HTS tariff line · chapter 25
2503.00.00
Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur
Analysis
HTS 2503.00.00 covers sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur under heading 2503 (sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in metric tons.
For statistics it divides in two: 2503.00.00.10 for crude or unrefined sulfur and 2503.00.00.90 for other. Both pay the same duty; the suffix records which kind was imported.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 91% of the 78 tariff lines in chapter 25. 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 2503.00, 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 2503.00 points straight here.
Census statistics map these goods to NAICS 21239 (Other Nonmetallic Mineral Mining and Quarrying), an industry of 236 US establishments employing 10,238 people. That is the industry code a US manufacturer of the same product would normally use.