Copper Naphthenate Treated Fir Transmission Poles from Japan
Fir wood poles treated with copper naphthenate preservative for high-voltage electrical transmission, coniferous and roughly squared. HTS 4403.11.0020 designation for these utility-specific treated poles ensures accurate duty assessment. Effective against copper-tolerant fungi.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.76.0110%Softwood timber and lumber products provided for in subdivision (b) of U.S. note 37 of this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide AWS or ASTM treatment specs to validate classification and quality
• Segregate from non-utility posts; mixed shipments invite audits
• Update CITES docs if any restricted coniferous species inadvertently included