To announce the Company's information.

Provided by: ACER INCORPORATED

No:1

Subject: Acer's Board has approved 2025 Q1 consolidated results

Date of events:2025/05/08

Contents:

1.Date of submission to the board of directors or approval by the board of directors:2025/05/08

2.Date of approval by the audit committee:2025/05/08

3.Start and end dates of financial reports or annual self-assessed financial information of the reporting period (XXXX/XX/XX~XXXX/XX/XX):2025/01/01~2025/03/31

4.Operating revenue accumulated from 1/1 to end of the period (thousand NTD):61,337,993

5.Gross profit (loss) from operations accumulated from 1/1 to end of the period (thousand NTD):6,477,773

6.Net operating income (loss) accumulated from 1/1 to end of the period (thousand NTD):1,038,745

7.Profit (loss) before tax accumulated from 1/1 to end of the period (thousand NTD):958,078

8.Profit (loss) accumulated from 1/1 to end of the period (thousand NTD):704,116

9.Profit (loss) during the period attributable to owners of parent accumulated from 1/1 to end of the period (thousand NTD):515,165

10.Basic earnings (loss) per share accumulated from 1/1 to end of the period (NTD):0.17

11.Total assets end of the period (thousand NTD):225,226,592

12.Total liabilities end of the period (thousand NTD):144,731,688

13.Equity attributable to owners of parent end of the period (thousand NTD):73,155,249

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

No:2

Subject: On behalf of subsidiary Chao-Chi to announce the merger of Taiwan Hsing Lu Co., Ltd.

Date of events:2025/05/08

Contents:

1.Type of merger and acquisition (e.g., merger, spin-off, acquisition, or share transfer):

Merger

2.Date of occurrence of the event:2025/05/08

3.Names of companies participating in the merger and acquisition (e.g., name of the other company participating in the merger or consolidation, newly established company in a spin-off, acquired company, or company whose shares are taken assignment of):

Taiwan Hsing Lu Co., Ltd. ("THL") will be merged into Chao-Chi Property Management Consulting Co., Ltd. ("Chao-Chi").

4.Counterparty (e.g., name of the other company participating in the merger or consolidation, company taking assignment of the spin-off, or counterparty to the acquisition or assignment of shares):

Company taking assignment of the merger: Chao-Chi

5.Whether the counterparty of the current transaction is a related party: Yes.

6.Relationship between the counterparty and the Company (investee company in which the Company has re-invested and has shareholding of XX%), and explanation of the reasons for the decision to acquire, or take assignment of the shares of, an affiliated enterprise or related person, and whether it will affect shareholders' equity:

THL (the merged subsidiary) is a wholly owned subsidiary of Chao-Chi (the merging company). This merger is an intra-group reorganization under common control within Chao-Chi, and therefore does not affect the shareholders' rights or interests of either Chao-Chi or the Company.

7.Purpose and conditions of the merger and acquisition, including the reason, consideration conditions and payment schedule of the merger and acquisition: Operation optimization.

8.Anticipated benefits of the merger and acquisition: Improve efficiency.

9.Effect of the merger and acquisition on net worth per share and earnings per share:

This merger is an intra-group reorganization within CHAO-CHI group, so that the net worth \ and earnings per share of CHAO-CHI and the Company will not be affected.

10.Type of merger consideration and source of funds: Not applicable

11.Share exchange ratio and basis of its calculation:

(1)Share exchange ratio: not applicable.

(2)Basis of calculation: book value of Taiwan Hsing Lu Co., Ltd..

12.Whether the CPA, lawyer or securities underwriter issued an unreasonable opinion regarding the transaction: No

13.Name of the CPA, law or securities firm: Not applicable

14.Name of the CPA or lawyer: Not applicable

15.Practice certificate number of the CPA: Not applicable

16.Independent expert's report on the reasonableness of the share exchange ratio and the cash or other assets paid to the shareholders (1.The method, principles, or calculations adopted for determination of the public tender offer price, and comparison with the market-value method, cost method, and discounted cash flow method commonly used internationally; 2.comparison of the financial condition, profit status, and price-to-earnings ratio of the subject company with those of TWSE or GTSM listed companies in the same industry; 3.if a price appraisal report of an appraisal organization is taken into account in the public tender offer price, the opinion shall specify the content and conclusion of the appraisal report; and 4.if assets or shares of the subject company, or of the surviving company in the case of a merger, are listed as collateral in the tender offeror's financing repayment plan, the opinion shall disclose the collateralization terms, and assessment of the impact on the financial and operational soundness, of the subject company or of the surviving company of the merger.): Not applicable

17.Scheduled timetable for consummation: Tentatively scheduled for December 31, 2025.

18.Matters related to assumption by the existing company or new company of rights and obligations of the extinguished (or spun-off) company:

Chao-Chi will be the surviving company, and THL will be the dissolved company. All assets, liabilities, and all rights and obligations of THL that remain valid as of the merger base date shall be wholly assumed by Chao-Chi in accordance with the law.

19.Basic information of companies participating in the merger: Not applicable

20.Matters related to the spin-off (including estimated value of the business and assets planned to be assigned to the existing company or new company; the total number and the types and volumes of the shares to be acquired by the split company or its shareholders; matters related to the reduction, if any, in capital of the split company) (note: not applicable other than where there is announcement of a spin-off): Not applicable

21.Conditions and restrictions on future transfers of shares resulting from the merger and acquisition: Not applicable

22.Post-merger and acquisition plan:

(1) Willingness to continue operating the business of the company, and the contents of plans to that effect

(2) Dissolution; delisting from an exchange (or OTC market); material changes in organization, capital, business plan, financial operations and production; accommodation or utilization of staff and assets critical to the Company; or any other matter of material significance that would affect the company's shareholder equity: None

23.Other important stipulations: None

24.Other important matters concerning the merger and acquisition: None

25.Whether the directors have any objection to the present transaction: No

26.Information regarding directors with personal interest (name of natural person director or name of legal person director and its representative, material interest of the director or the legal person represented by the director (including but not limited to form of actual or expected investment in another company in the merger, shareholding, transaction price, participation in the subject company's business or otherwise, and other terms of investment), reason for recusal or otherwise, details of recusal, and reason for a resolution for or against the merger proposal): None

27.Whether the transaction involved in change of business model: None

28.Details on change of business model: None

29.Details on transactions with the counterparty for the past year and the expected coming year: None

30.Source of funds: Not applicable

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

No:3

Subject: ACER is invited to participate in the CGS-CIMB's 4th Tech and EV Virtual Conference 2025 by Capital Securities

Date of events:2025/05/15

Contents:

1.Date of institutional investor conference:2025/05/15

2.Time of institutional investor conference:16:00

3.Location of institutional investor conference: Online virtual conference

4.Outline of institutional investor conference:

Acer Inc. Performance Briefing for the First Quarter of 2025.

The presentation material for investor conference is available at MOPS.

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

No:4

Subject: ACER is invited to participate in the Goldman Sachs TechNet Taiwan Corp Day 2025 by Goldman Sachs

Date of events:2025/05/20

Contents:

1.Date of institutional investor conference:2025/05/20

2.Time of institutional investor conference:14:00

3.Location of institutional investor conference: W Hotel

4.Outline of institutional investor conference:

Acer Inc. Performance Briefing for the First Quarter of 2025.

The presentation material for investor conference is available at MOPS.

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

No:5

Subject: ACER is invited to participate in the Citi Taiwan Tech Conference by Citi Securities

Date of events:2025/05/23

Contents:

1.Date of institutional investor conference:2025/05/23

2.Time of institutional investor conference:09:00

3.Location of institutional investor conference: W Hotel

4.Outline of institutional investor conference:

Acer Inc. Performance Briefing for the First Quarter of 2025.

The presentation material for investor conference is available at MOPS.

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

No:6

ACER INCORPORATED

ACER INC. AND SUBSIDIARIES

Consolidated Financial Statements of 2025 Q1

The above documents have been uploaded on MOPS, the regulatory system of Taiwan Stock Exchange, and can be viewed at or downloaded from Acer Inc. website at https://www.acer-group.com/ag/en/TW/content/quarterly-reports

No:7

ACER INCORPORATED

Notice of 2025 General Shareholders' Meeting ("GSM"), Handbook, and 2024 Annual Report

Copies of the above documents have been uploaded on MOPS, the regulatory system of Taiwan Stock Exchange, and can be viewed at or downloaded from Acer Inc. website at https://www.acer-group.com/ag/en/TW/content/shareholders-service;  and  https://www.acer-group.com/ag/en/TW/content/annual-reports

The Company has posted to shareholders who own at least 1000-share the Notice of 2025 GSM, together with the Proxy Form.