Yihang Announces Disclosure of Securities Trading Information Due to Exchange Alert Threshold

1. Date of Fact: 115/07/08 2. Reason for Disclosure: 115/07/08 3. Financial and Business Information: (1) Monthly Most Recent Month vs. Same Month Last Year May 115 Change % (IFRS Self-Compilation) Revenue (TWD million) 137 5.81% Pre-tax Net Profit (TWD million) 6 -67.77% Net Profit Attributable to Parent (TWD million) 8 167.26% Earnings Per Share (TWD) 0.01 167.26%

(2) Quarterly Most Recent Quarter vs. Same Quarter Last Year Q1 115 Change % (Consolidated Review Figures) (IFRS Auditor Verified) Revenue (TWD million) 568 56.56% Pre-tax Net Profit (TWD million) 18 153.37% Net Profit Attributable to Parent (TWD million) -14 89.43% Earnings Per Share (TWD) -0.02 50.00%

(3) Last Four Quarters Cumulative Last Four Quarters Cumulative (Q2 114 to Q1 115) (Consolidated Review Figures) (IFRS Auditor Verified) Revenue (TWD million) 1,695 Pre-tax Net Profit (TWD million) -33 Net Profit Attributable to Parent (TWD million) -1,227 Earnings Per Share (TWD) -0.06

4. Whether there are material events under Article 4 of the 'Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information for Listed Securities': No. 5. Whether there is a material information press conference under Article 11: No. 6. Complete financial information is available on the Public Information Observation Station. Access paths: (1) Recent Revenue and Profit: Basic Information > Summary (2) Historical Monthly Revenue: Operations Overview > Monthly Revenue > Monthly Revenue Information under IFRS (3) Historical Profit (Auditor Verified/Reviewed): Financial Statements > Under IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical Profit (Voluntary Self-Compilation): Operations Overview > Self-Compilation Profit Announcement 7. Other Matters to Note: None.