每经AI快讯，9月21日，瑞丰高材（300243）(300243.SZ)公告称，持股5%以上股东桑培洲计划自公告披 露之日起十五个交易日后的三个月内以集中竞价方式减持公司股份合计不超过240万股，占公司总股本 的0.9584%。减持原因为个人资金需求，减持股份来源为首次公开发行前发行的股份。 ...

Core Viewpoint - The major shareholder of Ruifeng High Materials, Mr. Sang Peizhou, plans to reduce his stake in the company by selling up to 2.4 million shares, which represents approximately 0.9584% of the total share capital within three months after the announcement [1] Group 1 - The share reduction will be conducted through centralized bidding [1] - The planned reduction will take place within a timeframe of three months starting from fifteen trading days after the announcement [1]

| 证券代码：300243 | 证券简称：瑞丰高材 | 公告编号：2025-042 | | --- | --- | --- | | 债券代码：123126 | 债券简称：瑞丰转债 | | 山东瑞丰高分子材料股份有限公司 关于持股 5%以上股东股份减持计划的预披露公告 一、减持主体的基本情况 1、减持股东名称：桑培洲 2、减持股东持股情况：截至本公告日，桑培洲先生持有公司股份 13,011,240 股，占公司总股本比例为 5.1956%。 二、本次减持计划的主要内容 1、减持原因：个人资金需求 持股 5%以上股东桑培洲先生保证向本公司提供的信息内容真实、准确、完整， 没有虚假记载、误导性陈述或重大遗漏。 本公司及董事会全体成员保证公告内容与信息披露义务人提供的信息一致。 特别提示： 持有本公司股份 13,011,240 股（占本公司总股本比例 5.1956%）的大股东桑 培洲先生，计划自本公告披露之日起十五个交易日后的三个月内以集中竞价方式 减持本公司股份合计不超过 2,400,000 股，占本公司总股本的 0.9584%。 山东瑞丰高分子材料股份有限公司（以下简称"公司"）近日收到持股 5% 以上股东桑培洲先 ...

Group 1 - The major shareholder, Mr. Sang Peizhou, plans to reduce his stake in Ruifeng High Materials by up to 2.4 million shares, representing approximately 0.9584% of the total share capital, within three months after the announcement [1] - As of the report, Ruifeng High Materials has a market capitalization of 2.8 billion yuan [1] - The revenue composition for Ruifeng High Materials in 2024 is as follows: PVC additives account for 94.35%, engineering plastic additives for 5.33%, and others for 0.31% [1]

Core Viewpoint - The stock of Ruifeng High Materials has experienced fluctuations, with a recent decline of 2.03% and a year-to-date increase of 22.39%, indicating volatility in its market performance [1][2]. Financial Performance - For the first half of 2025, Ruifeng High Materials reported a revenue of 1.006 billion yuan, representing a year-on-year growth of 2.62%. However, the net profit attributable to shareholders decreased by 52.57% to 10.8048 million yuan [2]. - The company has distributed a total of 171 million yuan in dividends since its A-share listing, with 37.5633 million yuan distributed over the past three years [3]. Stock Market Activity - As of September 17, the stock price was 11.59 yuan per share, with a market capitalization of 2.902 billion yuan. The trading volume was 56.3312 million yuan, with a turnover rate of 2.47% [1]. - The net outflow of main funds was 542,600 yuan, with significant buying and selling activity from large orders [1]. Shareholder Information - As of August 29, the number of shareholders decreased to 17,800, a reduction of 7.74%, while the average circulating shares per person increased by 8.39% to 10,923 shares [2]. Business Overview - Ruifeng High Materials, established on October 26, 2001, and listed on July 12, 2011, specializes in the research, production, and sales of ACR processing aids, MBS impact modifiers, and MC impact modifiers. The revenue composition includes ACR aids (45.48%), MBS impact modifiers (38.40%), MC impact modifiers (8.97%), engineering plastic aids (6.68%), and others (0.47%) [1].

中信证券股份有限公司 关于山东瑞丰高分子材料股份有限公司 2025年半年度跟踪报告 | 保荐人名称：中信证券股份有限公司 | 被保荐公司简称：瑞丰高材（300243.SZ） | | --- | --- | | 保荐代表人姓名：李建 | 联系电话：010-60838192 | | 保荐代表人姓名：康恒溢 | 联系电话：010-60834151 | 一、保荐工作概述 | 项目 | 工作内容 | | --- | --- | | 1.公司信息披露审阅情况 | | | （1）是否及时审阅公司信息披露文件 | 是 | | （2）未及时审阅公司信息披露文件的次数 | 无 | | 2．督导公司建立健全并有效执行规章制度的情 | | | 况 | | | （1）是否督导公司建立健全规章制度（包括但 不限于防止关联方占用公司资源的制度、募集资 金管理制度、内控制度、内部审计制度、关联交 | 是 | | 易制度） | | | （2）公司是否有效执行相关规章制度 | 是 | | 3.募集资金监督情况 | | | （1）查询公司募集资金专户次数 | 0次，募集资金专户已于2024年全部注销 | | （2）公司募集资金项目进展是否与信息披 ...

Group 1 - The company, Ruifeng High Materials (300243), reported that as of August 29, 2025, the total number of shareholders is 17,807 [1]

Core Viewpoint - Ruifeng High Materials (300243) is currently in the ton-level pilot test stage for its subsidiary Ruifeng Yueneng's black phosphorus product development, which will not significantly impact this year's performance [1] Group 1 - The company is focused on the research and low-cost industrialization of black phosphorus products [1] - The current stage of development is at the ton-level pilot testing phase [1] - The performance impact for the current year is expected to be minimal [1]

Group 1 - The core viewpoint of the article is that Ruifeng High Materials (300243) is advancing its black phosphorus pilot production facility, which is expected to be operational by the end of September [1] - The pilot facility's technology and core equipment are independently designed by the company, utilizing proprietary non-patented technology [1] - The company's battery binder SBR products are currently undergoing testing with some downstream customers, aiming to enhance product quality and performance indicators [1] Group 2 - The new business initiatives are still in the early stages of industrialization, which may face uncertainties related to construction, research and development progress, and market promotion [1]

Group 1 - The company is currently in the ton-level pilot testing stage for its black phosphorus products, which will not significantly impact this year's performance [2] - The company's subsidiary, Ruifeng Yuanneng, is primarily engaged in the research and development of black phosphorus products and related low-cost industrialization [2]