3090 DEN-MAO: Announces Financial Results Following Market Attention Threshold Trigger

Release Date: July 17, 2026 Statement Date: July 16, 2026 Statement Time: 15:58:35 Company Code: 3090 Company Name: DEN-MAO

Purpose: Due to the company's securities reaching the public attention threshold on the centralized trading market, DEN-MAO discloses key financial and operational information to ensure investor clarity and prevent misinformation.

Applicable Clause: Item 51 Event Date: July 16, 2026

Details: 1. Event Date: July 16, 2026 2. Reason: In accordance with notification from the Taiwan Stock Exchange. 3. Financial and Operational Information: Consolidated financial data for DEN-MAO is as follows:

Period Most Recent Month YoY Change % Most Recent Quarter YoY Change % Last Four Quarters (June 2026) (Q2 2026) (Q3 2025 – Q2 2026) Item (IFRS Consolidated Self-Reported) (IFRS Consolidated Self-Reported) (IFRS Consolidated Self-Reported) ========================= ===================== ================ ======================= ================= ========================= Revenue (Million NT$) 1,681 32.36 5,154 26.76 17,512 Pre-Tax Net Profit (Million) 639 1,152.94 1,036 524.10 2,630 Net Profit to Owners (Million) 596 1,555.56 909 663.87 2,173 Earnings Per Share (NT$) 2.07 1,117.65 3.16 464.29 8.11

4. Whether any material information under Article 4 of the TWSE's 'Procedures for Verification and Disclosure of Material Information by Listed Companies' applies: No. 5. Whether a press conference under Article 11 of the same procedures is scheduled: No. 6. Complete financial data is available on the Public Information Observation System via the following paths: (1) Recent Revenue and Earnings: Basic Information > Summary (2) Historical Monthly Revenue: Operations Overview > Monthly Revenue > Monthly Revenue under IFRS (3) Historical Earnings (Audited/Reviewed): Financial Statements > Under IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical Earnings (Voluntary Self-Reported): Operations Overview > Self-Reported Earnings Announcements 7. Additional Notes: EPS calculations are based on end-of-period ordinary shares for the most recent month (June 2026) and quarter (Q2 2026), and on weighted average shares for the trailing four quarters. Share counts used: 287,567 thousand (June 2026) vs. 212,597 thousand (June 2025); 287,567 thousand (Q2 2026) vs. 210,353 thousand (Q2 2025); trailing four quarters use weighted average shares of 228,734 thousand (2025), 282,583 thousand (Q1 2026), and 287,567 thousand (Q2 2026).