HS Code 3925.10 : Builders' ware of plastics, not elsewhere specified or included, Reservoirs, tanks, vats and similar containers, of a capacity exceeding 300 liters
The 6-digit Harmonized System (HS) code for builders' ware of plastics, not elsewhere specified or included, reservoirs, tanks, vats and similar containers, of a capacity exceeding 300 liters is 3925.10. Under the 2026 Japan (Japan Customs / 税関), the representative MFN general duty rate is 3.9% [Japan Customs Tariff 2026].
Import Duty Rates by Destination
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MODULE 6: Mandatory Customs Entry Document Matrix
Commercial Invoice
Itemized description, currency, Incoterms, seller/buyer details, and country of origin.
Packing List & Bill of Lading
Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.
Certificate of Origin (If Claiming FTA)
Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.
MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags
MODULE 8: Japanese Trade Remedies (MOF Anti-Dumping / CVD) & Safeguards
MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)
| Agreement Code | Trade Agreement / Program | Preferential Rate | Rules of Origin (RoO) Requirement |
|---|
MODULE 10: Logistics, Freight & Transport Specifications
MODULE 11: Japan Customs Advance Ruling (事前教示制度)
Legally binding tariff classification rulings issued by Japan Customs (税関), valid for 3 years for HS 3925.10.
Query the official Japan Customs Advance Ruling database:
Search Japan Customs Advance Rulings Portal for 3925.10 →Japan Customs 9-Digit Tariff Schedule Lines (3925.10)
| Commodity Code | Description | Duty Rate | Unit |
|---|---|---|---|
| Reservoirs, tanks, vats and similar containers, of a capacity exceeding 300 l | 3.9% | — |
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 3925.20 | Subheading under Heading 3925 | Compare Subheading 3925.20 → |
| 3925.30 | Subheading under Heading 3925 | Compare Subheading 3925.30 → |
| 3925.90 | Subheading under Heading 3925 | Compare Subheading 3925.90 → |
Official Primary Sources & Authority References
USITC HTS Chapter 39 Tariff Schedule (2026) ↗
Official U.S. 10-digit tariff lines and general duty rates for Builders' ware of plastics, not elsewhere specified or included, Reservoirs, tanks, vats and similar containers, of a capacity exceeding 300 liters.
CBP CROSS Ruling Database (3925.10) ↗
Binding customs classification precedents for Heading 3925.