Tariff Changes and Capacity Constraints Signal Cost Pressures in Global Logistics

A LinkedIn post from Flexport outlines recent developments in global trade policy and freight markets, with potential implications for shippers’ costs and supply-chain planning. According to the post, the U.S. intends to reduce Section 232 duties on certain steel, aluminum, and copper derivative products from 50% to 25% as of April 6, 2026, while keeping 50% tariffs on many core metal articles.

The post notes that these tariffs will apply to the full value of affected goods, which could influence pricing structures and sourcing decisions for importers using metal-intensive components. It also highlights prospective 100% Section 232 tariffs on patented drugs from manufacturers lacking most-favored-nation drug pricing arrangements, with phased implementation over 120 to 180 days depending on company size.

According to Flexport’s commentary, companies that reshore pharmaceutical production to the U.S., or operate from certain trading partners, may qualify for reduced tariff rates, potentially accelerating investment shifts in the pharma supply chain. The post also flags limitations in Phase 1 of CBP’s automated IEEPA refund system, where reconciliation entries, drawback claims, open protests, and similar categories may not be eligible for refunds.

From an operational standpoint, the post describes blank sailings on key ocean trades such as TPEB, FEWB, and TAWB, along with disruptions at ports in China, Singapore, and Northern Europe. It suggests that carriers are using blank sailings to improve vessel utilization and that upcoming rate increases are expected on TPEB and TAWB lanes, potentially raising logistics costs for exporters and importers.

On the air side, Flexport’s post points to ongoing impacts from Middle East conflict, including rising fuel surcharges on ex-China routes and capacity constraints with backlogs ex-South Asia. It further notes strong demand and tight capacity on some ex-Taiwan routes tied to traditional peak-season activity, conditions that could compress margins for shippers and benefit asset owners and capacity providers if higher rates persist.