How the US-China Trade War Is Redirecting Cargo Flows Through Southeast Asia — and What It Means for Shipping

How the US-China Trade War Is Redirecting Cargo Flows Through Southeast Asia — and What It Means for Shipping

The News Hook

On April 2, 2025 — dubbed 'Liberation Day' — the United States imposed sweeping tariffs of up to 145% on Chinese imports, before negotiating a 90-day truce in May 2025 that reduced the rate to 30%. The shock sent global cargo flows into a rapid and in some cases permanent restructuring. Chinese exporters, unable to ship directly to the US competitively, accelerated their 'China+1' manufacturing strategy — moving production and routing through Vietnam, Malaysia, Thailand, and Indonesia to access the US market at lower tariff rates averaging 10–20%.


145%

Peak US tariff on China

+48%

Vietnamese furniture exports to US YoY

9.6%

China–ASEAN trade growth YoY


How Southeast Asia Became the World's New Trade Hub

The numbers tell a clear story. Trade between China and ASEAN totalled 3.67 trillion yuan in 2025 — a 9.6% year-on-year increase — at the same time as China's trade with the United States fell. US imports from ASEAN surged as manufacturers relocated or rerouted production through Vietnam, Malaysia, and Thailand. A Malaysian port manager was quoted saying: 'Our 2025 expansion plans became 2022 emergencies.'

  • Vietnam: boomed in electronics and apparel — Foxconn and other Tier-1 electronics suppliers accelerating capacity shifts

  • Malaysia: attracting semiconductor and tech assembly investment; became the sole issuer of Non-Preferential Certificates of Origin for US-bound shipments in May 2025, tightening oversight

  • Thailand: attracting high-value logistics technology investment

  • Indonesia: signalled willingness to restrict re-export of Chinese goods as part of US trade negotiations

The Shipping Impact: What Has Actually Changed

These trade flow shifts have direct operational consequences for shipping and port agency:

  • Intra-Asia shipping volumes rose sharply: goods moving from Chinese factories to ASEAN assembly hubs before onward export to the US added a new layer of short-sea and feeder shipping activity

  • Singapore as transshipment hub: as ASEAN export volumes grew, Singapore's container throughput hit a record 44.66 million TEUs in 2025, an 8.6% increase year-on-year, driven partly by increased ASEAN-US cargo flows

  • Vessel type mix shifted: smaller feeder and multi-purpose vessels serving intra-ASEAN routes increased in number; port agents managing mixed cargo calls saw greater complexity

  • Compliance and documentation scrutiny intensified: US Customs increased origin verification for ASEAN-routed goods; Bill of Lading accuracy, Certificate of Origin documentation, and cargo manifests became more heavily audited

The Outlook: Uncertainty Is the New Normal

The 90-day US-China tariff truce agreed in May 2025 provided short-term relief but left both sides with leverage to re-escalate. Analysts at Macquarie note that Southeast Asian economies proved more resilient than expected — 'beneficiaries of an unlikely trade war.' Asia is expected to contribute around 60% of global economic growth in 2025 and 2026 even amid trade headwinds. The structural shift of manufacturing to Southeast Asia is now a decade-long trend, not a temporary reaction.

StarGlobal Port Agency Perspective

Singapore's unique position as a 10% tariff-rate destination (while most Southeast Asian nations face 20–40%) makes it a strategic gateway. As cargo flows through the region grow more complex, having a ship agent that understands regional routing, transshipment logistics, and documentation compliance is no longer optional.