TSMC Arizona Corporation Director Elections

This Form 6-K filing reports on the resolutions of TSMC Arizona Corporation, a subsidiary of Taiwan Semiconductor Manufacturing Company Limited (TSMC). On December 19, 2025, TSMC Arizona Corporation elected Ray Chuang, Rose Castanares, Shu-Hua (Sylvia) Fang, and Jen-Chau (Wendell) Huang as directors. These elections were conducted by written consent in lieu of an annual shareholder meeting. The filing also confirms that the board of directors for TSMC Arizona Corporation remains unchanged. This report is filed by TSMC as a foreign private issuer pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934, with its principal executive offices located in Hsinchu, Taiwan. TSMC indicates it files annual reports under Form 20-F.