证券日报网讯 12月8日，辉煌科技在互动平台回答投资者提问时表示，公司近年来研发的铁路信号机械 室智能巡检系统是通过智能识别算法识别信号机械室内信号设备状态，提高铁路电务设备维护巡检工作 效率，保障设备安全。目前，铁路信号机械室智能巡检系统产品已完成研发试点验证，和小批量订单交 付，后续将持续提升产品市场竞争力，加大市场推广力度，拓宽公司监控产品线。 （文章来源：证券日报） ...

Group 1 - The core viewpoint of the article highlights that Electric Science Digital (600850.SH) has established a significant partnership with Guorui Zhongshu, which is an important collaborator for Baifei Electronics [1] - Baifei Electronics maintains good cooperative relationships with several domestic DSP manufacturers, indicating a strong position in the industry [1]

Core Viewpoint - Shenzhen Yingfit Technology Co., Ltd. has provided guarantees for its wholly-owned subsidiaries, with the total amount exceeding 100% of the latest audited net assets, raising concerns about potential risks associated with these guarantees [2][15]. Summary by Sections Guarantee Overview - The company approved a guarantee limit of up to RMB 42 million for 2025, with specific allocations for subsidiaries based on their asset-liability ratios: RMB 39.9 million for those above 70% and RMB 2.1 million for those below [3][4]. - The guarantees cover various financing activities, including loans and performance guarantees, and include types such as guarantees, mortgages, and pledges [3][4]. Guarantee Progress and Main Agreement - On November 28, 2025, the subsidiaries signed loan agreements with Beijing Bank for amounts of RMB 9.9535 million, RMB 10 million, RMB 6.52 million, and RMB 10 million, with a one-year term [5]. - The company signed guarantee contracts with Beijing Bank, covering all debts under the loan agreements, including principal, interest, penalties, and related costs [5][6]. Current Guarantee Balances - After the guarantees, the remaining guarantee balances for the subsidiaries are as follows: Yingfit Intelligent - RMB 18.4535 million, Yingfit Renyong - RMB 136.2674 million, Yingfit Software - RMB 7 million, and Yingfit Zhiyuan - RMB 29.06 million [7]. Subsidiary Basic Information - Yingfit Intelligent: Established in 2016, with a registered capital of RMB 10 million, focusing on video surveillance and IoT technology [8]. - Yingfit Renyong: Established in 1999, with a registered capital of RMB 18.285 million, specializing in system integration and technology services [10]. - Yingfit Software: Established in 2008, with a registered capital of RMB 7.6 million, focusing on software development for security and monitoring systems [12]. - Yingfit Zhiyuan: Established in 2019, with a registered capital of RMB 10 million, providing smart city and smart park services [14]. Cumulative Guarantees and Status - As of the announcement date, the total guarantees provided by the company and its subsidiaries amount to RMB 56 million, with a balance of RMB 31.58009 million, representing 180.04% of the latest audited net assets [15].

登录新浪财经APP 搜索【信披】查看更多考评等级 证券代码：688400 证券简称：凌云光 公告编号：2025-094 凌云光技术股份有限公司关于延长第四次股份回购实施期限的公告 2024年8月13日，公司完成第二次回购计划，实际回购公司股份3,480,750股，占公司总股本的比例为 0.7510%，使用资金总额为人民币59,992,936.01元（不含印花税、交易佣金等交易费用）。具体内容详 见公司同日披露于上海证券交易所网站（www.sse.com.cn）的《关于股份回购实施结果暨股份变动的公 告》。 2024年11月27日，公司完成第三次回购计划，实际回购公司股份2,563,582股，占公司总股本的比例为 0.5531%，使用资金总额为人民币59,978,528.99元（不含印花税、交易佣金等交易费用）。具体内容详 见公司于2024年11月29日披露于上海证券交易所网站（www.sse.com.cn）的《关于第三次股份回购实施 结果暨股份变动的公告》。 2024年11月28日，公司召开了第二届董事会第十二次会议，审议通过了《关于以集中竞价交易方式第四 次股份回购方案的议案》，同意公司启动第四次回购，以自 ...

登录新浪财经APP 搜索【信披】查看更多考评等级 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误导性陈述或重大遗 漏。 一、担保事项概述 中富通集团股份有限公司(以下简称"中富通"或"公司")已于2025年6月27日召开2024年度股东大会，审议 通过《关于公司2025年度拟为下属公司提供担保预计额度的议案》，公司为公司下属公司向银行等金融 机构或其他商业机构申请授信额度累计不超过3.7亿元人民币提供连带责任担保。该议案有效期自2024 年度股东大会审议通过之日起至召开2025年度股东大会之日止。 为满足公司控股子公司福建天创信息科技有限公司（以下简称"天创信息"）的经营所需，公司与上海浦 东发展银行股份有限公司福州分行（以下简称"浦发银行"）签署了《最高额保证合同》，公司为天创信 息在浦发银行申请的人民币1,000万元贷款提供连带责任保证担保，保证期间自每笔债权合同债务履行 期届满之日起至该债权合同约定的债务履行期届满之日后三年止。 注册号：913501002601951900 住 所：福州市闽侯县上街镇科技东路8号创业大厦16-17层 法定代表人：柯宏晖 注册资本：人民币肆仟肆 ...

近日，山东烟台公安网安部门在工作中发现，某机构门户网站遭网络攻击，网站被篡改并植入违法内 容，严重扰乱网络空间秩序，造成不良社会影响。 公安网安部门接报后立即开展调查，发现： 提醒 此案暴露出，当前信息系统供应链安全管理缺位的典型缩影：使用单位"一托了之"，服务商"交付即 走"，双方均忽视法定安全义务，形成责任真空，最终酿成安全事件。 依法处理 该机构将门户网站委托给某第三方开发运维公司建设与维护。 该公司在系统开发调试阶段未落实基本网络安全防护措施，未修复已知漏洞，亦未履行风险告知义务， 将存在安全隐患的系统交付上线。 与此同时，该机构作为网络运营者，未依法履行网络安全主体责任。既未建立网络安全管理制度，也未 按网络安全等级保护制度要求部署必要防护措施，对托管系统的安全状况失察失管，导致平台被入侵、 篡改。 案情回顾 《中华人民共和国网络安全法》第二十一条规定：网络运营者应当按照网络安全等级保护制度的要求， 履行安全保护义务，保障网络免受干扰、破坏或者未经授权的访问，防止网络数据泄露或者被窃取、篡 改。 《中华人民共和国网络安全法》第二十二条之第一款规定：网络产品、服务应当符合国家标准的强制要 求，网络产品 ...

天眼查App显示，近日，阜阳市宗福珠宝有限公司成立，法定代表人为杨德珍，注册资本10万人民币， 经营范围为一般项目：珠宝首饰批发；珠宝首饰零售；珠宝首饰回收修理服务；金银制品销售；有色金 属合金销售；销售代理；互联网销售（除销售需要许可的商品）；珠宝首饰制造；信息系统运行维护服 务；网络与信息安全软件开发；计算机系统服务；信息系统集成服务；技术服务、技术开发、技术咨 询、技术交流、技术转让、技术推广（除许可业务外，可自主依法经营法律法规非禁止或限制的项 目）。 ...

Group 1 - Wanda Information's stock increased by 3.34% on November 17, with a trading volume of 172 million yuan. The financing buy-in amount was 16.04 million yuan, while the financing repayment was 17.18 million yuan, resulting in a net financing buy of -1.14 million yuan. The total financing and securities balance reached 691 million yuan as of November 17 [1] - The financing balance of Wanda Information is 690 million yuan, accounting for 6.73% of its market capitalization, which is below the 50th percentile level over the past year, indicating a low position [1] - On the same day, Wanda Information repaid 400 shares in securities lending, with no shares sold, resulting in a securities lending balance of 86,010 yuan, which is also below the 40th percentile level over the past year, indicating a low position [1] Group 2 - As of November 10, the number of shareholders of Wanda Information was 57,800, a decrease of 1.07% from the previous period. The average circulating shares per person increased by 1.08% to 24,897 shares [2] - For the period from January to September 2025, Wanda Information reported operating revenue of 1.329 billion yuan, a year-on-year increase of 0.57%. However, the net profit attributable to the parent company was -408 million yuan, reflecting a year-on-year growth of 27.07% [2] - Since its A-share listing, Wanda Information has distributed a total of 292 million yuan in dividends, with no dividends distributed in the past three years [3]

Core Insights - Berkshire Hathaway has made significant changes to its investment portfolio in the third quarter, including a new position in Alphabet and further reductions in Apple holdings [1][3]. Group 1: New Investments - Berkshire initiated a position in Alphabet, purchasing approximately 17.85 million shares, valued at around $4.34 billion, making it the tenth largest holding in the portfolio, accounting for 1.62% of total holdings [3][2]. - The investment in Alphabet is believed to have been influenced by investment managers Todd Combs or Ted Weschler, who have previously shown interest in technology stocks [3]. Group 2: Increased Holdings - Berkshire increased its stake in Chubb Limited (formerly known as ACE Limited) by approximately 4.3 million shares, raising its investment by $1.21 billion, with the holding percentage increasing from 3.04% to 3.31% [3]. Group 3: Reduced Holdings - Berkshire further reduced its stake in Apple by approximately 41.79 million shares, a decrease of over 14.92% from the previous quarter, although it still holds over 238 million shares valued at approximately $60.66 billion, making Apple the largest holding [5]. - The company also reduced its position in Bank of America by about 37.2 million shares, with the holding percentage dropping from 11.12% to 10.96% [5]. - Berkshire completely exited its position in D.R. Horton, selling all 1.4854 million shares, which is significant as the company is considered a barometer for the U.S. housing market [5].

公开信息显示，珠海晶瓷的经营范围包括半导体分立器件制造、半导体器件专用设备制造、特种陶瓷制 品制造等。 今年10月，全芯智造技术有限公司获得了A+轮融资，建投投资、创钰投资、中金资本、蒙娜丽莎等十 几家投资企业参投。公开资料显示，全芯智造成立于2019年9月，是一家专注于智能制造一体化解决方 案的专业软件开发与服务的高新科技企业。作为国内制造EDA领先企业，全芯智造已申请专利超200 项，硕士及以上员工占比超70%，拥有国产计算光刻平台、设计制造协同优化平台、智能制造平台和全 流程工艺器件仿真设计平台。 今年10月，国家知识产权局信息显示，珠海晶瓷申请一项名为"一种陶瓷基板钻孔加工方法"的专利，专 利摘要显示，本发明的陶瓷基板钻孔加工方法通过"激光锥孔导向-复合材料填塞-机械精密钻削"阶梯式 打孔，不仅解决了薄基板小孔加工易崩裂的问题，并且提高了良品率，还可降低机械钻孔的硬质钻嘴断 裂风险，减少加工耗时，降低生产成本；本发明的钻孔加工方法兼容各种陶瓷基板，可解决电子封装多 材料集成痛点。 企查查信息显示，11月12日，珠海晶瓷电子科技有限公司(以下简称"珠海晶瓷")发生投资人变更，其 中，珠海横琴晶途投资合伙 ...