Shin Etsu Chemical : Notice Concerning Status of Repurchase of Shares pdf

To Whom It May Concern

December 4, 2025

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 Status of Repurchase of Shares

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

   Shin-Etsu Chemical Co., Ltd. hereby announces that, as to the repurchase of shares, based on the provisions of Article 156 of the Companies Act, as applied pursuant to Article 165(3) of the Companies Act, resolved at the board of directors meeting held on April 25, 2025, the current status of the repurchases (interim status) is as described below.

   1. Share Type Purchased: Common shares of the Company

   2. Total Number of

      Shares Purchased: 0

   3. Total Share Purchase Amount: 0 Japanese Yen

   4. Purchase Period: November 1, 2025 to November 30, 2025 (transaction date)

   5. Purchase Method: Market Purchases on the Tokyo Stock Exchange

For Reference:

1. Contents of Resolution of Board of Directors Meeting Held on April 25, 2025

   1. Share Type for Purchases: Common shares of the Company

   2. Total Number of Shares

      to be Purchased: 200,000,000 shares (maximum)

      (10.2% of the total shares issued and outstanding, excluding treasury shares)

   3. Total Share Purchase Amount: 500 billion Japanese Yen (maximum)

   4. Purchase Period: May 21, 2025 to April 24, 2026

2. Current Status (total number of shares repurchased as of November 30, 2025)

   1. Total Number of Shares Purchased: 87,393,400 shares

   2. Total Share Purchase Amount: 399,999,591,800 Japanese Yen