Nantian Information: Signed a 58.27 million yuan related party transaction framework contract.

South Sky Information Announcement: The company held a board of directors and supervisors' meeting on July 23, 2025, and approved the proposal to sign a framework contract for daily related transactions with the controlling shareholder, Construction Investment Group. The contract is valid for 3 years, with an estimated total amount of 58.27 million yuan. Previously, the company expected the amount of related transactions with the Construction Investment Group in 2025 to be 9 million yuan. The contract includes the overall integrated procurement project for the Construction Investment Group's information technology and digital construction. The specific construction procurement content framework will be determined within the scope of the contract based on the detailed design plan for the year. This related transaction meets the company's business development needs and will not harm the company's independence or the interests of minority shareholders.