本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： ● 投资标的名称：公司控股子公司山东胜华国宏新材料有限公司（以下简 称"胜华国宏"）与滕州市天水生物科技有限公司（以下简称"天水生物"）签 订《投资合作协议》，拟在济宁共同投资设立济宁胜盈化工产品贸易有限公司（以 下简称："合资公司"）（最终以工商登记机关核准为准）。 ● 投资金额：合资公司注册资本为人民币 600 万元，胜华国宏认缴人民币 330 万元，持股 55%；天水生物认缴人民币 270 万元，持股 45%。 证券代码：603026 证券简称：石大胜华 公告编号：临 2025-055 石大胜华新材料集团股份有限公司 关于公司控股子公司签订《投资合作协议》的公告 ● 特别风险提示:本次投资项目是公司基于当前市场形势和行业前景，综合 考虑公司现有业务协同效应和战略定位做出的判断，后续如宏观经济、行业政策、 市场环境等情况发生较大变化，存在项目的实际经营状况及盈利能力不及预期的 风险。 石大胜华新材料集团股份有限公司（以下简称"公司"）控股子公司山东胜 华 ...

证券代码：603026 证券简称：石大胜华 公告编号：临 2025-054 石大胜华新材料集团股份有限公司 关于设立公司投资建设 5.3 万吨/年氯化钙项目的 公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 目前该项目尚需按规定至相关行政主管部门办理项目安全、环保等方面的审 批手续，存在因审批未能通过造成的延期建设的风险。 一、对外投资概述 石大胜华新材料集团股份有限公司（以下简称"公司"）拟设立子公司东营 胜华利达科技有限公司（以工商部门核准通过的名称为准），投资建设 5.3 万吨 /年氯化钙项目，项目建设地点为山东省东营市垦利区同兴路 198 号，用地面积 为 5300 ㎡，项目建设期 8 个月，项目总投资 2,500 万元，项目投资的资金来源 为企业自筹资金。 重要内容提示： ● 投资标的名称：5.3 万吨/年氯化钙项目。 ● 投资金额：项目预计投资 2,500 万元。 ● 特别风险提示: 1.政策和市场变化风险 本项目是公司基于当前市场形势和行业前景，综合考虑公司现有业务协同效 应和战略定位做出的判断，后续 ...

（一）本次监事会会议的召开符合有关法律、行政法规、部门规章、规范性 文件和公司章程的规定。 （二）本次监事会会议于 2025 年 8 月 30 日以邮件、电话方式向公司监事会 全体监事发出第八届监事会第十四次会议通知和材料。 （三）本次监事会会议于 2025 年 9 月 4 日以通讯表决方式在山东省东营市 垦利区同兴路 198 号石大胜华办公楼 A326 室召开。 （四）本次监事会应出席的监事 3 人，实际参与表决的监事 3 人。 （五）本次监事会会议由监事会主席高建宏先生主持。 二、监事会会议审议情况 证券代码：603026 证券简称：石大胜华 公告编号：临 2025-053 石大胜华新材料集团股份有限公司 第八届监事会第十四次会议决议公告 本公司监事会及全体监事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 一、监事会会议召开情况 （一）通过《关于使用募集资金置换预先投入募集资金投资项目及已支付发 行费用的自筹资金的议案》。 监事会认为：公司使用募集资金置换预先投入募集资金投资项目和已支付发 行费用的自筹资金的事项履行了必要的审批程序，符 ...

（二）本次董事会会议于 2025 年 8 月 30 日以邮件、电话方式向公司董事会 全体董事发出第八届董事会第二十二次会议通知和材料。 （三）本次董事会会议于 2025 年 9 月 4 日以现场加通讯表决方式在山东省 东营市垦利区同兴路 198 号石大胜华办公楼 A325 室召开。 （四）本次董事会应出席的董事 9 人，实际参与表决的董事 9 人。 （五）本次董事会会议由董事长郭天明先生主持。 证券代码：603026 证券简称：石大胜华 公告编号：临 2025-052 石大胜华新材料集团股份有限公司 第八届董事会第二十二次会议决议公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 一、董事会会议召开情况 （一）本次董事会会议的召开符合有关法律、行政法规、部门规章、规范性 文件和公司章程的规定。 （二）通过《关于公司控股子公司签订<投资合作协议>的议案》。 表决情况： 9 票赞成， 0 票弃权， 0 票反对， 0 票回避。 具体内容详见公司于指定信息披露媒体《中国证券报》《上海证券报》《证 券时报》《证券日报》和上海证券 ...

Core Viewpoint - The company plans to establish a subsidiary, Dongying Shenghua Lida Technology Co., Ltd., to invest in a calcium chloride project with an annual capacity of 53,000 tons, enhancing its influence in the new energy materials sector [1] Group 1: Project Details - The project will be located in Dongying City, Shandong Province, covering an area of 5,300 square meters [1] - The construction period for the project is set at 8 months [1] - The total investment for the project is 25 million yuan, funded through the company's own resources [1] Group 2: Strategic Implications - This initiative is expected to leverage the company's resource advantages in the new energy materials field [1] - The project aims to increase product added value and create new profit growth points [1] - The establishment of the subsidiary is anticipated to enhance the company's influence in the new energy sector [1]

Core Viewpoint - The company plans to establish a subsidiary, Dongying Shenghua Lida Technology Co., Ltd., to invest in a calcium chloride project with an annual capacity of 53,000 tons, with a total investment of 25 million yuan [1] Investment Details - The project will have a construction period of 8 months and is expected to generate an annual output value of 23.5664 million yuan upon reaching full capacity [1] - Once operational, the project is projected to achieve an annual profit of 4.8746 million yuan [1] Strategic Implications - This investment will help the company extend its industrial chain, enhance product added value, and create new profit growth points [1] - The investment does not require approval from the shareholders' meeting and does not constitute a related party transaction or a major asset restructuring [1]

Core Viewpoint - The company Shida Shenghua announced a strategic investment partnership to establish a joint venture aimed at enhancing competitiveness and long-term development [1] Group 1: Investment Details - Shida Shenghua's subsidiary, Shandong Shenghua Guohong New Materials Co., Ltd., signed an investment cooperation agreement with Tengzhou Tianshui Biotechnology Co., Ltd. [1] - The joint venture, named Jining Shengying Chemical Products Trading Co., Ltd., will have a registered capital of RMB 6 million [1] - Shenghua Guohong will contribute RMB 3.3 million, holding a 55% stake, while Tianshui Biotechnology will contribute RMB 2.7 million for a 45% stake [1] Group 2: Strategic Implications - The investment is aimed at enhancing the competitiveness of both parties involved [1] - The company expects that this investment will not have a significant impact on its operating performance for the year 2025 [1]

Meeting Information - The on-site meeting of Shida Shenghua New Materials Group Co., Ltd. is scheduled for September 10, 2025, at 14:00 [1] - The meeting will take place at the company's office located at 198 Tongxing Road, Dongying City, Shandong Province [1] Attendance Requirements - Attendees must arrive 30 minutes before the meeting for registration and present valid identification [2] - Shareholders must submit a speech registration form in advance to speak during the meeting [2] Agenda Items - The meeting will discuss two main proposals: 1. Increasing the estimated amount for daily related transactions 2. Revising the "Management Measures for Raised Funds" [3] Proposal on Daily Related Transactions - The company plans to increase the estimated amount for daily related transactions from 15,000 million to 50,000 million, with a current cumulative transaction amount of 12,500 million [4] - The independent directors and audit committee have reviewed and approved the increase, stating it aligns with legal regulations and does not harm the interests of the company or minority shareholders [4][5] Related Party Information - The related party involved is Qingdao Economic and Technological Development Zone Investment Holding Group Co., Ltd., which is the controlling shareholder of the company [5] - The company maintains a stable cooperative relationship with the related party, and the transactions are necessary for business development [7] Proposal on Fund Management - The second proposal involves revising the "Management Measures for Raised Funds" in accordance with relevant laws and regulations [8]

石大胜华新材料集团股份有限公司 2025 年第四次临时股东大会 目 录 一、程序文件 1. 会议议程 2. 会议须知 二、提交股东大会审议的议案 1.关于增加日常关联交易预计额度的议案 2.关于修订《募集资金管理办法》的议案 1 石大胜华新材料集团股份有限公司 2025 年第四次临时股东大会议程 一、会议时间： 现场会议召开时间：2025 年 9 月 10 日 14:00 通过交易系统投票平台的投票时间为股东大会召开当日的交易时间段，即 9:15-9:25,9:30-11:30，13:00-15:00；通过互联网投票平台的投票时间为股东大会召 开当日的 9:15-15:00 10、宣读会议决议 13、会议结束 2 1、会议开始，介绍参会股东的出席情况 2、宣读大会会议须知 3、大会议案报告 （1）关于增加日常关联交易预计额度的议案 （2）关于修订《募集资金管理办法》的议案 4、股东或股东代表发言，公司董事、监事及高级管理人员回答问题 5、以举手表决方式推举两名股东代表参加监票与计票（审议事项与股东有关联关系 的，相关股东及代理人不得参加计票、监票） 7、宣读现场会议投票结果 8、征询参会股东对现场表决结果是否 ...

Group 1 - The third extraordinary general meeting of shareholders for Shida Shenghua New Materials Group Co., Ltd. was held on August 29, 2025, at the company's office in Dongying, Shandong Province [2] - The meeting was convened by the board of directors and chaired by Chairman Guo Tianming, utilizing a combination of on-site and online voting methods, in compliance with the Company Law and the Articles of Association [2][3] - All directors, supervisors, and the board secretary attended the meeting, ensuring full representation of the company's governance [4] Group 2 - The only resolution discussed was regarding the company's and its subsidiaries' engagement in futures hedging business, which was approved by the shareholders [3] - The voting results for the resolution included a separate count for shareholders holding less than 5% of the shares [3] - The legal opinion provided by the witnessing law firm confirmed that the meeting's procedures and resolutions were in accordance with legal and regulatory requirements [5]