Core Viewpoint - The article discusses the requirements and processes for Chinese companies to list overseas, particularly in Hong Kong, emphasizing the need for compliance with regulatory frameworks and the importance of legal opinions on various corporate actions [3][4][5]. Group 1: Regulatory Compliance - Chinese companies must obtain a filing notice from the China Securities Regulatory Commission (CSRC) before listing in Hong Kong, and this notice must be submitted at least four business days prior to the listing hearing [3]. - The CSRC has issued supplementary material requirements for five companies (four listed in Hong Kong and one in the U.S.) during the week of September 12 to September 18, 2025 [3]. Group 2: Corporate Structure and Valuation - Companies are required to clarify the compliance of their equity control structure, including foreign exchange management and tax regulations, and provide a detailed list of share price changes and valuation bases over the past 12 months [4][5]. - Legal opinions must be provided regarding the compliance of historical equity changes and the rationale behind share transfer pricing [5][6]. Group 3: Business Operations and Foreign Investment - Companies must explain whether their business activities fall under the negative list of foreign investment restrictions as per the 2024 version of the Special Management Measures for Foreign Investment Access [4][8]. - Specific details regarding the business models of companies providing healthcare solutions and internet services must be disclosed, including compliance with data protection regulations [9][11].