Analysis
HTS 2610.00.00 covers chromium ores and concentrates under heading 2610 (chromium ores and concentrates). US Customs collects import statistics for it under 3 ten-digit suffixes, reported in metric tons and Cr2O3 t.
There is no general-rate duty on this line, which puts it with roughly 97% of the 39 tariff lines in chapter 26 that are also free. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
It is the only US line under subheading 2610.00, so the six-digit code used by every Harmonized System country and the eight-digit US line describe the same goods; a foreign tariff or an exporter's invoice showing 2610.00 points straight here.
Census statistics map these goods to NAICS 21229 (Other Metal Ore Mining), an industry of 58 US establishments employing 3,719 people, the industry a domestic producer of these goods reports under.
The ten-digit suffixes separate having a chromium content equivalent to…, having a chromium content equivalent to… and having a chromium content equivalent to…. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.
Statistical suffixes
| Code | Description | Units | NAICS |
|---|---|---|---|
| 2610.00.00.20 | Having a chromium content equivalent to not more than 40 percent chromic oxide (Cr2O3) | t, Cr2O3 t | 21229 |
| 2610.00.00.40 | Having a chromium content equivalent to more than 40 percent but less than 46 percent chromic oxide (Cr2O3) | t, Cr2O3 t | 21229 |
| 2610.00.00.60 | Having a chromium content equivalent to 46 percent or more chromic oxide (Cr2O3) | t, Cr2O3 t | 21229 |