[San Yang Industry] Announcement on behalf of its subsidiary winning the bid for "Kaohsiung Metropolitan Area Mass Rapid Transit System Xiaogang-Linyuan Line RLC02 Civil Engineering and Facility Electromechanical Project"

1. Date of occurrence of the event: 2026/05/07 2. Company name: Shang Ting Construction Co., Ltd. 3. Relationship with the company (please enter 'parent company' or 'subsidiary'): Subsidiary 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: Project Name: Kaohsiung Metropolitan Area Mass Rapid Transit System Xiaogang-Linyuan Line RLC02 Civil Engineering and Facility Electromechanical Project Client: Kaohsiung City Government Mass Rapid Transit Bureau Development Amount: NT$26,394,095,940. The company's share is 30%. Joint Contractor: Gamuda Engineering Sdn Bhd (Malaysian company) 6. Measures taken: None 7. Other matters that should be specified (if the subject of the event or resolution is a public offering company or higher, this material information also complies with Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act regarding matters that have a significant impact on shareholders' equity or securities prices): None