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Harmonized Tariff Schedule (2025 HTS Revision 8 (04/10/2025))

Heading Duty(general) Duty(china) Article Description Compare Code
2901.24     Buta-1,3-diene and isoprene: --
2901.24.10.00 Free  The duty provided in the applicable subheading + 25%  Buta-1,3-diene
Isoprene:
vs-290124
2901.24.20.00 Free  The duty provided in the applicable subheading + 25%  Having a purity of 95 percent or more by weight vs-2901241000
2901.24.50.00 Free  The duty provided in the applicable subheading + 25%  Other vs-2901242000