bismuth tungstate catalyst
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2825909000 | 38.7% | CN | US | 官方文档 |
| 3815905000 | 40.0% | CN | US | 官方文档 |
| 2841800050 | 40.5% | CN | US | 官方文档 |
| 3815901000 | 41.5% | CN | US | 官方文档 |
| 2825903000 | 40.5% | CN | US | 官方文档 |
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AI分析
⚗️ Bismuth Tungstate Catalyst (Bismuth Tungstate Catalyst)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy 📌 I. Product Definition & Classification: What Exactly is "Bismuth Tungstate"?
Bismuth Tungstate (typically $Bi_2WO_6$ or related tungstates) is a complex inorganic compound. In international trade, its classification depends heavily on its primary function and chemical composition. It sits at the intersection of inorganic chemistry and catalytic materials.
Two Main Classification Paths: 1. As a Chemical Reagent/Compound: If primarily used as a chemical intermediate or raw material, it falls under "Inorganic Chemicals." 2. As a Catalyst: If specifically processed and designated for catalytic reactions (e.g., photocatalysis, organic synthesis), it falls under "Catalysts."
⚠️ Critical Distinction Point: - If the product is a raw chemical powder without specific catalytic pretreatment or certification → It is classified as a Chemical Compound (Chapter 28). - If the product is engineered for catalytic use (e.g., coated on supports, sold as "Catalyst for...") → It is classified as a Catalyst (Chapter 38).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the 5 possible HS Codes for Bismuth Tungstate, ranging from chemical compounds to specific catalysts.
| HS Code | Product Description | Applicable Scenario | Primary Attribute |
|---|---|---|---|
2825.90.90.00 |
Other inorganic compounds (Titanium Tungstate/Mixed Oxides) | General inorganic metal oxide; broad category for tungsten compounds not specifically listed elsewhere. | Metal Oxide (Generic) |
3815.90.50.00 |
Other Reaction Initiators, Accelerants, and Catalytic Preparations | Explicitly marketed/used as a "Catalyst"; fits chemical preparations category. | Catalyst (General) |
2841.80.00.50 |
Other Tungstates | Specifically identifies the material as "Tungstate"; fits inorganic salts of tungstic acid. | Tungstate Salt |
3815.90.10.00 |
Catalysts Containing Precious Metals or Specific Key Elements | Highlights "Bismuth" or specific catalytic composition; implies high-purity or specialized catalyst. | Catalyst (Specific) |
2825.90.30.00 |
Other Inorganic Metal Oxides (Containing Tungsten) | Specifically for tungsten-containing inorganic oxides; narrow chemical scope. | Tungsten Oxide |
🔍 Key Reminder: - Chemical vs. Catalyst: The difference between
28xx(Chemicals) and38xx(Catalysts) is crucial.3815codes generally attract higher duties if not carefully justified. - Material Specificity:2841.80.00.50is the most chemically accurate for "Tungstate" salts, while2825codes are for "Oxides." Bismuth Tungstate is often an oxide complex, but can be formulated as a salt.
💰 III. 2026 Latest Tariff Rate Details (Including Surcharge & Policy Add-ons)
✅ Applicable Country: USA (US) ✅ Origin: China (CN) ✅ Effective Time: 2025 November 10 onwards (Including subsequent imports)
🎯 1. 2825.90.90.00 —— Other Inorganic Compounds (Generic Metal Oxide)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| Section 301 Surcharge | 25.0% |
| 122 Clause Tariff | 10.0% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Eligibility | ❌ Not Allowed (High duty rate) |
| Legal Basis Path | Base: 3.7% → Section 301: 25% → 122 Clause: 10% |
📌 Explanation: - This code treats Bismuth Tungstate as a generic "Other inorganic compound." - Total 38.7% is the lowest among the catalyst options, making it potentially cheaper if customs accepts the "Generic Oxide" classification.
🎯 2. 3815.90.50.00 —— Other Catalysts (General)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| Section 301 Surcharge | 25.0% |
| 122 Clause Tariff | 10.0% |
| Total Tax Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Eligibility | ❌ Not Allowed |
| Legal Basis Path | Base: 5.0% → Section 301: 25% → 122 Clause: 10% |
📌 Note: - Slightly higher than the generic oxide code due to a higher base rate (5% vs 3.7%). - Justification: Must prove it is a "Catalytic Preparation."
🎯 3. 2841.80.00.50 —— Other Tungstates (Chemical Salt)
| Item | Content |
|---|---|
| Base Tariff | 5.5% |
| Section 301 Surcharge | 25.0% |
| 122 Clause Tariff | 10.0% |
| Total Tax Rate | 40.5% |
| Tax Calculation | CIF Value × 40.5% |
| De Minimis Eligibility | ❌ Not Allowed |
| Legal Basis Path | Base: 5.5% → Section 301: 25% → 122 Clause: 10% |
📌 Note: - Most chemically accurate for "Tungstate" salts. - Total duty is 40.5%. Higher base rate (5.5%) than oxides.
🎯 4. 3815.90.10.00 —— Catalysts (Specific Composition)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | 25.0% |
| 122 Clause Tariff | 10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligibility | ❌ Not Allowed |
| Legal Basis Path | Base: 6.5% → Section 301: 25% → 122 Clause: 10% |
📌 Note: - Highest total tax rate among the options. - Used if the catalyst contains specific precious metals or is highly specialized. Avoid unless required by technical specs.
🎯 5. 2825.90.30.00 —— Tungsten-Containing Inorganic Oxides
| Item | Content |
|---|---|
| Base Tariff | 5.5% |
| Section 301 Surcharge | 25.0% |
| 122 Clause Tariff | 10.0% |
| Total Tax Rate | 40.5% |
| Tax Calculation | CIF Value × 40.5% |
| De Minimis Eligibility | ❌ Not Allowed |
| Legal Basis Path | Base: 5.5% → Section 301: 25% → 122 Clause: 10% |
📌 Note: - Specific to tungsten oxides. - Total duty 40.5%. Same as Tungstates.
🛠️ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
✅ 1. Preparation Checklist (缺一不可 / Mandatory)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must clearly state chemical formula ($Bi_2WO_6$), purity, and primary use (e.g., "Photocatalyst for water treatment"). |
| ✅ Certificate of Analysis (COA) | ✔️ | Confirms composition and purity levels. |
| ✅ Product Photos | ✔️ | Clear images of packaging, label, and the powder/liquid state. |
| ✅ Commercial Invoice | ✔️ | Must accurately describe the goods. Avoid vague terms like "Chemical." Use "Bismuth Tungstate Catalyst" or "Tungstate Compound." |
| ✅ Proof of Use | ✔️ | If classifying as 3815 (Catalyst), provide documents showing it is used as a catalyst in a reaction. |
| ✅ Packaging List | ✔️ | Detail net/gross weight and number of packages. |
✅ 2. Declaration Tips (Key Mnemonic)
🔥 “Use Defines Code, Chemistry Defines Chapter!”
| Situation | Correct Declaration | Wrong Practice |
|---|---|---|
| Sold as Raw Material for further chemical processing | 2825.90.90.00 or 2825.90.30.00 |
Misdeclaring as "Catalyst" → Higher base duty |
| Sold specifically as Photocatalyst for wastewater treatment | 3815.90.50.00 |
Describing as "Tungsten Oxide" → Potential misclassification |
| High-purity Tungstate Salt for lab reagents | 2841.80.00.50 |
Misdeclaring as "Catalyst" → Unjustified higher rate |
| Complex Catalyst Mixture | 3815.90.10.00 |
Under-declaring as simple oxide |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Catalyst | Provide the End-User License or Application Note proving it is a catalyst. |
| Mixed with Binders/Supports | If >50% catalyst by weight, may still fall under 3815. Consult a specialist. |
| High Purity (>99.9%) | Often pushed to 28xx (Chemicals) rather than 38xx (Preparations) if not formulated. |
| Small Sample Quantities | Still subject to full duty. No de minimis exemption for high-tariff Chinese goods. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 3815.90.50.00 |
40.0% (Catalyst) | No specific | High surcharge applies |
| 🇨🇳 China | 2841.80.00.50 |
5% - 8% | No specific | Lower duty if imported back |
| 🇪🇺 EU | 2825.90.00 |
0% - 6% | REACH | No Section 301 equivalent |
| 🇯🇵 Japan | 2825.90.00 |
3.0% - 5% | None | Moderate duty |
📌 Conclusion: - USA is the most expensive market for Bismuth Tungstate due to Section 301 (25%) + 122 Clause (10%) surcharges. - Choice of HS Code impacts cost by 2.8% (38.7% vs 41.5%). Accurate classification is vital. - EU/Japan do not apply Section 301, making duties significantly lower.
📌 VI. Common Errors & Pitfalls (Blood & Tears Lessons)
❌ Error 1: Declaring as "Catalyst" (3815) when it is a raw chemical (28xx).
👉 Consequence: If Customs determines it's not a prepared catalyst, they may reclassify it, causing delays. However, note that 3815 base rates are sometimes higher or lower depending on the sub-code, but surcharges apply to both.
❌ Error 2: Declaring as "Other Chemicals" (2825) when it is clearly formulated as a Catalyst.
👉 Consequence: Customs may reject the declaration if technical data shows catalytic additives or supports.
❌ Error 3: Ignoring the "122 Clause" (10%). 👉 Consequence: Many importers forget this additional 10% surcharge, leading to unexpected bill shock at customs.
✅ Correct Practice:
"Bismuth Tungstate Photocatalyst, Powder, 99% Purity, For Wastewater Treatment, Model BW-100"
🎯 VII. Conclusion: Professional Declaration, Save Costs!
🎯 Remember the Mnemonic:
🔹 “Chemical vs Catalyst, Check the Purpose First!”
🔹 “US Tariffs are High, 38.7% to 41.5%, Don’t Get Caught!”
🔹 “Section 301 and 122 Clause, Add 35% to Your Cost!”
📌 Pro Tip: If your product is manufactured in Vietnam, Malaysia, or Thailand, you may apply for Section 301 Exclusions or lower tariffs based on origin. Recommend applying for an Advance Ruling (Pre-classification) from US Customs (CBP) to lock in the HS Code and avoid surprises.
📣 Immediate Action:
📞 Contact a Professional Broker + Provide TDS + Apply for HS Code Pre-Ruling
🚀 Ensure your Bismuth Tungstate Catalyst clears smoothly, legally, and cost-effectively!
✨ Professional Clearance Starts with Accurate Classification! 💼 Every cent of duty counts in the age of trade wars!
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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。