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Business production cut

Japanese Petrochemical Firms Cut Ethylene Output

Analysis based on 8 articles · First reported Mar 09, 2026 · Last updated Mar 10, 2026

Sentiment
-40
Attention
4
Articles
8
Market Impact
Direct
Live prominence charts, article sentiment distribution, and event development timeline available on the NewsDesk Dashboard

The Japanese petrochemical industry faces significant disruption due to escalating tensions in the Middle East, leading to production cuts and potential halts by major players like Mitsubishi Chemical Group, Mitsui Chemicals, and Idemitsu Kosan. This situation could lead to higher prices for plastics and other industrial products, impacting various manufacturing sectors globally.

Petrochemical Chemical Manufacturing

Japanese petrochemical companies, including Mitsubishi Chemical Group, Mitsui Chemicals, and Idemitsu Kosan, are reducing or considering halting ethylene production due to concerns over naphtha supply shortages from the Middle East. This is a direct consequence of escalating tensions in the region and the potential effective closure of the Strait of Hormuz, a critical shipping route. Japan relies heavily on Middle Eastern naphtha, with about 60% of its supply imported and 70% of that coming from the Middle East. The production cuts by these major firms will impact the supply of ethylene, a key raw material for plastics, synthetic fibers, and other industrial products, potentially leading to broader economic consequences for Japan's manufacturing sector and global supply chains.

90 Mitsubishi Chemical Group reduced ethylene output
80 Mitsui Chemicals began cutting ethylene production
75 Idemitsu Kosan notified clients of potential production suspension
60 Mitsui Chemicals considering increasing naphtha purchases from other suppliers
loc
Escalating tensions in the Middle East are causing concerns about naphtha supply shortages, directly impacting Japanese petrochemical companies. The potential effective closure of the Strait of Hormuz is a key factor in these supply chain disruptions.
Importance 95 Sentiment -50
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Mitsubishi Chemical Group has reduced its ethylene output at its Kamisu plant due to potential raw material supply shortages from the Middle East. This action reflects concerns over naphtha supply amid escalating tensions, impacting its production capacity and potentially its profitability.
Importance 90 Sentiment -30
loc
The potential effective closure of the Strait of Hormuz is a critical factor in the raw material supply shortages for Japanese petrochemical firms, as it is a vital shipping lane for naphtha from the Middle East.
Importance 90 Sentiment -60
cnt
Japan relies heavily on naphtha imports, with about 60% of its supply imported and 70% of that coming from the Middle East. The escalating tensions and potential closure of the Strait of Hormuz pose a significant threat to Japan's petrochemical industry and broader manufacturing sector.
Importance 80 Sentiment -30
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Mitsui Chemicals Inc. has also begun cutting ethylene production at its Chiba and Osaka plants due to anticipated raw material shortages. The company is considering increasing naphtha purchases from non-Middle East suppliers to mitigate the impact.
Importance 70 Sentiment -20
stock
Idemitsu Kosan Co. has notified clients about potential suspension of operations at its ethylene facilities in Chiba and Yamaguchi Prefectures if the closure of the Strait of Hormuz persists, indicating a significant risk to its production.
Importance 70 Sentiment -20
ngo
The Japan Petrochemical Industry Association provides data on Japan's naphtha reliance, highlighting the country's vulnerability to Middle East supply disruptions.
Importance 20 Sentiment 0
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