2843.10.00.00/Colloidal Gold Diagnostic Reagent/Japan

Colloidal Gold Diagnostic Reagent from Japan

Gold nanoparticle colloid conjugated with antibodies for lateral flow assays in pregnancy tests. Remains under HTS 2843.10.00.00 if imported as bulk colloid prior to conjugation.

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

• If pre-conjugated, may require FDA prior notice; bulk colloids do not

• Label as research chemical to avoid immediate medical device scrutiny

• Ensure stability data for long-sea transit without aggregation