Hua Yuan Zheng Quan·2025-06-04 07:59Investment Rating - The investment rating for the construction materials industry is "Positive" (maintained) [4] Core Viewpoints - The demand for high-end electronic fabrics is accelerating, leading to a new round of competition among fiberglass companies. The shortage of low thermal expansion coefficient (Low CTE) glass fabric raw materials and the surge in order demand have resulted in significantly extended delivery times for BT materials, confirming the ongoing supply-demand imbalance in high-end electronic fabrics. The rapid development of the AI industry is driving hardware upgrades, increasing the demand for high-speed, high-frequency PCB boards, which in turn raises the performance requirements for upstream electronic fabrics [4] - The report suggests focusing on companies with existing or potential layouts in high-end electronic fabrics, such as Honghe Technology, Zhongcai Technology, and China Jushi [4] Summary by Sections 1. Sector Tracking - The construction materials index (Shenwan) rose by 0.2%, while the cement, glass fiber, and renovation materials indices fell by 0.2%, 0.2%, and rose by 0.6% respectively. The top five gainers included Zhongqi New Materials (+20.5%) and Honghe Technology (+17.1%) [9] 2. Industry Dynamics - In May, the average price of new homes in 100 major cities in China rose by 0.30% month-on-month to 16,815 RMB per square meter, while the average price of second-hand homes fell by 0.71% year-on-year [14] - The sales revenue of the top 100 real estate companies in the first five months of 2025 was 1,443.6 billion RMB, a year-on-year decrease of 10.8% [14] - The balance of real estate loans in RMB at the end of the first quarter of 2025 was 53.54 trillion RMB, with a year-on-year growth of 0.04% [14] 3. Data Tracking 3.1 Cement - The average price of 42.5 cement nationwide was 367.8 RMB per ton, down 3.0 RMB per ton month-on-month and down 6.3% year-on-year [15] - The cement inventory ratio was 65.7%, up 0.4 percentage points month-on-month [15] 3.2 Float Glass - The average price of 5mm float glass was 1,370.3 RMB per ton, down 24.6 RMB per ton month-on-month and down 409.5 RMB per ton year-on-year [32] 3.3 Photovoltaic Glass - The average price of 2.0mm coated photovoltaic glass was 13.6 RMB per square meter, down 0.1 RMB per square meter month-on-month [37] 3.4 Glass Fiber - The average price of alkali-free glass fiber yarn was 4,705.0 RMB per ton, unchanged month-on-month and up 40.0 RMB per ton year-on-year [43] 3.5 Carbon Fiber - The average price of large tow carbon fiber was 72.5 RMB per kilogram, unchanged month-on-month and down 5.0 RMB per kilogram year-on-year [46]