【Photronics】Announcement of the Board of Directors' resolution on matters related to the 2026 Annual Shareholders' Meeting (additional agenda items added)

1. Date of Board of Directors' resolution: May 6, 2026 2. Date of shareholders' meeting: June 18, 2026 3. Location of shareholders' meeting: 2nd floor meeting room, Taiwan Semiconductor Industry Association (2F, No. 2, Zhanye 1st Rd., East Dist., Hsinchu City) 4. Method of shareholders' meeting (physical/video-assisted/video): Physical shareholders' meeting 5. Agenda Item 1: Reporting matters (1): The Company's 2025 Business Report. (2): The Company's 2025 Audit Committee's review report on financial statements. (3): Report on the Company's and its subsidiaries' 2025 endorsement and guarantee procedures. (4): Report on the Company's 2025 private placement of securities. 6. Agenda Item 2: Approval matters (1): The Company's 2025 Business Report and Financial Statements. (2): The Company's 2025 capital deficit replenishment plan. (3): The Company's additional use of funds for 2025 private placement of securities. 7. Agenda Item 3: Discussion matters (1): The Company's 2025 "Evaluation Opinion Letter on the Necessity and Rationality of Engaging Underwriters for Private Placement of Securities." (2): The Company's proposed private placement of common shares. 8. Agenda Item 4: Election matters (1): Complete re-election of directors. 9. Agenda Item 5: Other matters (1): Proposal to lift non-compete restrictions for the Company's new directors and their representatives. 10. Extraordinary motions: None. 11. Book closure start date: April 20, 2026 12. Book closure end date: June 18, 2026 13. Other matters to be specified: Added: Discussion items No. 1 and No. 2, and other item No. 1.