Core Viewpoint - The report summarizes the sponsorship work of Changjiang Securities for the initial public offering (IPO) and convertible bond issuance of Shenzhen Songsheng Electronics Co., Ltd., highlighting the completion of the IPO fundraising and ongoing supervision of the remaining convertible bond funds [1][7]. Group 1: Sponsorship Overview - Changjiang Securities acted as the sponsor for Shenzhen Songsheng Electronics' IPO and convertible bond issuance, with the supervision period for the IPO from June 7, 2021, to December 31, 2024, and for the convertible bonds from October 24, 2022, to December 31, 2024 [1]. - As of December 31, 2024, all funds raised from the IPO have been fully utilized, while the funds from the convertible bond issuance are still pending usage [1][7]. Group 2: Responsibilities and Compliance - The sponsor conducted due diligence, prepared application documents, and actively cooperated with the Shenzhen Stock Exchange during the review process, ensuring compliance with relevant laws and regulations [3][4]. - During the ongoing supervision phase, the sponsor monitored the use of raised funds, ensuring adherence to regulatory requirements and the absence of unauthorized changes in fund usage [5][7]. Group 3: Issuer's Cooperation - The issuer provided timely and accurate information and documentation to the sponsor, facilitating the due diligence and recommendation processes [6]. - The issuer complied with legal requirements for information disclosure and cooperated with the sponsor's supervision activities, ensuring smooth communication and documentation provision [6]. Group 4: Fund Management and Usage - The issuer and the sponsor established a fund supervision agreement and management system, confirming that the usage of raised funds complied with regulatory requirements and did not involve any unauthorized changes or violations [7]. - The report indicates that there are no significant violations in the use of raised funds, and the issuer has maintained proper documentation and disclosure practices [7].