Business Segments Idemitsu Kosan Co.,Ltd.

Equities

5019

JP3142500002

Oil & Gas Refining and Marketing

Market Closed - Japan Exchange Other stock markets 14:30:00 13/01/2026 HKT			5-day change	1st Jan Change
1,241.00 ^JPY	+2.43%		+5.21%	+4.90%

01-07	Japan Refiners See Little Scope for Venezuelan Crude	MT
12-25	Japan's Cosmo Oil restarts Sakai CDU after unplanned shutdown	RE

Sales 2025 by Business Segment

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Sales 2025 by Geography

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Historical Breakdown of Revenue by Business Segments

Operating Income: Breakdown by Business Segment

Breakdown by Business Segment (JPY)

Fiscal Period: March	2021	2022	2023	2024	2025
Oil and Gas Refining and Marketing
Petroleum	3,612B	5,249B	7,447B	7,111B	7,720B
Total Assets	2,510B	3,064B	3,302B	3,424B	3,185B
CAPEX	-55.96B	-47.35B	-49.27B	-27.72B	-41.57B
D&A	64.44B	65.58B	71.06B	65.92B	59.65B
Operating Income	143B	360B	60.14B	210B	108B
Petroleum Products	-	-	-	-	-
Total Assets	-	-	-	-	-
CAPEX	-	-	-	-	-
D&A	-	-	-	-	-
Operating Income	-	-	-	-	-
Inorganic Dyes and Pigments
Basic Chemicals	348B	594B	701B	642B	635B
Total Assets	348B	410B	391B	384B	342B
CAPEX	-13.08B	-10.26B	-8.4B	-11.62B	-10.75B
D&A	6.18B	7.14B	7.28B	6.75B	7.22B
Operating Income	3.01B	6.94B	10.16B	26.07B	-9.99B
Functional Materials	350B	440B	536B	540B	530B
Total Assets	266B	315B	342B	362B	392B
CAPEX	-10.16B	-14.73B	-6.74B	-13.07B	-10.15B
D&A	8.15B	9.7B	9.79B	8.96B	10.05B
Operating Income	12.19B	15.52B	17.67B	27.22B	27.95B
Oil and Gas Production
Resources	173B	339B	672B	370B	265B
Total Assets	342B	329B	430B	302B	288B
CAPEX	-35.48B	-31.19B	-14.83B	-5.66B	-13.47B
D&A	24.12B	24.54B	16.76B	8.44B	9.8B
Operating Income	4.1B	75.39B	217B	107B	68.39B
Electric Power By Solar Energy
Power and Renewable Energy	125B	142B	202B	147B	131B
Total Assets	203B	239B	230B	237B	238B
CAPEX	-32.01B	-10.42B	-12.53B	-3.26B	-13.48B
D&A	4.36B	6.59B	8.07B	8.57B	8.42B
Operating Income	-17.23B	-8.16B	2.07B	-7.86B	-11.34B
Electronic Components
Other	7.52B	7.1B	7.61B	16.99B	18.36B
Total Assets	158B	120B	118B	31.5B	18.82B
CAPEX	-26M	-112M	-274M	-152M	-302M
D&A	27M	44M	143M	192M	227M
Operating Income	931M	805M	1.19B	519M	1.15B
Unallocated Adjustment	-58.84B	-83.35B	-109B	-109B	-110B
Total Assets	128B	124B	52.08B	272B	313B
CAPEX	-4.71B	-4.73B	-6.65B	-6.65B	-21.64B
D&A	523M	682M	806M	9.72B	9.71B
Operating Income	-6.14B	-16.48B	-25.95B	-16.09B	-22.35B
Industrial Organic Chemicals
Petrochemical Products	-	-	-	-	-
Total Assets	-	-	-	-	-
CAPEX	-	-	-	-	-
D&A	-	-	-	-	-
Operating Income	-	-	-	-	-

Geographical Revenue Distribution History

Geographical breakdown of sales (JPY)

Fiscal Period: March	2021	2022	2023	2024	2025
Japan	3,477B	-	6,696B	6,333B	6,552B
Total Assets	1,248B	-	1,191B	1,158B	1,149B
Asia/Oceania	775B	-	1,744B	1,453B	1,704B
Total Assets	145B	-	107B	108B	105B
North America	216B	-	795B	827B	842B
Total Assets	-	-	-	-	119B
Others	87.82B	-	222B	107B	91.52B
Total Assets	129B	-	91.86B	96.28B	154M
Europe	-	-	-	-	-
Total Assets	-	-	-	-	-