Oolitic Limestone Blocks from Japan
Oolitic limestone, a calcareous building stone composed of spherical calcite grains, cut into rectangular slabs for construction and monuments. With specific gravity over 2.5, it's used in historic restoration projects. HTS 2515.20.00.00 covers this as 'other' calcareous stone, roughly trimmed.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include petrographic reports proving calcareous composition >50% calcium carbonate
• Avoid bundling with mortar or additives, as mixtures may fall under 3824 or other headings
• Check for radioactivity in certain limestone deposits; declare if applicable for safety compliance