Shin Etsu Chemical : Notice Concerning Decisions Relating to Repurchase of Shares and Cancellation of Treasury Shares

May 17, 2024

To Whom It May Concern

4-1, Marunouchi 1-chome,Chiyoda-ku, Tokyo

Shin-Etsu Chemical Co., Ltd.

Yasuhiko Saitoh

Representative Director / President

(Code No. 4063)

Contact:

Toshiyuki Kasahara

Corporate Officer, General Manager

Finance and Accounting Department

TEL: [phone]

Notice Concerning Decisions Relating to Repurchase of Shares

and Cancellation of Treasury Shares

(Repurchase of Shares Based on Provisions in the Company's Articles of Incorporation Relating to Article 165(2) of the Companies Act and Cancellation of Treasury Shares Based on Article 178 of the Companies Act)

Shin-Etsu Chemical Co., Ltd. (the "Company") hereby announces that, at its meeting of the Board of Directors held on May 17, 2024, (i) a resolution was made concerning the repurchase of the Company's shares, based on the provisions of Article 156 of the Companies Act, as applied pursuant to Article 165(3) of the Companies Act, and (ii) a resolution was made to cancel treasury shares, based on the provisions of Article 178 of the Companies Act.

1. Reasons for Share Repurchases

The Company has decided to repurchase its shares in order to improve capital efficiency and enhance shareholders' returns. The Company plans to cancel the shares that it repurchases under this program.

2. Information on Share Repurchases

(1)	Share Type for Purchases:	Common shares of the Company
(2)	Total Number of Shares
	to be Purchased:	22,000,000 shares (maximum)
		(1.1% of the total shares issued and outstanding,
		excluding treasury shares)
(3)	Total Share Purchase Amount:	100 billion Japanese Yen (maximum)
(4)	Purchase Period:	May 20, 2024 to November 29, 2024
(5)	Purchase Method:	Market purchases on the Tokyo Stock Exchange

3. Information on Treasury Share Cancellation

(1)	Share Type for Cancellation:	Common shares of the Company
(2)	Total Number of Shares
	to be Cancelled:	All treasury shares repurchased based on
		Section 2 above
(3)	Scheduled Cancellation Date:	December 6, 2024
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For Reference: Current Status of Treasury Shares (as of April 30, 2024)

Total Number of Shares Issued and
Outstanding (Excluding Treasury Shares):	1,996,081,687 shares
Number of Treasury Shares:	5,610,078 shares

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