The Board of Directors of Patec Precision Industry Co., Ltd. approved the appointment of accounting Officer, and
designated and non-designated representatives. Name, title, and resume of the previous position holder: Acting spokesperson: Sean Hsu/Patec CFO. Accounting officer: Sean Hsu/Patec CFO. Name, title, and resume of the new position holder: Acting spokesperson: Eliza Chien/General manager special assistant Masterlink security corporation under writing department associate Vice president Accounting officer: Evelyn Wang/Patec Accounting manager Designated and non-designated representatives: Eliza Chien/General manager special assistant Masterlink security corporation under writing department associate Vice president. Reason for the change: Position adjustment, approved by the BOD on March 23, 2023. Effective date: April 1, 2023.