vitamin b12 cobalamin
CN → USAI分析
💊 Vitamin B12 (Cobalamin): The Golden Standard in Health Supplements
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Know "Vitamin B12"?
Vitamin B12, chemically known as Cobalamin, is a water-soluble vitamin essential for human health. In international trade, it is strictly categorized based on its state of purity and packaging:
-
Pure Chemical Substance (Single Vitamin):
- Refers to isolated Cobalamin (e.g., Cyanocobalamin, Methylcobalamin) with high purity (>90%), not mixed with other substances.
- Used by pharmaceutical companies or laboratories for formulation.
-
Mixed/Dosed Preparations:
- Refers to Vitamin B12 mixed with other vitamins (e.g., B-Complex), sugars, or excipients.
- Refers to pre-packaged dosage forms (tablets, capsules, liquids) intended for direct consumption.
⚠️ Key Distinction Point:
- If it is a pure chemical powder for industrial/pharmaceutical use → Classified under 2936.
- If it is a mixed preparation or dosage form for health purposes → Classified under 3004.
- Never classify pure chemicals as "dietary supplements" if they are sold in bulk for further processing!
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Purity/State |
|---|---|---|---|
2936.28.00.00 |
Vitamins and their derivatives, pure (excluding those of 2936.10-2936.27) | Pure Vitamin B12 (Cyanocobalamin/Methylcobalamin) powder for pharmaceutical use | ✅ Pure (>90%) |
3004.90.60.00 |
Medicaments consisting of mixed or unmixed products for therapeutic/prophylactic uses, dosed or put up in retail packaging | Pure B12 in retail packaging (e.g., small bottles for direct sale) or dosed forms | ⚠️ Retail/Dosed |
3004.90.90.60 |
Other medicaments (including vitamins, but NOT pure single vitamins in bulk) | Mixed B12 (e.g., B-Complex, B12+Folic Acid) or formulated supplements | ❌ Mixed/Composite |
1302.39.00.00 |
Vegetable saps and extracts, pectic substances, pectinates, agar-agar, etc. | Incorrectly used – B12 is synthetic/bacterial, not plant extract | ❌ Wrong |
🔍 Critical Reminder:
-2936.28.00.00is for bulk pure chemicals. If you sell "Vitamin B12 Powder" to a factory, this is your code.
-3004series is for final consumer products. If you sell "B12 Gummies" or "B12 Shots," use3004.
- Misclassification Risk: Declaring bulk pure powder as3004(retail) may trigger scrutiny if packaging doesn't match. Declaring mixed supplements as2936(pure) will lead to seizure.
💰 III. 2026 Latest Tariff Rate Details (Including Additional Taxes, Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 2936.28.00.00 —— Pure Vitamin B12 (Bulk/Industrial)
| Item | Content |
|---|---|
| Base Rate | 5.3% (ad valorem) |
| USITC Additional Duty | +25% (from USITC Footnote 9903.88.01) |
| IEEPA Additional Duty | +10% (targeting China/HK products, from Nov 10, 2025) |
| Total Tariff Rate | 45.3% (Approx. 5.3% + 25% + 10%) |
| Tax Calculation | CIF Value × 45.3% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:2936.28.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- The 25% is from the Section 301 tariffs on chemical products.
- The 10% is from the IEEPA tariffs on generic goods.
- Total ~45.3% makes importing bulk pure B12 from China to the US highly cost-prohibitive unless sourced from Vietnam/Mexico.
🎯 2. 3004.90.90.60 —— Mixed Vitamin B12 Supplements (Retail/Formulated)
| Item | Content |
|---|---|
| Base Rate | 5.6% (ad valorem) |
| USITC Additional Duty | +25% |
| IEEPA Additional Duty | +10% |
| Total Tariff Rate | 45.6% |
| Tax Calculation | CIF Value × 45.6% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:3004.90.90.60 → FOOTNOTE:9903.88.01 |
📌 Note:
- Even if marketed as "Organic Vegan B12," if it’s a mixed supplement, it falls here.
- The rate is slightly higher due to the "Medicament" classification base rate.
🛠️ IV. Customs Clearance Practical Advice (实战避坑指南)
✅ 1. Required Documents Checklist (Mandatory)
| Document | Required | Description |
|---|---|---|
| ✅ Certificate of Analysis (COA) | ✔️ | Must show purity, active ingredient % (e.g., Cyanocobalamin ≥98%). Critical for distinguishing 2936 vs 3004. |
| ✅ Formula/Ingredients List | ✔️ | For 3004 items, exact breakdown is required. For 2936, just the chemical name. |
| ✅ Product Photos (Packaging & Label) | ✔️ | Must show "Supplement Facts" or "Chemical Grade" clearly. |
| ✅ FCC/USP Monograph Compliance | ✔️ | Proof of pharmaceutical grade (if applicable). |
| ✅ Commercial Invoice | ✔️ | Clearly state: "Pure Vitamin B12 (Cyanocobalamin)" or "Vitamin B12 Supplement Tablets". |
| ✅ Country of Origin Certificate | ✔️ | Essential for determining 301/IEEPA applicability. |
✅ 2. Declaration Tips (Key Mnemonic)
🔥 "Pure is 2936, Mixed is 3004, Label Defines the Path!"
| Scenario | Correct HS Code | Wrong Practice |
|---|---|---|
| Bulk powder, white bag, "For Industrial Use" | 2936.28.00.00 |
Declaring as supplement → Customs may reject due to lack of dosage info |
| Retail bottles, "Dietary Supplement" | 3004.90.90.60 |
Declaring as pure chemical → Misdeclaration penalty |
| B12 + Folic Acid mix | 3004.90.90.60 |
Declaring as "Pure B12" → Seizure |
| Liquid spray, "Energy Boost" | 3004.90.90.60 |
Declaring as "Food Additive" → Wrong code |
✅ 3. Special Cases
| Case | Handling Advice |
|---|---|
| OEM Private Label B12 | Provide client authorization + formula sheet. Avoid claiming "pharmaceutical grade" if not FDA NDC registered. |
| Vegan/B12 from Fermentation | Still 2936 or 3004 depending on purity/mix. Origin of source (bacterial vs synthetic) doesn’t change HS code. |
| Import for Clinical Trials | Apply for Personal Use Import Permit or Investigational New Drug (IND) exemption. May qualify for duty-free under specific research provisions. |
| Small Sample (<$800) | If shipped via courier (de minimis), B12 is EXCLUDED from de minimis exemption (deny_de_minimis). Must pay full duties even if under $800. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Certification Requirements | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 2936.28.00.00 / 3004 |
~45.3% (China) | FDA Compliance (GRAS/DMF) | Highest barrier due to 301/IEEPA |
| 🇨🇳 China | 2929.90.90 / 3004.90.99 |
5-10% | NMPA Registration (if drug) | Low tariff, strict registration |
| 🇪🇺 EU | 2936.28 / 3004.90 |
0-6.5% | REACH Registration + GMP | No 301-type tariffs; REACH is key |
| 🇬🇧 UK | 2936.28 / 3004 |
0-6.5% | MHRA Standards | Post-Brexit rules apply |
| 🇦🇺 Australia | 2936.28 / 3004 |
0-5% | TGA Registration | Strict therapeutic goods regulations |
📌 Conclusion:
- USA is the most expensive market for Chinese B12 imports due to layered tariffs.
- EU/UK are favorable for tariffs but have strict REACH/Pharmaceutical compliance.
- Australia requires TGA listing for health claims, which is costly and time-consuming.
📌 VI. Common Mistakes & Pitfalls (Blood Lessons)
❌ Mistake 1: Declaring "B12 Tablets" as "Chemical Powder" (2936)
👉 Consequence: Customs inspection reveals retail packaging → Penalty + Back Taxes + Detention.
❌ Mistake 2: Not declaring "De Minimis Exclusion" for B12
👉 Consequence: Even if under $800, duties are charged. Ignoring this leads to unexpected costs.
❌ Mistake 3: Ignoring REACH/ECHA Registration for EU Imports
👉 Consequence: Goods held at EU border indefinitely. B12 is an existing substance, but high volume requires compliance.
❌ Mistake 4: Using "Food Additive" HS Code for B12 Supplements
👉 Consequence: B12 is not classified as a standard food additive in many jurisdictions when sold as a supplement. Wrong code → 10% penalty.
✅ Correct Practice:
"Vitamin B12 (Cyanocobalamin), 98% Purity, Bulk Pack, For Pharmaceutical Use Only"
OR
"Vitamin B12 Supplement Tablets, 1000mcg, Retail Pack, Dietary Supplement, NSF Certified"
🎯 VII. Conclusion: Professional Declaration, Save Time, Reduce Costs!
🎯 Remember the Mnemonic:
🔹 "Pure is 2936, Mixed is 3004, Label Defines the Path!"
🔹 "USA Tariff is High, Origin Matters, De Minimis Doesn't Apply!"
🔹 "HS Code Decides Fate, 45% Difference, Declare Wrong, Pay Extra!"
📌 Pro Tip:
If your B12 is originally manufactured in Vietnam, India, or Mexico, you may avoid IEEPA/301 tariffs (rate drops to 0-5%).
Recommend Advance Ruling or Pre-classification to confirm if your specific formulation qualifies as "Pure" vs "Mixed."
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide COA + Verify Country of Origin
🚀 Ensure your B12 clears customs smoothly, avoids delays, and maximizes profit margins!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every Penny of Your Cost is Worth Precise Calculation!
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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。