CONTENTS
Message from Top Management
Business Structure Reforms
Human Capital / Human Capital Strategy
Evolution of the Business Platform / Innovation Management
Sustainability
Corporate Governance
Data Section
Idemitsu Integrated Report 2025 2
Value Creation Story
Origins and History ■ The Current Idemitsu Group ■ Value Creation Process
Value Creation Story
Since its founding, Idemitsu Kosan has practiced People-Centered Management, building a 114-year history. Over the course of that history, we have overcome major environmental changes and numerous challenges. We will carry on these values and continue to take on the challenge of creating new value going forward.
Origins and History
The Current Idemitsu Group
Value Creation Process
CONTENTS
Message from Top Management
Business Structure Reforms
Human Capital / Human Capital Strategy
Evolution of the Business Platform / Innovation Management
Sustainability
Corporate Governance
Data Section
Idemitsu Integrated Report 2025 3
Value Creation Story
Origins and History ■ The Current Idemitsu Group ■ Value Creation Process
Achieving Both Sustainable Business Growth and Human Resource
Development
Vision for 2050
Shaping Change
Vision for 2030
Your Reliable Partner for a Brighter Future
Competencies
Take on new Empower
challenges people
boldly Think thoroughly Overcome and make confident differences
decisions
Basic attitudes
Complete sense of Deep regard for
ownership sincerity and
Constant desire mutual trust for growth
Action Guideline
Management Truly inspired
Philosophy
Origins and HistoryFor Idemitsu, our Management Philosophy is a statement of "what is the meaning of our existence?" Our Management Philosophy is also a universal, unshakeable coordinate, like the North Star, and for employees, it is a guide when they are unsure of their judgments, and it represents a vision to which they should aspire at all times.
Our Vision changes with the times and the environment, and represents our initiatives to realize a sustainable society that we must connect to the future.
Guided by our Action Guideline for realizing our Management Philosophy, we are striving to achieve our Vision. Through these efforts, we believe we can move closer to our goal of achieving both sustainable business growth and human resource development.
The Origin of ManagementNingen-Soncho (Having respect for human beings) Written by Sazo Idemitsu
A History of Over 110 Years of Challenge
Idemitsu Shokai founded in Moji Nissho Maru Incident
Began research and development of Began supplying steam to Idemitsu Commenced development of OLED Response to the Great East Japan Constructed the Nghi Son Refinery in Launched the new brand apollostation
(Fukuoka Prefecture)
Became the first company in the world to
solar cells
Engaged in the development of new energy sources
Oita Geothermal Co., Ltd. Takigami materials
Earthquake
Vietnam
Supporting local communities while
Expanded operations in Japan and over- import petroleum products from Iran seas, focusing on sales of petroleum prod- directly
ucts and lubricants
Power Plant
Successfully prototyped the world's first OLED Secured energy supply systems and Built a second refinery in Vietnam, contribut- addressing the future of energy, mobility,
Full-scale commitment to alternative television and obtained patents for high-effi- ensured delivery to affected areas in ing to the country's industrial development and society
energy sources
ciency, long-lifetime deep blue emitters Tohoku and Kanto
2021
2018
2011
2002
1996
1978
1953
1911
Timeline Through 2025
Idemitsu Shokai
1911
WEB Company Information History
Niitsu Sekiyu
1939
Idemitsu Kosan
1940
Hayama Sekiyu
1935
Asahi Sekiyu
1921
Rising Sun Sekiyu
1900
Showa Sekiyu
1942
Idemitsu Kosan
Business integration in 2019
Change of president in 2025
Showa Shell Sekiyu
1985
Shell Sekiyu
1948
These are the words of the founder, Sazo Idemitsu, in his own handwriting. We intend to communicate to the world the importance of "Ningen-Soncho (Having respect for human beings)," a key tenet of our history for over a century, and unassailable ideals we continue to pass down.
CONTENTS
Message from Top Management
Business Structure Reforms
Human Capital / Human Capital Strategy
Evolution of the Business Platform / Innovation Management
Sustainability
Corporate Governance
Data Section
Idemitsu Integrated Report 2025 4
Value Creation Story
Origins and History ■ The Current Idemitsu Group ■ Value Creation Process
The Current Idemitsu Group (Data as of March 31, 2025)Petroleum
Crude oil processing capacity
825,000 barrels/day*1, 2
Fuel oil sales volume in Japan
34 million kl/year*3
Number of service stations
Approx. 6,000
Basic chemicals
Ethylene production capacity
million tons/year*2
Paraxylene production capacity
840,000 tons/year*2
Mixed xylene production capacity
690,000 tons/year*2
Styrene monomer production capacity
Functional materials
Lubricant sales volume
million kl /year
Engineering plastic sales volume
200,000 tons/year
OLED material production capacity
26 tons/year
Power and renewable energy
Power generation capacity
1.68 million kW
- of which, renewable energy
820,000 kW
Resources
Crude oil and gas production volume
26,000 BOE*4/day
Coal production volume
5.79 million tons/year
790,000 tons/year*2
*1. As of July 2024. Including the refining capacity of Fuji Oil Company, Ltd. under petroleum product trading contract, the total is 968,000 barrels/day
*2. Capacity excludes that of Nghi Son Refinery
*3. Bonded jet fuel and bonded C fuel oil are counted as export fuel and are not included in domestic fuel oil sales volume
*4. BOE: Barrels of Oil Equivalent
CO2 emissions reduction rate
Ratio of female Directors
Ratio of Outside Directors
Idemitsu Engagement Index
Female recruiting ratio
Female ratio in managerial positions
Male ratio taking childcare leave
19.2% | 20% | 40% | 70% | 38.7% | 4.6% | 92% |
(FY2024 result, vs. 2013) | (As of June 30, 2025) | (As of June 30, 2025) | (FY2024 result) | (FY2024 result) | (FY2024 result) | (FY2024 result) |
Major overseas group companies
(Equity method / Idemitsu direct investment of 50% or more)
9.2 trillion yen
Net sales
Germany
Switzerland
United Arab Emirates
China South Korea
Taiwan
United States of America
3,100 people
Overseas employees
14,000 people
Consolidated number of employees
Consolidated operating income + equity in earnings of non-consoli-dated subsidiaries and affiliates
184.8 billion yen
Mexico
Business Category
Petroleum
Basic Chemicals
Pakistan India Malaysia
Hong Kong Thailand
Vietnam
Philippines Indonesia
Functional Materials (Lubricants)
Functional Materials (Electronic Materials)
Functional Materials (Advanced Materials & Performance Chemicals)
Functional Materials (Pesticides and Functional Feed)Power and Renewable Energy
Resources
Other
Singapore
Australia
Brazil
WEB
Number of group companies 263
About us > Group companies
CONTENTS
Message from Top Management
Business Structure Reforms
Human Capital / Human Capital Strategy
Evolution of the Business Platform / Innovation Management
Sustainability
Corporate Governance
Data Section
Idemitsu Integrated Report 2025 5
Value Creation Story
Origins and History ■ The Current Idemitsu Group ■ Value Creation Process
ROIC: 7%
Cumulative investment in business structure reforms: approximately ¥1trillion
Vision for
2050
Vision for
2030
▶Scope 1 + 2: Achieve CN*1
(Net-zero CO₂ emissions)
▶Scope 3: Aim for carbon neutrality
Non-financial KPIsIdemitsu Engagement Index: ≥80%
Female ratio in managerial positions: ≥10% Education investment per employee:
≥¥100,000 annually
Male ratio taking childcare leave: 100% Female recruiting ratio: ≥50%
ROE: ≥10%
Operating + equity income: ¥270 bn Fossil fuel business profit ratio: ≤50%
Investment in Business Structure Reforms FY2025: ROE of 10% and achieve PBR of 1.0x as soon as possibleEngage in ROIC Management: Enhance capital efficiency and profitability of existing businesses
Laying the groundwork for realizing CN
Investments in Human CapitalEmbodying management philosophy / vision
Expanding DE&I Bringing out the full potential
of each individual
GHG reduction targets▶Scope 1 + 2: CO2 emissions -46% (vs. 2013)
▶Scope 1 + 2 + 3: CI*2 -10% (vs. 2020)
(Target for 2040: CI -50% vs. 2020)
Evolution of the business platformDX strategy / Evolution of governance
*1. CN: Carbon Neutrality
*2. CI: Carbon Intensity
Management Philosophy Truly inspiredThe Origin of Management Ningen-Soncho (Having respect for human beings)
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Disclaimer
Idemitsu Kosan Co. Ltd. published this content on August 29, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on August 29, 2025 at 06:25 UTC.
