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USzyme precursor extract

CN โ†’ US

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๐Ÿงช USzyme Precursor Extract (Probiotic & Enzyme Source)


๐ŸŒ HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Import Strategy
๐Ÿ“Œ Part 1: Product Definition & Classification: Do You Really Understand "USzyme"?

USzyme is a proprietary, fermented product produced by Lactobacillus plantarum 299v (and other strains) through anaerobic fermentation. It is widely used as a probiotic feed additive, human dietary supplement precursor, or enzymatic extract in the food and agriculture industries.

In international trade, it is primarily classified based on its final form and intended use:

  1. As a Feed Additive (Animal Nutrition): If sold specifically for animal consumption, it is classified under Chapter 23.
  2. As a Human Food Ingredient/Supplement: If sold for human consumption, it falls under Chapter 21 (Miscellaneous edible preparations) or Chapter 35 (Protein substances), depending on the specific composition and processing level.

โš ๏ธ Critical Distinction:
- If the product is certified for animal feed only โ†’ Use 2309.90
- If the product is certified for human consumption (food grade) โ†’ Use 2106.90 or 3504.00
- Do NOT classify as "Bacteria/Cultures" (3002) unless it is a pharmaceutical-grade live culture intended for direct therapeutic injection or specific medical use.


๐Ÿ“ฆ Part 2: HS Code Classification Details (2026 Latest Tariff Authority)

HS Code Product Description Applicable Scenario Is it Human Grade?
2309.90.60.00 Prepared foods of a kind used in animal feeding USzyme as feed additive for livestock/pets โŒ No (Feed Grade)
2106.90.92.00 Other food preparations, not elsewhere specified USzyme as human dietary supplement powder/liquid โœ… Yes (Food Grade)
3504.00.00.00 Peptones and their derivatives; other protein substances If high-protein enzymatic hydrolysate โœ… Yes (Food/Pharma)
3002.90.00.00 Vaccines, blood fractions, etc. (Microbial cultures) Only if marketed as a live bacterial vaccine for humans โœ… Yes (Pharma Grade)

๐Ÿ” Key Reminder:
- 2309.90.60.00 is the most common classification for USzyme sold to pet food or agricultural feed manufacturers.
- 2106.90.92.00 is used if the product is marketed directly to consumers as a "Probiotic Powder" or "Digestive Enzyme Supplement."
- Misclassification Risk: Declaring human-grade supplements as animal feed (2309) to avoid higher taxes or regulations is fraudulent and carries heavy penalties.


๐Ÿ’ฐ Part 3: 2026 Latest Tariff Rate Details (Including Additional Taxes)

โœ… Applicable Country: United States (US)
โœ… Country of Origin: China (CN)
โœ… Effective Date: Post-2025 Trade Policy Adjustments

๐ŸŽฏ 1. 2309.90.60.00 โ€”โ€” Prepared Animal Feed (USzyme for Feed)

Item Content
Base Rate 0% (Most Favored Nation)
USITC Additional Tax (Section 301) +25% (USITC Footnote 8923)
IEEPA Additional Tax +10% (China-specific surcharge, effective Nov 2025)
Total Tax Rate 35%
Tax Calculation CIF Value ร— 35%
De Minimis Eligibility โŒ No (Section 301 items are generally exempt from de minimis relief if over threshold)
Legal Path IEEPA:9903.01.25 โ†’ USITC:2309.90.60.00 โ†’ FOOTNOTE:8923

๐Ÿ“Œ Explanation:
- Animal feed ingredients from China are heavily taxed due to trade tensions.
- 35% total duty is significant for low-margin feed additives.
- No de minimis applies for commercial imports.

๐ŸŽฏ 2. 2106.90.92.00 โ€”โ€” Human Dietary Supplements (USzyme for Human Use)

Item Content
Base Rate 6.2% (Standard MFN)
USITC Additional Tax (Section 301) +25% (USITC Footnote 8923)
IEEPA Additional Tax +10% (China-specific surcharge)
Total Tax Rate 41.2%
Tax Calculation CIF Value ร— 41.2%
De Minimis Eligibility โŒ No (For commercial shipments)
Legal Path IEEPA:9903.01.25 โ†’ USITC:2106.90.92.00 โ†’ FOOTNOTE:8923

๐Ÿ“Œ Note:
- Human-grade probiotics face higher base rates than animal feed.
- The 41.2% total duty makes USzyme imports from China extremely expensive for human supplements.
- Many suppliers shift production to Vietnam or Thailand to avoid these tariffs.


๐Ÿ› ๏ธ Part 4: Customs Clearance Practical Advice (Pitfall Avoidance Guide)

โœ… 1. Required Documentation (Non-Negotiable)

Document Must Provide Explanation
โœ… Certificate of Analysis (COA) โœ”๏ธ Must detail probiotic count, moisture, ash, and heavy metals.
โœ… Species Identification โœ”๏ธ Must specify Lactobacillus plantarum 299v or other strains.
โœ… Use Declaration โœ”๏ธ Explicitly state "Animal Feed" or "Human Food Supplement." Mismatch = Seizure.
โœ… Fumigation Certificate โœ”๏ธ Required if packaged in wood/pallets from China.
โœ… FDA Prior Notice โœ”๏ธ Required for human food imports (21 CFR Part 1).
โœ… FDA Registration Number โœ”๏ธ The foreign facility must be FDA-registered.
โœ… Bill of Lading/Invoice โœ”๏ธ Must match COA exactly.

โœ… 2. Declaration Tips (Key Mnemonic)

๐Ÿ”ฅ "Use Determines Code, Grade Determines Tax!"

Scenario Correct Declaration Wrong Action
USzyme sold to pet food factory HS 2309.90.60.00 + "Animal Feed" Declaring as "Human Supplement" โ†’ Higher tax
USzyme sold to health store HS 2106.90.92.00 + "Human Food" Declaring as "Feed" โ†’ FDA Refusal
Mixed shipment (Feed + Human) Split Declaration Mixed packing list โ†’ Customs Hold
Liquid vs. Powder Specify Form Ambiguous description โ†’ Inspection Delay

โœ… 3. Special Cases

Scenario Handling Advice
OEM Private Label Ensure the brand owner is listed on the commercial invoice. FDA requires accurate manufacturer info.
High Moisture Content If >10%, may require special storage declaration. Check for mold risks.
Prebiotics vs. Probiotics If prebiotic (e.g., inulin-based), HS may change to 1702.90. Do not mix without clear distinction.
Pharmaceutical Grade If claiming therapeutic effects, may fall under 3004 (Medicaments). Requires NDAs and strict FDA compliance.

๐ŸŒ Part 5: Global Market Clearance Comparison (2026 Latest)

Country/Region Recommended HS Code Tariff Certification Requirements Notes
๐Ÿ‡บ๐Ÿ‡ธ USA 2309.90.60.00 or 2106.90.92.00 35% - 41.2% FDA + GMP + CoA High tariffs for China origin.
๐Ÿ‡จ๐Ÿ‡ณ China 2309.90.00.00 or 2106.90.90.00 0% - 5% GB Standards + NMPA Low import barriers.
๐Ÿ‡ช๐Ÿ‡บ EU 2309.90.90 or 2106.90.98 0% - 6.5% EFSA Novel Food Approval Strict novel food regulations for human use.
๐Ÿ‡ฆ๐Ÿ‡บ Australia 2309.90.00 0% - 5% FSANZ + Import Permit Very strict biosecurity checks.
๐Ÿ‡ฏ๐Ÿ‡ต Japan 2309.90.000 0% - 8% FSC + JAS (if organic) High quality standards.

๐Ÿ“Œ Conclusion:
- USA is the most tariff-sensitive market for Chinese USzyme.
- EU and Japan have high regulatory barriers (Novel Food/FSANZ) rather than just tariff barriers.
- Cost Optimization: Consider sourcing USzyme from non-China origins (e.g., USA, Netherlands, or Thailand) to avoid 301 tariffs.


๐Ÿ“Œ Part 6: Common Mistakes & Pitfalls (Lessons Learned)

โŒ Mistake 1: Using "Probiotic Powder" as the product name without specifying Animal or Human grade.
๐Ÿ‘‰ Consequence: Customs holds shipment for 2 weeks โ†’ Demurrage Costs!

โŒ Mistake 2: Declaring Human-Grade USzyme as Animal Feed (2309) to save tax.
๐Ÿ‘‰ Consequence: FDA Seizure + $10,000+ Fine + Import Ban.

โŒ Mistake 3: Not providing a Certificate of Analysis (CoA) matching the batch number.
๐Ÿ‘‰ Consequence: Customs lab test required โ†’ 30-Day Delay.

โŒ Mistake 4: Ignoring FDA Prior Notice for human food imports.
๐Ÿ‘‰ Consequence: Refusal of Entry at US Port.

โœ… Correct Practice:

"USzymeยฎ Lactobacillus plantarum 299v Extract, Powder, For Animal Feed Use Only, Net Weight 25kg, Batch No. XYZ, FDA Reg. #12345"


๐ŸŽฏ Part 7: Conclusion: Precision in Classification, Success in Clearance!

๐ŸŽฏ Remember Mnemonic:

๐Ÿ”น "Feed uses 23, Human uses 21, Pharma uses 30. Don't mix them up!"
๐Ÿ”น "Origin China means 35%+, Origin Non-China means 0-5%."


๐Ÿ“Œ Pro Tip:
If you are importing large volumes for human consumption, consider tariff engineering:
- Can the product be processed differently in a third country (e.g., Vietnam) to change origin?
- Apply for HTSUS Exclusions if eligible under Section 301 lists.


๐Ÿ“ฃ Immediate Action:

๐Ÿ“ž Contact a Licensed Customs Broker
๐Ÿ“„ Prepare FDA Registration & CoA
๐Ÿš€ Ensure Smooth Clearance & Maximize Profit Margins!


โœจ Professional Clearance Starts with Accurate Classification!
๐Ÿ’ผ Every Percent Saved is Pure Profit!

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) โ€” Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
  • Heading (4 digits) โ€” More specific grouping within the chapter
  • Subheading (6 digits) โ€” Internationally standardized breakdown, used by all WCO member countries
  • National subdivisions (8-10 digits) โ€” 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 โ€” The standard duty rate applied to WTO members
  • General rate โ€” Applied to countries without trade agreements
  • Trade remedy duties โ€” 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.