12月5日，宁波健信超导科技股份有限公司（股票简称：健信超导，股票代码：688805）正式披露招股意向书等公告，将在上交所科创板挂牌上市。健信超 导首次公开发行股票不超过4，192.00万股，不低于发行后总股本的25%，发行后总股本不超过16，768.00万股，保荐机构为广发证券。 健信超导初步询价日为12月10日，网上路演日为12月12日，网上、网下申购日为12月15日，网上、网下缴款日为12月17日。本次IPO募集资金将投向年产 600套无液氦超导磁体项目、年产600套高场强医用超导磁体技改项目和新型超导磁体研发项目。 健信超导持续进行研发投入，截至2025年6月30日，拥有授权专利共计85项，其中发明专利45项。公司分别于2023年入选国家专精特新"小巨人"企业、于 2024年入选国家专精特新重点"小巨人"企业。公司设有浙江省高新技术企业研究开发中心、浙江省博士后工作站、院士工作站，已完成宁波市科技创新2025 重大专项"无液氦超导磁体的研发"项目，参与完成工信部医疗器械材料生产应用示范平台项目并具体负责"无液氦超导磁体生产应用示范线、无液氦超导磁 体测试评价和考核验证能力"，报告期内参与科技部国家重点 ...

Core Points - The Shanghai Stock Exchange's Listing Review Committee is scheduled to hold its 43rd meeting on October 21, 2025, to review the initial public offering (IPO) of Ningbo Jianxin Superconducting Technology Co., Ltd. (referred to as "Jianxin Superconducting") [1] - Jianxin Superconducting plans to list on the Sci-Tech Innovation Board and aims to raise CNY 77.5 million, which will be allocated to projects including the annual production of 600 sets of liquid helium-free superconducting magnets, the annual production of 600 sets of high-field medical superconducting magnets, and the research and development of new superconducting magnets [1] Company Ownership Structure - As of the signing date of the prospectus, Xu Jianyi directly holds 41.51% of the company's shares, making him the controlling shareholder. Xu Jianyi, Xu Hui, and Xu Dianbo hold 41.51%, 4.36%, and 4.36% of the shares, respectively. Xu Hui controls an additional 4.84% of voting rights through Kaifang Investment and Qiyi Investment, resulting in a total of 59.92% voting rights controlled by the three individuals [1] - Xu Jianyi is the father of Xu Hui and Xu Dianbo, who are siblings. The three have signed a "Joint Action Agreement" on October 18, 2019, establishing them as the actual controllers of the company [1] Sponsorship Information - The sponsor for Jianxin Superconducting's IPO is GF Securities Co., Ltd., with representatives Zhou Yin and Wang Zhen serving as the sponsoring representatives [1]