Skip to content
Governance Register
Sign inFind yourself
Find yourselfSign in
Search How it works For organisations For professionals

Edition

United Kingdom (current)IrelandUnited StatesNew ZealandCanadaAustraliaScotlandNorthern Ireland

Company

Sumitomo Metal Mining CO., LTD.

How am I connected?
More
View network map Report an issue

Official record Companies House · updated 20th September 2026 · Sources

Network

The large node is Sumitomo Metal Mining CO., LTD.. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 28

  1. Hideyuki Okamoto 2024–2025 Director View profile
  2. Yoshiaki Nakazato 2017–2023 Director View profile
  3. Tsutomu Ushijima 2017–2018 Director View profile
  4. Takeshi Kubota 2017–2018 Director View profile
  5. Hitoshi Taimatsu 2017–2020 Director View profile
  6. Hiroshi Asahi 2017–2021 Director View profile
  7. Kazuhisa Nakano 2017–2021 Director View profile
  8. Harumasa Kurokawa 2017–2019 Director View profile
  9. Masamichi Fujimori 1995–2017 Director View profile
  10. Chitsura Arakawa 1995–2017 Director View profile
  11. Tiaji Ueno 1995–2017 Director View profile
  12. Akihiko Shinozaki 1995–2017 Director View profile
  13. Nobufumi Fuchimoto 1995–2017 Director View profile
  14. Akira Fujisaki 1995–2017 Director View profile
  15. Koichi Sudo 1995–2007 Director View profile
  16. Koichi Fukushima 1995–2017 Director View profile
  17. Hiroshi Ishimi 1995–2017 Director View profile
  18. Misao Iwatani 1995–2017 Director View profile
  19. Syunji Hagiwara 1995–2017 Director View profile
  20. Setsuya Kuroda 1995–2017 Director View profile
  21. Tomoyuki Inami 1995–2017 Director View profile
  22. Mutsuo Tomono 1995–2017 Director View profile
  23. Yukuaki Mitarai 1995–2017 Director View profile
  24. Toshiki Takagi 1995–2017 Director View profile
  25. Yutaka Ikemura 1995–2017 Director View profile
  26. Moriki Aoyagi 1995–2017 Director View profile
  27. Hiroharu Kitani 1995–2017 Director View profile
  28. Hideo Umeda 1995–2017 Director View profile

Directors and secretaries as filed at Companies House.

Do you help lead this organisation? Set up its network · How it works

About

Incorporated
01/04/1995
Board analysis for researchers

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

7 directors on the board

5.3y median 5.8y
average tenure
9y
longest tenure

Directors past 6 years

First-time vs portfolio directors

First-time (6)

Portfolio (1)

0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Other services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • No director brings board experience from anywhere else
  • Narrow spread of sectors across the board

Where to look Suggested search: a director with board experience elsewhere; directors from a wider range of sectors.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
FC018829
Status
Active
Type
Other company type
Edition
Register edition compiled 20th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data