Bismuth Tungstate Catalyst
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2825909000 | 38.7% | CN | US | Official Doc |
| 3815905000 | 40.0% | CN | US | Official Doc |
| 2841800050 | 40.5% | CN | US | Official Doc |
| 3815901000 | 41.5% | CN | US | Official Doc |
| 2825903000 | 40.5% | CN | US | Official Doc |
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βοΈ Bismuth Tungstate Catalyst (Bismuth Tungstate Catalyst)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy π 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."
β οΈ Critical Distinction Point: - If the product is a raw chemical powder without specific catalytic pretreatment or certification β 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...") β It is classified as a Catalyst (Chapter 38).
π¦ 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 |
π 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.
π° III. 2026 Latest Tariff Rate Details (Including Surcharge & Policy Add-ons)
β Applicable Country: USA (US) β Origin: China (CN) β Effective Time: 2025 November 10 onwards (Including subsequent imports)
π― 1. 2825.90.90.00 ββ 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 Γ 38.7% |
| De Minimis Eligibility | β Not Allowed (High duty rate) |
| Legal Basis Path | Base: 3.7% β Section 301: 25% β 122 Clause: 10% |
π 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.
π― 2. 3815.90.50.00 ββ 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 Γ 40.0% |
| De Minimis Eligibility | β Not Allowed |
| Legal Basis Path | Base: 5.0% β Section 301: 25% β 122 Clause: 10% |
π 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."
π― 3. 2841.80.00.50 ββ 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 Γ 40.5% |
| De Minimis Eligibility | β Not Allowed |
| Legal Basis Path | Base: 5.5% β Section 301: 25% β 122 Clause: 10% |
π Note: - Most chemically accurate for "Tungstate" salts. - Total duty is 40.5%. Higher base rate (5.5%) than oxides.
π― 4. 3815.90.10.00 ββ 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 Γ 41.5% |
| De Minimis Eligibility | β Not Allowed |
| Legal Basis Path | Base: 6.5% β Section 301: 25% β 122 Clause: 10% |
π 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.
π― 5. 2825.90.30.00 ββ 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 Γ 40.5% |
| De Minimis Eligibility | β Not Allowed |
| Legal Basis Path | Base: 5.5% β Section 301: 25% β 122 Clause: 10% |
π Note: - Specific to tungsten oxides. - Total duty 40.5%. Same as Tungstates.
π οΈ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
β 1. Preparation Checklist (ηΌΊδΈδΈε― / Mandatory)
| Document | Mandatory? | Description |
|---|---|---|
| β Technical Data Sheet (TDS) | βοΈ | Must clearly state chemical formula ($Bi_2WO_6$), purity, and primary use (e.g., "Photocatalyst for water treatment"). |
| β Certificate of Analysis (COA) | βοΈ | Confirms composition and purity levels. |
| β Product Photos | βοΈ | Clear images of packaging, label, and the powder/liquid state. |
| β Commercial Invoice | βοΈ | Must accurately describe the goods. Avoid vague terms like "Chemical." Use "Bismuth Tungstate Catalyst" or "Tungstate Compound." |
| β Proof of Use | βοΈ | If classifying as 3815 (Catalyst), provide documents showing it is used as a catalyst in a reaction. |
| β Packaging List | βοΈ | Detail net/gross weight and number of packages. |
β 2. Declaration Tips (Key Mnemonic)
π₯ βUse Defines Code, Chemistry Defines Chapter!β
| 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" β Higher base duty |
| Sold specifically as Photocatalyst for wastewater treatment | 3815.90.50.00 |
Describing as "Tungsten Oxide" β Potential misclassification |
| High-purity Tungstate Salt for lab reagents | 2841.80.00.50 |
Misdeclaring as "Catalyst" β Unjustified higher rate |
| Complex Catalyst Mixture | 3815.90.10.00 |
Under-declaring as simple oxide |
β 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. |
π V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Remarks |
|---|---|---|---|---|
| πΊπΈ USA | 3815.90.50.00 |
40.0% (Catalyst) | No specific | High surcharge applies |
| π¨π³ China | 2841.80.00.50 |
5% - 8% | No specific | Lower duty if imported back |
| πͺπΊ EU | 2825.90.00 |
0% - 6% | REACH | No Section 301 equivalent |
| π―π΅ Japan | 2825.90.00 |
3.0% - 5% | None | Moderate duty |
π 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.
π VI. Common Errors & Pitfalls (Blood & Tears Lessons)
β Error 1: Declaring as "Catalyst" (3815) when it is a raw chemical (28xx).
π 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.
β Error 2: Declaring as "Other Chemicals" (2825) when it is clearly formulated as a Catalyst.
π Consequence: Customs may reject the declaration if technical data shows catalytic additives or supports.
β Error 3: Ignoring the "122 Clause" (10%). π Consequence: Many importers forget this additional 10% surcharge, leading to unexpected bill shock at customs.
β Correct Practice:
"Bismuth Tungstate Photocatalyst, Powder, 99% Purity, For Wastewater Treatment, Model BW-100"
π― VII. Conclusion: Professional Declaration, Save Costs!
π― Remember the Mnemonic:
πΉ βChemical vs Catalyst, Check the Purpose First!β
πΉ βUS Tariffs are High, 38.7% to 41.5%, Donβt Get Caught!β
πΉ βSection 301 and 122 Clause, Add 35% to Your Cost!β
π 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.
π£ Immediate Action:
π Contact a Professional Broker + Provide TDS + Apply for HS Code Pre-Ruling
π Ensure your Bismuth Tungstate Catalyst clears smoothly, legally, and cost-effectively!
β¨ Professional Clearance Starts with Accurate Classification! πΌ Every cent of duty counts in the age of trade wars!
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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.