2841.90.40.00/Aluminum Sodium Oxide (Beta-Alumina)/Japan

Aluminum Sodium Oxide (Beta-Alumina) from Japan

Beta-alumina (NaAl11O17) solid electrolyte powder for sodium-sulfur batteries. Pure aluminate structure qualifies for HTS 2841.90.40.00 as oxometallic salt. High ionic conductivity material.

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

• Ionic conductivity test data; battery exemption possible

• Pitfall: ceramic parts to 8547 if formed