Advantech Co., Ltd.'s Board of Director has approved the construction of the Advantech's Huaya Manufacturing Center project. Type of contract: Engaging others to build on own land. Date of occurrence of the event: October 30, 2023.

Major content of the contract (including total contract amount, anticipated monetary amount of participation in the investment, and start and end dates of the contract), restrictive covenants, and other important terms and conditions: The total amount is approximately TWD 3,400 millions. Date of the board of directors resolution: October 23, 2023. Date of ratification by supervisors or approval by the audit committee: October 23, 2023.