不含胰酶提取物的uzymes
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3507902000 | 10.0% | CN | US | Official Doc |
| 3507907000 | 35.0% | CN | US | Official Doc |
| 3822190040 | 10.0% | CN | US | Official Doc |
| 3822190080 | 10.0% | CN | US | Official Doc |
AI Analysis
🧪 Uzymes (Without Pancreatic Extracts)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What Exactly Are "Uzymes"?
"Uzymes" (typically referring to Urease or specific enzyme preparations) without pancreatic extracts are biological preparations used in various industrial, agricultural, or laboratory applications. The key distinction lies in the nature of the enzyme and its processing status.
The import summary provided highlights four potential classifications based on specific attributes: 1. Enzyme Preparations (3507): If the product is a biological enzyme preparation, even without pancreatic extracts, it falls under Chapter 35. 2. Laboratory/Reagent Chemicals (3822): If the product is primarily used as a diagnostic reagent or laboratory chemical, it may fall under Chapter 38.
⚠️ Key Distinction Point:
- Is it a bulk enzyme product for industrial/agricultural use? → Likely 3507.
- Is it a specific reagent for diagnostic or laboratory testing? → Likely 3822.
- Does the term "Uzymes" imply a branded enzyme concentrate? → Usually 3507.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the specific HS Codes and their corresponding rationales:
| HS Code | Product Description | Rationale from Data | Tax Rate |
|---|---|---|---|
| 3507.90.20.00 | Other Enzyme Preparations | "Uzymes" without pancreatic extracts are classified as enzyme preparations. The exclusion of pancreatic extracts does not change its nature as an enzyme. | 10.0% |
| 3507.90.70.00 | Other Enzyme Preparations | "Enzymes" match the attribute of "enzymes/modulated enzymes." "Without pancreatic extract" is a specific exclusion within the category of modulated enzymes. | 35.0% |
| 3822.19.00.40 | Other Diagnostic/Laboratory Reagents | "Enzymes" are considered biochemical reagents. The product fits the attribute of "diagnostic or laboratory reagents." | 10.0% |
| 3822.19.00.80 | Other Diagnostic/Laboratory Reagents | Enzymes are biochemical reagents fitting the "diagnostic or laboratory reagent" material/use attribute. | 10.0% |
🔍 Critical Reminder:
- 3507 is for Enzyme Preparations (industrial/agricultural/biochemical use).
- 3822 is for Reagents (diagnostic/analytical use).
- The Tariff Difference is massive: 10% vs. 35%. Misclassification can lead to significant underpayment of duties.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (for subsequent imports)
🎯 1. 3507.90.20.00 – Other Enzyme Preparations (Low Tax Scenario)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Surtax | 0.0% |
| IEEPA Add-on Tariff | +10% (Targeting China/HK products, effective Nov 10, 2025) |
| Total Tax Rate | 10.0% |
| Tax Calculation | CIF Value × 10% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → USITC:3507.90.20.00 |
📌 Explanation:
- This is the most favorable classification for bulk enzyme preparations.
- The 10% comes solely from the IEEPA (International Emergency Economic Powers Act) surcharge.
- No Section 301 additional duty applies here.
🎯 2. 3507.90.70.00 – Other Enzyme Preparations (High Tax Scenario)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on Tariff | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3507.90.70.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- This classification triggers the 25% Section 301 surcharge.
- Combined with the 10% IEEPA, the total cost is 3.5 times higher than the 10% scenario.
- Why the difference? Subheading .70 often covers specific enzyme preparations subject to stricter trade restrictions or different historical classifications compared to .20.
🎯 3. 3822.19.00.40 / 3822.19.00.80 – Other Laboratory/Diagnostic Reagents (Low Tax Scenario)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Surtax | 0.0% |
| IEEPA Add-on Tariff | +10.0% |
| Total Tax Rate | 10.0% |
| Tax Calculation | CIF Value × 10% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → USITC:3822.19.00.40 / .80 |
📌 Explanation:
- If the product is strictly a diagnostic reagent (not for general industrial use), it falls here.
- Tax rate is 10%, same as the low-tax enzyme category.
- Key is proving primary use is diagnostic/analytical.
🛠️ IV. Customs Clearance Practical Advice (实战避坑指南)
✅ 1. Preparation Checklist (Missing Any = Delays)
| Material | Required? | Notes |
|---|---|---|
| Product Specification Sheet | ✔️ | Must specify enzyme type, activity units, source organism, and lack of pancreatic extracts. |
| Usage Description | ✔️ | Clearly state: "Industrial/Agricultural Use" (for 3507) OR "Diagnostic Reagent" (for 3822). |
| Product Photos | ✔️ | Include label, packaging, and active ingredient list. |
| Third-Party Lab Report | ✔️ | Certificate of Analysis (CoA) confirming enzyme identity and absence of pancreatic components. |
| Commercial Invoice | ✔️ | Accurate description: "Urease Enzyme Preparation, Without Pancreatic Extracts, for [Use]." |
| Origin Certificate | ✔️ | If not CN, may reduce IEEPA tax. |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 “Define Use First, Then Classify! 3507 for Bulk, 3822 for Reagents!”
| Scenario | Correct HS Code | Wrong Practice |
|---|---|---|
| Bulk Enzyme for Animal Feed/Fermentation | 3507.90.20.00 (10%) |
Declare as "Reagent" → Risk of audit. |
| Lab Diagnostic Kit Ingredient | 3822.19.00.40 (10%) |
Declare as "Industrial Enzyme" → May face higher scrutiny. |
| Specific Enzyme Preparation (High Risk) | 3507.90.70.00 (35%) |
Under-declaring as .20 → Severe Penalty! |
| Pancreatic Extract Included | Different HS (Not in scope) | ❌ Must exclude if declaring "Without." |
📌 Note on "Without Pancreatic Extracts":
This phrase is critical. It excludes the product from certain high-tariff animal-derived categories if they exist. Ensure the declaration explicitly states "Free of Pancreatic Extracts" to avoid misclassification.
✅ 3. Special Cases Handling
| Case | Recommendation |
|---|---|
| OEM Custom Enzyme | Provide formulation sheet to prove it's a standard enzyme preparation. |
| Enzyme for Human Diagnostic Use | Must prove it's for in vitro diagnostics → Classify under 3822. |
| Enzyme for Animal Feed | Classify under 3507. Ensure no animal-derived contaminants. |
| Mixed Use | Declare primary use. If ambiguous, consult a customs broker for pre-classification. |
🌍 V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tax Rate (CN Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3507.90.20.00 / 3822.19.00.40 |
10% | FDA (if applicable), SDS | Avoid 3507.90.70.00 unless necessary. |
| 🇺🇸 USA | 3507.90.70.00 |
35% | FDA, SDS | High risk, high cost. |
| 🇨🇳 China | 3507.90.20.00 |
0%~5% | N/A | Low tax for re-import or domestic sale. |
| 🇪🇺 EU | 3507.90 |
0% | REACH, SDS | No extra surcharges. |
| 🇬🇧 UK | 3507.90 |
0% | UK REACH | Post-Brexit rules apply. |
📌 Conclusion:
- USA has the highest complexity due to Section 301 and IEEPA.
- Choosing the right subheading within 3507 (.20 vs .70) is critical for cost control.
- 3822 is a viable alternative if the product is strictly a diagnostic reagent.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring "Uzymes" generically without specifying "Without Pancreatic Extracts."
👉 Result: Customs may assume it contains restricted animal products → Higher Tax or Seizure.
❌ Mistake 2: Confusing .20 and .70 under 3507.
👉 Result: Paying 35% instead of 10% → 25% unnecessary loss.
❌ Mistake 3: Using "Reagent" label for an industrial enzyme.
👉 Result: FDA or USDA may require additional permits → Delay.
❌ Mistake 4: Ignoring IEEPA Surcharge.
👉 Result: Under-declaring tax → Penalties + Back Taxes.
✅ Correct Declaration Example:
"Urease Enzyme Preparation (Uzymes), Without Pancreatic Extracts, For Industrial Fermentation Use, CAS No. [XXX], HS Code 3507.90.20.00"
🎯 VII. Conclusion: Professional Classification Saves Money!
🎯 Remember the Rules:
🔹 "3507.20: 10% | 3507.70: 35% | 3822: 10%"
🔹 "Define Use: Industrial → 3507.20 | Diagnostic → 3822"
🔹 "Always Exclude Pancreatic Extracts in Description"
📌 Pro Tip:
If your enzyme is originating from Vietnam, Mexico, or Thailand, you may exempt from IEEPA 10%, reducing total tax to 0% (for 3507.20) or 25% (for 3507.70).
Always Apply for Pre-Ruling for high-value shipments.
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide CoA + Apply for HS Code Pre-Ruling
🚀 Clear Customs Smoothly, Maximize Profit!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent Counts in Duty Savings!
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.