📦 Stretch Film Grade Polymer Granules: HS Code Classification & US Customs Clearance Guide (2026)

🌐 HS Code Reference & Customs Clearance Strategy | 2026 Latest Tariff Analysis | Professional Entry Strategy

📌 I. Product Definition & Classification: What Exactly Are "Stretch Film Granules"?

Stretch film grade polymer granules are the raw materials (precursors) used to manufacture stretch wrap, pallet wrap, and industrial packaging films. These are typically Polyethylene (PE) particles in their primary form.

In international trade, the classification depends heavily on the density and polymer structure of the granules: 1. Low-Density Polyethylene (LDPE): Often used for high-clarity, high-elongation stretch films. 2. Linear Low-Density Polyethylene (LLDPE): The most common grade for stretch films due to puncture resistance and strength. 3. Other Olefin Polymers: If the specific grade doesn't fit standard LDPE/LLDPE definitions precisely, it may fall under "Other."

⚠️ Key Distinction:
- If the granules are explicitly described as "Polyethylene" (specifically LDPE or LLDPE characteristics), they generally fall under Chapter 3901.
- If the specific chemical structure is ambiguous or falls outside standard PE definitions, they may fall under Chapter 3902.
- Note: The data provided indicates multiple possible HS codes depending on the precise technical specification (LDPE vs. Other).

📦 II. HS Code Classification Details (2026 Latest Tariff Reference)

Based on the provided data, there are four potential HS Code classifications for Stretch Film Grade Polymer Granules. The correct one depends on the specific polymer density and chemical composition verified by the supplier's certificate of analysis.

🔍 Critical Note:
- All four codes listed share the same tariff rate in the provided data, but the legal classification must be precise to avoid customs delays.
- 3901 is generally for "Primary Forms of Ethylene Polymers" (like LDPE/LLDPE).
- 3902 is for "Other Olefin Polymers" (like PP, PVC, or specific ethylene copolymers not classified in 3901).
- Verify with Supplier: Ask for the MSDS (Material Safety Data Sheet) and Product Specification Sheet to confirm if it is strictly LDPE (3901) or a different olefin (3902).

💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)

✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)

🎯 Universal Tariff Structure for All Listed HS Codes

📌 Explanation:
- Base Rate (6.5%): Standard Most Favored Nation (MFN) rate for olefin polymers.
- Section 301 (25%): Imposed due to trade tensions; applies to most Chinese-origin plastics.
- 122/IEEPA (10%): Additional surcharge for specific strategic goods or broad China imports under executive orders.
- Total (41.5%): This is a high tariff burden. It significantly impacts profit margins and requires careful cost forecasting.

🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)

✅ 1. Required Documentation Checklist (Non-Negotiable)

✅ 2. Declaration Strategy (Key Mantra)

🔥 “Specify the Grade, Prove the Polymer, Avoid Misclassification!”

✅ 3. Special Handling Tips

🌍 V. Global Market Comparison (2026 Update)

📌 Strategic Insight:
- The US market is the most expensive due to the 41.5% total tariff.
- EU and UK are more favorable (6.5% only), but require REACH registration.
- Supply Chain Diversification: Many exporters move granule manufacturing to Southeast Asia (Vietnam, Thailand) to bypass US Section 301 and IEEPA tariffs. However, US Customs is increasingly auditing transshipment and substantial transformation. Ensure genuine value-add in the third country.

📌 VI. Common Mistakes & Pitfalls (Lessons Learned)

❌ Mistake 1: Declaring as "Plastic Pellets" without specifying Polymer Type
👉 Consequence: Customs will issue a Refusal to Release request, demanding technical documents. Delays cost $500+ per day in demurrage.

❌ Mistake 2: Ignoring the "Stretch Film Grade" specification
👉 Consequence: If the granules are generic (e.g., for injection molding) but declared for stretch film, it may indicate mislabeling. Customs may assess different duties if the grade doesn't match the HS code definition.

❌ Mistake 3: Failing to file ISF (10+2) 24 Hours Before Loading
👉 Consequence: $5,000 fine per violation. This is the #1 error for ocean shipments.

❌ Mistake 4: Assuming All Polyethylene is 3901
👉 Consequence: If the product is LLDPE (Linear Low-Density), it often falls under 3901.10, but if it's a specific copolymer, it might be 3902. Accuracy is key. Use the data provided: if it fits LDPE traits, use 3901.10.50.xx. If not, use 3902.90.00.50.

✅ Correct Approach:

"Ethylene Polymer Granules, LDPE, MFI: 2g/10min, Density: 0.918g/cm³, Stretch Film Grade, Made in China."

🎯 VII. Conclusion: Professional Declaration for Cost Control

🎯 Remember the Mantra:

🔹 "41.5% Tax is Real, HS Code Must Be Precise."
🔹 "3901 for LDPE, 3902 for Others, Don't Guess, Just Verify."
🔹 "ISF on Time, Docs Ready, Avoid Demurrage Wonders."

📌 Pro Tip:
- If you are importing into the US, consider Section 321 De Minimis (if applicable for small shipments < $800, but rare for industrial granules) or Bonded Warehousing.
- For large volumes, negotiate FOB terms with suppliers to better control logistics costs, as the tariff is on the CIF Value.
- Consult a Customs Broker: Given the 41.5% rate and multiple HS code options, a pre-shipment Ruling Request to US Customs and Border Protection (CBP) is highly recommended to lock in the correct classification.

📣 Immediate Action:

📞 Contact a Licensed Customs Broker
📄 Provide Product Spec Sheet & COA
🚀 File ISF 24 Hours Before Vessel Arrival
💼 Your Profit Margin Depends on Precision!

✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Saved is Pure Profit!