Tenox Corporation announced that at its board meeting held on March 15, 2024, announced that the appointments to Executive Officer and Manager personnel, effective April 1, 2024. Executive Officer personnel: Executive Officers (effective April 1, 2024): Sunao Wakao: New position is Director, Executive Officer Assistant to the President and Sales General Manager. Current Position is Director, Executive Officer and Sales General Manager.

Takashi Horikiri: New position is Director, Executive Officer Management General Manager and Planning Manager . Current Position is Director, Executive Officer and Corporate strategy General Manager. Takuya Sakaguchi: New position is Director, Executive Officer Appointive Officer to the President (Assistant to the Management General Manager and Hiroshimagumi Management Support Office Head) .

Current Position is Director, Executive Officer and Management General Manager and Accounting Manager and Planning Information Promotion Manager. Katsuhisa Kodama: New position is Executive Officer Sales Deputy General Manager. Current Position is Executive Officer and Corporate strategy Deputy General Manager and Corporate Planning Manager.

Naoya Matayoshi: New position is Executive Officer Construction General Manager. Current Position is Executive Officer and Construction General Manager and Operation Manager. Yoji Hirayama: New position is Executive Officer Technology General Manager.

Current Position is Executive Officer and Technology General Manager and Technology Manager. Toru Kurokawa: New position is Executive Officer Construction Deputy General Manager and Construction First Division Manager. Current Position is Executive Officer and Construction Technology Division Construction First Division Manager.

Atsushi Taniyama: New position is Executive Officer Management Deputy General Manager and Accounting Manager. Current Position is Management Headquarters General Affairs Manager. Mr. Takashi Horikiri is scheduled to be elected as Managing Executive Officer at the Company's 54th Annual General Meeting of Shareholders scheduled to be held in late June 2024 and at the Board of Directors meeting to be held after the conclusion of the said meeting.

Retiring Executive Officers (effective March 31, 2024): Kazuhiko Sakoda currently Executive Officer and Special Appointive Officer to the President. To change the management structure following the resignation due to the expiration of term of office. (Former) Name: Masayuki Sato Former position: President and Representative Director.

The new and the former President and Representative Directors' names and positions (New) Name: Sunao Wakao, New position: President and Representative Director. Brief personal history of the new President and Representative Director. Date of birth: April 11, 1959.

Oct. 2021 Joined the Company, Executive Officer and Sales Deputy General Manager. Mar.

2022 Executive Officer, Sales Deputy General Manager and Tohoku Sales Office Manager. Apr. 2022 Executive Officer, Sales General Manager, Civil Engineering Sales Manager and Chushikoku Sales Office Manager.

June 2022 Director, Executive Officer, Sales General Manager, Civil Engineering Sales Manager and Chushikoku Sales Office Manager. Apr. 2023 Director, Executive Officer and Sales General Manager (current position).