兴业证券：内需政策有望持续加码 建材行业有望核心受益

Industry Overview - The construction materials sector is expected to benefit from domestic demand policies aimed at stabilizing the economy, with a focus on post-completion projects and renovation of second-hand homes [1] - As of April 30, the overall PB (Price to Book) for the construction materials sector is at 1.0x, indicating a historical low valuation, while the PE (Price to Earnings) for various segments shows significant differences [1] - In Q1 2025, the transaction volume of second-hand homes in 20 major cities reached 521,300 units, a year-on-year increase of 26.88%, indicating a resilient real estate market [1] Cement Sector - The cement market is experiencing a weak recovery in demand, with a projected year-on-year decline of 1.4% in Q1 2025 production, but municipal infrastructure is providing some support [2] - Central government policies promoting production optimization and price maintenance have improved the profitability of cement companies, with gross and net profit margins expected to rise in 2024 [2] - The overall average price of cement is anticipated to continue its upward trend in 2025, leading to a potential recovery in industry profits [2] Glass Sector - Demand for glass remains resilient, primarily driven by the progress in housing completion projects, although prices are under pressure due to overall weak demand [3] - Seasonal demand is expected to strengthen in the second half of the year, with fewer production lines expected to resume operations, leading to a more stable industry environment [3] - The recommendation for investment focuses on companies like Qibin Group, which are expected to see a reversal in profitability and valuation [3] Consumer Building Materials - Retail business is becoming a key growth driver, with leading companies accelerating their retail development in response to the renovation cycle of second-hand and existing homes [4] - The competitive landscape is shifting, with leading companies increasing their market share, particularly in the waterproofing materials sector [4] - The consumer building materials sector is currently undervalued, with a low allocation in public fund holdings, suggesting potential for growth [4] Glass Fiber Sector - The glass fiber industry is seeing a recovery in prices due to improved demand from wind energy and consumer electronics, with the average price reaching 3,812.5 yuan/ton as of April 18, 2025 [5] - Inventory levels have decreased, indicating a tightening supply-demand balance, which is favorable for long-term industry growth [5] - Leading companies in the glass fiber sector are expected to benefit from valuation and profit recovery opportunities [5]