9月12日讯，近日，北交所拟IPO企业大亚股份（832532）在北交所官网公布了公司第一轮问询的回复。 在船舶铸件业务方面，公司拥有大型船舶铸件生产过程中的钢丸激冷、铸钢件冒口下成分偏析综合控制等多项核心技术。公司船舶铸件业务系采用无氮呋喃 树脂砂造型工艺，利用仿真软件模拟金属液充型和顺序凝固，配置电炉+LF 炉炼钢，结合氩气净化钢水，能实现对钢水化学成分进行精确分析，对钢水含气 量进行精准检测，公司船用铸件产品的尺寸精度、表面光洁度、机械性能和内部质量达到或超过国家和国际标准以及国内外各船级社标准要求。大亚机电已 熟练掌握高端船舶制造需要的高性能轴系、舵系等铸件的生产技术，并持续为全国各大船厂的豪华邮轮、LPG/LNG/LEG 运输船、冰区航行船及海洋科考 船、PCTC汽车船、大型集装箱、VLCC 超级油轮、VLOC 超大型矿砂船及各类船型提供多种类的材质、形状结构、性能要求的船用轴系、舵系专用大 1-1- 23 型铸件。 目前，公司下游客户主要为中国船舶、中国远洋海运、青山控股、江苏新时代造船、恒力重工、招商局、三一集团等知名企业。 业绩方面，2023年至2025年上半年，公司分别实现营收9.68亿元、1 ...

Summary of Key Points Core Viewpoint - The Beijing Stock Exchange (BSE) has seen significant trading activity and new listings, indicating a growing market with increased investor interest and participation. Trading Activity - As of May 18, 2025, there are 266 companies listed on the BSE with a total share capital of 36.498 billion shares and a circulating share capital of 23.096 billion shares [2] - For the week of May 12 to May 18, the trading volume reached 8.072 billion shares, a week-on-week increase of 42.28%, while the trading amount was 173.488 billion yuan, up 39.35% from the previous week [3] - The average trading price during this period was 21.49 yuan, reflecting a decrease of 2.06% [3] - The BSE 50 Index rose by 3.13% to 1422.43 points, with 25 stocks increasing, none remaining flat, and 25 declining [3] New Listings - One company successfully listed on the BSE during the week, bringing the total to 266 [6] - Tian Gong Co., Ltd. (stock code: 920068) was the latest addition, listed on May 13, 2025, and is the first company to split from a Hong Kong stock to list on the BSE [7] - On its first trading day, Tian Gong's stock peaked with a 498.98% increase, closing at 20.17 yuan, a rise of 411.93% with a trading volume of 1.076 billion yuan [7] - As of May 19, 2025, Tian Gong's stock price reached 22.99 yuan, with a total market capitalization of 14.9 billion yuan, reflecting a 4.45% increase from its listing day [7] Upcoming Listings and Applications - As of May 18, 2024, there are 62 companies awaiting approval for listing on the BSE, including 5 under review, 48 in inquiry, and 8 submitted for registration [5] - One company, Youli Intelligent Equipment Co., Ltd. (stock code: 874325), passed the listing committee meeting during this period [12] - Youli Intelligent plans to raise 358 million yuan for the construction of a production base for photovoltaic support components and other projects [13] Financial Performance of Listed Companies - Tian Gong's revenue for 2022 to 2024 was 383 million yuan, 1.035 billion yuan, and 801 million yuan, with net profits of 70.31 million yuan, 175 million yuan, and 174 million yuan respectively [9] - For the first quarter of 2025, Tian Gong expects to achieve revenue of 192 million yuan [10] - Youli Intelligent's revenue for the same period was 433 million yuan, 658 million yuan, and 729 million yuan, with net profits of 42.19 million yuan, 78.17 million yuan, and 90.05 million yuan [14] Other Companies in the Pipeline - Several companies, including Yuelong Technology, Kelairedi, and Kanghua Co., have passed the counseling acceptance process, indicating their readiness for potential listing [20][21][24] - These companies are involved in various sectors, including medical devices, chemical pharmaceuticals, and tourism services, showcasing the diversity of industries represented on the BSE [24][26][27]