Core Points - The company announced that its major shareholder, Huasheng Baili Investment Development (Beijing) Co., Ltd., plans to reduce its stake by up to 2,664,000 shares through centralized bidding and block trading [2] - The reduction includes a maximum of 888,000 shares (1% of total share capital) through centralized bidding and 1,776,000 shares (2% of total share capital) through block trading [2] - As of the announcement date, Huasheng Baili has reduced its holdings by 887,000 shares, bringing its ownership down from 9.96% to 8.96% [2] Company Actions - The company received a notification from Huasheng Baili regarding the completion of its reduction plan, which has not exceeded the agreed number of shares [2] - The reduction plan was executed within the stipulated time frame, with the total number of shares reduced touching the 1% integer multiple [2]

Core Viewpoint - The company Tongda Co., Ltd. (300321.SZ) has received a notification from Huasheng Baili regarding a reduction in shareholding, indicating a significant change in ownership structure [1] Group 1: Shareholding Changes - Huasheng Baili has reduced its shareholding in Tongda Co., Ltd. by 887,000 shares, which accounts for 1% of the company's total share capital [1] - Following the reduction, Huasheng Baili's ownership percentage decreased from 9.96% to 8.96% [1] - The reduction in shareholding has reached the 1% integer threshold, and the planned reduction period has expired [1]

证券代码：300321 证券简称：同大股份 公告编号：2025-049 山东同大海岛新材料股份有限公司 关于 5%股东权益变动触及 1%整数倍暨减持计划时间届满的公告 本公司及董事会全体成员保证信息披露的内容真实、准确和完整，没有虚 假记载、误导性陈述或重大遗漏。 山东同大海岛新材料股份有限公司（以下简称"公司"）于 2025 年 7 月 31 日在巨潮资讯网披露了《关于持股 5%以上股东及董事减持股份的预披露公告》 （公告编号：2025-009），公司持股 5%以上股东华盛百利投资发展（北京）有 限公司（以下简称"华盛百利"）计划以集中竞价及大宗交易方式减持不超过 2,664,000 股公司股份。其中，在任意连续 90 日内通过交易所集中竞价交易减 持不超过公司总股本的 1%，即 888,000 股；在任意连续 90 日内通过大宗交易减 持不超过公司总股本的 2%，即 1,776,000 股。 一、权益变动触及 1%整数倍的情况说明 今日，公司收到华盛百利出具的《关于权益变动触及 1%整数倍暨减持计划 时间届满的告知函》，华盛百利已通过集中竞价方式累计减持公司股份 88.7 万 股，占公司总股本的 1%，减 ...

关于使用闲置自有资金购买国债逆回购和理财产品的进展公告 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。 证券代码：300321 证券简称：同大股份 公告编号：2025-050 山东同大海岛新材料股份有限公司 山东同大海岛新材料股份有限公司（以下简称"公司"）于 2025 年 9 月 26 日召开的第六届董事会第十三次会议、第六届监事会第十二次会议审议通过了 《关于使用闲置自有资金购买国债逆回购和理财产品的议案》，同意公司使用不 超过人民币 1 亿元的闲置自有资金购买国债逆回购和安全性高、流动性好的低风 险类理财产品，在上述额度内，资金可以滚动使用，授权期限为公司董事会审议 通过本议案之日起 12 个月内有效。具体内容详见公司于 2025 年 9 月 26 日在巨 潮资讯网披露的《第六届董事会第十三次会议决议公告》、《第六届监事会第十 二次会议决议公告》及《关于使用闲置自有资金购买国债逆回购和理财产品的公 告》。 一、使用闲置自有资金购买国债逆回购和理财产品的基本情况 1、2025 年 11 月 21 日，公司使用闲置自有资金人民币 4,000 万元购买了上 海 ...

Group 1 - The stock price of Tongda Co., Ltd. (300321) closed at 47.12 yuan on November 12, 2025, with a slight increase of 0.26% and a turnover rate of 1.82% [1][2] - On November 12, 2025, the net outflow of main funds was 744.37 million yuan, while speculative and retail funds saw net inflows of 500.33 million yuan and 244.04 million yuan, respectively [1][2] Group 2 - On October 15, 2025, Tongda Co., Ltd. used 80 million yuan of idle self-owned funds to purchase government bond reverse repos on the Shanghai Stock Exchange, with the total amount divided into three transactions of 60 million yuan, 10 million yuan, and 10 million yuan, yielding annualized rates of 1.50%, 1.505%, and 1.51% respectively [1][2] - The investments matured on November 12, 2025, and the principal and interest were fully recovered, with the company establishing internal management systems to ensure fund safety [1][2]

Core Points - The stock of Tongda Co., Ltd. (300321) closed at 47.12 yuan on November 12, 2025, with a market capitalization of 4.184 billion yuan, reflecting a 0.26% increase from the previous trading day [1] - The company announced the purchase of government bond reverse repos using idle self-owned funds amounting to 80 million yuan on October 15, 2025, with annualized yields ranging from 1.50% to 1.51% [1] - The internal management system has been established to ensure fund safety, and the transaction will not significantly impact the company's main business or financial status [1] Financial Performance - The stock opened at 46.99 yuan, reached a high of 47.86 yuan, and a low of 46.28 yuan on the same day, with a trading volume of 75.8352 million yuan and a turnover rate of 1.82% [1] Investment Activity - The company engaged in three transactions of government bond reverse repos, with amounts of 60 million yuan, 10 million yuan, and 10 million yuan, all maturing on November 12, 2025 [1]

证券代码：300321 证券简称：同大股份 公告编号：2025-047 山东同大海岛新材料股份有限公司 关于使用闲置自有资金购买国债逆回购的进展公告 2、国债逆回购投资业务在初始成交之时利率即已锁定，收益大小也已确定， 因此在逆回购到期日之间市场利率波动对已发生的交易没有影响。 （二）风险控制措施 1、公司将严格按照《深圳证券交易所上市公司自律监管指引第 2 号——创 业板上市公司规范运作》等有关规定进行国债逆回购。 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。 山东同大海岛新材料股份有限公司（以下简称"公司"）于 2025 年 9 月 26 日召开的第六届董事会第十三次会议、第六届监事会第十二次会议审议通过了 《关于使用闲置自有资金购买国债逆回购和理财产品的议案》，同意公司使用不 超过人民币 1 亿元的闲置自有资金购买国债逆回购和安全性高、流动性好的低风 险类理财产品，在上述额度内，资金可以滚动使用，授权期限为公司董事会审议 通过本议案之日起 12 个月内有效。具体内容详见公司于 2025 年 9 月 26 日在巨 潮资讯网披露的《第六届董事会第十三次会议 ...

Core Insights - The company reported a revenue of 98,157,774.87 yuan for the third quarter of 2025, representing a year-on-year growth of 16.56% [1] - The net profit attributable to shareholders of the listed company was 2,642,736.91 yuan, showing a year-on-year increase of 13.01% [1] Financial Performance - Revenue for Q3 2025: 98.16 million yuan, up 16.56% year-on-year [1] - Net profit for Q3 2025: 2.64 million yuan, up 13.01% year-on-year [1]

Group 1 - The core point of the article is that Tongda Co., Ltd. (SZ 300321) held its 14th meeting of the 6th board of directors on October 22, 2025, to review the proposal for the "2025 Q3 Report" [1] - For the year 2024, the revenue composition of Tongda Co., Ltd. is entirely from the artificial leather industry, accounting for 100.0% [1] - As of the report date, the market capitalization of Tongda Co., Ltd. is 3.8 billion yuan [1]

Core Viewpoint - Tongda Co., Ltd. reported a year-on-year increase in revenue for the first three quarters, but a decline in net profit attributable to shareholders, indicating mixed financial performance [1] Financial Performance - The company's operating revenue for the first three quarters reached 293 million yuan, representing a year-on-year growth of 6.02% [1] - The net profit attributable to shareholders was 11.028 million yuan, showing a year-on-year decrease of 3.8% [1] - The net profit attributable to shareholders after deducting non-recurring gains and losses was 9.9 million yuan, which reflects a year-on-year increase of 12.16% [1]