Core Points - The article outlines the information disclosure management system of East China Construction Group Co., Ltd, emphasizing the importance of timely, accurate, and complete information disclosure to protect shareholders' rights [1][2][3] Group 1: General Principles - The information disclosure management system is established by the board of directors and is responsible for ensuring the accuracy and completeness of disclosed information [1][2] - The board of directors is the first responsible entity for implementing the information disclosure management system, with the board secretary coordinating the process [2][3] Group 2: Implementation and Supervision - The board of directors' office is designated as the permanent institution responsible for information disclosure [2] - The audit and risk control committee supervises the implementation of the information disclosure management system and can recommend corrections for any significant deficiencies found [3] Group 3: Basic Obligations - The company must disclose all information that may significantly impact its stock price in a timely manner [5][6] - Information must be kept confidential before public disclosure, and the company must ensure that the number of individuals aware of the information is minimized [5][6] Group 4: Disclosure Content - The company is required to disclose various documents, including prospectuses, periodic reports, and interim reports, as mandated by relevant laws and regulations [6][7] - Annual reports must include key financial data, stock and bond issuance details, and significant events affecting the company [7][8] Group 5: Approval Procedures - The internal approval process for public disclosures requires that all documents be drafted or reviewed by the board secretary and approved by the board of directors [14][15] - Any significant decisions must be communicated to the board secretary for timely disclosure [16][17] Group 6: Confidentiality Measures - All personnel involved in information disclosure must adhere to confidentiality obligations to prevent unauthorized disclosure of sensitive information [44][45] - The company must take necessary measures to control the dissemination of information before it is publicly disclosed [45][46] Group 7: Training and Compliance - The board secretary is responsible for organizing training on the information disclosure system for relevant personnel [54][55] - The company must comply with the regulations set forth in the "Management Measures for Information Disclosure of Listed Companies" and the "Listing Rules of the Shanghai Stock Exchange" [55][56]

Group 1 - The company held its 19th meeting of the 8th Board of Directors on August 5, 2025, with all 9 directors present, and the meeting complied with relevant laws and regulations [1] - The Board approved the full text and summary of the 2025 semi-annual report with a unanimous vote of 9 in favor [2] - The Board approved an increase in the 2025 technical transformation investment budget to no more than 400 million yuan, allowing the general manager to implement specific investment projects [2][3] Group 2 - The Board approved the establishment of a market value management system for the company, with a unanimous vote of 9 in favor [3] - The Board approved the revision of the information disclosure management system, also with a unanimous vote of 9 in favor [3] - The Board agreed to adjust the board members of Shanghai Fuchi High-Tech Co., Ltd., appointing three new directors while keeping the rest unchanged, with a unanimous vote of 9 in favor [4]

Core Viewpoint - The document outlines the information disclosure management system of Shanghai Mijuan Communication Technology Co., Ltd, emphasizing the importance of timely, accurate, and complete information disclosure to protect the rights of stakeholders [2][3][4]. Group 1: General Principles - The system is established to regulate the company's information disclosure behavior and ensure compliance with relevant laws and regulations [2]. - The board of directors is responsible for implementing this system, with the chairman as the primary responsible person [4][5]. - The company must conduct regular self-inspections of the information disclosure management system and correct any identified issues promptly [5][6]. Group 2: Disclosure Content - The company is required to disclose periodic reports, including annual, semi-annual, and quarterly reports, which must be audited by a qualified accounting firm [10][11]. - Any significant changes in the company's operational policies, major investments, or financial conditions must be disclosed immediately [16][17]. - The company must also disclose any major events that could significantly impact its securities trading prices [16][19]. Group 3: Disclosure Procedures - The disclosure process for periodic reports involves multiple steps, including drafting, review by the board, and final approval by the chairman [27][28]. - For temporary reports, responsible parties must report significant events to the board secretary immediately upon knowledge [28][29]. - The company must issue corrections or clarifications for any previously disclosed information that contains errors or omissions [29][30]. Group 4: Responsibilities and Supervision - The chairman and board secretary are tasked with ensuring compliance with the information disclosure management system [30][31]. - The audit committee is responsible for supervising the information disclosure practices of the board and management [32][33]. - Any violations of the disclosure regulations may result in disciplinary actions against responsible individuals, including legal consequences [50][51].