Tun Chi Technology Announces Unaudited Consolidated Financial Results for First Half of 2026

Release Date: July 16, 115 Statement Date: July 15, 115 Statement Time: 14:34:25 Company Code: 2459 Company Name: Tun Chi Subject: Announcement of the Company's Unaudited Consolidated Income Information for the First Half of 115 Applicable Clause: Item 51 Factual Date: July 15, 115

Details: 1. Factual Date: 7/15/115 2. Company Name: Tun Chi Technology Co., Ltd. 3. Relationship with Company (Please enter '本公司' or 'Subsidiary'):本公司 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: The Company's unaudited consolidated income information for the first half of 115 6. Response Measures: None 7. Other Matters to be Disclosed (If the entity of the event or resolution is a publicly issued company or above, this material information also qualifies as a matter under Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act that significantly affects shareholder rights or securities prices):

The Company's unaudited consolidated income information for the first half of 115 is as follows:

(Unit: NT$ Thousand) Revenue: 2,583,740 Thousand Operating Profit: 406,714 Thousand Pre-tax Profit: 478,286 Thousand Post-tax EPS (Attributable to Majority Shareholders): 3.19 NT$

(Note 1: Dividend income repatriated as of the end of the first half contributed 0.43 NT$ to EPS) (Note 2: The financial data for the first half of 115 is internally prepared by the Company and has not been reviewed by auditors)