GOLDEN SUN SECURITIES·2025-07-20 09:22Investment Rating - The report maintains a rating of "Buy" for Beixin Building Materials and "Overweight" for Weixing New Materials [5][9]. Core Views - The Yarlung Tsangpo River downstream hydropower project has officially commenced, with a total investment of approximately 1.2 trillion yuan, expected to boost infrastructure in Tibet [2]. - The cement industry is currently experiencing a demand downturn, but supply-side adjustments, such as staggered production halts, are anticipated to improve the situation [2][3]. - The glass manufacturing sector is facing supply-demand contradictions, but the recent self-discipline production cuts in photovoltaic glass may alleviate some of these issues [2][6]. - The consumption building materials sector is benefiting from favorable second-hand housing transactions and consumption stimulus policies, with significant potential for market share growth [2][6]. - The fiberglass market shows signs of recovery, particularly in wind power demand, while electronic fiberglass prices remain stable amid supply-demand differentiation [2][7]. Summary by Sections Cement Industry Tracking - As of July 18, 2025, the national cement price index is 343.37 yuan/ton, down 0.69% week-on-week, with a total cement output of 2.7828 million tons, up 2.09% [3][16]. - Infrastructure remains the only positive demand driver for cement, but local government funding pressures persist [3][16]. - The cement industry is expected to see structural opportunities in key regions like Sichuan-Chongqing and the Yangtze River Delta [3][16]. Glass Industry Tracking - The average price of float glass is 1211.96 yuan/ton, with a week-on-week increase of 0.58% [6][31]. - Inventory levels for sample enterprises have decreased, indicating a potential for short-term replenishment demand [6][31]. - The market remains cautious, with limited order improvements expected in the near term [6][31]. Fiberglass Industry Tracking - The price of non-alkali fiberglass has shown slight weakness, while demand from wind power and thermoplastics remains relatively strong [7]. - The electronic fiberglass market is experiencing stable pricing, with high-end products seeing a notable supply-demand gap [7]. Consumption Building Materials - The consumption building materials sector is experiencing a weak recovery, supported by declining prices of upstream raw materials [6][7]. - Companies like Beixin Building Materials and Weixing New Materials are highlighted for their growth potential in this sector [5][9]. Carbon Fiber Industry Tracking - The carbon fiber market remains stable, with production costs at 106,400 yuan/ton and a negative profit margin [8]. - Demand is expected to grow in sectors like wind power and hydrogen storage, although recovery is gradual [8].