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 Plastics from Japan — 10% (2026)

Tariff Rate Breakdown

10%

Section 122 Base

10%

Total Effective Rate

Among US trading partners for plastics, Japan plays a notable role, with approximately $218B in total bilateral trade.

The current tariff framework for plastics from Japan reflects the post-SCOTUS landscape: a 10% Section 122 tariff replaced the previously higher IEEPA rates after the Court's February 2026 ruling.

The Section 122 tariff is subject to a 150-day statutory time limit and is set to expire approximately July 24, 2026, unless Congress acts to extend or replace it. Importers should monitor legislative developments closely as this deadline approaches.

Plastics (HTS Chapter 39) carry an average MFN duty rate of 4.2% 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 39 imported from Japan include Polyethylene, Polypropylene, PVC pipe, PET bottles, Plastic bags, and Plastic containers.

Common Products in Chapter 39

PolyethylenePolypropylenePVC pipePET bottlesPlastic bagsPlastic containersAcrylic sheetsSiliconePolystyrene foam

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Frequently Asked Questions

What is the current tariff rate on plastics from Japan?

As of March 2026, plastics from Japan face a base tariff of 10% under Section 122. The effective rate can be up to 10%.

Will the tariff on plastics from Japan 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 plastics imports from Japan?

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.