Natural Hydraulic Lime NHL 2 from Japan
Natural hydraulic lime NHL 2 is a powdered binder made from limestone containing natural silica and alumina impurities, calcined to produce hydraulic properties. It sets and hardens through a chemical reaction with water, even underwater, distinguishing it from non-hydraulic limes. Classified under HTS 2522.30.00.00 as hydraulic lime, excluding calcium oxide and hydroxide of heading 2825.
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%
Import Tips
• Obtain certificates verifying hydraulic properties and natural origin to avoid reclassification as slaked lime under 2522.20
• Check for free moisture content limits, as excessive water may trigger heading 2522.10 classification for quicklime
• Provide end-use documentation for construction to prevent misclassification under Chapter 38 cement mixtures