Analysis
HTS 3602.00.00 covers prepared explosives, other than propellant powders under heading 3602 (prepared explosives, other than propellant powders). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in kilograms.
For statistics it divides in two: 3602.00.00.30 for dynamite and other high explosives, put up in cartridges… and 3602.00.00.60 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 25% of the 16 tariff lines in chapter 36. 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 3602.00, 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 3602.00 points straight here.
Census statistics map these goods to NAICS 325920 (Explosives Manufacturing), an industry of 80 US establishments employing 7,034 people. That is the industry code a US manufacturer of the same product would normally use.