3037 Unimicron: Announcement regarding the disposal of all shares of Plato Electronics (Shenzhen) Co., Ltd.

Announcement Date: May 22, 115 Company Name: Unimicron

Subject: Announcement regarding the decision by our subsidiary, PLATO ELECTRONICS (CAYMAN) LIMITED, to sell all equity interests in Plato Electronics (Shenzhen) Co., Ltd.

1. Target: All equity interests in Plato Electronics (Shenzhen) Co., Ltd. 2. Total Transaction Amount: 880 million RMB. 3. Counterparty: Jing Hua Electronics (Shenzhen) Co., Ltd. 4. Reason for selection: The statutory representative of the counterparty is a director of our subsidiary, PLATO ELECTRONICS (CAYMAN) LIMITED, and is familiar with the operations of Plato Electronics. 5. Estimated Gain on Disposal: Approximately 86.094 million USD, subject to final settlement, exchange rates, and accounting audit. 6. Payment Terms: Payment to be made in two stages (70% and 30%). 7. Purpose: Strategic planning of the group and integration of resources in mainland China. 8. Other conditions: Subject to approval by the Investment Commission of the Ministry of Economic Affairs.