US Tariffs on Man-Made Staple Fibers from Japan — 10% (2026)

Japan is a significant source of man-made staple fibers imports into the United States, with approximately $218B in total bilateral trade.

As of March 2026, man-made staple fibers imports from Japan face a base tariff rate of 10% under Section 122 of the Trade Act of 1974. This rate replaced the previous IEEPA reciprocal tariff following the Supreme Court's 6-3 ruling in V.O.S. Selections Inc. v. United States on February 20, 2026.

Under the Trade Act of 1974, Section 122 tariffs are limited to 150 days. The current 10% rate expires around July 24, 2026. Congressional action would be required to extend these tariffs beyond that date.

Man-Made Staple Fibers (HTS Chapter 55) carry an average MFN duty rate of 8.5% in addition to the Section 122 tariff. No additional Section 232 or Section 301 surcharges apply to most products in this category from Japan.

Key products in HTS Chapter 55 imported from Japan include Polyester staple fiber, Acrylic staple fiber, Nylon staple fiber, Viscose staple fiber, Blended yarn, and Woven blended fabrics.