Ownership Structure

List of Major Shareholders

April 18st 2023;Unit: Shares;%

Main    Shareholders

Nationality/    Place of Register

Shares Owned

Share

(%)

Chang, Hsien-Ming

ROC

11,093,540

10.03%

Jiayuan Investment   Co., Ltd.

Representative:   Wu, Su-Chiu

ROC

10,759,739

9.73%

PJ Asset   Management Co., Ltd.

Representative:   Lin, Chen-Hai

ROC

8,675,315

7.84%

Dreeby Industry   Co., Limited

Representative:   Chang, Hsien-Ming

ROC

2,719,000

2.46%

Custody Account   of JPMorgan Chase Bank - Investment Account

GB

1,743,035

1.58%

Three-Party SBL   Investment Custody Account (from Securities Trading Department’s Trading Platform   of Mitsubishi UFJ Morgan Stanley Securities ) Maintained by HSBC Bank   (Taiwan) Limited

JP

1,311,000

1.19%

Chang, Yueh-Chao

ROC

1,273,000

1.15%

Yeong Guan New   Material Co., Ltd.

Representative:   Lee Chang, Yueh-Yun

ROC

1,154,180

1.04%

Wu, He-Chuan

ROC

1,108,000

1.00%

Capital OTC   Fund Custody Account Maintained by Taiwan Business Bank

ROC

952,217

0.86%


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