证券日报网讯 8月18日晚间，南亚新材发布公告称，公司股票连续三个交易日内（2025年8月14日、 2025年8月15日、2025年8月18日）收盘价格涨幅偏离值累计达到30%，属于股票交易异常波动情形。经 核实，公司前期披露的信息不存在需要更正、补充之处；公司经查询，未发现近期公共传媒报道了可能 或已经对公司股票交易价格产生较大影响的未公开重大信息；公司近期经营情况及内外部经营环境未发 生重大变化。 （编辑 李家琪） ...

Core Insights - A total of 12 listed companies have disclosed share reduction plans, with no companies announcing share increases on the same day [1] Group 1: Share Reduction Details - Lianming Co., the controlling shareholder plans to reduce no more than 3.00% of the company's shares [2] - Geng Shanghai's shareholder Huijia Chuangtou intends to reduce no more than 1% of the company's shares [2] - Jinhui Co.'s shareholder Green Mine Fund plans to reduce no more than 3% of the company's shares [2] - Wanlang Magnetic Plastic's shareholder Ouyang Ruiqun intends to reduce no more than 2% of the company's shares [2] - Maipu Medical's Guoshou Chengda has cumulatively reduced 2.9958% of the company's shares [2] - Nanya New Materials' directors, including Zhang Dong, have reduced their shares [2] - Maihe Co.'s shareholder Wang Xuping plans to reduce no more than 150,000 shares [2] - Jujia Optoelectronics' actual controller and chairman Pan Huarong intends to reduce no more than 1% of the company's shares [2] - Huashu Media's Zhejiang Yitong Media plans to reduce no more than 1% of the company's shares [2] - Haizhu Co.'s shareholders Park Huahui and Zhongwen Chantu plan to collectively reduce no more than 5.36% of the company's shares [2] - Zhonghuan Environmental Protection's Jintong Anyi intends to reduce no more than 3.55% of the company's shares [2] - Haichuan Intelligent's shareholders Wu Guifang and Zheng Xuefen plan to collectively reduce no more than 6% of the company's shares [2]

Summary of Key Points Core Viewpoint - As of August 18, a total of 12 listed companies have disclosed share reduction plans, with no companies announcing share increases on the same day [1]. Group 1: Companies with Share Reduction Plans - Lianming Co., Ltd. plans to reduce its holdings by up to 3.00% of the company's shares [2]. - Xishanghai's shareholder Huijia Chuangtou intends to reduce its stake by no more than 1% [2]. - Jinhui Co., Ltd.'s shareholder Green Mining Fund plans to reduce its holdings by up to 3% [2]. - Wanlang Magnetic Plastic's shareholder Ouyang Ruiqun intends to reduce its stake by no more than 2% [2]. - Maipu Medical's shareholder Guoshou Chengda has cumulatively reduced its holdings by 2.9958% [2]. - Nanya New Materials' board member Zhang Dong and others are reducing their shares [2]. - Maihe Co., Ltd.'s shareholder Wang Xuping plans to reduce up to 150,000 shares [2]. - Juzan Optoelectronics' actual controller and chairman Pan Huarong intends to reduce no more than 1% of the company's shares [2]. - Huashu Media's Zhejiang Yitong Media plans to reduce its stake by no more than 1% [2]. - Haikan Co., Ltd.'s shareholders Park Huahui and Zhongwen Chantu plan to collectively reduce up to 5.36% [2]. - Zhonghuan Environmental's Jintong Anyi intends to reduce its holdings by no more than 3.55% [2]. - Haichuan Intelligent's shareholders Wu Guifang and Zheng Xuefen plan to collectively reduce up to 6% [2].

Group 1 - The company, Nanya New Materials, announced that its production and operational status is normal, with no significant changes [1] - The market environment and industry policies have not undergone major adjustments, and product research, production, and sales are progressing normally [1] - As of the announcement date, the company and its controlling shareholders do not have any major matters in planning, such as mergers, restructuring, or asset injections [1]

证券代码：688519 证券简称：南亚新材 公告编号：2025-061 南亚新材料科技股份有限公司 股票交易异常波动公告 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。 南亚新材料科技股份有限公司（以下简称"公司"）股票连续三个交易 日内（2025 年 8 月 14 日、2025 年 8 月 15 日、2025 年 8 月 18 日）收盘价格涨 幅偏离值累计达到 30%，根据《上海证券交易所交易规则》《上海证券交易所科 创板股票异常交易实时监控细则》的有关规定，属于股票交易异常波动情形。 经公司自查，并向公司控股股东及实际控制人发函查证，截至本公告披 露日，公司、控股股东及实际控制人不存在影响公司股票交易异常波动的重大事 项，亦不存在其他应披露而未披露的重大信息。 公司股价短期波动幅度较大，敬请广大投资者注意二级市场交易风险， 审慎决策，理性投资。 一、股票交易异常波动的具体情况 公司股票交易于 2025 年 8 月 14 日、2025 年 8 月 15 日、2025 年 8 月 18 日 连续 3 个交易日内日收盘价格涨幅偏 ...

证券代码：688519 证券简称：南亚新材 公告编号：2025-060 南亚新材料科技股份有限公司 董事、监事集中竞价减持股份计划完成暨减持结果 公告 本公司董事会、全体董事及相关股东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、准确性和完整性依法承担法律 责任。 重要内容提示： 大股东及董监高持有的基本情况 本次减持计划实施前，南亚新材料科技股份有限公司（以下简称"公司"） 董事张东先生直接持有公司股份 1,675,665 股，通过上海南亚科技集团有限公司 间接持有公司股份 6,955,500 股（四舍五入取整），合计持有公司股份 8,631,165 股，占公司总股本的 3.619%； 董事郑晓远先生直接持有公司股份 2,413,910 股，通过上海南亚科技集团有 限公司间接持有公司股份 8,654,144 股（四舍五入取整），合计持有公司股份 11,068,054 股，占公司总股本的 4.641%； 董事耿洪斌先生直接持有公司股份 1,377,620 股，通过上海南亚科技集团有 限公司间接持有公司股份 5,116,716 股（四舍五入取整），合计持有公司股份 6,494, ...

Core Viewpoint - The stock of South Asia New Materials has experienced an abnormal fluctuation, with a cumulative closing price increase of 30% over three trading days, prompting an investigation into the reasons behind this volatility [1] Company Operations - The company has confirmed that its production and operational status is normal, with no significant changes affecting the stock's trading behavior [1] - There are no undisclosed major events or information that could impact the company's stock performance [1] Shareholder Activity - Several board members have reduced their holdings, with specific reductions as follows: - Zhang Dong: 30,000 shares - Zheng Xiaoyuan: 39,215 shares - Geng Hongbin: 90,000 shares - Cui Ronghua: 96,600 shares - The company supervisor, Chen Xiaodong, has also reduced his holdings by 4,400 shares [1]

Core Insights - The top three stocks with net institutional purchases on August 18 are Zhinan Zhen, Dazhihui, and Tenglong Co., with net purchases of 385 million, 234 million, and 227 million respectively [1][2] - A total of 44 stocks appeared on the trading list, with 23 showing net institutional purchases and 21 showing net institutional sales [1] - The top three stocks with net institutional sales are Quzhou Development, Yingweike, and Nanya New Materials, with net outflows of 703 million, 241 million, and 151 million respectively [1][4] Institutional Purchases - Zhinan Zhen had a price increase of 14.64% with a net institutional purchase of 385.02 million [2] - Dazhihui saw a price increase of 10.03% with a net institutional purchase of 233.88 million [2] - Tenglong Co. experienced a price increase of 3.82% with a net institutional purchase of 227.44 million [2] Institutional Sales - Quzhou Development had a price decrease of 2.55% with a net institutional sale of 703 million [4] - Yingweike experienced a price increase of 10.00% but had a significant net institutional sale of 241 million [4] - Nanya New Materials saw a price increase of 20.00% but faced a net institutional sale of 151 million [4]

Market Performance - The component sector increased by 1.99% on August 18, with Jing Sai Technology leading the gains [1] - The Shanghai Composite Index closed at 3728.03, up 0.85%, while the Shenzhen Component Index closed at 11835.57, up 1.73% [1] Top Gainers - Jing Sai Technology (871981) closed at 46.56, up 29.98% with a trading volume of 94,900 shares and a transaction value of 415 million [1] - Nanya New Materials (688519) closed at 65.17, up 20.00% with a trading volume of 166,400 shares and a transaction value of 1.061 billion [1] - Yuan Diwei (832491) closed at 33.80, up 14.97% with a trading volume of 212,400 shares [1] Other Notable Performers - Zhongfu Circuit (300814) closed at 50.65, up 10.37% with a trading volume of 330,800 shares and a transaction value of 1.668 billion [1] - Fangzheng Technology (600601) closed at 7.43, up 10.07% with a trading volume of 4.1409 million shares and a transaction value of 3.031 billion [1] Market Capital Flow - The component sector saw a net inflow of 688 million from institutional investors, while retail investors experienced a net outflow of 1.012 billion [2][3] - The top stocks by net inflow from institutional investors included Shengyi Technology (600183) with a net inflow of 2.53 billion [3] Decliners - ST Dongjing (002199) closed at 10.18, down 3.78% with a trading volume of 93,500 shares [2] - Aoshikang (002913) closed at 38.81, down 2.04% with a trading volume of 87,600 shares [2]

Group 1 - The A-share market experienced a strong upward trend on August 18, with the Shanghai Composite Index reaching a nearly 10-year high [1] - The STAR Market Composite Index ETF by Huatai-PB rose by 1.94%, indicating positive market sentiment [1] - The STAR Market Composite Index itself surged by 2.08%, with notable gains from constituent stocks such as Nanxin Pharmaceutical and Shunlian Bio, both increasing by over 20% [1] Group 2 - As of August 18, 2025, the top ten constituent stocks of the STAR Market ETF include companies like Saiwei Technology and Haiguang Information, with varying performance in terms of price changes and trading volumes [2] - The semiconductor industry in China saw a total investment of 455 billion yuan in the first half of 2025, reflecting a 9.8% year-on-year decline, while semiconductor equipment investment grew by 53.4%, highlighting a strategic focus on supply chain autonomy [3] - Major global tech companies are significantly increasing their capital expenditures for AI infrastructure, with Microsoft planning to spend $88.2 billion in the 2025 fiscal year, followed by Google and Meta with substantial increases as well [3][4]