Group 1 - The latest stock price of Yisheng Co. is 9.06 yuan, with an increase of 0.02 yuan compared to the previous trading day. The intraday high reached 9.13 yuan, while the low was 9.01 yuan, with a total transaction volume of 1.22 billion yuan [1] - Yisheng Co. specializes in the breeding and sales of breeding chickens and pigs, with main products including parent generation meat chickens and commercial meat chicken seedlings. On August 21, the company announced that its "Yisheng 817" meat chicken breeding system, developed in collaboration with the Shandong Academy of Agricultural Sciences Poultry Research Institute, has been approved by the National Livestock and Poultry Genetic Resources Committee and will receive a new variety breeding system certificate [1] Group 2 - In terms of capital flow, the main funds experienced a net outflow of 4.2955 million yuan on that day, with a cumulative net outflow of 37.818 million yuan over the past five trading days [2]

Buyback and Shareholder Actions - Sinopec plans to repurchase A-shares with a total fund of no less than RMB 5 billion and no more than RMB 10 billion, potentially reducing its registered capital [1] - Hengbang Mining intends to reduce its stake in the Hong Kong-listed company, WanGuo Gold, by up to 40 million shares, representing approximately 3.69% of WanGuo's total share capital [5] Product Approvals and Market Launches - Wantai Biological's nine-valent HPV vaccine has received the batch release certificate, marking its official market launch and enhancing the company's product lineup [1] - Changchun High-tech's subsidiary has received acceptance for the clinical trial application of GenSci143, a dual-specific antibody drug, which may provide new treatment options for certain tumors [7] Financial Performance - Hongxin Electronics reported a 15.01% increase in revenue to RMB 3.494 billion and a 9.85% rise in net profit to RMB 53.99 million for the first half of 2025 [2] - Sanwei Xinan experienced a net loss of RMB 29.39 million in the first half of 2025, despite a 15.19% increase in revenue to RMB 195 million [3] Corporate Developments - TianTan Bio received a commitment from its controlling shareholder to resolve new competition issues arising from a recent acquisition [4] - Feilu Co. announced a potential change in control, leading to a temporary suspension of its stock trading [8] Investment and Expansion - Jinbei Electric's subsidiary has signed a purchase agreement for a factory in Europe, marking significant progress in establishing its European production base [1] - Shengshi Technology plans to establish a wholly-owned subsidiary to integrate AI and humanoid robot technology with innovative toy products, investing RMB 10 million [6]

Core Viewpoint - Yisheng Co., Ltd. has successfully developed a new breed of broiler chicken, "Yisheng 817," which has been approved by the National Animal Genetic Resources Committee, indicating a significant advancement in poultry breeding technology [1] Group 1: Company Developments - Yisheng Co., Ltd. collaborated with the Shandong Academy of Agricultural Sciences Poultry Research Institute to achieve breakthroughs in breeding [1] - The "Yisheng 817" broiler chicken breed is characterized by low breeding costs, thorough purification of vertically transmitted diseases, high-quality meat products, and high survival rates [1] - This new breed follows the previously developed "Yisheng 909" small white feather broiler chicken breed, showcasing the company's ongoing commitment to innovation in poultry genetics [1]

关于"益生 817"获得畜禽新品种配套系认定的公告 具体内容详见中华人民共和国农业农村部官网于近日发布的《中 华人民共和国农业农村部公告》（第 934 号）。 "益生 817" 肉鸡新品种具有制种成本低、垂直传播性疾病净 化彻底、商品代肉品质好、存活率高等性能优势，是继"益生 909" 小型白羽肉鸡配套系后，公司培育的又一小型白羽肉鸡新品种（配套 系）。"益生 817"主要适用于生产中小规格产品，"益生 909"则主要 适用于生产中大规格产品，两大品种形成差异化市场布局，可满足养 殖企业对不同小型白羽肉鸡品种的需求。 特此公告。 山东益生种畜禽股份有限公司 2025 年 8 月 22 日 山东益生种畜禽股份有限公司 关于"益生817"获得畜禽新品种配套系认定的 公告 本公司及董事会全体成员保证信息披露内容真实、准确和完整， 没有虚假记载、误导性陈述或重大遗漏。 为响应国家种业振兴战略，落实农业农村部《全国畜禽遗传改良 计划（2021—2035 年）》的部署，山东益生种畜禽股份有限公司（以 下简称"公司"）联合山东省农业科学院家禽研究所开展育种攻关， 成功培育的 "益生 817"肉鸡配套系已经国家畜禽遗传资源委 ...

Core Viewpoint - Yisheng Biotechnology Co., Ltd. has successfully developed the "Yisheng 817" broiler breeding system in collaboration with the Shandong Academy of Agricultural Sciences, which has been approved by the National Animal Genetic Resources Committee as part of the national breeding revitalization strategy [1] Group 1 - The company is responding to the national breeding revitalization strategy and implementing the Ministry of Agriculture and Rural Affairs' "National Livestock and Poultry Genetic Improvement Plan (2021-2035)" [1] - The "Yisheng 817" broiler breeding system has received certification from the National Animal Genetic Resources Committee, which will provide the company with a new variety breeding system certificate [1] - The breeding efforts are part of a broader initiative to enhance livestock and poultry genetic resources in China [1]

2025 年员工持股计划实施进展的公告 证券代码：002458 证券简称：益生股份 公告编号：2025-074 山东益生种畜禽股份有限公司 关于2025 年员工持股计划实施进展的公告 本公司及董事会全体成员保证信息披露内容真实、准确和完整， 没有虚假记载、误导性陈述或重大遗漏。 一、员工持股计划概述 山东益生种畜禽股份有限公司（以下简称"公司"）第六届董事 会第三十一次会议和 2025 年第一次临时股东会审议通过了公司 《<2025 年员工持股计划（草案）>及摘要》等员工持股计划相关议 案，同意公司实施 2025 年员工持股计划，具体内容详见 2025 年 8 月 1 日及 2025 年 8 月 19 日公司刊登于《中国证券报》《上海证券报》《证 券时报》《证券日报》和巨潮资讯网（www.cninfo.com.cn）的相关公 告。 二、进展情况 根据《关于上市公司实施员工持股计划试点的指导意见》和《深 圳证券交易所上市公司自律监管指引第1号—主板上市公司规范运作》 相关要求，现将公司2025年员工持股计划实施进展情况公告如下： 公司2025年员工持股计划证券专用账户已于2025年8月19日开立， 证券账户名称 ...

证券代码：002458 证券简称：益生股份 公告编号：2025-073 山东益生种畜禽股份有限公司 2025 年员工持股计划第一次持有人会议决议公告 二、持有人会议审议情况 本次会议经记名投票方式表决，通过决议如下： 1、审议通过了《关于设立 2025 年员工持股计划管理委员会的议 案》。 为保证公司 2025 年员工持股计划的顺利进行，保障持有人的合 法权益，根据公司《2025 年员工持股计划管理办法》的相关规定， 本次员工持股计划设立管理委员会，作为本次员工持股计划的日常监 督管理机构，代表持有人行使股东权利。管理委员会由 3 名委员组成， 设主任委员 1 名，委员任期与本次员工持股计划存续期一致。 表决结果：同意 6,290,745 份，占出席持有人会议的有效表决份 2025年员工持股计划第一次持有人会议决议公告 本公司及董事会全体成员保证信息披露内容真实、准确和完整， 没有虚假记载、误导性陈述或重大遗漏。 一、持有人会议召开情况 2025 年 8 月 18 日，山东益生种畜禽股份有限公司（以下简称"公 司"）2025 年员工持股计划第一次持有人会议在公司会议室以现场与 通讯相结合方式召开。会议通知已于 ...

股东会决议公告 证券代码：002458 证券简称：益生股份 公告编号：2025-072 山东益生种畜禽股份有限公司 2025 年第一次临时股东会决议公告 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。 特别提示： 1、本次股东会未出现否决提案的情形。 2、本次股东会未涉及变更以往股东会已通过的决议。 一、会议召开和出席情况： （一）会议召开情况 1、会议召开时间： 现场会议时间：2025 年 8 月 18 日下午 14：30。 网络投票时间： （1）通过深圳证券交易所交易系统进行网络投票的时间为：2025 年 8 月 18 日上 午 09:15—09:25、09:30-11:30，下午 13:00-15:00； 出席本次股东会的股东及股东代表共 290 人，代表股份 531,976,433 股，占公司 有表决权股份总数的 49.0211%。其中，中小股东共 285 人，代表股份 69,755,278 股， 占公司有表决权股份总数的 6.4279%。 （2）通过深圳证券交易所互联网投票系统进行网络投票的时间为：2025 年 8 月 18 日上午 09:15-下午 ...

北京金诚同达律师事务所 关于 山东益生种畜禽股份有限公司 2025 年第一次临时股东会的 法律意见书 北京市朝阳区建国门外大街 1 号国贸大厦 A 座 10 层 电话：010-5706 8585 传真：010-6518 5057 金诚同达律师事务所 法律意见书 金证法意[2025]字 0818 第 0760 号 致：山东益生种畜禽股份有限公司 北京金诚同达律师事务所（以下简称"本所"）接受山东益生种畜禽股份有 限公司（以下简称"益生股份"或"公司"）的聘请，指派本所律师出席公司 2025 年第一次临时股东会（以下简称"本次股东会"）并对会议的相关事项出具法律 意见书。 本所律师根据《中华人民共和国公司法》（以下简称"《公司法》"）、《中华 人民共和国证券法》《上市公司股东会规则》（以下简称"《股东会规则》"）《律师 事务所从事证券法律业务管理办法》《律师事务所证券法律业务执业规则（试行）》 等有关法律、法规和规范性文件的要求以及《山东益生种畜禽股份有限公司章程》 （以下简称"《公司章程》"）的规定，对本次股东会的召集、召开程序，出席会 议人员的资格、召集人资格，会议的表决程序、表决结果等重要事项进行核验， 出 ...

Core Viewpoint - The company announced that its controlling shareholder, Mr. Cao Jisheng, has completed the process of releasing part of his pledged shares and extending the repurchase of pledges [2] Summary by Relevant Sections - Shareholder Actions - Mr. Cao Jisheng has notified the company about the release of part of his pledged shares and the extension of pledge repurchase [2] - As of the announcement date, Mr. Cao has pledged approximately 202 million shares, which accounts for 44.62% of his total shareholding [2]