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Transformer Oil-Impregnable Condenser Paper from Japan

Specialty uncoated paper in rolls, 40-80 g/m², with high oil absorption for impregnation in power transformers and high-voltage capacitors. It qualifies as condenser paper under HTS 4805.91.20.00 due to its tailored purity and low weight for electrical insulation.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Submit impregnation compatibility certificates; pitfall is reclass to 4811 if pre-impregnated with resins

• Ensure declaration specifies 'not further worked'—slitting to narrow widths may trigger 4821 review

• Check ash content <1% and uniform thickness for condenser grade validation