2936.29.16

Analysis

HTS 2936.29.16 covers niacin and niacinamide under heading 2936 (provitamins and vitamins, natural or reproduced by synthesis (including natural…). US Customs collects import statistics for it under 3 ten-digit suffixes, reported in kilograms.

Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 26% of the 1050 tariff lines in chapter 29. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.

Goods from countries without normal trade relations pay the column 2 rate of 25% instead of nothing, so origin decides between free entry and a 25% duty.

The other lines in the same group are 2936.29.10 (other vitamins and their derivatives: folic acid, duty-free), 2936.29.20 (aromatic or modified aromatic, duty-free) and 2936.29.50 (other: other, duty-free).

Census statistics map these goods to NAICS 325411 (Medicinal and Botanical Manufacturing), an industry of 761 US establishments employing 30,382 people. That is the industry code a US manufacturer of the same product would normally use.