9月基建表现疲软，四季度基建或受益增量资金和政策催化

Group 1: Construction and Infrastructure Investment - In the first nine months of 2025, real estate development investment decreased by 13.9%, while narrow infrastructure and broad infrastructure investments increased by 1.1% and 3.3% respectively [1][2] - In September 2025, real estate development investment fell by 21.3%, narrow infrastructure by 4.7%, and broad infrastructure by 8.0% [1][2] - The overall performance of infrastructure in the third quarter was weak due to a high base, but the fourth quarter is expected to benefit from early fiscal fund allocations and the acceleration of 500 billion yuan in new policy financial tools [1][2] Group 2: Real Estate and Construction Performance - From January to September 2025, the sales area of real estate decreased by 5.5%, with a monthly decline of 11.9% [2] - The completion area of real estate saw a monthly increase of 0.38% in September, marking the first positive monthly growth since 1999 [2] - The construction area decreased by 9.4% year-on-year, with a monthly decline of 16.44% [2] Group 3: Cement Industry Insights - Cement production from January to September 2025 was 1.259 billion tons, down 5.2% year-on-year, with September's production at 154 million tons, a decline of 8.6% [2][3] - The average cement shipment rate was 41.3%, down 2.6 percentage points year-on-year, indicating weak demand [2] - Cement prices showed fluctuations, with an average price of 351 yuan per ton, down 64 yuan year-on-year, but slightly up by 4 yuan from early September [2] Group 4: Glass Industry Demand - Flat glass production from January to September 2025 was 72.881 million heavy boxes, down 5.2% year-on-year, with September's production at 8.148 million heavy boxes, a decline of 9.7% [3] - There was a slight improvement in demand for float glass in September, with a good trading atmosphere and a decrease in producer inventory [3] - The average price for 5mm float white glass was 67.8 yuan per heavy box, showing a year-on-year increase of 1.9 yuan [3]