Core Viewpoint - The non-metal materials sector experienced a 2.2% increase on October 20, with significant gains led by Lili Diamond, while the Shanghai Composite Index rose by 0.63% and the Shenzhen Component Index increased by 0.98% [1] Group 1: Market Performance - The closing price of Lili Diamond was 48.22, reflecting an 18.71% increase, with a trading volume of 412,700 shares and a transaction value of 1.831 billion [1] - Other notable performers included Dongfang Shuo Yuan, which closed at 13.33 with a 10.53% increase, and Ningxin New Materials, which closed at 15.29 with a 5.74% increase [1] - The overall trading volume and transaction values for various stocks in the non-metal materials sector were significant, indicating active market participation [1] Group 2: Capital Flow - The non-metal materials sector saw a net outflow of 56.12 million from institutional investors, while retail investors contributed a net inflow of 27.20 million [2] - The capital flow data indicates that while institutional investors withdrew funds, retail investors were actively buying into the sector [2] Group 3: Individual Stock Capital Flow - Lili Diamond experienced a net outflow of 12.36 million from institutional investors, but had a net inflow of 460.75 million from retail investors [3] - In contrast, Longgao Co. saw a net outflow of 4.76 million from institutional investors, with retail investors contributing a net inflow of 361.27 million [3] - The data highlights varying investor sentiment across different stocks within the non-metal materials sector, with some stocks attracting retail interest despite institutional withdrawals [3]

Core Viewpoint - The stock of Suotong Development (603612.SH) experienced a decline of 4.26%, reaching a price of 24.25 yuan, following the announcement of a significant share reduction by key stakeholders [1] Shareholding Changes - Mr. Lang Guanghui and Xuan Yuan Ke Xin 182 plan to reduce their holdings by a total of 7,965,500 unrestricted circulating shares between September 5, 2025, and October 17, 2025 [1] - The combined shareholding percentage of Mr. Lang Guanghui and his concerted parties decreased from 27.89% to 26.29%, marking a change that touches the 1% threshold [1]

Core Viewpoint - The announcement details a change in shareholder equity for Suotong Development Co., Ltd., indicating a reduction in shareholding by the controlling shareholder and associated parties, which has reached a 1% threshold [2][3]. Group 1: Shareholder Information - The controlling shareholder, Mr. Lang Guanghui, and his associated party, Xuan Yuan Private Fund Investment Management (Guangdong) Co., Ltd. - Xuan Yuan Ke Xin No. 182 Private Securities Investment Fund, have provided accurate and complete information regarding their shareholding changes [2]. - The shareholding percentage of Mr. Lang and his associated parties decreased from 27.89% to 26.29% after the reduction of 7,965,500 shares from September 5, 2025, to October 17, 2025 [2][4]. Group 2: Equity Change Details - The reduction in shareholding does not trigger a mandatory tender offer and aligns with previously disclosed plans and commitments by the shareholders [2][3]. - The change in equity will not result in a change of control for the company and will not significantly impact the company's governance structure or ongoing operations [2][3]. Group 3: Compliance and Disclosure - The equity change complies with relevant laws and regulations, including the Securities Law of the People's Republic of China and the Shanghai Stock Exchange listing rules [3]. - As of the announcement date, the share reduction plan has not been fully executed, and the company will continue to monitor the progress and disclose any changes as required [4].

关于股东权益变动触及 1%刻度的提示性公告 郎光辉及其一致行动人王萍、玄元私募基金投资管理（广东）有限公司－玄 元科新 182 号私募证券投资基金保证向本公司提供的信息真实、准确、完整，没 有虚假记载、误导性陈述或重大遗漏。 本公司董事会及全体董事保证公告内容与信息披露义务人提供的信息一致。 重要内容提示： | 权益变动方向 | 比例增加□ | 比例减少 | | --- | --- | --- | | 权益变动前合计比例 | 27.89% | | | 权益变动后合计比例 | 26.29% | | | 本次变动是否违反已作出的承诺、意向、计划 | 是□ 否 | | | 是否触发强制要约收购义务 | 是□ 否 | | 证券代码：603612 证券简称：索通发展 公告编号：2025-056 索通发展股份有限公司 一、 信息披露义务人及其一致行动人的基本信息 1.身份类别 | | 控股股东/实际控制人及其一致行动人 | | --- | --- | | | □其他 5%以上大股东及其一致行动人 | | 投资者及其一致行动人的身份 | □合并口径第一大股东及其一致行动人（仅适用 | | | 于无控股股东、实际控制 ...

格隆汇10月17日丨索通发展(603612.SH)公布，公司于2025年10月17日收到公司控股股东、实际控制人 郎光辉先生及其一致行动人玄元私募基金投资管理（广东）有限公司－玄元科新182号私募证券投资基 金（以下简称"玄元科新182号"）发来的《关于股东权益变动触及1%刻度的告知函》，郎光辉先生及玄 元科新182号于2025年9月5日至2025年10月17日期间，通过集中竞价、大宗交易的方式，合计减持公司 无限售流通股796.55万股，郎光辉先生及其一致行动人合计持有公司股份比例由27.89%减少至26.29%， 权益变动触及1%刻度。 ...

| 胶禁垫五信息 交易日期 | 证券商标 | 证券代码 | 成交价(元) 成交金额(万元) 成交量( * ) 买入营业部 | | | | 卖出营业部 | 是否为专场 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 2025-10-17 | 索通发展 | 603612 | 24.32 1397.43 | 57.46 | 机构专用 | 買得到最後整備 | | 종 | 10月17日，索通发展大宗交易成交57.46万股，成交额1397.43万元，占当日总成交额的1.3%，成交价 24.32元，较市场收盘价25.33元折价3.99%。 ...

Market Overview - The non-metal materials sector experienced a decline of 4.54% on October 17, with Tianma New Materials leading the drop [1] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Individual Stock Performance - Tianma New Materials (code: 920971) closed at 36.72, down 9.11% with a trading volume of 56,700 shares and a transaction value of 219 million [1] - Strength Diamond (code: 301071) closed at 40.62, down 7.58% with a trading volume of 263,700 shares and a transaction value of 1.086 billion [1] - Quartz Shares (code: 603688) closed at 38.21, down 7.05% with a trading volume of 199,300 shares and a transaction value of 779 million [1] - Other notable declines include Lianrui New Materials (down 5.62%), Ningxin New Materials (down 3.15%), and Changjiang Materials (down 2.11%) [1] Capital Flow Analysis - The non-metal materials sector saw a net outflow of 225 million from main funds, while retail investors contributed a net inflow of 188 million [1] - The capital flow for individual stocks indicates that Longgao Co. (code: 605086) had a main fund net inflow of 7.38 million, while other stocks like Strength Diamond and Quartz Shares experienced significant net outflows of 56.80 million and 87.06 million respectively [2]

Market Overview - The A-share market opened lower with all three major indices declining: Shanghai Composite Index down 0.11%, Shenzhen Component Index down 0.2%, and ChiNext Index down 0.36% [1] Sector Performance - Gold stocks opened higher, with Baoding Technology hitting the daily limit, and Western Gold and Sichuan Gold rising over 4%. Spot gold prices reached a new high of $4,380 in early trading [1] - The graphite electrode sector saw initial gains, with Suotong Development increasing over 6%, and Xiangfenghua and Shangtai Technology rising over 3% [1] - The innovative drug sector remained active, with Huabang Health rising over 6%, and Aosaikang and Yifang Bio increasing over 4% [1] - The cultivated diamond sector experienced a correction, with Strength Diamond falling over 5%, and Chuanjiang New Material and Yellow River Windfall dropping over 4% [1]

证券代码：603612 证券简称：索通发展 公告编号：2025-054 索通发展股份有限公司 2025年第四次临时股东会决议公告 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法律责任。 重要内容提示： ■ （四）表决方式是否符合《公司法》及《公司章程》的规定，会议主持情况等。 本次会议由董事会召集，由董事长郎光辉先生主持。会议采用现场投票和网络投票相结合的表决方式。 本次股东会的召集、召开及表决方式符合《公司法》《上市公司股东会规则》《上海证券交易所上市公 司自律监管指南第2号一一业务办理：第四号一一股东会网络投票》等法律法规及《公司章程》的规 定。 （五）公司董事、监事和董事会秘书的出席情况 二、议案审议情况 ■ 2、议案名称：关于修订公司部分治理制度的议案 2.01议案名称：《股东会议事规则》 审议结果：通过 ● 本次会议是否有否决议案：无 一、会议召开和出席情况 （一）股东会召开的时间：2025年10月16日 （二）股东会召开的地点：北京市朝阳区安定路中建财富国际中心15层 （三）出席会议的普通股股东和恢复表决权的优先股股东及其 ...

（文章来源：证券日报） 证券日报网讯 10月16日晚间，索通发展发布公告称，公司于2025年10月16日召开职工代表大会2025年 第一次会议，选举范本勇先生为公司第五届董事会职工代表董事。 ...