3824.40.20.00/Strontium Carbonate Concrete Shrinkage Compensator/Japan

Strontium Carbonate Concrete Shrinkage Compensator from Japan

Inorganic strontium carbonate powder added to cement to compensate drying shrinkage through expansive crystal formation. Prepared for concrete use per HTS 3824.40.20.00, wholly inorganic. Reduces cracking in restrained concrete elements.

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

• Expansion test data per ASTM C845; strontium purity certificate; dosage precision labeling