Industrial Maleic Anhydride Briquettes from Japan
Compressed maleic anhydride briquettes for bulk industrial handling, an acyclic dicarboxylic acid anhydride under HTS 2917.14.5000. Primarily used in unsaturated polyester resin manufacturing, qualifying as a separate chemically defined compound per Chapter 29.
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 melting point (52-56°C) and assay documentation to distinguish from other anhydrides
• Ensure packaging prevents moisture absorption, as hydrolysis creates maleic acid (different HTS 2917.19)
• Declare CAS 108-31-6 and confirm not sulfonated/nitrated derivatives per Chapter notes