Subsidiary Xiamen Cancong Industrial Warns of Potential Stock Delisting

Disclosure Date: July 21, 2026 Statement Date: July 20, 2026 Statement Time: 17:51:09 Company Code: 4930 Company Name: C-Star Network

Subject: Announcement on Risk of Potential Delisting of Shares by Subsidiary Xiamen Cancong Industrial Co., Ltd.

Applicable Clause: Clause 51 Factual Date: July 20, 2026

Details: 1. Factual Date: July 20, 2026 2. Company Name: Xiamen Cancong Industrial Co., Ltd. 3. Relationship with Company (enter '本公司' or 'Subsidiary'): Subsidiary 4. Cross-shareholding Ratio: 42.9% 5. Reason for Occurrence: The subsidiary has issued a public risk alert in accordance with the listing rules of the Shenzhen Stock Exchange regarding the potential delisting of its shares. 6. Countermeasures: None 7. Other Matters to be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this material information also meets Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act, concerning matters having significant impact on shareholders' rights or securities prices): None