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Contact Us

For your better understanding of our services and functions, please contact us through the following windows.

If you require assistance in finding information on our website, please refer to the sitemap.

Site Map

Our materials and presentations are issued only in a digital format. Please refer to the content at the links below.

Contact Us

* We care about your questions and concerns, and are happy to provide you as much information as possible.
Kindly accept some instances, however, where we will not be able to respond on a timely manner or we fail to provide you with satisfactory answers.
* Inquiries reaching us on Saturdays, Sundays and holidays (including the Year end and New Year holidays) will be responded on or after the first business days.


Inquiries to Overseas Branches or Offices

If you want to contact one of our overseas branches or offices directly, please use our Worldwide Network page.


General Inquiries

For questions and opinions to individual business units about products or services.


Inquiries about Recruitment and Inquiries from Students

Inquiries about recruitment and internships


Inquiries about Sustainability

Please contact us via the inquiry form if you have any questions or opinions about our sustainability.


Inquiries on administration and procedures regarding shares

General inquiries from retail investors on administration and procedures regarding shares.


Inquiries to Investor Relations

Inquiries about information for investors and financial results.
For FAQs, please click on the URL below.

https://www.mitsui.com/jp/en/ir/support/index.html

Links from Other Websites

If you want to set up a link to the Mitsui & Co., Ltd. website, please contact us using the Links from Other Websites form.