3810.90.20.00/Phosphoric Acid Rust Converter Gel/Japan

Phosphoric Acid Rust Converter Gel from Japan

Thickened phosphoric acid gel for converting rust on iron surfaces to stable phosphate layer. Consists solely of inorganic phosphoric acid, phosphates, and silicates, qualifying for 3810.90.2000 as metal pickling preparation. Applied in maintenance for structural steel.

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%

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Import Tips

• Submit FTIR analysis proving no organic thickeners; silica-based only allowed

• Include REACH-like documentation for phosphate compounds if from EU