来源：新浪证券-红岸工作室 12月11日，美埃科技涨2.20%，成交额8793.79万元，换手率1.35%，总市值65.31亿元。 异动分析 光刻机+中芯国际概念+芯片概念+PM2.5 1、公司上市保荐书：公司为上海微电子装备（集团）股份有限公司开发国内首台 28 纳米光刻设备工艺 制程所需的机台内国际最高洁净等级标准（ISO Class 1 级）洁净环境提供 EFU （超薄型设备端自带风 机过滤机组）及 ULPA（超高效过滤器）等产品，亦已验收合格，助力国内光刻机事业突破卡脖子技术 难题。此外，在海外市场，公司系Intel、 ST Microelectronics 等国际半导体厂商的合格供应商，为其提 供空气净化产品。公司在前述产品核心技术指标、客户信赖度等方面，可与国际品牌平行竞争，处于国 内品牌领先的地位。 2、据招股说明书：公司长期为中芯国际供应 FFU、高效/超高效过滤器、化学过滤器等产品，用于保障 中芯国际系的历代产品线（包括中芯国际最先进的 14nm和 28nm 制程）对空气洁净度的要求。 3、美埃(中国)环境科技股份有限公司主营业务系空气净化产品、大气环境治理产品的研发、生产及销 售。公司主要 ...

Core Viewpoint - The company Meai (China) Environmental Technology Co., Ltd. is a leading domestic brand in the air purification and environmental governance sector, focusing on high-efficiency air purification products and solutions for semiconductor manufacturing [2][3]. Company Overview - Meai specializes in the research, production, and sales of air purification products and atmospheric environmental governance products, with its main products including fan filter units, filters, and air purification equipment [3][7]. - The company was recognized as a national-level "specialized, refined, and innovative" small giant by the end of 2021, establishing itself as a leader in cleanroom equipment for the semiconductor industry in China [3][7]. - As of September 30, 2025, Meai achieved a revenue of 1.486 billion yuan, representing a year-on-year growth of 23.64%, while the net profit attributable to shareholders was 141 million yuan, a decrease of 5.17% year-on-year [7][8]. Market Position and Products - The company has developed the first domestic 28nm lithography equipment and provides products that meet the highest international cleanliness standards (ISO Class 1) for semiconductor manufacturing [2]. - Meai is a qualified supplier for international semiconductor manufacturers such as Intel and ST Microelectronics, indicating its competitive position in the market [2]. - The company has long supplied products to SMIC (Semiconductor Manufacturing International Corporation) to meet the air cleanliness requirements for advanced manufacturing processes, including 14nm and 28nm nodes [2][3]. Financial Performance - The company's stock experienced a decline of 1.05% on December 4, with a trading volume of 56.1534 million yuan and a market capitalization of 6.249 billion yuan [1]. - The average trading cost of the stock is 47.59 yuan, with recent trading activity indicating a lack of strong accumulation or distribution trends [5][6]. Shareholder Information - As of September 30, 2025, the number of shareholders increased by 36.07% to 5,817, while the average circulating shares per person decreased by 26.51% [7]. - The company has distributed a total of 80.64 million yuan in dividends since its A-share listing [9].

Core Points - The stock price of Longking Environmental Protection has decreased by 2.02% on November 28, trading at 15.49 CNY per share with a market capitalization of 19.673 billion CNY [1] - The company has seen a year-to-date stock price increase of 25.22%, with a recent 5-day increase of 1.18%, a 20-day decrease of 8.07%, and a 60-day increase of 24.42% [1] - Longking Environmental Protection's main business includes dust removal, desulfurization, denitrification, material transportation, desulfurization operation, and power plant engineering contracting [1] Financial Performance - For the period from January to September 2025, Longking Environmental Protection achieved operating revenue of 7.858 billion CNY, representing a year-on-year growth of 18.09%, and a net profit attributable to shareholders of 780 million CNY, up 20.53% year-on-year [2] - The company has distributed a total of 3.184 billion CNY in dividends since its A-share listing, with 763 million CNY distributed over the past three years [3] Shareholder Information - As of September 30, 2025, the number of shareholders of Longking Environmental Protection is 44,400, with an average of 28,630 circulating shares per person [2] - Notable changes in institutional holdings include a decrease of 11.7526 million shares held by Guangfa Multi-Factor Mixed Fund, while Hong Kong Central Clearing Limited has entered as a new major shareholder with 10.8506 million shares [3]

Core Viewpoint - The stock of 聚光科技 (Juguang Technology) has experienced fluctuations, with a recent decline of 2.06% and a total market capitalization of 6.825 billion yuan. The company has faced a decrease in revenue and profit in the first nine months of 2025 compared to the previous year [1][2]. Financial Performance - As of September 30, 2025, 聚光科技 reported a revenue of 2.05 billion yuan, a year-on-year decrease of 11.10% [2]. - The net profit attributable to shareholders was -62.34 million yuan, representing a significant year-on-year decrease of 152.98% [2]. - The company has cumulatively distributed 630 million yuan in dividends since its A-share listing, with 112 million yuan distributed in the last three years [3]. Stock Market Activity - On November 28, 2025, 聚光科技's stock price was 15.21 yuan per share, with a trading volume of 51.77 million yuan and a turnover rate of 0.75% [1]. - The stock has increased by 1.54% year-to-date, but has seen a decline of 8.37% over the past 20 days and 28.12% over the past 60 days [1]. - The company has appeared on the龙虎榜 (top trading list) once this year, with the last occurrence on April 9 [1]. Shareholder Information - As of September 30, 2025, the number of shareholders increased by 13.30% to 23,000, while the average number of circulating shares per person decreased by 11.74% to 19,483 shares [2]. - The top three circulating shareholders include Hong Kong Central Clearing Limited, which reduced its holdings by 5.19 million shares, and 睿远成长价值混合A, which increased its holdings by 2.42 million shares [3].

Core Viewpoint - Lihe Technology's stock price has shown fluctuations, with a year-to-date increase of 16.61% but a recent decline over the past five days by 4.47% [1] Group 1: Stock Performance - On November 25, Lihe Technology's stock rose by 2.04%, reaching a price of 11.98 CNY per share, with a trading volume of 11.03 million CNY and a turnover rate of 0.40% [1] - The company's total market capitalization is 2.836 billion CNY [1] - Year-to-date, the stock has increased by 16.61%, but it has decreased by 4.47% over the last five trading days, 1.16% over the last 20 days, and 3.85% over the last 60 days [1] Group 2: Financial Performance - For the period from January to September 2025, Lihe Technology achieved operating revenue of 558 million CNY, representing a year-on-year growth of 5.15% [2] - The net profit attributable to shareholders for the same period was 21.99 million CNY, reflecting a year-on-year increase of 2.18% [2] - Since its A-share listing, the company has distributed a total of 229 million CNY in dividends, with 115 million CNY distributed over the past three years [2] Group 3: Shareholder Information - As of September 30, 2025, the number of Lihe Technology's shareholders is 11,100, a decrease of 10.72% from the previous period [2] - The average number of circulating shares per shareholder is 21,057, which has increased by 11.97% compared to the previous period [2] - Notably, the eighth largest circulating shareholder is Nuoan Multi-Strategy Mixed A (320016), which holds 1.2529 million shares as a new shareholder [2] Group 4: Company Overview - Lihe Technology (Hunan) Co., Ltd. is located in Changsha High-tech Zone, Hunan Province, and was established on May 29, 1997, with its listing date on November 6, 2019 [1] - The company's main business includes the research, production, sales, and operation services of environmental monitoring systems [1] - The revenue composition of the main business is as follows: operation services 60.17%, environmental monitoring systems 35.51%, others 3.52%, and software development 0.80% [1]

Core Viewpoint - The stock price of Farsen has experienced fluctuations, with a year-to-date increase of 42.27% but a recent decline of 7.20% over the past five trading days [2] Group 1: Stock Performance - As of November 20, Farsen's stock price was 4.51 CNY per share, with a market capitalization of 1.892 billion CNY [1] - The stock has seen a trading volume of 28.79 million CNY and a turnover rate of 1.49% [1] - Year-to-date, Farsen's stock has risen by 42.27%, but it has dropped by 7.20% in the last five trading days and 5.85% in the last twenty days [2] Group 2: Financial Performance - For the period from January to September 2025, Farsen reported operating revenue of 205 million CNY, a decrease of 24.06% year-on-year [2] - The net profit attributable to the parent company was -22.77 million CNY, an increase of 44.95% year-on-year [2] Group 3: Shareholder Information - As of November 10, the number of shareholders for Farsen was 30,000, a decrease of 5.63% from the previous period [2] - The average number of circulating shares per shareholder increased by 5.97% to 13,995 shares [2] Group 4: Business Overview - Farsen, established on June 30, 1993, and listed on January 19, 1999, is located in Jiangyin, Jiangsu Province [2] - The company primarily engages in the production and sale of various types of steel wire and wire rope products, with 86.14% of its revenue coming from metal products and 13.86% from environmental protection business [2] - Farsen is classified under the environmental protection industry, specifically in the environmental equipment sector [2]

Core Points - The stock price of Farsen has decreased by 2.04% on November 18, trading at 4.79 CNY per share with a market capitalization of 2.009 billion CNY [1] - Year-to-date, Farsen's stock price has increased by 51.10%, but it has seen a decline of 1.84% in the last five trading days and 1.24% in the last twenty days [1] - Farsen's main business involves the production and sale of various steel wire and wire rope products, with 86.14% of revenue coming from metal products and 13.86% from environmental protection services [1] Financial Performance - As of November 10, Farsen has 30,000 shareholders, a decrease of 5.63% from the previous period, with an average of 13,995 circulating shares per shareholder, an increase of 5.97% [2] - For the period from January to September 2025, Farsen reported operating revenue of 205 million CNY, a year-on-year decrease of 24.06%, while the net profit attributable to shareholders was -22.7654 million CNY, an increase of 44.95% year-on-year [2] Dividend Information - Since its A-share listing, Farsen has distributed a total of 232 million CNY in dividends, with no dividends paid in the last three years [3]

Core Viewpoint - The company Meai Technology (美埃科技) is experiencing fluctuations in stock performance, with a recent decline of 1.84% and a total market capitalization of 6.385 billion yuan, while also being recognized as a leader in the domestic semiconductor cleanroom equipment sector [1][3]. Company Overview - Meai Technology specializes in the research, production, and sales of air purification products and atmospheric environmental governance products, with a primary revenue source from cleanroom air filtration and clean wall systems, accounting for 90.18% of total revenue [3][7]. - The company was awarded the national-level "specialized, refined, distinctive, and innovative" title at the end of 2021, solidifying its position as a leading domestic enterprise in the semiconductor cleanroom equipment market [3][7]. Financial Performance - For the period from January to September 2025, Meai Technology reported a revenue of 1.486 billion yuan, representing a year-on-year growth of 23.64%, while the net profit attributable to shareholders decreased by 5.17% to 141 million yuan [7][8]. - The company has distributed a total of 80.64 million yuan in dividends since its A-share listing [9]. Market Position and Supply Chain - Meai Technology has developed the first domestic 28nm lithography equipment and provides essential air purification products to major international semiconductor manufacturers such as Intel and ST Microelectronics, indicating its competitive standing in both domestic and international markets [2][3]. - The company has a long-term supply relationship with SMIC (中芯国际), providing various air filtration products necessary for maintaining the required air cleanliness standards for advanced semiconductor manufacturing processes [2][3]. Stock and Trading Analysis - The stock has seen a net inflow of 2.71 million yuan today, with a trading volume of 145 million yuan and a turnover rate of 5.84%, indicating a relatively low level of trading activity [1][4]. - The average trading cost of the stock is 48.37 yuan, with the current price approaching a support level of 47.50 yuan, suggesting potential volatility in the near term [6].

Core Viewpoint - Longking Environmental experienced a stock price decline of 2.15% on November 14, with a current price of 15.96 CNY per share and a market capitalization of 20.27 billion CNY [1] Company Performance - Longking Environmental's stock price has increased by 29.02% year-to-date, but has decreased by 6.39% over the last five trading days. The stock has seen a 5.63% increase over the past 20 days and a 28.50% increase over the past 60 days [2] - For the period from January to September 2025, Longking Environmental reported revenue of 7.858 billion CNY, representing a year-on-year growth of 18.09%. The net profit attributable to shareholders was 780 million CNY, reflecting a year-on-year increase of 20.53% [2] Business Segments - The company's main business segments include: - Environmental equipment manufacturing (64.93%) - New energy business (24.59%) - Project operation revenue (7.34%) - Other (2.27%) - Soil remediation (0.87%) [2] Shareholder Information - As of September 30, 2025, Longking Environmental had 44,400 shareholders, a slight increase of 0.04% from the previous period. The average circulating shares per person decreased by 0.04% to 28,630 shares [2] - The company has distributed a total of 3.184 billion CNY in dividends since its A-share listing, with 763 million CNY distributed over the past three years [3] Institutional Holdings - As of September 30, 2025, the sixth largest circulating shareholder is GF Multi-Factor Mixed Fund, holding 28.47 million shares, a decrease of 11.75 million shares from the previous period. Hong Kong Central Clearing Limited is a new ninth largest shareholder with 10.85 million shares [3]

Core Insights - The stock price of Jiuwu Hi-Tech has increased by 43.26% year-to-date, with a recent decline of 0.76% over the last five trading days [1] - The company reported a significant year-on-year revenue growth of 24.37% and a net profit increase of 139.09% for the first nine months of 2025 [2] Financial Performance - As of November 13, Jiuwu Hi-Tech's stock price was 29.97 CNY per share, with a market capitalization of 3.748 billion CNY [1] - The company achieved a revenue of 374 million CNY and a net profit of 48.53 million CNY for the period from January to September 2025 [2] Shareholder Information - The number of shareholders increased by 24.63% to 25,100 as of September 30, with an average of 4,801 circulating shares per shareholder, a decrease of 19.83% [2] Business Overview - Jiuwu Hi-Tech specializes in membrane separation technology, focusing on ceramic membranes and providing integrated solutions for process separation and specialty water treatment [1] - The revenue composition includes 65.68% from materials and components, 32.89% from integrated membrane technology solutions, and 1.43% from other sources [1] Dividend Information - The company has distributed a total of 149 million CNY in dividends since its A-share listing, with 53.6 million CNY paid out in the last three years [3]