分子生物学培养基
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3821000090 | 15.0% | CN | US | Official Doc |
| 3002590000 | 10.0% | CN | US | Official Doc |
| 3821000010 | 15.0% | CN | US | Official Doc |
| 3002905250 | 10.0% | CN | US | Official Doc |
| 3822190080 | 10.0% | CN | US | Official Doc |
AI Analysis
🧬 Molecular Biology Culture Media (培养基)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 1. Product Definition & Classification: Do You Really Understand "Molecular Biology Media"?
Molecular biology culture media are specialized chemical/biological preparations used to sustain, grow, or preserve cells, tissues, or microorganisms for research and diagnostic purposes. In international trade, these products are primarily classified based on their composition and intended use, falling mainly under two categories: * Chemical/Biological Preparations (General): Media defined primarily by their nutrient composition, often categorized under "Other preparations" in Chapter 38. * Diagnostic/Laboratory Reagents: Media specifically designed for diagnostic purposes or laboratory testing, which may fall under Chapter 30 (Pharmaceuticals) or Chapter 38 (Laboratory preparations).
⚠️ Key Distinction Point: - If the medium is a general nutrient base (e.g., LB broth, agar) without specific diagnostic claims or pharmaceutical properties → Typically classified under 3821.00. - If the medium is specifically formulated for cell culture or diagnostic microbial detection with specific proprietary formulations → May fall under 3002.59 or 3002.90 (Cell cultures/Microbial preparations). - If the medium is used for virus transport or specific diagnostic kits → May fall under 3821.00 (with specific subheadings) or 3822.19 (Diagnostic reagents).
📦 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Tax Rate (China to US) |
|---|---|---|---|
3821.00.00.90 |
Culture media; other preparations | General nutrient media, non-specific biological preparations, "catch-all" for chemical/biological preparations not elsewhere specified | 15.0% |
3002.59.00.00 |
Cell cultures; other related substances | Media containing or supporting cell cultures,配套 materials for cell culture | 10.0% |
3821.00.00.10 |
Virus transport media | Media specifically for transporting viruses, matches usage completely, no material conflict | 15.0% |
3002.90.52.50 |
Microbial cultures & similar preparations | Preparations for microbial culture or cell culture, fits "microbial culture and similar products" attribute | 10.0% |
3822.19.00.40 |
Diagnostic/Laboratory reagents | Lab/diagnostic use media, fits "diagnostic or laboratory reagent" definition | 10.0% |
🔍 Key Reminder: - General Purpose Media: Most standard molecular biology media (e.g., TSB, SDA) are classified under 3821.00.00.90. - Cell Culture Specific: If the media is explicitly for cell culture (e.g., DMEM, RPMI) and marketed as part of a biological product, it may be classified under 3002.59.00.00. - Diagnostic Use: If the media is sold as part of a diagnostic kit or for virus transport, it may fall under 3821.00.00.10 or 3822.19.00.40. - Microbial/Diagnostic Preparations: Specialized formulations for microbial detection may be classified under 3002.90.52.50.
💰 3. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Additions)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: From November 10, 2025 (including subsequent imports)
🎯 1. 3821.00.00.90 — General Culture Media (Chemical/Biological Preparations)
| Item | Content |
|---|---|
| Base Tariff Rate | 5.0% (ad valorem) |
| Section 301 Tariff (25%) | +0.0% (Note: Some 3821 items may be subject to Section 301, but according to the provided data, it is 0.0% for this specific subheading in the given context, or the "122 Clause" applies) |
| "122 Clause" Tariff | +10.0% (Specific surcharge applied to this category) |
| Total Tariff Rate | 15.0% |
| Tax Calculation | CIF Value × 15.0% |
| De Minimis Eligibility | ❌ Not Applicable (Typically, biological/chemical preparations are not eligible for de minimis exemption under standard thresholds) |
| Legal Basis Path | Base: 5.0% + 122 Clause: 10.0% → Total: 15.0% |
📌 Explanation: - The 5% base tariff is the standard WTO rate for Chapter 38 preparations. - The 10% "122 Clause" tariff is a specific surcharge applied to this category of biological/chemical preparations. - Note: Depending on specific U.S. Trade Representative (USTR) rulings, some 3821 items may also be subject to Section 301 tariffs (25%), but the provided data indicates a total of 15% (5% base + 10% surcharge). Always verify the latest USTR Exclusion List.
🎯 2. 3002.59.00.00 — Cell Culture Media (Cell Cultures & Related Substances)
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% |
| Section 301 Tariff | +0.0% |
| "122 Clause" Tariff | +10.0% |
| Total Tariff Rate | 10.0% |
| Tax Calculation | CIF Value × 10.0% |
| De Minimis Eligibility | ❌ Not Applicable |
| Legal Basis Path | Base: 0.0% + 122 Clause: 10.0% → Total: 10.0% |
📌 Note: - Cell culture media often benefit from a 0% base tariff due to its classification under Chapter 30 (Pharmaceuticals/Biologicals). - The 10% surcharge still applies. This is often a more favorable classification than general chemical media (3821) if the product can be legitimately classified under 3002.
🎯 3. 3821.00.00.10 — Virus Transport Media
| Item | Content |
|---|---|
| Base Tariff Rate | 5.0% |
| Section 301 Tariff | +0.0% |
| "122 Clause" Tariff | +10.0% |
| Total Tariff Rate | 15.0% |
| Tax Calculation | CIF Value × 15.0% |
| De Minimis Eligibility | ❌ Not Applicable |
| Legal Basis Path | Base: 5.0% + 122 Clause: 10.0% → Total: 15.0% |
📌 Explanation: - This specific subheading is for media used in virus transport. - It matches the product's use case completely and has no material conflicts. - The tariff structure is identical to general media (3821.00.00.90).
🎯 4. 3002.90.52.50 — Microbial Culture Preparations
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% |
| Section 301 Tariff | +0.0% |
| "122 Clause" Tariff | +10.0% |
| Total Tariff Rate | 10.0% |
| Tax Calculation | CIF Value × 10.0% |
| De Minimis Eligibility | ❌ Not Applicable |
| Legal Basis Path | Base: 0.0% + 122 Clause: 10.0% → Total: 10.0% |
📌 Note: - This classification applies if the media is inferred to be for microbial cultures or similar preparations used in diagnostics or research. - It offers a 0% base rate, making it attractive for specialized microbial media.
🎯 5. 3822.19.00.40 — Diagnostic/Laboratory Reagent Media
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% |
| Section 301 Tariff | +0.0% |
| "122 Clause" Tariff | +10.0% |
| Total Tariff Rate | 10.0% |
| Tax Calculation | CIF Value × 10.0% |
| De Minimis Eligibility | ❌ Not Applicable |
| Legal Basis Path | Base: 0.0% + 122 Clause: 10.0% → Total: 10.0% |
📌 Note: - This code is for diagnostic or laboratory reagents. - If your molecular biology media is sold as part of a diagnostic kit or for laboratory testing purposes, this classification may apply. - It also offers a 0% base rate.
🛠️ 4. Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance Guide)
✅ 1. Required Documentation Checklist (None is Optional)
| Document | Must Provide | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must include composition, pH, intended use (e.g., "for cell culture," "for microbial isolation"), and storage conditions. |
| ✅ Product Photos (Label/Packaging) | ✔️ | Clear images showing the label, batch number, and any safety warnings. |
| ✅ Certificate of Analysis (COA) | ✔️ | Essential for biological/chemical products to verify purity and composition. |
| ✅ Commercial Invoice | ✔️ | Must clearly state the HS Code, description, and value. Use precise terminology (e.g., "Culture Medium for Molecular Biology"). |
| ✅ Material Safety Data Sheet (MSDS/SDS) | ✔️ | Required for all chemical/biological shipments to ensure safe handling and compliance with DOT/IATA regulations. |
| ✅ Usage Declaration | ✔️ | Explicitly state the intended use (e.g., "Research Use Only," "Diagnostic," "Cell Culture Support"). |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Precise Description, Clear Use, Correct HS Code!"
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| General Nutrient Media (e.g., LB Broth) | 3821.00.00.90 - "Culture Medium, Chemical Composition" |
Misdeclare as "Food Supplement" or "Pharmaceutical" → Customs Delay |
| Cell Culture Media (e.g., DMEM) | 3002.59.00.00 - "Cell Culture Medium" |
Misdeclare as general chemical → Higher Tax (15% vs 10%) |
| Virus Transport Media | 3821.00.00.10 - "Virus Transport Medium" |
Vague description → Classification Dispute |
| Diagnostic Kit Media | 3822.19.00.40 - "Diagnostic Reagent, Culture Media" |
Misdeclare as general lab reagent → Potential Tax Discrepancy |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM/Private Label Media | Provide customer order + formula sheet. Avoid claiming proprietary blends if not necessary, to prevent additional scrutiny. |
| Media with Antibiotics/Antimicrobials | Ensure the declaration includes the presence of antibiotics. This may trigger FDA or additional regulatory reviews. |
| Shipment to Research Institutions | Clearly mark as "Research Use Only (RUO)." Commercial use may require different declarations. |
| Small Quantity Samples | Even for samples, provide full documentation (COA, SDS). De minimis exemptions are not reliable for biological/chemical goods. |
🌍 5. Global Main Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3821.00.00.90 or 3002.59.00.00 |
10%~15% (incl. surcharges) | SDS, COA, FDA Registration (if applicable) | Highest scrutiny for biological goods. Verify 301 exclusions. |
| 🇨🇳 China | 3821.00 or 3002.59 |
0%~5% | CCC (if applicable), Quality Inspection | Import of biological products requires NMPA/FDA approval for commercial use. |
| 🇪🇺 EU | 3822.00 or 3002.90 |
0%~6.5% (if EBA/GSP) | REACH Registration, SDS, CE Mark (if medical device component) | REACH compliance is critical for chemical components. |
| 🇬🇧 UK | 3822.00 |
0%~6.5% | UKCA Mark, REACH UK | Post-Brexit rules apply. Check for specific biological import licenses. |
| 🇯🇵 Japan | 3822.19 or 3002.90 |
0%~10% | MLIT Approval, Pharmaceutical Affairs Law | Strict regulation for cell culture media and diagnostic reagents. |
📌 Conclusion: - USA: Highest tariff impact due to surcharges. Accurate HS classification is critical to minimize costs (10% vs 15%). - EU/UK: REACH compliance is the biggest hurdle for chemical components. - China: Import regulations for biological products are stringent. Ensure proper licensing for commercial use.
📌 6. Common Mistakes & Pitfall Avoidance (Lessons Learned the Hard Way)
❌ Mistake 1: Declaring "Cell Culture Media" under general chemical codes (3824)
👉 Consequence: 15% Tariff instead of 10%. Correction: Use 3002.59.00.00 for cell culture-specific media.
❌ Mistake 2: Vague Description: "Biological Chemicals"
👉 Consequence: Customs Detention for lack of specificity. Correction: Use precise terms like "LB Agar Powder" or "DMEM Cell Culture Medium."
❌ Mistake 3: Ignoring SDS/MSDS Requirements
👉 Consequence: Shipment Rejection or Return to Sender due to DOT/IATA non-compliance. Correction: Always provide an up-to-date SDS.
❌ Mistake 4: Assuming De Minimis Exemption Applies
👉 Consequence: Penalties for undervalued/undocumented biological shipments. Correction: Provide full documentation for all shipments, regardless of value.
✅ Correct Practice:
"DMEM Cell Culture Medium, Powder Form, for Mammalian Cell Culture, RUO, Contains No FBS, HS Code: 3002.59.00.00, With SDS & COA"
🎯 7. Conclusion: Professional Declaration, Time-Saving, Cost-Effective!
🎯 Remember the Mantras:
🔹 "Cell Culture = 3002 (10%) | General Media = 3821 (15%)"
🔹 "SDS & COA are Non-Negotiable!"
🔹 "Vague Descriptions Lead to Delays!"
📌 Pro Tip:
If your product is classified under 3002.59.00.00 or 3822.19.00.40, you can save 5% in tariffs compared to general chemical media. Always provide detailed usage documentation to support the 3002/3822 classification.
📣 Take Action Now:
📞 Contact a Professional Customs Broker + Provide Product Specs + Verify HS Code
🚀 Ensure Smooth Clearance, Efficient Export, and Maximized Profit!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Cent of Cost Should Be Precisely Calculated!
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.