2839.90.10.00/Spray-Dried Potassium Silicate Beads/Japan

Spray-Dried Potassium Silicate Beads from Japan

Beaded form of potassium silicate for easy handling in concrete admixtures and catalysts. HTS 2839.90.1000 covers this commercial form as a potassium silicate compound. Popular for construction chemical imports.

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

• Physical form (beads) doesn't change classification; focus on chemical composition

• Free-flowing agents may trigger 'preparation' scrutiny