UMC(UMC) - 2025 Q2 - Quarterly Report

Filing Information This section provides an overview of the administrative details for the Form 6-K filing by United Microelectronics Corporation General Filing Details This section identifies the Form 6-K filing by United Microelectronics Corporation on June 30, 2025 - The filing is a Form 6-K, a report of a foreign issuer, submitted by United Microelectronics Corporation[1] - The report was filed on June 30, 2025[1] Signatures This section confirms the official authorization and signing of the Form 6-K report by the registrant's CFO - The report was signed on behalf of United Microelectronics Corporation by Chitung Liu, CFO[5] - The signature date is June 30, 2025[5] Exhibit Index This section provides a list of exhibits accompanying the Form 6-K filing - Exhibit 99.1 is described as '6K on 06/30/2025'[7]