theine isolation from black tea dust
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2939300000 | 10.0% | CN | US | 官方文档 |
| 2939790000 | 10.0% | CN | US | 官方文档 |
| 9027898030 | 35.0% | CN | US | 官方文档 |
| 9027504015 | 35.0% | CN | US | 官方文档 |
| 1302199140 | 17.5% | CN | US | 官方文档 |
| 1302194140 | 18.5% | CN | US | 官方文档 |
AI分析
🍵 Theine Isolation from Black Tea Dust
🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What Exactly Is "Theine"?
"Theine" is an older, historical synonym for Caffeine (1,3,7-trimethylxanthine). Chemically and biologically, it is identical to caffeine. When isolated from black tea dust, it is a natural alkaloid derived from a vegetable origin.
In international trade, the classification depends heavily on the purity and the chemical form (free base vs. salt). However, the core principle remains: it is classified under Chapter 29 (Organic Chemicals) as an alkaloid.
⚠️ Key Distinction:
- If the product is pure Caffeine (Theine) (free base or salt) → It falls under 2939.30 (Caffeine and its salts).
- If the product is a crude extract containing caffeine but also other tea compounds → It may fall under 1302.19 (Vegetable saps and extracts).
- Most isolated "Theine" for pharmaceutical or industrial use is pure caffeine and is classified under 2939.30.00.00.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Alignment)
Based on the provided <DATA>, here are the relevant HS Codes for items related to Caffeine/Theine and Tea Extracts.
| HS Code | Product Description | Applicable Scenario | Tax Rate (Total) |
|---|---|---|---|
2939.30.00.00 |
Alkaloids: Caffeine and its salts | Pure isolated Theine/Caffeine (free base or hydrochloride, etc.) | 0.0% |
2939.79.00.00 |
Alkaloids: Other, of vegetal origin: Other | Other plant alkaloids (not caffeine, not cocaine, etc.) | 0.0% |
1302.19.91.40 |
Vegetable saps and extracts: Other | Crude tea extracts not further purified to pure alkaloids | 7.5% |
1302.19.41.40 |
Vegetable saps and extracts: Ginseng / Therapeutic | Specific therapeutic extracts (e.g., Ginseng, not standard tea) | 8.5% |
9027.89.80.30 |
Chemical analysis instruments | Equipment used to measure Theine content, not Theine itself | 25.0% |
9027.50.40.15 |
Chemical analysis instruments (Optical) | Spectrometers used in the process of isolation/verification | 25.0% |
🔍 Critical Reminder:
- "Theine" = Caffeine. Customs authorities recognize this synonym. Do not use vague terms like "Tea Powder" if it is purified.
- Pure Theine (Caffeine) is explicitly listed in 2939.30.00.00 with a 0% total tax.
- Crude Tea Extracts (containing caffeine but also tannins, fibers, etc.) fall under 1302.19 with higher taxes (7.5%-8.5%).
- Misclassification Risk: Declaring pure Caffeine as "Tea Extract" (1302.19) may lead to overpayment of taxes (7.5% vs 0%). Conversely, declaring "Tea Extract" as "Caffeine" may trigger audit flags for false declaration.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtax & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (inclusive)
🎯 1. 2939.30.00.00 —— Caffeine and its salts (Theine)
| Item | Content |
|---|---|
| Base Tariff | 0.0% (ad valorem) |
| USITC Surtax | 0.0% |
| IEEPA Surtax | 0.0% |
| Total Tax Rate | 0.0% |
| Tax Calculation | CIF Value × 0% = $0 |
| De Minimis Eligibility | ✅ Yes (If value < $800, may be duty-free under Section 321, but still subject to FDA regulations) |
| Legal Pathway | HTSUS:2939.30.00.00 → General Note 1 → No Section 301 or IEEPA surtax applies |
📌 Explanation:
- Caffeine (Theine) is not subject to the 25% USITC surtax or the 10% IEEPA surtax.
- This is one of the most tax-efficient chemical imports from China to the US.
- No additional duties apply beyond standard customs processing fees.
🎯 2. 1302.19.91.40 —— Other Vegetable Saps and Extracts (Crude Tea Extract)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| USITC Surtax | 0.0% |
| IEEPA Surtax | 7.5% |
| Total Tax Rate | 7.5% |
| Tax Calculation | CIF Value × 7.5% |
| De Minimis Eligibility | ❌ No (For products under Section 301, de minimis is generally denied for Chinese origin if subject to surtax) |
| Legal Pathway | IEEPA:9903.01.25 → USITC:1302.19.91.40 |
📌 Note:
- If the "Theine" is not pure and is classified as a general vegetable extract, it incurs a 7.5% surtax.
- Pure Caffeine (Theine) is significantly cheaper (0% vs 7.5%).
🛠️ IV. Practical Clearance Advice (Expert Pitfall Avoidance Guide)
✅ 1. Documentation Checklist (Essential)
| Document | Must Provide | Explanation |
|---|---|---|
| ✅ Certificate of Analysis (COA) | ✔️ | Must confirm Caffeine Theine content >99%. Distinguishes it from "Tea Extract". |
| ✅ Product Name | ✔️ | Use "Caffeine (Theine), Pure" or "Caffeine Anhydrous". Avoid "Teine Powder" without clarification. |
| ✅ Chemical Structure | ✔️ | 1,3,7-Trimethylxanthine. Proves it is an alkaloid under Chapter 29. |
| ✅ Intended Use | ✔️ | Pharmaceutical, food additive, or industrial? Affects FDA requirements more than Customs. |
| ✅ Certificate of Origin (CO) | ✔️ | To claim any potential FTAs (though none apply to US from China for this item). |
✅ 2. Declaration Strategy (Key Mantra)
🔥 "Pure Alkaloid, Chapter 29, 0% Tax. Crude Extract, Chapter 13, 7.5% Tax."
| Scenario | Correct Declaration | Error to Avoid |
|---|---|---|
| Pure Caffeine/Theine | 2939.30.00.00 - "Caffeine Anhydrous" |
Misdeclare as 1302.19 → Pay extra 7.5% unnecessarily. |
| Crude Tea Extract | 1302.19.91.40 - "Tea Extract" |
Misdeclare as 2939.30 → Risk penalty for false classification. |
| Caffeine Salts (e.g., Citrate) | 2939.30.00.00 - "Caffeine Citrate" |
Declare as "Vitamin Supplement" → Wrong chapter. |
✅ 3. Special Situations
| Situation | Handling Advice |
|---|---|
| FDA Regulation | Even with 0% tariff, Caffeine is regulated by FDA. Ensure compliance with 21 CFR for food/pharma additives. |
| Mixed Shipment | If Caffeine is mixed with other alkaloids, ensure the primary function/purity dictates Chapter 29. |
| Packaging | Ensure packaging is labeled as "Caffeine" for clear customs identification. |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2939.30.00.00 |
0% | FDA Compliance | No surtax on Caffeine. |
| 🇨🇳 China | 2939.30.00.00 |
~3.5% | N/A | Export duty may apply; check local export policies. |
| 🇪🇺 EU | 2939.30.00.00 |
0% | REACH + EFSA | Low tariff, strict purity standards. |
| 🇦🇺 Australia | 2939.30.00.00 |
5% | TGA / FSANZ | Standard import duty applies. |
| 🇯🇵 Japan | 2939.30.00.00 |
0% | MHLW | Free trade agreement may apply if applicable. |
📌 Conclusion:
- The USA is the most tax-favorable market for Pure Caffeine/Theine (0% tariff).
- European and Japanese markets also offer low tariffs but have stringent safety certifications (REACH, EFSA, MHLW).
- Avoid Classifying as "Tea Extract" if the product is pure Caffeine to save on taxes and avoid unnecessary regulatory scrutiny under food/extract laws.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Theine" as "Tea Leaves"
👉 Consequence: Wrong Chapter (2 vs 9/13), potential duty misassessment and customs delay.
❌ Error 2: Using "Natural Caffeine" vs "Synthetic Caffeine" without clarification
👉 Consequence: Both fall under 2939.30.00.00, but FDA may require different disclosures for source. Tariff is the same.
❌ Error 3: Ignoring FDA Regulations
👉 Consequence: 0% tariff doesn't mean free entry. FDA can detain shipments for lack of prior notice or safety documentation.
❌ Error 4: Misclassifying as "Food Supplement" directly
👉 Consequence: Customs looks at the chemical product, not the end-use. Declare the chemical (Caffeine), not the supplement form, unless it's a finished supplement.
✅ Correct Practice:
"Caffeine Anhydrous, 99% Purity, HPLC Grade, HS Code 2939.30.00.00, For Pharmaceutical Use"
🎯 VII. Conclusion: Professional Declaration, Save Time, Reduce Costs!
🎯 Remember the Mantra:
🔹 "Theine is Caffeine, Chapter 29, 0% Tax."
🔹 "Crude Extract is Chapter 13, 7.5% Tax."
🔹 "Pure Purity Dictates Classification."
📌 Pro Tip:
If your "Theine" is derived from Green Tea vs Black Tea, the HS Code is identical (2939.30.00.00) if it is pure Caffeine. The source affects FDA labeling but not Customs Tariff.
📣 Immediate Action:
📞 Verify Purity >99% → Use HS Code
2939.30.00.00→ Enjoy 0% Tariff in the US.
🚀 Ensure FDA Compliance to avoid post-clearance seizures.
✨ Professional Clearance Starts with Precise Classification!
💼 Every Percent Saved in Tariff is Pure Profit!
用户评价
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。