No:1

Subject : Announcement on disposal of the shares of USUN Technology CO., LTD.

Contents:

1.Name and nature of the underlying security (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield): Privately placed common shares of USUN Technology CO., LTD.

2.Date of occurrence of the event:2026/04/10

3.No., unit price, and monetary amount of the transaction:

Amount:4,800,000 shares

Unit price: NTD 61.4

Total monetary amount of the transaction: NTD 294,720,000

4.Counterparty to the trade and its relationship to the company (if the trading counterparty is a natural person and not a related party of the company, its name is not required to be disclosed):

Counterparty: Q-Run Investment Co., Ltd.

Relationship: a subsidiary an equity-method investee of the Company.

5.Where the counterparty to the trade is a related party, an announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, including its relationship with the company and the trading counterparty, the price of the ownership transfer, and date of transfer:

Reason: Following negotiations, the transferee assessed that the target meets its industrial layout needs. The Company intends to optimize its investment portfolio and activate assets; thus, both parties reached an agreement for the share transfer.

Previous owner, relationship between the previous owner and the Company and the counterparty, date of previous transfer, and the transfer amount: Not applicable.

6.Where the owner of the underlying securities within the past five years as been a related party of the company, an announcement shall also include the dates and prices of acquisition and disposal by the related party and its relationship with the company at the time: NA

7.Matters related to the creditor's rights currently being disposed of (including type of collateral of the disposed creditor's rights; if the creditor's rights are creditor's rights over a related party, the name of the related party and the book amount of such creditor's rights currently being disposed of must also be announced):NA

8.Profit (or loss) from the disposal (not applicable in cases of acquisition of securities) (where originally deferred, the status or recognition shall be stated and explained):

Based on the acquisition cost, this transaction resulted in a realized gain of NT$40,121,554, which has been recognized in the current year's undistributed earnings as of the disposal date. In accordance with IFRS 9, NT$-59,026,286 was transferred from Other Equity in 2025 (Year 114), and NT$99,147,840 was recognized as Other Comprehensive Income in 2026 (Year 115).

9.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important stipulations: None

10.The manner in which the current transaction was decided, the reference basis for the decision on price, and the decision-making unit:

Method of determination: Negotiated price.

Reference basis: Based on market conditions.

Decision-making unit: Handled according to the Company's internal approval authority.

11.Net worth per share of company of the underlying securities acquired or disposed of: NTD 37.09

12.The discrepancy between the reference price of private placement company and the transaction amount per share is 20 percent or more:NA

13.Current cumulative no., amount, and shareholding ratio of the securities being traded (including the current transaction) as of the date of occurrence and status of any restriction of rights (e.g.,pledges):

Quantity: 380,000 shares.

Amount: NTD 31,958,000

Shareholding ratio: 0.62%.

Restricted rights: Not applicable.

14.Privately placed securities (including the current transaction) as a percentage of total assets of the company and shareholder's equity of the parent company on the latest financial statements, and the operating capital on the latest financial statements as of the date of occurrence:

Ratio to total assets:0.18%,

Ratio to shareholder's equity:0.40%

Operating Capital: NTD -317,913,506,000

15.Broker and broker's fee: None

16.Concrete purpose or use of the acquisition or disposition: Investment Realization

17.Whether the directors expressed any objection to the present transaction: NA

18.Whether the trading counterparty is a related party: YES

19.Date of approval by board of directors: NA

20.Recognition date by supervisors or approval date by audit committee: NA

21.Whether the CPA issued an opinion on the unreasonableness of the current transaction: NA

22.Name of the CPA firm: NA

23.Name of the CPA:NA

24.License no.of the CPA:NA

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

No:2

Subject: Announcement on behalf of subsidiary Hyield Venture Capital Co., Ltd for its disposal of the shares of USUN Technology CO., LTD.

Contents:

1.Name and nature of the underlying security (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield):Privately placed common shares of USUN Technology CO., LTD.

2.Date of occurrence of the event:2026/04/10

3.No., unit price, and monetary amount of the transaction:

Amount:3,836,000 shares

Unit price: NTD 61.4

Total monetary amount of the transaction: NTD 235,530,400

4.Counterparty to the trade and its relationship to the company (if the trading counterparty is a natural person and not a related party of the company, its name is not required to be disclosed):

Counterparty: Q-Run Investment Co., Ltd.

Relationship: a subsidiary an equity-method investee of the Company.

5.Where the counterparty to the trade is a related party, an announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, including its relationship with the company and the trading counterparty, the price of the ownership transfer, and date of transfer:

Reason: Following negotiations, the transferee assessed that the target meets its industrial layout needs. The Company intends to optimize its investment portfolio and activate assets; thus, both parties reached an agreement for the share transfer.

Previous owner, relationship between the previous owner and the Company and the counterparty, date of previous transfer, and the transfer amount: Not applicable.

6.Where the owner of the underlying securities within the past five years has been a related party of the company, an announcement shall also include the dates and prices of acquisition and disposal by the related party and its relationship with the company at the time: NA

7.Matters related to the creditor's rights currently being disposed of (including type of collateral of the disposed creditor's rights; if the creditor's rights are creditor's rights over a related party, the name of the related party and the book amount of such creditor's rights currently being disposed of must also be announced):NA

8.Profit (or loss) from the disposal (not applicable in cases of acquisition of securities) (where originally deferred, the status or recognition shall be stated and explained):

Based on the acquisition cost, this transaction resulted in a realized gain of NT$32,063,809, which has been recognized in the current year's undistributed earnings as of the disposal date. In accordance with IFRS 9, NT$-47,171,840 was transferred from Other Equity in 2025 (Year 114), and NT$79,235,649 was recognized as Other Comprehensive Income in 2026 (Year 115).

9.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important stipulations: None

10.The manner in which the current transaction was decided, the reference basis for the decision on price, and the decision-making unit:

Method of determination: Negotiated price.

Reference basis: Based on market conditions.

Decision-making unit: Handled according to the Company's internal approval authority.

11.Net worth per share of company of the underlying securities acquired or disposed of: NTD 37.09

12.The discrepancy between the reference price of private placement company and the transaction amount per share is 20 percent or more: NA

13.Current cumulative no., amount, and shareholding ratio of the securities being traded (including the current transaction) as of the date of occurrence and status of any restriction of rights (e.g.,pledges):

Quantity:0 shares.

Amount: NTD 0

Shareholding ratio:0%.

Restricted rights: Not applicable.

14.Privately placed securities (including the current transaction) as a percentage of total assets of the company and shareholder's equity of the parent company on the latest financial statements, and the operating capital on the latest financial statements as of the date of occurrence:

Ratio to total assets:0.13%,

Ratio to shareholder's equity:0.28%

Operating Capital :NTD -317,913,506,000

15.Broker and broker's fee: None

16.Concrete purpose or use of the acquisition or disposition: Investment Realization

17.Whether the directors expressed any objection to the present transaction: NA

18.Whether the trading counterparty is a related party: YES

19.Date of approval by board of directors: NA

20.Recognition date by supervisors or approval date by audit committee: NA

21.Whether the CPA issued an opinion on the unreasonableness of the current transaction: NA

22.Name of the CPA firm: NA

23.Name of the CPA:NA

24.License no.of the CPA:NA

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

No:3

Subject: Announcement on behalf of subsidiary Hon Yuan International Investments CO., LTD for its disposal of the shares of USUN Technology CO., LTD.

Contents:

1.Name and nature of the underlying security (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g., dividend yield):Privately placed common shares of USUN Technology CO., LTD.

2.Date of occurrence of the event:2026/04/10

3.No., unit price, and monetary amount of the transaction:

Amount:784,000 shares

Unit price: NTD 61.4

Total monetary amount of the transaction: NTD 48,137,600

4.Counterparty to the trade and its relationship to the company (if the trading counterparty is a natural person and not a related party of the company, its name is not required to be disclosed):

Counterparty: Q-Run Investment Co., Ltd.

Relationship: a subsidiary an equity-method investee of the Company.

5.Where the counterparty to the trade is a related party, an announcement shall also be made of the reason for choosing the related party as trading counterparty and the identity of the previous owner, including its relationship with the company and the trading counterparty, the price of the ownership transfer, and date of transfer:

Reason: Following negotiations, the transferee assessed that the target meets its industrial layout needs. The Company intends to optimize its investment portfolio and activate assets; thus, both parties reached an agreement for the share transfer.

Previous owner, relationship between the previous owner and the Company and the counterparty, date of previous transfer, and the transfer amount: Not applicable.

6.Where the owner of the underlying securities within the past five years has been a related party of the company, an announcement shall also include the dates and prices of acquisition and disposal by the related party and its relationship with the company at the time: NA

7.Matters related to the creditor's rights currently being disposed of (including type of collateral of the disposed creditor's rights; if the creditor's rights are creditor's rights over a related party, the name of the related party and the book amount of such creditor's rights currently being disposed of must also be announced):NA

8.Profit (or loss) from the disposal (not applicable in cases of acquisition of securities) (where originally deferred, the status or recognition shall be stated and explained):

Based on the acquisition cost, this transaction resulted in a realized gain of NT$6,553,188, which has been recognized in the current year's undistributed earnings as of the disposal date. In accordance with IFRS 9, NT$-9,640,960 of this amount was transferred from Other Equity in 2025 (Year 114), while NT$16,194,148 was recognized as Other Comprehensive Income in 2026 (Year 115).

9.Terms of delivery or payment (including payment period and monetary amount), restrictive covenants in the contract, and other important stipulations: None

10.The manner in which the current transaction was decided, the reference basis for the decision on price, and the decision-making unit:

Method of determination: Negotiated price.

Reference basis: Based on market conditions.

Decision-making unit: Handled according to the Company's internal approval authority.

11.Net worth per share of company of the underlying securities acquired or disposed of :NTD 37.09

12.The discrepancy between the reference price of private placement company and the transaction amount per share is 20 percent or more: NA

13.Current cumulative no., amount, and shareholding ratio of the securities being traded (including the current transaction) as of the date of occurrence and status of any restriction of rights (e.g.,pledges):

Quantity:0 shares.

Amount: NTD 0

Shareholding ratio:0%.

Restricted rights: Not applicable.

14.Privately placed securities (including the current transaction) as a percentage of total assets of the company and shareholder's equity of the parent company on the latest financial statements, and the operating capital on the latest financial statements as of the date of occurrence:

Ratio to total assets:0%,

Ratio to shareholder's equity:0%

Operating Capital: NTD -317,913,506,000

15.Broker and broker's fee: None

16.Concrete purpose or use of the acquisition or disposition: Investment Realization

17.Whether the directors expressed any objection to the present transaction: NA

18.Whether the trading counterparty is a related party: YES

19.Date of approval by board of directors: NA

20.Recognition date by supervisors or approval date by audit committee: NA

21.Whether the CPA issued an opinion on the unreasonableness of the current transaction: NA

22.Name of the CPA firm: NA

23.Name of the CPA:NA

24.License no.of the CPA:NA

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