</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
8540.89.00.80/Storage Tube Memory Device/Japan

Storage Tube Memory Device from Japan

Electrostatic vacuum tube storing binary data as charge patterns on dielectric surface, read/written by electron beam. Rare computer memory technology classified under HTS 8540.89.00.80 as other tubes.

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%
Calculate with your customs valueVerify classification with AI

Import Tips

• Historical artifact declaration may qualify for duty-free museum entry (9705)

• Prove functionality vs scrap status to avoid 8549 classification

• Documentation must show electron beam addressing vs solid-state memory