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8546.90.00.00/Mullite Porcelain Support Insulator/Japan

Mullite Porcelain Support Insulator from Japan

Mullite porcelain support insulators for industrial electric furnaces and kilns. HTS 8546.90.00.00 for high-temperature ceramic electrical insulators.

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

• Specify mullite content and pyrometric cone equivalent; test for thermal shock resistance; declare load-bearing capacity