Core Viewpoint - Several listed companies in the Shanghai and Shenzhen markets announced significant updates, including changes in control, regulatory measures, and sales performance, which may present investment opportunities and risks for investors [2]. Company Announcements - Zhongying Electronics announced that its controlling shareholder is planning a change in control, leading to a suspension of trading from June 9, 2025, for up to two trading days [3]. - ST Lutong received an administrative regulatory measure from the Jiangsu Securities Regulatory Bureau due to internal control deficiencies and failure to disclose significant lawsuits and account freezes [4]. - Lianhua Technology clarified that it does not directly produce chlorantraniliprole and that the related matters have limited impact on its overall business [5]. - Longshen Rongfa's subsidiary received a CNAS laboratory accreditation certificate, which is expected to positively influence future operations, though it will not significantly impact current performance [6]. Sales Performance - Yisheng Co. reported a significant increase in May sales of breeding pigs, with a total of 10,849 heads sold, representing a year-on-year increase of 207.08% [7]. Shareholding Changes - Shentong Technology's shareholder, Biheng Investment, plans to reduce its stake by up to 3%, equating to a maximum of 12.88 million shares [8]. - Ruoyuchen's shareholder, Langzi Co., intends to reduce its stake by up to 3%, not exceeding 4.7681 million shares [9]. - Oujing Technology's shareholder, Wanzhao Huigu, plans to reduce its stake by up to 3%, equating to a maximum of 5.7722 million shares [10]. - Jindan Technology's shareholder, Guangzhou Chengxin, plans to reduce its stake by up to 2.93%, equating to a maximum of 5.635 million shares [11]. - Huashu Gaoke's shareholder, Guotou Chuangye Fund, plans to reduce its stake by up to 2.2%, equating to a maximum of 9.1117 million shares [12]. - Zhongke Soft's shareholder, Kesuan Chuangyuan, plans to reduce its stake by up to 2%, equating to a maximum of 16.6208 million shares [13]. - Hengrun Co. announced multiple shareholders planning to reduce their stakes, with total reductions not exceeding 1.89% of the company's shares [14]. - Del Shares' shareholder, Wuxu 15 Fund, plans to reduce its stake by up to 1.987%, equating to a maximum of 3 million shares [15]. - Jian Ke Yuan's shareholder, Jian Ke Investment, plans to reduce its stake by up to 1% [17]. - Mindong Electric's shareholder, Fujian Investment Development Group, plans to reduce its stake by up to 1% [18]. - Puli Software's chairman and executives plan to reduce their stakes by a total of up to 0.69% [19].

Group 1 - Zhongying Electronics' controlling shareholder is planning a change in control, leading to a stock suspension starting June 9, 2025, for up to 2 trading days [3] - Lianhua Technology clarified that it does not directly produce chlorantraniliprole, and the related matters have limited impact on the company's overall performance [4] - Longshen Rongfa's subsidiary received CNAS laboratory accreditation, which is expected to positively influence future operations, though it will not significantly impact current performance [5] Group 2 - Yisheng Co. reported May sales of breeding pigs at 10,849 heads, a year-on-year increase of 207.08%, with significant sales increases attributed to delayed orders from April [7] - Shentong Technology's shareholder plans to reduce its stake by up to 3%, amounting to no more than 12.88 million shares [9] - Ruoyuchen's major shareholder intends to reduce its stake by up to 3%, not exceeding 476.81 million shares [10] Group 3 - Oujing Technology's major shareholder plans to reduce its stake by up to 3%, not exceeding 577.22 million shares [12] - Jindan Technology's shareholder plans to reduce its stake by up to 2.93%, amounting to no more than 563.5 million shares [13] - Huashu Gaoke's shareholder intends to reduce its stake by up to 2.2%, not exceeding 911.17 million shares [14] Group 4 - Zhongke Soft's major shareholder plans to reduce its stake by up to 2%, not exceeding 16.62 million shares [15] - Hengrun Co.'s shareholders plan to collectively reduce their stake by up to 1.89%, with specific reductions from various shareholders [16] - Del Shares' shareholder plans to reduce its stake by up to 1.987%, not exceeding 3 million shares [17] Group 5 - Jianke Institute's shareholder plans to reduce its stake by up to 1%, not exceeding 146.66 million shares [18] - Mindong Electric's shareholder plans to reduce its stake by up to 1%, not exceeding 457.95 million shares [19] - Puli Software's chairman and executives plan to collectively reduce their stake by up to 0.69% [20]

销售情况简报 证券代码：002458 证券简称：益生股份 公告编号：2025-046 二、原因说明 1、受小型白羽肉鸡毛鸡价格低的影响，小型白羽肉鸡苗的销售 单价同比降低，故 2025 年 5 月公司益生 909 小型白羽肉鸡苗销售收 入同比减少。 山东益生种畜禽股份有限公司 2025 年 5 月鸡苗和种猪销售情况简报 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、2025年5月销售情况 1、鸡苗销售情况 山东益生种畜禽股份有限公司（以下简称"公司"）2025 年 5 月 白羽肉鸡苗销售数量 5,660.97 万只，销售收入 17,386.76 万元，同 比变动分别为 11.35%、-11.21%，环比变动分别为 15.69%、23.05%。 益生909小型白羽肉鸡苗销售数量719.86万只，销售收入633.61 万元，同比变动分别为-8.85%、-36.23%,环比变动分别为4.95%、1.25%。 2、种猪销售情况 公司2025年5月种猪销售数量10,849头，销售收入2,572.29万元， 同比变动分别为207.08%、196.81%，环比变动分别为 ...

Group 1 - Star Stone Investment recently conducted research on Yisheng Livestock and Poultry Science and Technology Co., Ltd, revealing that large white feather broilers are primarily used for processing, while the Yisheng 909 small white feather broilers are more flexible in meeting market demands [1] - The price of parent breeding chicken seedlings increased from 45 yuan per set in May to 50 yuan per set in June, indicating a rising trend [1] - The company introduced 90,000 sets of grandparent meat breed chickens from March to May, which is a significant proportion, and expects tight supply of quality parent breeding chicken seedlings in the second half of 2025, which will support prices [1] Group 2 - Yisheng Livestock plans to invest in a project to build a breeding farm for 1 million sets of parent breeding chickens and a matching feed factory, which is expected to produce about 100 million commercial breeding chickens annually upon reaching full capacity [1] - The decision on which white feather chicken breed to raise is primarily based on which breed can generate more profit [1] - The company has extensive experience in breeding pigs and is strategically positioned in the breeding source sector [1]

Company Overview - Established in 1989, Yisheng Livestock and Poultry Co., Ltd. is the largest ancestor meat chicken breeding enterprise in China and Asia, holding approximately one-third of the domestic imported breeding chicken market [1] - The company has established breeding farms in seven provinces, including Shandong and Jiangsu, and has maintained its leading position in the ancestor white feather meat chicken industry for over a decade [1] - Since 2000, the company has been building original breeding pig farms and has over 20 years of experience in this area, certified as a national core breeding farm in 2013 and re-evaluated in 2018 and 2023 [2] Market Insights - The price of parent breeding chicken has increased from 45 RMB/set in May to 50 RMB/set in June 2025 [3] - The company imported a total of 90,000 sets of ancestor meat chickens this year, accounting for over 50% of the imported ancestor meat chicken market [4] Future Projections - The supply of quality parent breeding chickens is expected to remain tight in the second half of 2025 due to a decrease in the update volume of ancestor white feather meat chickens, which will impact production [5] - The overall supply of quality commercial breeding chickens is also expected to be tight in 2025, driven by strong demand from the slaughter and breeding sectors [6] Investment Plans - The company plans to invest in the construction of a breeding farm with a capacity of 1 million parent breeding chickens, which is expected to produce approximately 100 million commercial breeding chickens annually once fully operational [7] Strategic Considerations - The choice of which white feather chicken breed to raise is primarily based on which breed can provide greater profitability for the breeding enterprises [7] - The company aims to contribute to the supply of breeding sources for the two main types of meat in China, leveraging its extensive experience and management advantages in breeding pigs [7]

关于回购股份进展情况的公告 证券代码：002458 证券简称：益生股份 公告编号：2025-045 山东益生种畜禽股份有限公司 关于回购股份进展情况的公告 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。 山东益生种畜禽股份有限公司（以下简称"公司"）于 2024 年 11 月 1 日召开第六届董事会第二十三次会议，审议通过了《关于以 集中竞价交易方式回购公司股份方案的议案》，同意公司使用银行专 项贷款资金及自有资金以集中竞价交易方式回购公司部分已发行的 人民币普通股（A 股），本次回购股份将用于实施员工持股计划，回购 股份的资金总额不低于人民币 10,000 万元（含），不超过人民币 20,000 万元（含），回购股份的价格不超过人民币 12.00 元/股（含）， 具体回购股份的数量以回购期限届满或回购完毕时实际回购的股份 数量为准，实施期限为董事会审议通过回购股份方案之日起 12 个月 内。具体内容详见 2024 年 11 月 5 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《关于以集 ...

Company Overview - Yisheng Biological Co., Ltd. was established in 1989, focusing on the breeding and promotion of high-quality livestock and poultry breeds, particularly broiler chickens and pigs [1] - The company is the largest ancestor broiler chicken breeding enterprise in China and Asia, holding approximately one-third of the domestic imported breeding chicken market [1] - Yisheng has established breeding farms in seven provinces, maintaining its leading position in the ancestor broiler chicken industry while expanding parent stock chicken production [1] Quality Improvement Initiatives - The company has implemented a source purification strategy to eliminate diseases such as avian leukosis and chicken coryza, becoming the first certified avian leukosis purification demonstration farm in China [2] - The self-bred "Yisheng 909" small white feather broiler chicken has been recognized as a national livestock and poultry new variety, noted for its high purification level and low feed-to-meat ratio [2] - Yisheng has established a core breeding pig farm since 2000, certified as a national core breeding farm, with plans to increase high-quality pig supply starting from the end of 2023 [2] Industry and Policy Context - The 2024 guidelines from the National Health Commission aim to enhance public health and reduce obesity rates, promoting chicken as a preferred protein source due to its high protein and low fat content [3] - The 2025-2030 Food and Nutrition Development Outline emphasizes optimizing poultry meat production and consumption, with a target to reduce feed consumption by over 0.2 kg per kg of animal product by 2030 [3] - China's per capita meat consumption reached over 70 kg in 2024, with poultry consumption still below half of that in developed countries, indicating a significant growth opportunity for white meat [4] Market Trends and Projections - The pet food market is expanding, with chicken being a key ingredient, which is expected to boost chicken consumption [6] - The development of prepared dishes is extending the market for white feather chicken, driving demand for processed chicken products [6] - Yisheng anticipates an increase in parent stock chicken sales in 2025, with a projected volume of approximately 660 million chicks [11] Pricing and Supply Dynamics - The company expects a tight supply of quality parent stock chicken in the second half of 2025 due to a significant decrease in the import of ancestor broiler chickens [10] - The price of parent stock chicken is projected to rise, with recent quotes at 45 RMB per set in May and 50 RMB in June 2025 [9] - The company has imported 36,000 sets of ancestor broiler chickens in March and May 2025, with a total of 18,000 sets in April [12] Financial and Strategic Plans - Yisheng has repurchased 10,686,900 shares, totaling approximately 98 million RMB, to support employee stock ownership plans [12] - The company emphasizes sustainable development while focusing on shareholder returns and plans to continue sharing growth benefits with investors [12]

Group 1 - The China Livestock Breeding Index (930707) has shown a slight increase of 0.18% as of May 19, 2025, with notable gains in stocks such as Xiangjia Co., Ltd. (002982) up by 6.62% and Yike Foods (301116) up by 1.73% [1] - The recent outbreak of highly pathogenic avian influenza in Brazil has led to a suspension of poultry imports from Brazil by Mexico, impacting the poultry market [1] - A report from Guojin Securities indicates that the price of white feather chickens has rebounded due to previous price drops and improved consumer demand, while the supply of breeding chickens has significantly decreased year-on-year [1] Group 2 - The macroeconomic policy adjustments are expected to gradually boost consumer demand, leading to an increase in poultry product consumption and a higher proportion of high-end products [2] - The dairy industry is anticipated to stabilize and recover in the second half of 2025, with ongoing low prices for raw milk and an acceleration in industry capacity reduction [2] - The top ten weighted stocks in the China Livestock Breeding Index account for 69.38% of the index, with companies like Haida Group (002311) and Muyuan Foods (002714) being the most significant contributors [3]

Group 1: Company Overview and Activities - Shandong Yisheng Livestock and Poultry Co., Ltd. participated in the "2025 Shandong Listed Companies Investor Online Reception Day" on May 15, 2025 [2] - The event was held remotely on the Panoramic Network's investor relations interactive platform [2] Group 2: Pricing and Sales Information - The official website lists the price of Yisheng chick seedlings at 3.6 CNY each for April, while the actual average sales price reported is around 2.8 CNY [2][3] - The cost of parent stock chick seedlings is over 10 CNY, while the cost of commercial stock chick seedlings is over 2 CNY [3] Group 3: Import and Supply Chain Insights - Yisheng is the only foreign import company, having introduced over 80,000 sets of grandparent white feather broilers from France, which is a record high in China's import volume [3][8] - In the first quarter, China's grandparent meat breed chicken renewal volume (imports + self-breeding) was 148,500 sets, a decrease of over 60% year-on-year [3][6] Group 4: Stock Buyback Information - As of April 30, 2025, the company has repurchased 10,686,900 shares, with a total transaction amount of 98,066,816.50 CNY (excluding transaction fees) [5] Group 5: Market Impact and Future Projections - The reduction in supply due to import stagnation is expected to positively impact the prices of chick seedlings in the future [6] - The company plans to continue importing grandparent stock, with specific monthly targets for the coming months [4]

投资者网上集体接待日活动的公告 证券代码：002458 证券简称：益生股份 公告编号：2025-044 山东益生种畜禽股份有限公司 关于参加 2025 年山东辖区上市公司投资者 网上集体接待日活动的公告 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。 为进一步加强与投资者的互动交流，山东益生种畜禽股份有限公 司（以下简称"公司"）将参加由山东证监局、山东上市公司协会与 深圳市全景网络有限公司联合举办的"2025 年山东辖区上市公司投 资者网上集体接待日活动"，现将相关事项公告如下： 本次活动将采用网络远程的方式举行，投资者可登录"全景路演" 网站（http://rs.p5w.net）；或关注微信公众号（名称：全景财经）； 或下载全景路演 APP,参与本次互动交流。活动时间为 2025 年 5 月 15 日（周四）15:00-16:30。届时公司高管将在线就公司 2024 年度业绩、 公司治理、发展战略、经营状况、融资计划、股权激励和可持续发展 等投资者关心的问题，与投资者进行沟通与交流，欢迎广大投资者踊 跃参与！ 特此公告。 山东益生种畜禽股份有限公司 董事会 ...