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Idemitsu Kosan, Ordinary Profit Forecast for the Fiscal Year Revised Upward by 52%

Tue Nov 11, 2025 3:30 pm JST Earnings

5019 Idemitsu Kosan Co.,Ltd. 【J-GAAP】

Earnings Report

Idemitsu Kosan Co.,Ltd. <5019> [TSE Prime] announced its financial results after the market closed on November 11th (15:30). The consolidated ordinary profit for the cumulative second quarter of the fiscal year ending March 2026 (April to September) significantly dropped 71.8% from the same period last year to 35.2 billion yen.

However, the full-year forecast for consolidated ordinary profit has been revised upward 51.8%, from the previous forecast of 56.0 billion yen to 85.0 billion yen (compared to 214 billion yen in the previous period), and the declining rate is expected to decrease from 73.9% to 60.4%.

Based on the first-half performance announced by the company and the full-year plan, our calculation indicates that the consolidated ordinary profit for the October to March period (second half) is expected to drop 44.7% from the same period last year to 49.7 billion yen.

In the most recent three-month period, from July to September (2Q), the consolidated ordinary profit/loss turned to a profit of 49.0 billion yen (compared to a loss of 11.9 billion yen in the same period last year). The operating profit/loss margin significantly improved from -1.1% in the same period last year to 2.4%.

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Actual Results

Accumulated Results 2nd Quarter
Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Progress Rate vs. First Half Announce Accounting Standards
Apr - Sep, 2023 4,024,462 202,921 226,460 164,946 114.9 58.8 Nov 14, 2023 J-GAAP
Apr - Sep, 2024 4,504,025 97,330 124,883 99,442 73.0 58.1 Nov 12, 2024 J-GAAP
Apr - Sep, 2025 3,805,653 25,844 35,265 36,075 29.5 41.5 Nov 11, 2025 J-GAAP
YoY -15.5% -73.4% -71.8% -63.7% -59.6%

First Half Results vs. Previous Guidance

Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Adj. Dividend Announce Accounting Standards
Apr - Sep, 2025 Guidance ー ー ー ー － 18 May 13, 2025 J-GAAP
Apr - Sep, 2025 Results 3,805,653 25,844 35,265 36,075 29.5 18 Nov 11, 2025 J-GAAP
Revision Rate － － － － －

Guidance Update

Full Year Update

Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Adj. Dividend Announce Accounting Standards
Mar, 2026 Prev 7,900,000 37,000 56,000 50,000 40.8 36 May 13, 2025 J-GAAP
Mar, 2026 New 7,950,000 68,000 85,000 75,000 61.2 36 Nov 11, 2025 J-GAAP
Revision Rate +0.6% +83.8% +51.8% +50.0% +50.0%

Current Period Guidance

Second Half Results

Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Adj. Dividend Announce Accounting Standards
Oct - Mar, 2024 4,686,200 64,855 89,881 4,613 3.5 18 May 13, 2025 J-GAAP
Oct - Mar, 2025 Guidance 4,144,347 42,156 49,735 38,925 31.8 18 Nov 11, 2025 J-GAAP
YoY -11.6% -35.0% -44.7% +743.8% +821.2%

Current Period Guidance

Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Adj. Dividend Announce Accounting Standards
Mar, 2024 8,719,201 346,316 385,246 228,518 161.3 32 May 14, 2024 J-GAAP
Mar, 2025 9,190,225 162,185 214,764 104,055 77.8 36 May 13, 2025 J-GAAP
Mar, 2026 Guidance 7,950,000 68,000 85,000 75,000 61.2 36 Nov 11, 2025 J-GAAP
YoY -13.5% -58.1% -60.4% -27.9% -21.3%

Quarterly Results

Fiscal Year Revenue Operating Profit Ordinary Profit Net Profit Adj. EPS Operating Profit Margin Announce Accounting Standards
Jul - Sep, 2024 2,243,736 -25,181 -11,945 4,420 3.2 -1.1 Nov 12, 2024 J-GAAP
Oct - Dec, 2024 2,372,439 25,945 40,930 28,012 20.8 1.1 Feb 12, 2025 J-GAAP
Jan - Mar, 2025 2,313,761 38,910 48,951 -23,399 -17.5 1.7 May 13, 2025 J-GAAP
Apr - Jun, 2025 1,843,035 -21,015 -13,738 5,243 4.3 -1.1 Aug 8, 2025 J-GAAP
Jul - Sep, 2025 1,962,618 46,859 49,003 30,832 25.2 2.4 Nov 11, 2025 J-GAAP
YoY -12.5% － － +597.6% +677.2%

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