6815.91.00

Analysis

HTS 6815.91.00 covers containing magnesite, magnesia in the form of periclase, dolomite including in the form of dolime, or chromite under heading 6815 (articles of stone or of other mineral substances (including carbon fibers, articles of…). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in kilograms.

For statistics it divides in two: 6815.91.00.11 for containing by weight more than 70 percent magnesia… and 6815.91.00.71 for other. Both pay the same duty; the suffix records which kind was imported.

The normal trade relations rate here is zero, shared by about 60% of the 67 tariff lines in chapter 68, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.

Goods from countries without normal trade relations pay the column 2 rate of 30% instead of nothing, so origin decides between free entry and a 30% duty.

Census statistics map these goods to NAICS 327120 (Clay Building Material and Refractories Manufacturing), an industry of 461 US establishments employing 23,500 people. That concordance is how imports of this line are compared with US output.