Xin Lang Cai Jing·2026-02-11 10:16Group 1 - International Composite Materials (301526) is a core supplier of electronic-grade glass fiber and products in China, focusing on high-performance glass fiber material research and production, with a full industry chain layout advantage in electronic cloth [1][21] - The company’s main business includes electronic-grade glass fiber yarn, electronic cloth, and composite material products, widely used in copper-clad laminates (CCL) and printed circuit board (PCB) manufacturing, featuring electrical insulation and fire resistance [1][21] - The company is focusing on high-end products such as low-dielectric electronic cloth, suitable for high-speed PCB scenarios like AI servers and data centers, with production capacity and technical strength among the industry leaders [1][21] Group 2 - Honghe Technology (603256) is a leading enterprise in the global mid-to-high-end electronic-grade glass cloth segment, breaking international monopolies in ultra-thin and extremely thin electronic cloth [2][22] - The company’s main business focuses on the research, production, and sales of electronic-grade glass fiber yarns and fabrics, with applications covering various electronic devices including mobile phones, computers, and AI servers [2][22] - As a core supplier to global top copper-clad board manufacturers, the company has a significant competitive advantage in high-end PCB manufacturing, especially in AI computing-related high-speed PCB fields [2][22] Group 3 - China National Materials (002080) is a comprehensive leader in the new materials sector, leveraging state-owned enterprise resources to maintain industry leadership in glass fiber and wind power blades [3][23] - The company’s main business includes glass fiber and products, wind power blades, and lithium battery separators, with glass fiber being a core segment [3][23] - The company’s subsidiary, Taishan Glass Fiber, developed the first generation of low-dielectric fine yarn and electronic cloth, which won a global leading ICT manufacturer’s "Technology Breakthrough Award" [3][23] Group 4 - China Jushi (600176) is the absolute leader in the global glass fiber industry, with production capacity and technical strength at the forefront globally [4][24] - The company has built a full industry chain advantage from glass fiber yarn to electronic cloth, with products widely used in construction, electronics, and automotive sectors [4][24] - The company’s electronic cloth production capacity ranks among the top globally, with significant cost advantages in self-developed low-dielectric glass fiber (TLD-glass) [4][24] Group 5 - Jinan Guojin (002636) is a key player in the copper-clad board industry, with a complete electronic materials industry chain layout [5][25] - The company focuses on the research and production of copper-clad boards and related materials, maintaining a stable market share in East China [5][25] - The company’s electronic-grade glass fiber cloth is a core raw material for copper-clad boards, enabling effective cost reduction through in-house production [5][25] Group 6 - Hongchang Electronics (603002) is an important enterprise in the domestic electronic-grade epoxy resin and copper-clad board sector, covering core upstream and downstream segments of electronic cloth [6][26] - The company has established long-term partnerships with major domestic PCB manufacturers, focusing on the production and sales of electronic-grade epoxy resin, copper-clad boards, and semi-cured sheets [6][26] - The company benefits indirectly from the development of the electronic cloth industry through its copper-clad board business [6][26] Group 7 - Filihua (300395) is a leading enterprise in the global quartz glass materials sector, being the only company in China to achieve mass production of high-end quartz electronic cloth (Q cloth) [7][27] - The company’s main business focuses on the research, production, and sales of quartz glass and products, with applications in high-end fields such as semiconductors and optical communications [7][27] - The company’s third-generation quartz cloth has a dielectric constant as low as 2.3, making it a core enhancement material for M9 copper-clad boards [7][27] Group 8 - Changhai Co., Ltd. (300196) is an important enterprise in the domestic glass fiber and composite materials industry, focusing on high-end electronic cloth business through its subsidiaries [8][28] - The company’s main business includes glass fiber yarn, glass fiber products, and composite materials, with a stable production capacity layout in East China [8][28] - The company’s subsidiary, Guangyuan New Materials, focuses on producing low-dielectric electronic cloth and electronic yarn, entering the high-end PCB materials market [8][28] Group 9 - Jiuding New Materials (002201) is one of the leading enterprises in the domestic electronic cloth industry, with deep accumulation in glass fiber and composite materials [9][30] - The company’s main business includes glass fiber products, composite materials, and wind power blades, with electronic cloth being a core segment [9][30] - The company is continuously advancing the research and development of special glass fibers and electronic cloth, with significant revenue growth expected in the second quarter of 2025 [9][30] Group 10 - Shandong Glass Fiber (605006) is an important enterprise in the domestic glass fiber industry, with electronic cloth being a key focus area [10][31] - The company leverages the glass fiber industry cluster advantage in Shandong, steadily expanding its production capacity [10][31] - The company is focusing on mid-to-high-end electronic cloth products, adapting to the upgrading needs of the PCB industry [10][31]