Kao : Confirmation Letter 2025 For the year ended December 31, 2025

Confirmation Letter

("Kakuninsho")

(The 120thFiscal Year)

From January 1, 2025 to December 31, 2025

Kao Corporation

This is an English translation of the original Confirmation Letter filed with the Director-General of the Kanto Local Finance Bureau via Electronic Disclosure for Investors' Network ("EDINET"), pursuant to the Financial Instruments and Exchange Act of Japan, for reference purpose only. In the event of any discrepancy between this translated document and the Japanese original, the original shall prevail.

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Filed Document Confirmation Letter (Kakuninsho)

Applicable Law Article 24-4-2, Paragraph 1 of the Financial Instruments and Exchange Act

Filed to Director-General of the Kanto Local Finance Bureau

Filing Date March 25, 2026

Company Name Kao Kabushiki Kaisha

Company Name in English Kao Corporation

Name and Title of Representative Yoshihiro Hasebe, Representative Director, President and Chief Executive

Officer

Name and Title of Chief Financial Officer Masakazu Negoro, Representative Director, Senior Managing Executive

Officer (Responsible for Management Finance Unit)

Address of Head Office 14-10, Nihonbashi Kayabacho 1-chome, Chuo-ku, Tokyo

Place Where the Filed Document is Available for Public Inspection

Tokyo Stock Exchange, Inc.

(2-1 Nihonbashi Kabutocho, Chuo-ku, Tokyo)

1. Matters Related to the Appropriateness of the Statements in the Annual Securities Report

   Yoshihiro Hasebe, Representative Director, President and Chief Executive Officer, and Masakazu Negoro, Representative Director, Senior Managing Executive Officer (Responsible for Management Finance Unit), have confirmed that the statements contained in the Annual Securities Report for the 120th fiscal year (from January 1, 2025 to December 31, 2025) are appropriately stated in accordance with the Financial Instruments and Exchange Act and related laws and regulations.

2. Special Notes

Not applicable.