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Methanesulfonic Acid from Japan

Methanesulfonic acid (MSA) is a sulfonated derivative of methanol containing sulfonic acid group. Classified in HTS 2905.59.10.00 as sulfonated acyclic monohydric alcohol derivative used as catalyst and solvent. Meets Chapter 29 sulfonated derivatives note.

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

Use UN 3265 corrosive liquid packaging group II specifications

Include pH and concentration certificates (typically 99% pure)

Document plating bath applications to distinguish from other sulfonic acids