China-U.S. Trade & Tariff Weekly Update

May Week 2, 2026

Foreword

This weekly column provides a distilled analysis of critical trade compliance updates to help cross-border enterprises and supply chain managers navigate the volatile regulatory landscape. This week’s focus: The Section 301 review timeline, a seismic shift in Section 232 valuation, and legal challenges to IEEPA-based global tariffs.

Executive Summary

• Section 301 Review: The application window for List 1 is now open. Importers must decide on “counter-lobbying” strategies before the July deadlines.
• Section 232 Shift: The tax basis has pivoted from “metal content” to “Full Customs Value,” which will exponentially increase costs for composite products containing metal.
• Global Tariffs: CIT has initially ruled the 10% global tariff illegal. While collection continues during appeal, a “refund window” is beginning to take shape.

1. Section 301: Key Timeline for the Second “Four-Year Review”

Following the statutory requirement, the USTR has initiated the review for the two tranches of China-origin tariffs effective since 2018. If no domestic industry representatives request a continuation, these duties will expire automatically.

【Critical Deadlines & Milestones】

Strategic Note: While current exclusions are extended through November 10, 2026, businesses should remain alert to the USTR’s ongoing “Overcapacity” investigation. New Section 301 measures may be introduced as old ones are phased out.

2. Section 232: New Valuation Logic for Steel, Aluminum, & Copper

Policy Shift: CBP is now enforcing the May directives, changing the calculation of Section 232 duties from being based on “the value of the metal content” to the “Full Customs Value of the imported article.”

【New Duty Structure Explained】

• 50% Flat Rate: Applies to articles made entirely or almost entirely of steel, aluminum, or copper.
• 25% Derivative Rate: Applies to most downstream derivative products containing these metallic components.
• Exemption Incentive: Articles proven to utilize raw metals “Melted & Poured in the USA” may qualify for a preferential rate of 10% (Note: This is the final consolidated rate intended to encourage U.S. reshoring).

3. Legal Spotlight: Challenges to the 10% Global Tariff (IEEPA)

Legal Context:

The 10% global tariff implemented in early 2025 is primarily authorized under the International Emergency Economic Powers Act (IEEPA). While the administration previously cited Section 122 (Balance of Payments), the U.S. Court of International Trade (CIT) has focused its scrutiny on whether IEEPA was properly invoked without a proven “national emergency.”

Latest Status:

On May 7, the CIT ruled the tariff authorization procedurally flawed.

• Current Enforcement: CBP has not stopped collection pending government appeal.
• Compliance Action: Ensure your broker utilizes the CAPE Refund System for these entries. If the ruling is upheld on appeal, entries flagged in the system will be eligible for automatic refunds with interest.

Compliance Action Plan

1. URGENT: Recalculate Landed Costs for Composite Goods Due to the 232 valuation change, if your products (e.g., machinery, electronics) contain metal casings or frames, your duty exposure may shift from “partial” to “full value.” Update your DDP (Delivered Duty Paid) pricing models immediately.
2. ROUTINE: Join Industry Lobbying EffortsRegarding the Section 301 review, trade associations are actively gathering evidence on how these tariffs damage U.S. supply chain resilience. Impacted firms are encouraged to submit public comments to the USTR.

Monitoring Log (No Changes This Week)

• De Minimis (Section 321): No updates; the $800 threshold remains intact.
• AD/CVD: No new rulings on Mexican industrial components this week; currently in the public comment phase.

This report is curated weekly. Stay informed, stay compliant.

If these points hit home and you’re tired of the usual logistics runaround, let’s have a real conversation.