Several categories of synthetic dyes and pigment intermediates imported from China are subject to Section 301 tariffs. Importers should verify the applicable HTS classification at the 10-digit level to determine whether their specific product falls within an affected tariff line and whether any exclusions apply.

Dyes are soluble colorants that bond chemically to substrates such as fibers, while pigments are insoluble particles dispersed in a medium. This distinction matters for HTS classification — dyes and pigments often fall under different Chapter 32 headings — and can affect applicable duty rates and any antidumping orders in force.