CMC Magnetics (2323) Announces Disposal of Nanya Technology Shares

Name of the security: Nanya Technology Corporation Common Stock Transaction date: 2026/5/18 ~ 2026/5/20 Date of board of directors' approval: Not applicable Other approval date: Approval level: Chairman's approval, May 20, 2026 Transaction volume, price per unit, and total amount: Transaction volume (thousand shares): 1,080 Price per unit (NT$): 295.40 Total transaction amount (NT$): 319,031,787 Profit from disposal: NT$15,263,120 Relationship with the counterparty company: None Cumulative holdings of this security to date (including this transaction): Remaining balance: 3,939,000 shares, Amount: NT$1,023,554,088 Shareholding ratio: 0.11%, Rights restrictions: None Ratio of securities investment (including this transaction) to total assets and equity attributable to owners of the parent in the latest financial statements, and the amount of working capital: Ratio to total assets: 79.42% Ratio to equity attributable to owners of the parent: 114.06% Working capital (NT$ thousand): 8,285,327 Specific purpose of the acquisition or disposal: Investment portfolio Other matters to be specified: Authorized traders were approved on March 31, 2026, to conduct securities transactions on the centralized exchange market during the second quarter of 2026.