建筑材料行业月报：玻纤“复价模式”开启，行业盈利能力有望持续提升-20251023

Investment Rating - The report maintains a "Recommended" rating for the construction materials industry [3][38]. Core Viewpoints - The construction materials industry is expected to see improved profitability due to the "re-pricing model" initiated in the fiberglass sector, which is anticipated to enhance industry margins [4][30]. - Continuous real estate policy support is likely to drive valuation recovery and fundamental improvements in the construction materials sector [4][38]. - The cement market is entering a traditional peak season, but demand recovery remains weak, with September cement production down 8.6% year-on-year [8][39]. - The glass industry is experiencing slight demand improvement, with inventory levels decreasing, although supply pressures persist [19][20]. - The fiberglass sector is witnessing a price increase of 5%-10% for certain products, indicating a potential uplift in profitability [30][31]. Summary by Sections Cement Industry - In September, cement production was 154 million tons, down 8.6% year-on-year, with a cumulative decline of 5.2% for the first nine months of 2025 [8][39]. - Fixed asset investment (excluding rural households) fell by 0.5% year-on-year, marking the first negative growth in national fixed asset investment [8][39]. - The average cement price in September was 346.77 yuan/ton, up 5.43 yuan from June [8][39]. Glass Industry - The national flat glass production for January to September was 729 million weight boxes, down 5.2% year-on-year, with a slight recovery in demand noted in September [19][20]. - Inventory levels for flat glass decreased by 5.13% month-on-month, indicating a positive trend in demand [20]. - The market is expected to experience a fluctuating trend after recent price increases, with supply pressures still present [29][40]. Fiberglass Industry - The fiberglass industry is seeing a price adjustment with increases of 5%-10% for various products, signaling a potential improvement in profitability [30][31]. - Demand from the wind power and new energy vehicle sectors remains strong, with significant year-on-year growth in wind power generation [30][31]. Consumer Building Materials - The retail sales of building and decoration materials increased by 1.6% year-on-year from January to September 2025, indicating slight demand growth [35]. - Ongoing real estate policy measures are expected to alleviate inventory pressures and improve the industry's fundamentals [35][38].