Subject: Supplementary Announcement to Acer's announcement dated Dec. 26, 2023: The Company's board approved the investment of grid energy storage.

Date of events: 2024/09/27

Contents: 

1.Name and nature of the underlying assets (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield, etc.):

Participating capital increase in cash of the common shares of the companies for energy storage are as follows: Jaoming Electric Co., Ltd., Haosheng Co., Ltd., Haoyu Electric Co., Ltd. and Haosheng No.3 Electric Co.,Ltd.

2.Date of occurrence of the event:2023/12/26~2024/09/27

3.Amount, unit price, and total monetary amount of the transaction:

Participating capital increase in cash at the par value of NT$10 per share: The accumulated amount for Jaoming Electric Co.,Ltd. is NTD 461,580,000, the accumulated amount for Haosheng Co., Ltd. is NTD 585,765,600, the accumulated amount for Haoyu Electric Co., Ltd. is NTD 425,000,000 and the accumulated amount for Haosheng No.3 Electric Co., Ltd. is NTD 403,572,400.

4.Trading counterparty and its relationship with the Company (if the trading counterparty is a natural person and furthermore is not a related party of the Company, the name of the trading counterparty is not required to be disclosed):

The counterparty is not a related party of the Company.

5.Where the trading counterparty is a related party, announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, its relationship with the Company and the trading counterparty, and the previous date and monetary amount of transfer:

Previous transfer information: N/A

6.Where an owner of the underlying assets within the past five years has been a related party of the Company, the announcement shall also include the date and price of acquisition and disposal by the related party, and its relationship with the Company at the time of the transaction:

N/A

7.Matters related to the current disposal of creditors' rights (including types of collaterals of the disposed creditor's rights; if creditor's rights over a related party, announcement shall be made of the name of the related party and the book amount of the creditor's rights, currently being

disposed of, over such related party):

N/A

8.Profit or loss from the disposal (not applicable in cases of acquisition of securities) (those with deferral should provide a table explaining recognition):

N/A

9.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important terms and conditions:

The schedule, terms and conditions of above Participating capital increase in cash will be executed in accordance with relevant resolutions made by the companies subject to relevant laws and regulations.

10.The manner of deciding on this transaction (such as invitation to tender, price comparison, or price negotiation), the reference basis for the decision on price, and the decision-making unit:

(1) The manner and unit of deciding on this transaction: The resolution and    authorization   made by the Company's Investment Committee, Audit Committee and Board meeting.

(2) The reference basis for the decision on price: The Companies executed the  capital increase in cash at par value of shares.

11.Net worth per share of the Company's underlying securities acquired or disposed of:

N/A

12.Cumulative no.of shares held (including the current transaction), their monetary amount, shareholding percentage, and status of any restriction of rights (e.g., pledges), as of the present moment:

After the completion of foregoing capital increase in cash, the Company will

hold the common shares as below:

33,558,000 shares of Jaoming Electric Co.,Ltd., 58,576,560 shares of Haosheng Co., Ltd., 42,500,000 shares of Haoyu Electric Co., Ltd. and 29,507,240 shares of Haosheng No.3 Electric Co., Ltd.

13.Current ratio of securities investment (including the current trade, as listed in article 3 of Regulations Governing the Acquisition and Disposal of Assets by Public Companies) to the total assets and equity attributable to owners of the parent as shown in the most recent financial statement and working capital as shown in the most recent financial statement as of the present:

Current ratio to the total assets: 61.98%

Current ratio to the shareholder's equity: 125.53%

Operating capital: NTD -7,868,113thousands

14.Broker and broker's fee:

None

15.Concrete purpose or use of the acquisition or disposal:

Participate in energy storages related industry

16.Any dissenting opinions of directors to the present transaction:

None

17.Whether the counterparty of the current transaction is

a related party:

No

18.Date of the board of directors resolution:NA

19.Date of ratification by supervisors or approval by

the Audit Committee:NA

20.Whether the CPA issued an unreasonable opinion regarding the current

transaction:

No

21.Name of the CPA firm:

N/A

22.Name of the CPA:

N/A

23.Practice certificate number of the CPA:

N/A

24.Whether the transaction involved in change of business model:

No

25.Details on change of business model:

N/A

26.Details on transactions with the counterparty for the past year and the

expected coming year:

N/A

27.Source of funds:

N/A

28.Any other matters that need to be specified:

Supplementary Announcement to Acer's announcement dated Dec. 26, 2023.