To announce the Company's information.

Subject: Update on certain sections of the 2024 Consolidated Business Report of Affiliates

Date of events:2025/06/13

Contents:

1.Date of occurrence of the event: 2025/06/13

2.Company name: Acer Inc.

3.Relationship with the Company (please enter "the company itself" or "subsidiaries"):the company itself

4.Reciprocal shareholding percentage: Not applicable

5.Cause of occurrence: The Company has identified an omission in certain sections of the originally filed 2024 Consolidated Business Report for Related Parties. The missing information is hereby supplemented.

6.Information items/ statements to be corrected:

Item 3: A company assumed to be controlled, subordinated or there would be same shareholders with the parent company.

Item 4:The business and operating scope of the Company's affiliates.

7.Amounts/ contents/ number of page to be corrected: Not included in the previous version.

8.Amounts/ contents/ number of page after correction:

"3. A company assumed to be controlled, subordinated or there would be same shareholders with the parent company: None.

4. The business and operating scope of the Company's affiliates:

Acer is evolving with the industry and changing lifestyles by continuing to push for innovation in existing businesses, while expanding to new territories. In the PC and displays business, Acer is committed to strengthening the foundations with technological innovations and designing unique product lines for the specific needs of gamers, creators, education, usage in harsh environments, and more. In the gaming market, Acer has expanded the ecosystem it built to include 5G connectivity, social media platform and accessories. For creators, Acer has launched a new stereoscopic 3D experience empowered by cutting-edge optical, display and sensory technologies that bring the virtual world to a more physical dimension.

At the same time, Acer's strategy is to explore new opportunities, expand into adjacent territories, and cultivate multiple business engines. These include smart solutions for medical, public health systems, air monitoring, cities, water quality/conservation, and many more being developed by Acer."

9.Countermeasures: File the corrected version with the Market Observation Post System (MOPS)

10.Any other matters that need to be specified: None