U.S. imports hit $311.9 billion in May 2026, a 3.79% month-over-month increase — but the headline number masks dramatic swings at the country level. Ireland posted the sharpest gain among major trading partners, surging 30.75%, while France tumbled 25.58% and Thailand dropped 15.28%.
Ireland and Malaysia Lead the Gainers
Ireland's import value jumped from $4.67 billion in April to $6.10 billion in May — a $1.43 billion increase in a single month. Ireland is a major source of U.S. pharmaceutical and chemical imports, and this spike suggests either accelerated shipments ahead of potential regulatory or tariff changes, or a significant surge in drug product deliveries.
Malaysia was close behind, rising 26.52% from $6.25 billion to $7.91 billion. Malaysia has been a growing node in semiconductor and electronics supply chains as manufacturers diversify away from China, and May's numbers reinforce that structural shift is still gaining momentum.
China's Rebound Demands Attention
China's import value climbed from $19.79 billion in April to $23.51 billion in May — an 18.79% jump and the largest single-month dollar gain among all tracked countries at roughly $3.72 billion. After months of suppressed flows tied to elevated tariff uncertainty, this rebound signals that importers may be rebuilding inventory or that shipments delayed earlier in the year are now clearing customs.
Supply chain managers sourcing from China should treat this as a signal to revisit landed cost models. A sustained rebound at this scale would meaningfully shift China's share of total U.S. import volume, which had been trending downward over the past two years.
Mexico and Vietnam Hold Steady as Anchor Suppliers
Mexico remained the single largest source of U.S. imports in May at $54.18 billion, up 6.88% from $50.69 billion in April. That $3.49 billion month-over-month increase reflects continued strength in automotive, industrial, and consumer goods manufacturing along the U.S.-Mexico corridor.
Vietnam posted $21.76 billion in imports, a 6.64% gain from $20.40 billion. Both countries continue to absorb manufacturing capacity that has migrated out of China over the past several years, and their consistent growth suggests that nearshoring and Southeast Asia diversification strategies remain firmly in place.
Canada Ticks Higher; India Accelerates
Canada, the second-largest import source at $36.34 billion, grew a modest 3.74% month-over-month. That steady pace is consistent with Canada's role as a deeply integrated supplier of energy, automotive parts, and raw materials — categories that don't swing sharply month to month.
India grew 10.61%, moving from $8.26 billion to $9.14 billion. While still smaller in absolute terms than China or Mexico, India's consistent upward trajectory reflects expanding U.S. sourcing in pharmaceuticals, textiles, and technology services-adjacent goods. Businesses with diversification mandates are increasingly treating India as a primary alternative, not a secondary one.
France and Thailand Post Sharp Declines
France fell 25.58%, dropping from $6.90 billion to $5.14 billion — a $1.77 billion decline. France's U.S. export mix is heavily weighted toward luxury goods, aerospace components, and wines and spirits, categories that can be lumpy month to month but also sensitive to currency movements and consumer demand softness.
Thailand's 15.28% drop — from $13.48 billion to $11.42 billion — is more operationally significant for supply chain planners. Thailand is a critical source of hard disk drives, auto parts, and processed foods. A decline of this magnitude may reflect inventory destocking by U.S. importers, shipping delays, or the early effects of tariff-driven sourcing adjustments. Procurement teams relying on Thai suppliers should monitor whether this is a one-month correction or the start of a longer trend.
Japan also declined, falling 9.12% from $12.94 billion to $11.76 billion. Japanese auto and machinery exports to the U.S. have faced headwinds from both a stronger yen and ongoing trade policy uncertainty, and May's data is consistent with that pressure.
What This Means for Supply Chain Strategy
The May 2026 country-level data presents a fragmented picture: China rebounding, Southeast Asia growing, Europe pulling back, and North American partners holding firm. For importers, the divergence reinforces the value of multi-source strategies — single-country dependencies in either direction are creating meaningful cost and availability volatility.
The Ireland and Malaysia surges, in particular, are worth watching closely in June data. If those gains hold, they point to structural shifts in pharmaceutical and semiconductor sourcing that will have lasting implications for logistics networks, bonded warehouse capacity, and customs processing volumes at major U.S. ports of entry.