U.S. imports of Products Described in U.S. Note 3 to Section 6 Containing A Pyrimidine Ring (Whether or not Hydrogenated) or Piperazine Ring in the Structure (HS 2933597000) totaled $8.8M in August 2026, imported from 21 countries.

Importers of Products Described in U.S. Note 3 to Section 6 Containing A Pyrimidine Ring (Whether or not Hydrogenated) or Piperazine Ring in the Structure paid $87K in duties in August 2026, an average duty rate of 0.99% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Products Described in U.S. Note 3 to Section 6 Containing A Pyrimidine Ring (Whether or not Hydrogenated) or Piperazine Ring in the Structure imports of $8.8M in August 2026 ran 43% above the year-to-date monthly average of $6.2M.