- Employees
- 10001+
- Founded
- 1911
- Listing
- For Profit · TYO:5019
- Headquarters
- Tokyo, Tokyo, Japan
Company data last updated Jul 30, 2025.
About Idemitsu Kosan
Idemitsu Kosan is a petroleum company that operates oil platforms, refineries and produces petroleum, oils, and petrochemical products.
Who to contact at Idemitsu Kosan
Email Format
Leadership & Decision Makers
Contact details of 4 Idemitsu Kosan decision makers
Tomonori Okada
Takashi Matsushita
Susumu Nibuya
Shunichi Kito
Team & Specialists
Contact details of 2 Idemitsu Kosan team members
Masanori Enomoto
Industrial Ilm
General Emails
General company emails, e.g. customer support lines
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Records are compiled from publicly available sources and checked as described in our methodology. Company data last updated Jul 30, 2025.
Frequently Asked Questions about Idemitsu Kosan
What does Idemitsu Kosan do?
Idemitsu Kosan is a petroleum company that operates oil platforms, refineries and produces petroleum, oils, and petrochemical products.
Where is Idemitsu Kosan headquartered?
Idemitsu Kosan is headquartered in Tokyo, Tokyo, Japan.
When was Idemitsu Kosan founded?
Idemitsu Kosan was founded in 1911.
How many employees does Idemitsu Kosan have?
Idemitsu Kosan has approximately 10001+ employees.
What industry is Idemitsu Kosan in?
Idemitsu Kosan operates in the Finance & Banking industry.
What is the email format for Idemitsu Kosan?
The most common email format at Idemitsu Kosan is {first_name}.{last_name}@idemitsu.com. For example: firstname.lastname@idemitsu.com.
How do I contact Idemitsu Kosan?
You can contact Idemitsu Kosan via email at info@idemitsu.com or admin@idemitsu.com, headquartered in Tokyo, Tokyo, Japan.