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Idemitsu Kosan Co. (5019) investor relations material
Idemitsu Kosan Co. Q1 2026 earnings summary
Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.Q1 2026 earnings summary8 Aug, 2025
Executive summary
Operating and equity income excluding inventory impact fell ¥48.3B year-over-year, mainly due to negative time lag from crude oil price drop, lower coal prices, and weaker basic chemical margins.
Net sales for the three months ended June 30, 2025, were ¥1,843.0B, down 18.5% year-over-year, with an operating loss of ¥21.0B and net income attributable to owners of ¥5.2B, down 94.5%.
1Q results exceeded initial forecasts due to robust domestic margins, but full-year guidance remains unchanged.
Comprehensive income was negative ¥13.4B, compared to ¥126.2B in the prior year period.
Financial highlights
Net sales decreased 18.5% year-over-year to ¥1,843.0B; operating income dropped to -¥21.0B from ¥122.5B.
Net income attributable to owners fell 94.5% year-over-year to ¥5.2B; excluding inventory impact, net income was ¥40.3B, down 34.8%.
Inventory impact was -¥50.5B, a swing of -¥98.5B year-over-year.
Gross profit for the quarter was ¥104.6B, down from ¥245.5B year-over-year.
Equity ratio improved to 38.3% from 36.0% at prior quarter-end.
Outlook and guidance
FY2025 full-year forecasts remain unchanged: net sales ¥7,900.0B, operating income ¥37.0B, net income attributable to owners ¥50.0B.
Assumptions: Dubai crude oil at $65/bbl, Australian coal at $95/ton, exchange rate at ¥145/USD.
Sensitivity: ±$10/bbl crude oil impacts operating income by ±¥30B (excluding inventory) and ±¥68B (inventory impact).
No change in the previously announced forecasts as of May 13, 2025.
Reconcile Q1 loss with full-year profit forecast.
What drives Functional Materials segment income growth?
Impact of subsidiary fiscal year-end change?
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Next Idemitsu Kosan Co. earnings date
Q2 202611 Nov, 2025
Next Idemitsu Kosan Co. earnings date
Q2 202611 Nov, 2025
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Frequently asked questions
Idemitsu Kosan Co., Ltd. is a Japanese company primarily engaged in the energy and chemical industries. Its operations include the exploration, production, and refining of crude oil, as well as the manufacture and sale of petroleum products such as gasoline, diesel, and lubricants. The company is also involved in the production of petrochemicals, including basic chemicals, performance materials, and electronic materials. Additionally, Idemitsu Kosan engages in renewable energy development, such as solar and geothermal power, and operates in sectors like mining and agriculture. Idemitsu Kosan Co., Ltd. is headquartered in Tokyo, Japan, and its shares are listed on the Tokyo Stock Exchange.
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