Finance

Asia's factory activity slows on cost pressure from Iran war

Published by Global Banking & Finance Review

Posted on April 1, 2026

3 min read

· Last updated: April 1, 2026

Add as preferred source on Google
Asia's factory activity slows on cost pressure from Iran war
Global Banking & Finance Awards 2026 — Call for Entries

By Leika Kihara TOKYO, April 1 (Reuters) - Many Asian economies saw factory activity slow in March, business surveys showed on Wednesday, a sign surging fuel costs and heightening global uncertainty

Factory input costs soar worldwide as Iran war snarls up supply chains

Global Manufacturing Faces Rising Costs and Disruptions

By Jonathan Cable and Leika Kihara

LONDON/TOKYO, April 1 (Reuters) - Factories across the world faced soaring input costs and supply chain disruptions in March due to the Iran war as underlying tepid demand threatened to undermine the manufacturing sector's fragile recovery, surveys showed.

The conflict has disrupted global logistics networks, causing delivery delays, pushing up input price inflation and distorting headline growth measures.

Higher oil and energy prices led manufacturers to react and raise selling prices.

Impact on Headline PMI Numbers

Headline PMI numbers - usually a sign of increased activity - were falsely elevated by the supply shock lengthening delivery times, said Chris Williamson, chief business economist at S&P Global.

That was the case for the headline euro zone reading. In Asia, many economies saw it fall, a sign surging fuel costs and heightening uncertainty from the Iran war were taking a toll.

Euro Zone Manufacturing Trends

Wednesday's S&P Global euro zone Manufacturing Purchasing Managers' Index (PMI) rose to 51.6 in March from February's 50.8, higher than a preliminary estimate of 51.4.

A reading above 50.0 would normally indicate growth in activity.

"While the uptick in the headline index has been, at face value, somewhat surprising given the renewed energy shock in global markets - particularly as the flash release pointed to weaker services - the aggregate masks meaningful cross-country divergence," said Mariana Monteiro at JP Morgan.

Country-Specific Euro Zone Data

Germany and Italy recorded their strongest readings in 46 and 37 months respectively, while Spain was the only country in contraction territory. Greece posted the highest reading, followed by Ireland, while France's manufacturing sector stagnated.

In Britain, outside the European Union, cost pressures soared and delivery delays - due to ships avoiding the Strait of Hormuz - were the longest since mid-2022.

Asian Manufacturing Under Strain

ASIAN STRAIN

The findings highlight the challenge policymakers face in Asia, a region that buys about 80% of the oil that is shipped through the Strait of Hormuz, making many countries vulnerable to the hit from the energy shock caused by the war - already, drivers in Manila are facing diesel prices that have tripled, while a jet-fuel squeeze looms in Vietnam and South Korea's major cosmetics firms are searching far and wide for plastic resin.

China and Southeast Asia

China's manufacturing sector expanded in March for a fourth straight month - albeit more slowly and as inflationary pressures and supply chain strains intensified, a private survey showed.

The RatingDog China General Manufacturing PMI fell to 50.8 in March from 52.1, missing analysts' forecast of 51.6.

Manufacturing activity slowed in economies ranging from Indonesia, Vietnam, Taiwan and the Philippines, other PMIs showed, highlighting the pain the Middle East conflict was already inflicting on businesses.

Japan and South Korea

Japanese factories also took a hit from the souring business mood and cost pressures, which hit a 19-month high.

The final S&P Global Japan Manufacturing PMI fell to 51.6 in March from 53.0. Input prices rose at the fastest rate since August 2024.

South Korea was an outlier with factory activity expanding at the strongest pace in more than four years, led by semiconductor demand and new product launches.

(Reporting byJonathan Cable and Leika Kihara; Editing by Sam Holmes and Hugh Lawson)

Key Takeaways

  • China’s official manufacturing PMI rose modestly to 50.4 in March, but inflationary pressures and energy cost risks loom (apnews.com)
  • Energy disruptions from the Iran war—closure of the Strait of Hormuz, oil spikes above $120—are escalating cost pressure across Asia (en.wikipedia.org)
  • Indonesia’s PMI slowed to around 50.1 in March from 53.8 in February, as war‑related supply shocks and input cost hikes weighed on activity (rri.co.id)
  • South Korea remained resilient, with February PMI at 51.1 driven by semiconductor export strength, although risks from disruptions to chip supply chains persist (investing.com)

References

Frequently Asked Questions

How has the Iran war affected factory activity in Asia?
The Iran war has increased oil prices and global uncertainty, slowing factory activity and straining supply chains in several Asian economies.
Which Asian countries experienced slower manufacturing growth in March?
Japan, Indonesia, Vietnam, Taiwan, and the Philippines all saw slower manufacturing growth in March due to rising costs and uncertainty.
How did oil price increases impact Asian economies?
Higher oil prices raised energy and production costs, affecting 80% of the region's oil imports and increasing inflationary pressures.
Were there any exceptions to the factory slowdown in Asia?
Yes, South Korea experienced strong manufacturing growth led by demand for semiconductors and new products, bucking the regional slowdown.
What challenges do central banks in Asia face due to the Iran war?
Central banks must manage inflation, currency depreciation, and safeguard economies from the indirect effects of the oil-driven economic shock.

Tags

Related Articles

More from Finance

Explore more articles in the Finance category