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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:2939.30.00.00General Note 1No 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:9903.01.25USITC: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。

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。