Disclosure of Changes in Management Rights Acquisition Agreement: Buyer Change and Payment Extension

Filed a mass stock ownership report for the purpose of influencing management rights
Stock and management rights acquisition agreement (signed on 2025.07.17) amended 11 times, final payment date extended to 2026.05.20
Original buyer (Ribbon Material Holdings Co., Ltd.) changed to Storage 1 Union and 3 others
Two separate stock acquisition agreements also changed buyers (BH1 Union, The Secret Investment Union 1) and extended payment to 2026.05.22
Financial data of related entities included, such as DimoA Co., Ltd. with assets of 84.8 billion KRW and liabilities of 16.2 billion KRW