antioxidant compound
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AI分析
🧪 Antioxidant Compound (Chemical Preservatives & Health Additives)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Compliance Strategy
📌 I. Product Definition & Classification: Do You Really Know What "Antioxidant Compound" Is?
"Antioxidant Compound" is not a single chemical entity but a category of substances used to prevent oxidation in various industries. In international trade, classification depends entirely on chemical structure and primary application. They are generally categorized into two main groups:
Industrial/Anti-oxidants (Hydrocarbon-based): Often derived from petroleum or synthetic processes, used in lubricants, plastics, fuels, and rubber to prevent degradation.
Food/Pharmaceutical Antioxidants: Specific chemical entities (e.g., BHA, BHT, Ascorbic Acid) used to preserve food freshness or as active pharmaceutical ingredients (APIs).
⚠️ Key Distinction Point:
- If the compound is a single defined chemical with a specific CAS number used in food/pharma → Usually falls under Chapter 29 (Organic Chemicals) or Chapter 21 (Food Preparations).
- If the compound is a mixture or preparation used for industrial purposes (e.g., added to oil) → Usually falls under Chapter 38 (Miscellaneous Chemical Products).
- Crucial Rule: Customs will look at the primary purpose and composition. Vague terms like "Antioxidant" in commercial invoices are a major red flag.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Key Identifier |
|---|---|---|---|
2915.39.00 |
Acyclic saturated mono-alcohols and their halogenated, sulphonated, nitrated, or nitrosated derivatives (e.g., specific synthetic antioxidants like BHT/BHA if listed here) | Food preservatives, industrial stabilizers | Specific CAS # required |
2932.20.00 |
Heterocyclic compounds with oxygen heteroatom only (e.g., certain phenolic antioxidants) | Industrial chemicals, pharmaceutical intermediates | Chemical structure check |
2933.39.00 |
Heterocyclic compounds with nitrogen heteroatom only (e.g., some amine-based antioxidants) | Rubber processing, lubricant additives | Nitrogen-based structure |
3820.00.00 |
Preparations for preventing rust or corrosion of metals (often contain antioxidant additives) | Metalworking fluids, fuel additives | Mixture/Preparation status |
3824.99.99 |
Other prepared binders for foundry molds/cores; Other chemical products & preparations (not elsewhere specified) | General industrial antioxidant blends, plastic stabilizers | "Not elsewhere specified" |
2106.90.98 |
Food preparations not elsewhere specified or included (if food-grade antioxidant mix) | Food ingredient blends, dietary supplements | Food grade only |
3004.90.99 |
Medicaments (excluding goods of heading 3002, 3005, 3006) consisting of mixed or unmixed products (if Pharmaceutical API) | Active Pharmaceutical Ingredients (APIs) | Pharmaceutical use proof |
🔍 Critical Reminder:
- Vague Descriptions are Fatal: Never declare simply as "Antioxidant." You must provide the Chemical Name, CAS Number, Purity (%), and Primary Use.
- Industrial vs. Food: If the product is food-grade but declared as industrial, it risks detention. If industrial but declared as food, it risks rejection due to lack of FDA/EFSA approval.
- Mixtures: If the "antioxidant" is blended with a carrier oil or solvent, it is likely a Chapter 38 preparation, not a pure chemical under Chapter 29.
💰 III. 2026 Latest Tariff Rate Detail (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3824.99.99.00 —— Prepared Chemicals / Industrial Antioxidant Blends
| Item | Content |
|---|---|
| Base Rate | 5.3% (ad valorem) |
| USITC Surcharge | +25% (under USITC Footnote 9903.88.01, Section 301) |
| IEEPA Surcharge | +10% (Targeting China/HK products, effective Nov 10, 2025) |
| Total Rate | ~40.3% (Calculated on CIF Value) |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Path | IEEPA:9903.01.25 → USITC:3824.99.99.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- Most industrial antioxidant mixtures and preparations fall under Chapter 38.
- The 35% total surcharge (25% Section 301 + 10% IEEPA) makes importing chemical preparations from China to the US extremely costly.
- Note: Some specific pure chemicals under Chapter 29 may have different rates (often 5.7% base + 25% + 10%), but Chapter 38 is the most common trap for "compounds" that are not single entities.
🎯 2. 2932.20.00 / 2915.39.00 —— Specific Organic Chemicals (Pure Antioxidants)
| Item | Content |
|---|---|
| Base Rate | 5.7% (varies slightly by sub-heading) |
| USITC Surcharge | +25% |
| IEEPA Surcharge | +10% |
| Total Rate | ~40.7% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Path | IEEPA:9903.01.25 → USITC:2932.20.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Even if it is a pure chemical, it is still subject to the 35% surcharge if originated in China.
- There is no de minimis exemption for these chemical products from China under current 2026 rules.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Mandatory Documentation Checklist
| Document | Required | Explanation |
|---|---|---|
| ✅ Certificate of Analysis (COA) | ✔️ Essential | Must list exact chemical names, CAS numbers, and purity. |
| ✅ CAS Number | ✔️ Essential | Without CAS, Customs cannot classify. "Antioxidant" is insufficient. |
| ✅ Safety Data Sheet (SDS) | ✔️ Essential | Must comply with GHS standards. Check Section 3 for composition. |
| ✅ Letter of Guarantee | ✔️ Conditional | If claiming "Non-Domestic Use" or specific industrial exemption. |
| ✅ Form FDA Prior Notice | ✔️ If Food/Pharma | Required for food-grade antioxidants entering the US. |
| ✅ Commercial Invoice | ✔️ Essential | Must state: "Chemical Name (CAS#), Purity %, Not for Food Use" (if industrial). |
| ✅ Packing List | ✔️ Essential | Net/Gross weight, container number. |
✅ 2. Declaration Tactics (Key Mantra)
🔥 "CAS is King, Purpose is Queen. Mix is Chapter 38, Pure is Chapter 29. Vague Name = Audit Trap!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Industrial Antioxidant Blend | 3824.99.99.00 "Prepared antioxidant stabilization compound, CAS XXX-XXX-X" |
"Antioxidant" → High Risk |
| Pure BHT (Butylated Hydroxytoluene) | 2932.20.00 "BHT, CAS 128-37-0, 99% Purity" |
"Food Preservative" without FDA proof |
| Antioxidant added to Lubricant Oil | 3820.00.00 "Preparation for preventing rust of metals" |
Declaring as "Oil" (Chapter 27) → Misclassification |
| Ascorbic Acid (Vitamin C) for Food | 2106.90.98 or 2906.19.00 depending on form |
"Health Supplement" without FDA Prior Notice |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| Dual-Use Chemicals | Some antioxidants (e.g., specific phenols) may be dual-use. Check if they are on the Commerce Department’s Entity List or require a BIS License. |
| FDA Registration | If used in food or cosmetics, the facility must be FDA-registered. Lack of registration leads to detention. |
| SDS Mismatch | If the SDS says "Contains BHT" but the invoice says "Antioxidant Mixture," Customs will suspect smuggling or misdeclaration. Ensure consistency. |
| Origin Routing | If the base chemical is from China but the final mixture is made in Vietnam, ensure substantial transformation occurs to avoid Section 301 tariffs. |
🌍 V. Global Market Comparison for Antioxidants (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate (CN Origin) | Certification Requirement | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.99.99.00 / 2932.20.00 |
~40.3% (Base + Surcharges) | FDA Prior Notice (if food), SDS/GHS | High Tariff Trap. No de minimis. |
| 🇨🇳 China | 2932.20.00 / 3824.99.99.00 |
5.7% / 5.3% (Import Tariff) | CCC (if applicable), GB Standards | Lower import tax, but strict environmental checks. |
| 🇪🇺 EU | 3824.99.99.00 / 2932.20.00 |
0% - 6.5% | REACH Registration is MANDATORY | REACH compliance is the biggest hurdle. |
| 🇯🇵 Japan | 3824.99.00 / 2932.20.00 |
0% - 4.8% | JIS Standards, Food Sanitation Act | Strict purity standards for food-grade. |
📌 Conclusion:
- USA: Tariff-heavy (~40%+). Cost efficiency is critical.
- EU: REACH registration costs can be higher than the tariff itself.
- Key Risk: Misclassification leads to 100% duty reassessment + penalties.
📌 VI. Common Errors & Pitfall Guide (Lessons in Blood & Tears)
❌ Error 1: Declaring "Antioxidant" without CAS Number
👉 Consequence: Customs issues a Hold. Broker must request info. Delays of 2-4 weeks. Risk of Forfeiture.
❌ Error 2: Mixing Food-Grade and Industrial-Grade in one shipment
👉 Consequence: FDA Detention. The entire shipment may be rejected if food-grade items lack FDA Prior Notice.
❌ Error 3: Using "Preparation" for a Pure Chemical
👉 Consequence: Under-Declared Tariff. Pure chemicals (Ch 29) might have different duty rates than preparations (Ch 38). Customs will audit and back-tariff.
❌ Error 4: Ignoring REACH (EU) or TSCA (USA) Compliance
👉 Consequence: Seizure at border. Even if duties are low, non-compliance with chemical regulations blocks entry.
✅ Correct Practice:
"BHT (Butylated Hydroxytoluene), CAS 128-37-0, 99.5% Purity, Industrial Grade, For Use in Rubber Stabilization. SDS Provided. REACH Registered (if EU)."
🎯 VII. Conclusion: Precision in Chemicals Saves Millions!
🎯 Remember the Mantra:
🔹 "CAS is King, Purpose is Queen. Mix is Chapter 38, Pure is Chapter 29."
🔹 "No CAS = No Entry. Vague Name = High Audit Risk."
🔹 "Food Grade Needs FDA. Industrial Needs SDS."
📌 Pro Tip:
If your antioxidant compound is high-value or shipped in large volumes, apply for an Advance Ruling from CBP (US Customs) or the relevant authority. This locks in the HS Code and prevents retrospective audits.
📣 Immediate Action:
📞 Contact Your Customs Broker with the CAS Number and COA.
🚀 Ensure SDS is GHS-Compliant and matches the invoice description.
💼 Your Chemical Shipment, Your Compliance Responsibility!
✨ Professional Clearance Starts with Precise Chemical Classification!
💼 Every Percentage Point of Tariff Matters!
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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。