Management philosophy
Corporate Profile
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Board of Directors
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Director, Member of the Board (outside and part-time) : Takahiro Ikeda
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Director, Member of the Board (outside and part-time) : Akio Sakumiya
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Director, Member of the Board (outside and part-time) : Yoshitaka Mitsuda
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Director, Member of the Board (outside and part-time) : Ryoko Nagata
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Director, Member of the Board (outside and part-time) : Makiko Akabane
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Audit & Supervisory Board Member (outside and part-time) : Hiroyuki Yamasaki
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Audit & Supervisory Board Member (outside and part-time) : Yoshiro Motoyama
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Audit & Supervisory Board Member (outside and part-time) : Yuko Furumoto
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History
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The History of Flat-Rolled Aluminum Production in Japan
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Domestic Bases and Group Companies
Events / corporate advertising
Audit & Supervisory Board Member (outside and part-time) : Haruhiko Takagi
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- Audit & Supervisory Board Member (outside and part-time) : Haruhiko Takagi
Haruhiko Takagi
Born on January 10, 1959
Professional Background
| April 1982 | Joined K. Hattori & Co., Ltd. (currently Seiko Group Corporation) |
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| June 2004 | General Manager of Accounting Department |
| June 2007 | Director |
| June 2016 | Full-time Corporate Auditor (resigned in June 2024) |
| January 2020 | Outside Audit & Supervisory Board Member of OHARA INC. (resigned in January 2024) |
| June 2024 | Full-time Corporate Auditor of Seiko Instruments Inc. (resigned in June 2025) |
| November 2025 | Full-time Corporate Auditor of Clockwork Holdings Co., Ltd. (current position) |
| June 2026 | Audit & Supervisory Board Member (outside and part-time), UACJ Corporation |
Significant concurrent positions outside the Company
- Full-time Corporate Auditor of Clockwork Holdings Co., Ltd.


