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Transformer Oil-Impregnable Condenser Paper from Mexico

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 — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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