2518

Analysis

Heading 2518 of the Harmonized Tariff Schedule covers dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. It divides into 2 six-digit subheadings and 2 eight-digit tariff lines, with 2 ten-digit statistical suffixes below them.

1 of its 2 lines with a percentage rate are duty-free at the general rate (50%) and 1 are dutiable, from duty-free up to 3%. The median line pays 1.5%.

Its median rate of 1.5% sits at the 91st percentile of the headings in chapter 25.

The largest subheadings are 2518.10 (unnamed, 1 line) and 2518.20 (unnamed, 1 line).

By Census's concordance, most of its statistical lines are made by Dimension Stone Mining and Quarrying (212311) and Lime Manufacturing (327410). Those are the NAICS industries a US producer of these goods would report under.

The heading text decides whether a product belongs here at all (General Rule of Interpretation 1); the subheadings and lines below it only apply once that is settled. Section and chapter notes can override the heading wording, so read them for borderline goods.