建材行业报告（2025.12.15-2025.12.21）：关注内需低位品种，有望迎来估值与业绩双重修复

Industry Investment Rating - The investment rating for the construction materials industry is "Outperform the Market" and is maintained [1] Core Insights - The Central Economic Work Conference emphasized the importance of domestic demand and proposed actions to boost consumption, indicating a potential recovery in the construction materials sector in 2026 due to improved fundamentals and valuations [4] - Cement demand is currently under pressure, with a national decline in demand observed, particularly in the housing market, while infrastructure demand shows regional differentiation. The cement industry is expected to see a reduction in overproduction, leading to improved capacity utilization and profit elasticity [4][8] - The glass industry continues to face demand challenges, with high inventory levels among intermediaries and limited improvement in downstream demand. Price fluctuations are expected to remain low due to ongoing supply-demand pressures [5][13] - The fiberglass sector is experiencing stable demand in certain areas, such as wind power and electronics, with expectations for explosive growth driven by AI-related demand [5] - The consumer building materials sector has reached a profitability bottom, with strong pricing improvement requests from companies, indicating potential for profit recovery in the latter half of the year [5] Summary by Sections Cement - December marks the onset of the off-peak season in the northern regions, with national demand continuing to decline. The housing market remains weak, while infrastructure demand is driven by policy, showing significant regional differences. The civil market exhibits relatively rigid demand [4][8] - In November 2025, cement production was 154 million tons, reflecting a year-on-year decline [8] Glass - The glass industry is under pressure, with traditional peak season orders showing limited improvement and high inventory levels among intermediaries. Supply-side adjustments are expected with the cold repair of five production lines, but overall supply-demand pressures persist [5][13] Fiberglass - Demand in sectors like wind power and electronics remains stable, while traditional demand for coarse sand is slowing. The industry is expected to see growth driven by AI-related demand, with a clear upgrade in product structure [5] Consumer Building Materials - The sector's profitability has reached a low point, with no further downward price pressure expected. Companies are actively seeking price increases, indicating a strong desire for profit improvement [5]