Nitto Denko : Notice of resolution at the 160th Ordinary General Meeting of Shareholders

This document is a translation of the Japanese language original for information purposes and is prepared as a guide for non-Japanese shareholders. In the event of a discrepancy, the Japanese original version shall prevail.

June 20, 2025

NOTICE OF RESOLUTIONS AT THE 160TH ORDINARY GENERAL MEETING OF SHAREHOLDERS

It is our pleasure to inform you that the following items were reported and resolved at the 160th Ordinary General Meeting of Shareholders of Nitto Denko Corporation (the "Company") held today.

Items reported: 1. Business Report, Consolidated and Non-Consolidated Financial Statements for the 160th term (from April 1, 2024 to March 31, 2025) 2. Auditing results of Consolidated Financial Statements by Accounting Auditors and the Board of Corporate Auditors Items resolved: Item 1: Approval of the proposed dividends from surplus

This item was approved as originally proposed (the year-end dividend is 28 yen per share).

Item 2: Election of ten Directors

As originally proposed, the ten candidates, namely Hideo Takasaki, Yosuke Miki, Yasuhiro Iseyama, Yasuhito Ohwaki, Tatsuya Akagi, Yoichiro Furuse, Wong Lai Yong, Michitaka Sawada, Yasuhiro Yamada and Mariko Eto were elected as Directors and they assumed their offices.Wong Lai Yong, Michitaka Sawada, Yasuhiro Yamada and Mariko Eto are Outside Directors stipulated in Item 15, Article 2 of the Companies Act of Japan.