2931.90.90.52/Triphenylbismuth Catalyst/Germany

Triphenylbismuth Catalyst from Germany

Triphenylbismuth is an organobismuth compound used as a catalyst in organic synthesis and polymer production. It qualifies for 2931.90.90.52 as an organo-inorganic compound with bismuth directly linked to carbon atoms, per Chapter 29 note definitions.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

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Import Tips

• Declare exact CAS number (603-33-8) and molecular formula on commercial invoice

• Include stabilizer information if supplied with anticaking agents per Chapter 29 note (f)

• Monitor bismuth import quotas; provide origin certificates for non-China sources