About Us

Message from the CEO


Hidenari Yamatoya

President and CEO
Hidenari Yamatoya

Since its establishment and with the support of the Tokai-Village, Ibaraki, Mitsubishi Nuclear Fuel (MNF) has endeavored to ensure the supply of stable nuclear energy to the people of Japan.

We have done this by staying true to our mission statement, as stated, “Through our participation in the nuclear fuel industry we provide a beneficial contribution to people, society and the global environment, while always recognizing that safety is our utmost priority".

Accomplishment of our mission will support the transition to "carbon neutrality" which in recent years has become a notable issue for the world.

With this increased focus, the role of nuclear fuel that is supplied by MNF has become even more important.

In order to meet society’s expectations, MNF will continue to supply reliable and high-performance nuclear fuel.

Our efforts will ensure strict compliance with new regulatory standards that are intended to ensure the highest safety achievement.

We welcome the challenge of further improving and developing new innovative technologies from a global perspective, all while leveraging our proven capabilities from the last 50 years.

Corporate Profile

Corporate Name Mitsubishi Nuclear Fuel (MNF)
Business Description
  • Development, design, manufacturing, sales and transportation of PWR fuel.
  • Sales and transportation of uranium fuel for BWR (manufactured by Framatome)
  • Design and development, manufacturing and sales of related products
  • Services related to Nuclear fuel
Capital Stock 12 Billion yen
Shareholders Mitsubishi Heavy Industries, Ltd.
Establishment of corporation December, 1971

Corporate History

1954 Uranium ore sorting test at Mitsubishi Metal (MMC) Nuclear Fuel Laboratory in Ohmiya
1959 R&D of nuclear fuel at Mitsubishi Atomic Power Industry (MAPI) Research Institute in Ohmiya
1960 Nuclear fuel conversion / fabrication development and testing at MMC / MAPI Research Institute in Ohmiya
1961 Acquisition of land for a nuclear fuel plant in Tokai-mura
1971, Dec. Foundation of Mitsubishi Nuclear Fuel Co., Ltd. (MNF)
1972, Jan. Acquisition of a license for nuclear fuel fabrication (MNF Tokai Plant)
1996, Dec. Acquisition of ISO 9002 certification
2001, Oct. Gained TPM Excellence Award
2009, Apr. Establishment of new structure of shareholders, and enlargement of activities to include development, design, manufacturing and sales of nuclear fuel
  • TPM : Total Productive Maintenance
    Contributing to the creation of a beautiful environment and a healthy society, guiding enterprises along the path to efficient manufacturing, with a constant focus on the creation of true value.

Corporate Principles and Business Policy

MNF Corporate Principles

Through our participation in the nuclear fuel industry we provide a beneficial contribution to people, society and the global environment, while always recognizing that safety is our utmost priority.

MNF Business Policy

To become an integrated nuclear fuel fabricator which is recognized throughout the world, we shall strive for the following objectives:
  • Contribute to the stable supply of energy through the supply of high-quality, highly-efficient nuclear fuel.
  • Contribute to the growth of nuclear power through our efforts on a global scale.
  • Contribute to the nuclear fuel cycle through our participation in a wide array of activities from Uranium supply to MOX fuel fabrication.

Affiliate Companies

    MNF SERVICES Company, Limited(MNFS)
    1002-8, Mukoyama, Naka-shi, Ibaraki, 311-0102

Location list

Head Office/Tokai Plant

Address: 622-1, Funaishikawa, Tokai-mura, Naka-gun, Ibaraki, 319-1197
Phone: +81-29-282-2011
FAX: +81-29-287-8885

Okegawa Plant

Address: 1230 Kamihideya, Okegawa-shi, Saitama, 363-0026

Hokkaido Office

Address: 4-1 Kitanijounishi, Chuo-ku, Sapporo, Hokkaido, 060-0002

Kyushu Office

Address: 2-2-1 Hakata-ekimae, Hakata-ku, Fukuoka-shi, Fukuoka 812-0011

Tokyo Office

Address: 1-16-4 Toranomon, Minato-ku, Tokyo 105-0001