Core Viewpoint - The article highlights the critical supply constraints of T glass, a specialized material essential for high-performance AI servers, driven by the surging demand from major tech companies like Nvidia, AMD, and Microsoft [1][5][8]. Group 1: Supply Chain Dynamics - Major tech executives have been visiting Nitto Boseki, the sole high-end glass cloth supplier, to secure T glass for AI data centers, indicating a strategic move to ensure material availability [1][5]. - The demand for T glass is surging due to its rigidity, which prevents substrate bending during advanced chip packaging, crucial for AI chip production yield [2][5]. - Nitto Boseki has committed to investing 80 billion yen (approximately 550 million USD) to expand semiconductor material production, including T glass, aiming to double its capacity in Taiwan by March 2028 [5][8]. Group 2: Market Competition and Challenges - The supply of T glass has been particularly tight since the second half of last year, with many companies unable to secure additional capacity despite increased cash offers [5][12]. - Competitors like Taiwan Glass are looking to enter the T glass market, with plans to ramp up production by the end of 2025, potentially altering the market dynamics if they succeed in certification processes [10][11]. - The article notes that while new entrants are emerging, the production of high-end T glass requires significant time and expertise, suggesting that Nitto Boseki may maintain its critical position in the supply chain for the foreseeable future [12]. Group 3: Financial Performance - Nitto Boseki reported sales of 109 billion yen in the last fiscal year, a 17% increase year-on-year, with profit margins rising from 9% to 15.1%, largely driven by AI application demand [8].