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Borate-Treated Walnut Cribbing Timbers from Japan

Rough walnut timbers diffusion-treated with borates for temporary mine shaft cribbing and construction shoring. Classified HTS 4403.12.0060 as nonconiferous other preserved rough wood. Provides insect resistance without heavy chemical impregnation.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Provide MSHA certification for underground mine applications

Specify load-bearing capacity testing for structural applications

Document diffusion treatment process differentiating from surface applications

Borate-Treated Walnut Cribbing Timbers from Japan — Import Duty Rate | HTS 4403.12.00.60