1717 Chang Hsin Engineering

Release Date: June 27, 2026 Statement Date: June 26, 2026 Statement Time: 13:34:46 Company Code: 1717 Company Name: Chang Hsin Engineering

Subject: The 2026 Annual Shareholders' Meeting of the Company approved the proposal to lift non-compete restrictions on directors.

Applicable Clause: Clause 21 Factual Date: June 26, 2026

Details: 1. Shareholders' Meeting Resolution Date: June 26, 2026

2. Names and Titles of Directors Permitted to Engage in Competitive Activities: (1) Director Liao Heng-Ning (2) Director Chen Jin-Yuan

3. Approved Competitive Activities: (1) Director of Chang Kuang Precision Machinery Co., Ltd. (2) Director of Tat Hsing Material Co., Ltd.

4. Duration of Permission for Competitive Activities: During the term of serving as a director of the 20th board of the Company

5. Voting Results (as required by Article 209 of the Company Act): The proposal was approved as originally submitted.

Votes in Favor: 629,265,111 votes (91.20%) Votes Opposed: 3,424,112 votes (0.50%) Abstentions: 57,253,736 votes (8.30%) Invalid Votes: 0 votes (0%)

6. Names and Titles of Directors Engaging in Competitive Activities Related to Businesses in Mainland China (Enter "Not Applicable" if not applicable): Not Applicable

7. Company Name and Position Held in Such Mainland China Business: Not Applicable

8. Address of Such Mainland China Business: Not Applicable

9. Business Scope of Such Mainland China Business: Not Applicable

10. Impact on the Company's Financial and Business Operations: Not Applicable

11. If Directors Have Invested in Such Mainland China Business, Investment Amount and Shareholding Ratio: Not Applicable

12. Other Matters to be Disclosed: None