4989 Rongke Co., Ltd.

Announcement Date: July 8, 2026 Statement Date: July 7, 2026 Statement Time: 15:21:51 Company Code: 4989 Company Name: Rongke Purpose: Due to the company's securities reaching the Taiwan Stock Exchange's criteria for public attention trading information, we are disclosing significant financial and operational information to assist investor understanding.

Applicable Clause: Clause 51 Factual Date: July 7, 2026

Details: 1. Factual Date: 07/07/2026 2. Reason: In accordance with notification from the Taiwan Stock Exchange Corporation. 3. Financial and Operational Information:

Period Most Recent Month YoY Change% Most Recent Quarter YoY Change% Last Four Quarters Cumulative Jun 2026 Q1 2026 Q2 2025 to Q1 2026 (IFRS - Standalone (Audited Figures (Audited Figures Financial Data) ) ) ==================== ===================== ================== Item (Amount) (%) (Amount) (%) (Amount) ======== ============ ======= ============ ======== ================== Revenue 370.18 73.41% 977.05 92.75% 3,131.80 (Million) Pre-tax Profit (Loss) 18.73 115.40% 22.87 124.48% (361.29) (Million) Net Profit (Loss) Attributable to Owners of Parent 18.30 117.67% 18.29 119.99% (369.76) (Million) Earnings Per Share 0.13 117.67% 0.13 119.99% (2.69) (NT$)

4. Whether there are any material events under Article 4 of the 'Taiwan Stock Exchange Corporation Procedures for Verification and Disclosure of Material Information by Listed Companies': No. 5. Whether there are any press conferences scheduled under Article 11 of the same procedures: No. 6. Complete financial information is available on the Public Information Observation Station. Access paths: (1) Recent operating revenue and profit/loss: Basic Information > Highlights (2) Historical monthly revenue: Operations Overview > Monthly Revenue > Monthly Revenue Information under IFRS (3) Historical profit/loss (audited/reviewed figures): Financial Statements > Under IFRS > Consolidated/Individual > Comprehensive Income Statement (4) Historical profit/loss (voluntary self-calculation announcements): Operations Overview > Self-Announced Profit/Loss 7. Other Matters to be Disclosed: None.