Sakai Chemical Industry Co., Ltd.TSE: 4078

Notice Regarding Changes in Directors, Audit & Supervisory Board Member and Executive Officers

· Issued by Sakai Chemical Industry Co., Ltd.


News Release



March 23, 2026

For Immediate Release

Company name: Sakai Chemical Industry Co., Ltd. Representative: President and Representative Director,

Toshiyuki Yagura (TSE Prime Market, Stock code: 4078)

Inquiries: General Manager of Human Resources

& General Affairs, Kouichi Yumioka

Telephone: +81-072-223-4111

Notice Regarding Changes in Directors, Audit & Supervisory Board Member and Executive Officers

Sakai Chemical Industry Co., Ltd. (the "Company") announced the resolution made at a meeting of its board of directors held on March 23, 2026 concerning the following changes in Directors, Audit & Supervisory Board Member and Executive Officers.

These changes are subject to final approval at the Ordinary General Meeting of Shareholders scheduled on June 25, 2026 and the meeting of its board of directors to be held thereafter.

1. Changes of Director, Audit & Supervisory Board Member(effective June 25,2026)

(1)Newly Appointed

Name

New Position

Current Position

Yasuhiro Okamoto

Managing Director & Executive Officer

Director & Executive Officer

Shinji Ogama

Director & Executive Officer

Director

Megumi Machida

Director

-

Hiroyuki Hattori

Audit & Supervisory Board Member

Director & Executive Officer

(2)Retiring

Name

New Position

Current Position

Mitsunori Matsuda

-

Director

Teruya Takamatsu

-

Audit & Supervisory Board Member

2.

(1)Newly Appointed(effective May 1,2026)

Name

New Position

Current Position

Tsutomu Yamamoto

Executive Officer

-

(2)Newly Appointed(effective June 25,2026)

Name

New Position

Current Position

Hiromasa Kajimoto

Executive Officer

-

(3)Retiring(effective June 25,2026)

Name

New Position

Current Position

Keiichi Tabata

-

Executive Officer

Mr. Keiichi Tabata is expected to be seconded to Katayama Seiyakusyo Co., Ltd.

As a result of the above, the management structure of our company as of June 25, 2026 will be as follows.

* Outside/Independent Officers

【Director】 【Audit & Supervisory Board Member】

President Representative Director

Toshiyuki Yagura

Managing Director & Executive Officer

Yasuhiro Okamoto

Director & Executive Officer

Koichiro Magara

Director & Executive Officer

Shinji Ogama

Director *

Yoshikazu Ito

Director *

Hisao Miyagawa

Director *

Yoshiko Hamazaki

Director *

Megumi Machida

Audit & Supervisory Board Member*

Hiroshi Ushio

Audit & Supervisory Board Member

Hiroyuki Hattori

Audit & Supervisory Board Member*

Tomonori Yasuda

【Executive Officer】

Executive Officer

Hiroshi Tokunaga

Executive Officer

Wataru Ibaraki

Executive Officer

Akira Morioka

Executive Officer

Hiroshi Nakao

Executive Officer

Tsutomu Yamamoto

Executive Officer

Hiromasa Kajimoto

The Company plans to designate four Outside Directors and two Outside Audit & Supervisory Board Members listed above as Independent Officers specified by the Tokyo Stock Exchange and register them with the stock exchange.

Note : This document has been translated from the Japanese original for reference purposes only. In the event of any discrepancy between this translated document and the Japanese original, the original shall prevail.

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