行业周报：大基建继续维稳经济，建材反内卷进行时-20250817

Investment Rating - The investment rating for the construction materials industry is "Positive" (maintained) [1] Core Views - The construction materials sector is benefiting from significant infrastructure projects, such as the establishment of the new Tibet Railway Company with a registered capital of 95 billion yuan, which is expected to drive GDP growth by approximately 0.18 percentage points annually [3] - The report highlights key companies in the consumer building materials segment, including Sankeshu (channel expansion), Dongfang Yuhong (waterproofing leader), Weixing New Materials (high retail business proportion), and Jianlang Hardware [3] - The cement sector is expected to benefit from the National Development and Reform Commission's energy-saving and carbon reduction initiatives, aiming to control cement clinker capacity at around 1.8 billion tons by the end of 2025 [3] - The report also notes the positive impact of "equal tariffs" on glass fiber leaders with overseas production bases, enhancing profitability [3] Summary by Sections Market Performance - The construction materials index increased by 2.88% in the week from August 11 to August 15, 2025, outperforming the CSI 300 index by 0.51 percentage points [4][13] - Over the past three months, the CSI 300 index rose by 8.87%, while the construction materials index increased by 16.67%, outperforming the CSI 300 by 7.80 percentage points [4][13] - In the past year, the CSI 300 index increased by 25.61%, and the construction materials index rose by 35.30%, outperforming the CSI 300 by 9.69 percentage points [4][13] Cement Sector - As of August 15, 2025, the average price of P.O42.5 bulk cement in China was 275.14 yuan/ton, reflecting a 0.52% increase from the previous period [6][23] - The cement clinker inventory ratio was 66.18%, down by 1.30 percentage points [6][23] - Regional price variations were noted, with Northeast China seeing a 2.64% increase, while North China experienced a 0.75% decrease [6][23] Glass Sector - The average spot price of float glass as of August 15, 2025, was 1209.38 yuan/ton, down by 3.97% [6][77] - The average price of photovoltaic glass was 116.41 yuan/weight box, reflecting a slight increase of 0.13% [6][85] - National float glass inventory increased by 118 million weight boxes, a rise of 2.15% [6][79] Glass Fiber Sector - The market prices for various types of glass fiber remained stable, with some flexibility in transactions [6][4] - The report indicates that the glass fiber sector is also experiencing positive trends, with specific companies highlighted for their performance [6][4] Consumer Building Materials - The report notes that raw material prices for consumer building materials are maintaining a slight fluctuation trend [6][4] - Key companies in this segment are also tracked for their valuation performance [6][4]