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Japan March industrial production falls on chemical output decline

By Thomson Reuters Apr 29, 2026 | 7:02 PM

(Corrects to remove extraneous sentence in final paragraph)

TOKYO, April 30 (Reuters) – Japan’s factory output unexpectedly fell in March ​from the previous month, hit by ‌shrinking chemical and fuel product output amid Middle East supply disruptions, government data showed on Thursday.

The country’s industrial production shrank by 0.5%, the ‌Ministry ​of Economy, Trade and ⁠Industry (METI) said, marking ⁠the second consecutive month of decreases and disappointing market forecasts for a 1.1% gain.

Petroleum-based goods led the downturn. The production ​of polyethylene declined 27%, while polypropylene fell by 15% in March. Still, ⁠Japan maintains 1.8 months’ ⁠worth of inventory for these ​intermediate chemical products and has largely been able ​to minimise the impact on downstream ‌shipments, METI said.

Domestic production of fuels was also down across the board in March, with gasoline output falling 7.3% and ⁠diesel output declining 14.3%, the data showed.

Japan relies on the Middle East for some 95% of ⁠its ‌crude oil, much of which ⁠is channelled through the Strait ​of ‌Hormuz, a waterway that has been ​effectively ⁠shut by Iran after the U.S.-Israeli attack.

Manufacturers surveyed by METI expect output to fall again in April, down 0.7% on an adjusted estimate.

(Reporting by Kantaro Komiya; Editing by ​Jacqueline Wong)