2836.50.00.00/Coated Calcium Carbonate Stearic Acid/Japan

Coated Calcium Carbonate Stearic Acid from Japan

Calcium carbonate particles surface-treated with stearic acid for hydrophobic properties, still classified as base compound under HTS 2836.50.00.00 if coating <5%. Used in polyolefin films and sheets.

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

• Quantify coating percentage via TGA analysis (<5% maintains compound status)

• Test for dispersion quality in LLDPE matrix per ASTM standards

• Declare organic coating components separately on entry documents