No:1

Subject: Announcement on behalf of subsidiary Bon Shin International Investments CO., LTD for its disposal of Advanced Optoelectronic Technology Inc common shares

Contents:

1.Name of the securities: Common shares of Advanced Optoelectronic Technology Inc

2.Trading date:2023/11/23-2024/07/18

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

Amount:9,853,000 shares

Average Unit price：NT$30.57

Total monetary amount of the transaction: NT$301,208,700(transaction fees and transaction tax included)

4.Gain (or loss) through disposal (not applicable in case of acquisition of securities):

According to the cost accounting method, the realized gain is NT$99,179,761. Of this amount, NT$23,356,064 have been recognized in the undistributed earnings in fiscal year 2023, and NT$75,823,697 will be recognized in the undistributed earnings in fiscal year 2024.

In accordance with IFRS 9, NT$68,696,400 is reclassified from other equity in fiscal year 2023, while NT$ 7,127,297 is classified as other comprehensive income for fiscal year 2024.

5.Relationship with the underlying company of the trade: None

6.Current cumulative amount held, monetary amount, and shareholding percentage of cumulative holdings of the securities being traded (including the current trade), and status of any restriction of rights (e.g.pledges):

Cumulative amount held :0 shares；

Cumulative monetary amount held: NTD 0；

Shareholding percentage: 0%

Status of any restriction of rights (e.g.pledges):None

7.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:

Ratio to total assets:0.22%

Ratio to owners' equity:0.51%

Working capital: NT$-241,579,390 (in thousands)

8.Concrete purpose of the acquisition or disposal: Investment Realization

9.Any dissenting opinions of directors to the present transaction: None

10.Whether the counterparty of the current transaction is a related party: No

11.Trading counterparty and its relationship with the Company: NA

12.Date of the board of directors resolution: NA

13.Date of ratification by supervisors or approval by the audit committee: NA

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