The Company announced the release, "Notice Concerning the Establishment of a Wholly Owned Subsidiary and a Company Split (Simplified Absorption-type Split) Following the Transfer of the Domestic Sales Business for Cement and Solidification Agents and Shares in Certain Consolidated Subsidiaries as well as the Change in a Subsidiary due to the Transfer of Shares in the Aforementioned Wholly Owned Subsidiary," on Mar. 25, 2026.

The documents relating to this matter are as follows.

Notice Concerning the Establishment of a Wholly Owned Subsidiary and a Company Split (Simplified Absorption-type Split) Following the Transfer of the Domestic Sales Business for Cement and Solidification Agents and Shares in Certain Consolidated Subsidiaries as well as the Change in a Subsidiary due to the Transfer of Shares in the Aforementioned Wholly Owned Subsidiary

Notice Concerning the Establishment of a Wholly Owned Subsidiary and a Company Split (Simplified Absorption-type Split) Following the Transfer of the Domestic Sales Business for Cement and Solidification Agents and Shares in Certain Consolidated Subsidiaries as well as the Change in a Subsidiary due to the Transfer of Shares in the Aforementioned Wholly Owned Subsidiary (Presentation)

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