钨酸钠，工业级
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2841800050 | 40.5% | CN | US | Official Doc |
| 2825903000 | 40.5% | CN | US | Official Doc |
| 3822190080 | 10.0% | CN | US | Official Doc |
| 2825909000 | 38.7% | CN | US | Official Doc |
| 2842100000 | 38.7% | CN | US | Official Doc |
AI Analysis
🧪 Sodium Tungstate, Industrial Grade (Sodium Tungstate)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Clearance Strategy
📌 Part 1: Product Definition & Classification: Do You Really Understand "Sodium Tungstate"?
Sodium Tungstate (Na₂WO₄·2H₂O or anhydrous) is a key inorganic tungsten salt widely used in metallurgy, chemical industry, textile dyeing, and catalysts. In international trade, its classification depends heavily on its purity, intended use, and physical form. It is generally classified under two main chapters: Chapter 28 (Inorganic Chemicals) or Chapter 38 (Miscellaneous Chemical Products).
⚠️ Key Distinction Point:
- If used as a raw material for industrial processes (e.g., steel alloying, catalysts) → Classified under Chapter 28 (Inorganic Chemicals).
- If sold as a laboratory reagent or diagnostic agent → Classified under Chapter 38 (Miscellaneous Chemical Products).
- Industrial Grade typically implies bulk use in manufacturing, pointing towards Chapter 28.
📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Purity/Form |
|---|---|---|---|
2841.80.00.50 |
Tungstates (other than ammonium tungstate) | Industrial raw material, chemical synthesis | ✅ High purity industrial grade |
2825.90.30.00 |
Other inorganic compounds of tungsten | General inorganic salts, metal oxide precursors | ✅ Industrial grade |
3822.19.00.80 |
Laboratory Reagents / Diagnostic Kits | Lab testing, analytical chemistry use | ✅ Analytical/Reagent grade |
2825.90.90.00 |
Other inorganic metal salts | General industrial chemicals, low-specificity use | ✅ Bulk industrial grade |
2842.10.00.00 |
Reference for Inorganic Salts Logic | Incorrect for Tungsten, but shows logic for other salts | ❌ Not applicable to Tungsten |
🔍 Critical Reminder:
- Industrial Grade Sodium Tungstate is primarily an inorganic chemical → Should be classified under Chapter 28 (2841.80or2825.90).
- If the product is marketed specifically as a "Laboratory Reagent" with certified purity for analysis → Can be classified under Chapter 38 (3822.19).
- Never classify as2842.10.00.00(Vanadates) just for logical comparison; it is legally incorrect for Tungsten.
💰 Part 3: 2026 Latest Tariff Rate Breakdown (Including Additional Taxes & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (Including subsequent imports)
🎯 1. 2841.80.00.50 —— Tungstates (Specifically Sodium Tungstate)
| Item | Content |
|---|---|
| Base Duty Rate | 5.5% (ad valorem) |
| Section 301 Duty | +25.0% |
| Section 122 Duty | +10.0% |
| Total Duty Rate | 40.5% |
| Tax Calculation | CIF Value × 40.5% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Section 301: 9903.01.25 → Section 122: 9903.01.24 → USITC: 2841.80.00.50 → FOOTNOTE: 9903.88.01 |
📌 Explanation:
- "Section 301 Duty 25%": From the US Trade Act Section 301 regarding Chinese imports.
- "Section 122 Duty 10%": Additional levy under Section 122 of the Trade Act.
- Total 40.5%: This is the most accurate classification for industrial-grade Sodium Tungstate. High tariff!
🎯 2. 2825.90.30.00 —— Other Inorganic Compounds of Tungsten
| Item | Content |
|---|---|
| Base Duty Rate | 5.5% |
| Section 301 Duty | +25.0% |
| Section 122 Duty | +10.0% |
| Total Duty Rate | 40.5% |
| Tax Calculation | CIF × 40.5% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | IEEPA: 9903.01.25 → IEEPA: 9903.01.24 → USITC: 2825.90.30.00 → FOOTNOTE: 9903.88.01 |
📌 Note:
- Same tariff rate as2841.80.00.50.
- Used if specific "Tungstates" heading (2841) is deemed less appropriate by customs, but still falls under inorganic tungsten compounds.
🎯 3. 3822.19.00.80 —— Laboratory Reagents (If Applied as Reagent)
| Item | Content |
|---|---|
| Base Duty Rate | 0.0% |
| Section 301 Duty | 0.0% |
| Section 122 Duty | +10.0% |
| Total Duty Rate | 10.0% |
| Tax Calculation | CIF × 10.0% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | IEEPA: 9903.01.24 → USITC: 3822.19.00.80 → FOOTNOTE: 9903.88.01 |
📌 Crucial Condition:
- This ONLY applies if the product is explicitly marketed, labeled, and sold as a Laboratory Reagent or Diagnostic Agent.
- Industrial Grade products sold in bulk drums for manufacturing should NOT use this code unless you have specific documentation proving reagent-grade use. Misclassification can lead to audits.
🎯 4. 2825.90.90.00 —— Other Inorganic Metal Salts (Fallback)
| Item | Content |
|---|---|
| Base Duty Rate | 3.7% |
| Section 301 Duty | +25.0% |
| Section 122 Duty | +10.0% |
| Total Duty Rate | 38.7% |
| Tax Calculation | CIF × 38.7% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | IEEPA: 9903.01.25 → IEEPA: 9903.01.24 → USITC: 2825.90.90.00 → FOOTNOTE: 9903.88.01 |
📌 Note:
- A broader category if2841or2825.90.30is contested.
- Still a high tariff (38.7%) due to Section 301 and 122 duties.
🛠️ Part 4: Customs Clearance Practical Advice (实战避坑指南)
✅ 1. Preparation Checklist (Must-Haves)
| Document | Mandatory | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must state purity (%), physical form (powder/crystal), and intended use. |
| ✅ MSDS (Safety Data Sheet) | ✔️ | Essential for chemical clearance. |
| ✅ Commercial Invoice | ✔️ | Clearly state "Sodium Tungstate, Industrial Grade" or "Laboratory Reagent" depending on classification. |
| ✅ Certificate of Analysis (COA) | ✔️ | Proves purity level. Critical if claiming 3822.19 (Reagent) status. |
| ✅ Packing List | ✔️ | Detail net/gross weight. Avoid mixing industrial and lab grades in one shipment. |
| ✅ Origin Certificate | ✔️ | If applicable for non-China origins (but here we assume CN origin for high tariffs). |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Know Your Use: Industrial vs. Lab!"
| Scenario | Correct Declaration | Wrong Approach |
|---|---|---|
| Industrial Bulk Use (Steel, Catalysts) | 2841.80.00.50 or 2825.90.30.00 |
Misdeclare as 3822.19 → High Risk of Penalty |
| Lab Reagent (Certified Purity for Testing) | 3822.19.00.80 |
Declare as 2841.80 → Pay 30.5% extra tax unnecessarily |
| Mixed Shipment | Split Declaration | Combine → Customs may reject or audit entire shipment |
| Product Name | Use English Name: "Sodium Tungstate" | Use Chinese Pinyin only → Delays |
✅ 3. Special Circumstances Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Grade | Provide client specifications. If it's not standard lab grade, stick to Chapter 28. |
| High Purity (>99.9%) | If sold as "Analytical Reagent," try 3822.19.00.80 to save 30.5% in tariffs. Must have COA. |
| Tungsten Recovery Waste | If it's a by-product with impurities, discuss with customs broker if it falls under waste chemicals (different HS). |
| Dual-Use Items | Sodium Tungstate is generally not dual-use, but verify if specific formulations are restricted. |
🌍 Part 5: Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate | Certification | Note |
|---|---|---|---|---|
| 🇺🇸 USA | 2841.80.00.50 (Industrial) |
40.5% | None specific | High tariff due to Section 301 & 122. |
| 🇨🇳 China | 2841.80.00.50 |
~5-10% | None | Low duty, easy import. |
| 🇪🇺 EU | 2841.80.00 |
3.7% | REACH Registration | No additional punitive tariffs. |
| 🇬🇧 UK | 2841.80.00 |
3.7% | UK REACH | Post-Brexit alignment with EU. |
| 🇯🇵 Japan | 2841.80.00 |
3.0-6.0% | JIS Standard | Low duty, strict quality checks. |
📌 Conclusion:
- USA is the most expensive market due to 40.5% combined duties.
- EU/UK/Japan are significantly cheaper (~3-6%).
- For US imports, verify if "Laboratory Reagent" classification (3822.19) is legally justifiable to reduce tax to 10%. This is a major cost-saving opportunity if the product meets reagent standards.
📌 Part 6: Common Mistakes & Pitfalls (Blood & Tears Lessons)
❌ Mistake 1: Declaring Industrial Grade Sodium Tungstate as Lab Reagent (3822.19) without proof.
👉 Consequence: Customs audit, seizure, or back-payment of duties + penalties.
❌ Mistake 2: Using 2842.10.00.00 (Vanadates) for Tungsten.
👉 Consequence: HS Code Error. Customs will reclassify and charge correct tariff, plus delay fees.
❌ Mistake 3: Ignoring Section 122 Duty.
👉 Consequence: Underpayment by 10%. Customs will issue a invoice for the difference + interest.
❌ Mistake 4: Poor Product Naming.
👉 Consequence: "Tungsten Salt" is too vague. Must specify "Sodium Tungstate."
✅ Correct Practice:
"Sodium Tungstate, Industrial Grade, Na₂WO₄, Purity ≥98%, For Catalyst Use, Bulk Drum" →
2841.80.00.50
"Sodium Tungstate, Analytical Reagent, ACS Grade, 500g Bottle" →3822.19.00.80
🎯 Part 7: Conclusion: Professional Declaration, Save Cost, Ensure Compliance!
🎯 Remember the Mantra:
🔹 "Industrial = 40.5% Lab = 10%!"
🔹 "Check Purity & Use: One wrong digit, thousands in extra tax!"
🔹 "Don't mix Industrial and Lab grades in one BL!"
📌 Pro Tip:
If your Sodium Tungstate is 99.9% pure and sold in small quantities for lab testing, STRONGLY consider classifying it under
3822.19.00.80to save 30.5% in tariffs. Ensure your Commercial Invoice and COA clearly state "Laboratory Reagent" or "Analytical Grade."
📣 Immediate Action:
📞 Contact your Customs Broker. Provide Product Spec Sheet. Decide on Industrial vs. Reagent status based on your actual sales and product purity.
🚀 Clear your goods smoothly, maximize profit, and stay compliant!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every cent of your cost deserves precise calculation!
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.