北方导航控制技术股份有限公司关于变更公司财务总监（财务负责人）的公告

Group 1 - The company announced the resignation of its Chief Financial Officer (CFO), Zhou Jing, due to work changes, effective immediately upon delivery of the resignation letter [1][25] - Zhou Jing will continue to serve as a director and deputy secretary of the party committee at the company and hold directorships in its subsidiaries [1][25] - The board appointed Tan Chen as the new CFO, whose term will align with the current board's term [1][3][4] Group 2 - The board's audit committee expressed gratitude for Zhou Jing's contributions during her tenure and approved her resignation [3][4] - Tan Chen possesses the necessary qualifications and extensive experience in management and finance, making him suitable for the CFO role [3][4][26] - The appointment of Tan Chen was unanimously approved by the board's audit and nomination committees [2][4] Group 3 - The company disclosed its plans for daily operational related-party transactions, which require shareholder approval [7][8] - The board approved the related-party transaction proposal during a meeting held on December 25, 2025, with all votes in favor [7][8] - Independent directors confirmed that the transaction procedures complied with relevant laws and regulations, ensuring fairness and protecting minority shareholders' interests [8][22] Group 4 - The company anticipates daily related-party transactions for 2026, including sales of goods up to RMB 4.5 billion and service provisions up to RMB 58 million [10] - The company will also engage in procurement transactions not exceeding RMB 2.5 billion and asset leasing with expected rental income of up to RMB 1 million [10][11] - The related-party transactions are deemed necessary for the company's operations and will not adversely affect its financial status [22][23]