Biphenyl-4,4'-dicarboxylic Acid from Japan
BPDA provides extended conjugation for high-performance polymers in displays and films. Classified HTS 2917.39.70.00 aromatic polycarboxylic despite extended system. Enables liquid crystalline behavior.
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
• Extended aromatic confirmed single benzene-per-carboxyl unit
• Display manufacturers need angular light scattering for purity
• Molecular weight analysis prevents Chapter 39 prepolymer confusion