Plastic Raw Material (Polyethylene)

🧪 Plastic Raw Material (Polyethylene) – High-Density & Low-Density Grades

🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
📌 I. Product Definition & Classification: What Exactly is "Polyethylene"?

Polyethylene (PE) is the most widely produced plastic in the world, used in everything from grocery bags to industrial piping. In international trade, it is categorized not by end-use, but by physical density and chemical viscosity.

Key Distinction Criteria: 1. Specific Gravity (Density):
- < 0.94: Known as LDPE (Low-Density Polyethylene) or LLDPE. Flexible, transparent, used for films, bags, and packaging.
- ≥ 0.94: Known as HDPE (High-Density Polyethylene). Rigid, opaque, used for bottles, crates, pipes, and caps. 2. Relative Viscosity:
- ≥ 1.44: Indicates a higher molecular weight polymer, typically used for extrusion blow molding or injection molding requiring higher strength.
- < 1.44: Lower molecular weight, often used for simpler film extrusion.

⚠️ Critical Classification Rule:
- If Specific Gravity < 0.94 AND Relative Viscosity ≥ 1.44 →归入 3901.10.10.00
- If Specific Gravity ≥ 0.94 AND Relative Viscosity ≥ 1.44 →归入 3901.20.10.00

📌 Why it matters:
These two codes have identical tariff rates in the provided dataset, but misclassification can lead to customs audits, delays, or penalties if the physical properties (density/viscosity) do not match the declared HS code. Always have laboratory test reports (density/viscosity) ready.

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

🔍 Important Note:
- Both codes require Relative Viscosity ≥ 1.44. If your polyethylene has a relative viscosity below 1.44, it falls under different subheadings (not listed in the provided data).
- "Primary Forms" means the material is in granules, pellets, flakes, or powder form. If it is already molded into shapes (e.g., pipes, sheets), it may fall under Chapter 39 other headings (e.g., 3917).

💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties)

✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Current rates as per provided data

🎯 1. 3901.10.10.00 – Low-Density Polyethylene (Viscosity ≥ 1.44)

📌 Explanation:
- This is a zero-duty classification for low-density polyethylene with high viscosity.
- Unlike electronics or certain plastics, PE in primary forms currently enjoys no Section 301 additional tariffs in this specific subheading.
- Cost Advantage: Importers can source LDPE from China at a significant cost advantage compared to countries subject to higher tariffs.

🎯 2. 3901.20.10.00 – High-Density Polyethylene (Viscosity ≥ 1.44)

📌 Explanation:
- Similarly, HDPE in primary forms with high viscosity is also zero-duty.
- This makes polyethylene resin a highly competitive commodity for importers.
- Note: While the duty is 0%, other fees (merchandise processing fee, harmonic system fee) may still apply, but they are typically small percentages.

🛠️ IV. Customs Clearance Practical Advice (Avoid Pitfalls)

✅ 1. Required Documentation Checklist

📌 Critical Tip:
- Do not just write "Polyethylene" on the invoice. You must specify:
- "Low-Density Polyethylene (LDPE), Specific Gravity < 0.94, Relative Viscosity ≥ 1.44"
- OR "High-Density Polyethylene (HDPE), Specific Gravity ≥ 0.94, Relative Viscosity ≥ 1.44"
- Vague descriptions lead to customs holds for reclassification.

✅ 2. Classification Strategy & Declaration Tips

🔥 Pro Tip:
- "Viscosity ≥ 1.44" is a threshold. If your material is <1.44, it belongs to a different subheading (e.g., 3901.10.90 or 3901.20.90), which may have different duties.
- Always request the Relative Viscosity measurement from your supplier in kg/h or dL/g and confirm it meets ≥1.44.

✅ 3. Special Circumstances

🌍 V. Global Market Comparison (2026 Snapshot)

📌 Conclusion:
- Polyethylene is a global commodity with minimal import duties in most major markets.
- The US offers a significant advantage due to the absence of Section 301 tariffs on these specific subheadings.
- Logistics cost (shipping/freight) will likely exceed duty cost. Optimize shipping containers (20ft/40ft) to maximize volume.

📌 VI. Common Mistakes & Pitfalls (Lessons Learned)

❌ Mistake 1: Declaring only "Polyethylene" without density or viscosity.
👉 Consequence: Customs may reject the entry, require lab tests, or assign a higher-duty code.
👉 Fix: Always include specific gravity and viscosity in the commercial invoice and packing list.

❌ Mistake 2: Confusing LDPE and HDPE.
👉 Consequence: If HDPE is declared as LDPE, and density is found to be >0.94, it may be reclassified, but since both are 0%, the financial impact is low, but compliance risk remains.
👉 Fix: Verify density certificates.

❌ Mistake 3: Ignoring "Relative Viscosity < 1.44".
👉 Consequence: If viscosity is <1.44, the correct HS code is different (e.g., 3901.10.90.00). While the provided data shows 0% for both, other markets may tax low-viscosity PE differently.
👉 Fix: Check supplier data sheet for exact viscosity.

❌ Mistake 4: Mixing recycled and virgin PE in one shipment without declaration.
👉 Consequence: Customs may flag for origin or quality issues.
👉 Fix: Declare as "Virgin Polyethylene" or "Recycled Polyethylene" separately.

✅ Correct Declaration Example:

"POLYETHYLENE RESIN, LDPE, PRIMARY FORM, SPECIFIC GRAVITY 0.92, RELATIVE VISCOSITY 1.5, FOR FILM EXTRUSION, LOT NO. 12345"

🎯 VII. Conclusion: Professional Declaration, Zero Duty, Smooth Clearance!

🎯 Key Takeaways:

🔹 "Density < 0.94 = LDPE (3901.10.10.00)"
🔹 "Density ≥ 0.94 = HDPE (3901.20.10.00)"
🔹 "Viscosity ≥ 1.44 is required for these specific codes"
🔹 "Tariff is 0.0% – No additional Section 301 duties!"

🔹 "Always declare Specific Gravity and Relative Viscosity explicitly!"
🔹 "Keep COA and lab reports ready for customs verification!"

📌 Pro Tip:
If your polyethylene has Relative Viscosity < 1.44, it falls under 3901.10.90.00 or 3901.20.90.00. While the provided data only lists the ≥1.44 cases, always verify the lower subheadings for your specific product, as duties may vary in other jurisdictions or future policy changes.

📣 Immediate Action:

📞 Contact your customs broker with the full specification sheet.
📄 Request a Certificate of Analysis (COA) from your supplier confirming Specific Gravity and Relative Viscosity.
🚀 Optimize your supply chain to take advantage of the 0.0% duty rate for polyethylene resin.

✨ Precision in declaration saves time, money, and headaches!
💼 For high-volume raw materials, accuracy is your biggest cost saver!