UPDATE: Section 122 tariff (10%) in effect since Feb 24 — expires ~July 24 (~126 days). 24 states challenge in court (March 5). USTR launches new Section 301 probes (March 11). EU trade deal vote imminent. Full analysis →

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

Tariff Rate Breakdown

10%

Section 122 Base

10%

Total Effective Rate

Vietnam is a significant source of man-made staple fibers imports into the United States, with approximately $127B in total bilateral trade.

Following the Supreme Court's landmark February 20, 2026 decision striking down IEEPA tariffs, imports of man-made staple fibers from Vietnam are now subject to a 10% tariff under Section 122 of the Trade Act of 1974, effective February 24, 2026.

This 10% rate has a built-in expiration: Section 122 limits presidential tariff authority to 150 days, meaning the tariff expires approximately July 24, 2026 without congressional renewal.

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 Vietnam.

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

Common Products in Chapter 55

Polyester staple fiberAcrylic staple fiberNylon staple fiberViscose staple fiberBlended yarnWoven blended fabrics

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Frequently Asked Questions

What is the current tariff rate on man-made staple fibers from Vietnam?

As of March 2026, man-made staple fibers from Vietnam face a base tariff of 10% under Section 122. The effective rate can be up to 10%.

Will the tariff on man-made staple fibers from Vietnam change?

The Section 122 tariff of 10% expires approximately July 24, 2026, unless Congress extends it. Monitor legislative developments for updates.

How did the Supreme Court ruling affect man-made staple fibers imports from Vietnam?

The Supreme Court's February 20, 2026 ruling struck down IEEPA reciprocal tariffs as exceeding presidential authority. The president signed a replacement 10% tariff under Section 122 the same day, effective February 24.