Core Viewpoint - The article discusses the importance of electronic cloth in the production of copper-clad laminates (CCL) and its impact on the performance of printed circuit boards (PCB), highlighting the growing demand for specialized electronic cloth in high-performance applications such as AI hardware and data centers [5][16][21]. Group 1: Electronic Cloth and CCL - Copper-clad laminates (CCL) are essential materials for manufacturing printed circuit boards (PCB), composed of electronic cloth, resin matrix, and copper foil [5]. - The dielectric constant (Dk) and dielectric loss (Df) of electronic cloth significantly influence the signal integrity in PCBs, affecting the electromagnetic field distribution and energy loss during signal transmission [8][9]. - The dielectric properties of electronic cloth, such as Dk and Df, are critical for high-speed signal transmission, with lower values indicating better performance [9][10]. Group 2: Market Trends and Demand - The demand for specialized electronic cloth, including low dielectric (Low-DK) and low expansion (Low-CTE) glass fiber cloth, is increasing due to the rising requirements for AI hardware and high-speed data communication [20][21]. - The global PCB industry is entering a new growth cycle, with an expected compound annual growth rate (CAGR) of 5.2% from 2024 to 2029, driven by high-end applications in AI, servers, and automotive electronics [41][42]. - The market for high-end CCL is projected to outperform the overall market, with manufacturers maintaining a cautious expansion strategy amid strong demand [43][50]. Group 3: Competitive Landscape - The market for Low-DK second-generation glass fiber cloth is characterized by limited suppliers, with major players including Nitto Denko, AGY, and Huagong Technology actively expanding production capacity [54]. - The top ten manufacturers in the CCL market account for approximately 75% of global sales, with the leading four companies holding nearly 48% market share [51]. - Companies like Feilihua and Zhongcai Technology are focusing on developing quartz fiber electronic cloth, which offers superior dielectric performance compared to traditional glass fibers [60][79].