 |
~5-7% | None | Domestic trade, standard VAT applies. |
| 🇪🇺 EU | 3815.90.50.00 |
~4-6% | None (Generally) | Check ECHA REACH compliance for chemicals. |
| 🇯🇵 Japan | 3815.90.90.00 |
~3-5% | None | No Section 301 equivalent. |
| 🇻🇳 Vietnam | 3815.90.50.00 |
~0-5% | Depends on FTA | May benefit from EU-Vietnam FTA if applicable. |
📌 Conclusion: - The US is the most challenging market due to the叠加 (stacking) of Section 301 and IEEPA tariffs. - China Origin is heavily impacted. Accurate classification between
3815(Catalyst) and2830(Sulfide) can save 2.2% - 5% in taxes.
📌 VI. Common Mistakes & Pitfalls (Blood & Tears Lessons)
❌ Mistake 1: Using vague name "Chemical Mix" on Invoice 👉 Consequence: Customs assigns default HS Code with high duty + penalty.
❌ Mistake 2: Declaring "Catalyst" but providing no technical proof 👉 Consequence: Customs doubts the classification, delays clearance for 2-4 weeks.
❌ Mistake 3: Ignoring IEEPA 122 Section Tariff 👉 Consequence: Underpayment of 10% + interest. Effective from Nov 10, 2025.
❌ Mistake 4: Confusing "Sulfide" (Material) with "Catalyst" (Function)
👉 Consequence: If you declare as 2830 (Sulfide) but it's a complex prepared catalyst, you risk misclassification.
✅ Correct Action:
"Sulfide-Based Catalyst, Metal-Loaded, for Petroleum Refining, HS 3815.90.50.00, Made in China"
🎯 VII. Conclusion: Professional Declaration Saves Money!
🎯 Remember the Mantra:
🔹 "Catalyst = Ch 38, Sulfide = Ch 28. Function First!" 🔹 "US Tariff = Base + 25% + 10%. Total ~40%." 🔹 "Declare Accurately, Avoid Delays, Save Profits."
📌 Pro Tip:
If your catalyst is non-Chinese origin (e.g., USA, Germany, Japan), you can avoid IEEPA and Section 301 tariffs, reducing total tax to Base Rate only (0-5%). Consider supply chain diversification if the 40% tariff impacts margins significantly. Apply for an Advance Ruling (ISF/Pre-classification) before shipment to ensure compliance.
📣 Immediate Action:
📞 Contact your customs broker + Provide TDS/MSDS + Confirm Origin 🚀 Clear customs smoothly, expand global markets, maximize profit!
✨ Professional Clearance Starts with Accurate Classification! 💼 Every penny of cost deserves precise calculation!
用户评价
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。