丨证券研究报告丨 行业研究丨点评报告丨建筑与工程 [Table_Title] 两会前后建筑板块买什么 报告要点 [Table_Summary] 2021-2025 年两会前后建筑板块行情阶段性分化，两会前 2 个交易日，除 2022 年和 2025 年 外均实现上涨，两会期间 2021-2023 年均下跌，两会后 5 个交易日多数年份迎来修复。 分析师及联系人 [Table_Author] 张弛 张智杰 袁志芃 SAC：S0490520080022 SAC：S0490522060005 SAC：S0490525070008 SFC：BUT917 请阅读最后评级说明和重要声明 %% %% %% %% research.95579.com 1 建筑与工程 cjzqdt11111 [Table_Title2] 两会前后建筑板块买什么 [Table_Summary2] 事件描述 2021-2025 年两会前后建筑板块行情阶段性分化，两会前 2 个交易日，除 2022 年和 2025 年 外均实现上涨，两会期间 2021-2023 年均下跌，两会后 5 个交易日多数年份迎来修复。 事件评论 风险提示 1、区域基建投资力 ...

Investment Rating - The report maintains an "Overweight" rating for the construction and infrastructure sector, highlighting the potential for recovery driven by increased special bond issuance and infrastructure investment [4][5][7]. Core Insights - The issuance of special bonds accelerated in early 2026, reaching 824.2 billion yuan, a year-on-year increase of 38.1%, which is expected to boost the construction sector's recovery [4][5]. - Infrastructure investment saw a decline of 2.2% in 2025, with private investment decreasing by 6.4%, although there was a slight increase of 1.7% in private infrastructure investment [5]. - The construction sector's recovery is supported by improved work resumption rates and funding availability, with 8.9% of construction sites resuming work by February 25, 2026, an increase of 1.5 percentage points year-on-year [5]. Summary by Sections Recent Key Reports - The report discusses various sectors including AI, clean rooms, and renewable energy, recommending companies with high demand and strong competitive advantages [11][12][13]. - It emphasizes the importance of state-owned enterprises in the construction sector, particularly those with high dividend yields and stable growth prospects [21][29]. Recommended Companies - Companies such as China State Construction, China Railway, and China Communications Construction are highlighted for their strong dividend yields and potential for stable growth [7][29]. - Specific recommendations include China Electric Power Construction and China Nuclear Engineering for their roles in energy and infrastructure projects [12][18]. Macro/Meso/Micro Data - The report notes a significant increase in special bond issuance and infrastructure investment, with a projected growth of 10.9% in broad infrastructure investment in early 2025 [23][32]. - It also highlights the expected increase in self-financing for infrastructure projects, driven by local government financing and special bond issuance [33].

洁净室深度报告 20260227 摘要 国内洁净室市场规模约 2000 亿元，电子领域占比过半，预计未来增速 维持在 7%左右。技术升级推动洁净室等级提升，单位造价显著增加， 2023 年达 0.66 万元/平方米。 洁净室行业竞争格局分层明显，高端市场由少数企业主导，中高端市场 企业数量较多，低端市场竞争激烈。头部企业凭借高可靠性、长期合作 关系和高端项目经验构筑护城河，市场集中度较高。 电子洁净室是集成电路制造的关键基础设施，对空气洁净度、气流组织、 温湿度与静电控制要求严格，集成电路核心制造环节均需在 1~3 级洁净 环境中完成。 全球半导体销售额进入高速增长期，AI 是核心驱动力。台积电预计 2030 年全球半导体市场规模将突破 1 万亿美元，其中 AI 终端市场占比 45%。 AI 芯片市场的结构性增量由逻辑芯片与存储芯片双轮驱动，预计 2026 年逻辑芯片与存储芯片占比分别为 43%与 32%。英伟达在 AI 芯片市场 占据主导地位。 Q&A 洁净室行业的定义、系统构成、分类及核心应用场景分别是什么？ 洁净室是先进制造业的基础性工程，伴随制造业转型升级而发展。洁净室建设 以洁净室为核心载体，整合空 ...

袁豪 A0230520120001 yuanhao@swsresearch.com 唐猛 A0230523080003 tangmeng@swsresearch.com 册 分歧行 2026年03月01日 站院/行业 相关研究 证券分析师 唐猛 A0230523080003 tangmeng@swsresearch.com 联系人 唐猛 A0230523080003 tangmeng@swsresearch.com 统筹发展和安全,牢固树立和践行正确政绩观 电万宏源建筑周报（20260223-20260227） 本期投资提示: 请务必仔细阅读正文之后的各项信息披露与声明 == 一周板块回顾：板块表现方面，SW 建筑装饰指数+4.97%，沪深 300 指 数+1.08%，相对收益为+3.89pct。周涨幅最大的三个子行业分别为国际 工程 (+8.33%)、基建民企 (+6.10%)、专业工程 (+5.91%)，对应行 业内三个公司:中铝国际（+16.12%）、成都路桥（+15.07%）、罗曼股 份 (+37.70%)； 年 涨 幅 最 大 的 三 个 子 行 业 分 别 是 专 业 工 程 (+28.14%)、 ...

建筑装饰 2026 年 03 月 01 日 行 业 研 究 / 行 业 点 评 相关研究 证 券 研 究 报 告 证券分析师 袁豪 A0230520120001 yuanhao@swsresearch.com 唐猛 A0230523080003 tangmeng@swsresearch.com 研究支持 唐猛 A0230523080003 tangmeng@swsresearch.com 联系人 唐猛 A0230523080003 tangmeng@swsresearch.com 统筹发展和安全，牢固树立和践行正确政绩观 看好 ——申万宏源建筑周报（20260223-20260227） 本期投资提示： 请务必仔细阅读正文之后的各项信息披露与声明 本研究报告仅通过邮件提供给 中庚基金 使用。1 行 业 及 产 业 - ⚫ 一周板块回顾：板块表现方面，SW 建筑装饰指数+4.97%，沪深 300 指 数+1.08%，相对收益为+3.89pct。周涨幅最大的三个子行业分别为国际 工程（+8.33%）、基建民企（+6.10%）、专业工程（+5.91%），对应行 业内三个公司：中铝国际（+16.12%）、成都路桥（+1 ...

Core Viewpoints - The report emphasizes the importance of energy security amid the US-Iran conflict and highlights investment opportunities in the construction sector during the upcoming Two Sessions, focusing on major projects, urban renewal, and new productivity infrastructure [1][4]. Section Summaries 1. Investment Opportunities Ahead of the 2026 Two Sessions - The report predicts that the Two Sessions will continue the "proactive fiscal policy + structural monetary easing" approach, with three main focuses: major projects, urban renewal, and new productivity infrastructure. Infrastructure investment growth is expected to rebound from approximately -1% in 2025 to around 6.2% in 2026, becoming a key driver for stabilizing fixed asset investment [12][13]. 2. Mainline Selection - Structural recovery in infrastructure investment is anticipated, particularly in regions like Sichuan, Xinjiang, and Tibet, supported by central government funding. The report suggests monitoring order fulfillment and company PE levels, with a focus on companies such as Sichuan Road and Bridge, Xinjiang Communications Construction, and others [20][22]. 3. Timing Theme Investments - The report identifies urban renewal, underground pipelines, environmental codes, and the Middle East situation as key investment themes. It highlights the importance of urban renewal policies and the expected increase in demand for underground pipeline construction, with over 700,000 kilometers planned for renovation during the 14th Five-Year Plan, requiring over 5 trillion yuan in new investment [4][12]. 4. Left-Side Recommendations - Major construction state-owned enterprises are currently undervalued and have low institutional holdings. The report suggests focusing on companies with strong cash flow management and stable dividend policies, such as China State Construction, China Railway Construction, and others [4][20]. 5. Investment Recommendations - The report recommends focusing on energy security due to escalating US-Iran tensions, with specific suggestions for companies in chemical engineering, nuclear power, and oil and gas sectors. It also emphasizes the importance of urban renewal and underground pipeline projects, recommending companies like China State Construction and China Communications Construction [4][24]. 6. Key Company Valuations and Financial Analysis - The report provides a detailed valuation and financial analysis of key companies in the construction sector, indicating a generally positive outlook with buy ratings for major players such as China State Construction, China Railway, and others, reflecting their potential for growth and recovery [5][18].

Core Insights - The report highlights a positive outlook for various industries in March 2026, driven by domestic demand policies and sector-specific growth opportunities [2][3] - Key stocks recommended across different sectors are expected to show significant profit growth and favorable valuations, indicating potential investment opportunities [2][3] Industry Summaries Social Services - China Oriental Education is positioned to benefit from the growth in new service consumption, with a projected net profit of 1.1 billion yuan in 2026, reflecting a 40% increase and a PE ratio of approximately 11 times [2][3] Construction - Yaxin Integration is expected to gain from significant investments in the cleanroom industry, with orders and performance not fully anticipated, particularly from major clients like Micron and TSMC [2][3] Non-Bank Financials - CITIC Securities is recommended as a leading brokerage benefiting from market recovery and favorable policy environments, with valuations not reflecting the improving profit trends [2][3] Agriculture - Youran Dairy, a leader in dairy farming, is set to benefit from rising beef and milk prices, with expectations of high earnings recovery due to favorable market conditions [2][3] Power Equipment and New Energy - Delijia is expanding its capacity in wind power gearbox projects, with a strong order backlog and projected profit growth of 55% in 2025 [2][3] - Sifang Co. is actively expanding its overseas presence and has secured multiple projects, with a focus on cutting-edge technologies like solid-state transformers [2][3] Automotive - Xingyu Co. is positioned in a high-growth segment of automotive lighting, with a focus on smart products and expanding its global customer base, projecting revenues of 16 billion yuan in 2025 [2][3] Home Appliances - Haier Smart Home is benefiting from domestic policies promoting appliance upgrades and is enhancing operational efficiency through digital transformation, with a stable increase in market share [2][3] Basic Chemicals - Chuanheng Co. is expected to increase its phosphate mining capacity significantly by 2028, with a strong dividend payout history and high-quality product offerings [2][3] Military Industry - Lianchuang Optoelectronics is experiencing substantial growth in laser products and is entering the commercial space launch market, indicating a broad market potential [2][3]

（文章来源：证券日报） 证券日报网讯 2月26日，亚翔集成在互动平台回答投资者提问时表示，截至2026年2月13日，公司的股 东数为20690户。 ...

Investment Rating - The report indicates a positive outlook for the cleanroom sector, suggesting that the demand for cleanrooms is expected to continue increasing due to the semiconductor industry's growth [10]. Core Insights - The cleanroom shortage has garnered attention from various stakeholders in the semiconductor supply chain, including storage, wafer foundries, and equipment manufacturers, indicating a rising demand for cleanroom facilities [8][10]. - Major companies like Micron and Samsung are planning to invest in additional cleanroom capacity to meet the growing demand for advanced memory technologies, particularly HBM, which has a higher wafer consumption ratio compared to DDR5 [10]. - TSMC is also facing capacity constraints in its 3nm production due to high demand from companies like NVIDIA and AMD, leading to an anticipated increase in monthly production capacity despite cleanroom space limitations [10]. - Equipment manufacturers such as ASML, Lam Research, and KLA have reported that the physical capacity of wafer fabs is a significant constraint on expanding production to meet customer demand, with many fabs nearing full operational capacity [10]. Summary by Sections Semiconductor Storage Companies - Micron is shifting memory demand from DDR5 to HBM, which requires more cleanroom space, prompting plans for additional cleanroom investments [10]. - Samsung anticipates supply expansion limitations in 2026 and 2027 due to the scarcity of cleanroom space and is planning to invest in new wafer fabs to secure cleanroom capacity [10]. Wafer Foundries - TSMC is expected to increase its 3nm capacity by an additional 20,000 wafers per month, but is constrained by cleanroom space [10]. Equipment Manufacturers - ASML reported a revenue of €7.2 billion in Q4 2025, with CEO emphasizing that many fabs are operating at near full capacity, limiting new capacity releases due to land, power, and cleanroom space constraints [10]. - Lam Research achieved revenue of $5.1 billion, with management noting that existing fabs have little excess capacity, and new factory construction typically takes over two years [10]. - KLA reported a record revenue of $2.9 billion, with the CEO highlighting customer efforts to increase equipment density and process efficiency within limited space [10]. Market Outlook - The cleanroom sector is expected to see growth in both scale and profitability driven by AI-related semiconductor demand, with recommended investments in companies like Axiom Integration and Shenghui Integration overseas, and Deep Sanda A and Bocheng Co. domestically [10].

Summary of Conference Call Records Industry Overview - The focus is on the **building materials and new materials** industry, particularly in relation to AI computing and electronic materials, with a notable emphasis on special electronic fabrics and PCB substrates [1][2]. Key Insights and Arguments 1. **AI-Driven Growth**: - The main growth drivers in the building materials sector are AI computing-related electronic materials, with special electronic fabrics leading the fiberglass segment. In the new materials sector, PCB substrates and semiconductor packaging materials are at the forefront [1]. 2. **Supply-Demand Dynamics**: - The electronic fabric market is experiencing a supply-demand imbalance, with an overall industry supply gap of approximately **20%**. Since January 2026, all categories of electronic fabrics have faced supply tightness, with companies holding orders for about **2 months** [1]. - The production capacity for standard electronic fabrics is shifting towards high-end products, resulting in a **60%** loss in capacity. This ongoing contraction in supply is expected to persist [1]. 3. **Price Increases**: - The electronic fabric industry has seen a price increase of **10%** in 2026, following **4-5** price hikes in 2025. High-end products like DK fabric, Q fabric, and CTE fabric are still in an upward price trend [1]. 4. **Production Bottlenecks**: - High-end product production relies on Toyota's advanced weaving machines, which have a delivery cycle of **1-2 years**. However, breakthroughs in pool kiln methods could lead to increased supply by 2029, potentially resulting in oversupply [1]. 5. **Inventory Levels**: - Inventory levels for CCL and electronic fabric factories are at historical lows, approximately **one week**, with PCB manufacturers extending their stocking period from the usual **1 month** to over **2 months** [1]. 6. **Profitability**: - High-end specialty electronic fabrics can achieve gross margins of **40%-50%**, with potential increases beyond **50%** as yield rates improve [1]. Recommendations 1. **Key Companies to Watch**: - Recommended companies include **Macro Technology**, **International Composites**, **China Jushi**, and **China National Materials**. Other notable mentions are **Philips**, **Gobi Technology**, and PCB-related firms like **China Tungsten High-Tech**, **Lianrui New Materials**, and **Dongcai Technology** [2]. 2. **Consumer Building Materials**: - The industry is nearing a bottoming phase, with significant price wars easing. Leading companies are shifting focus from price competition to quality and profitability recovery, with expectations for stabilization in 2026 and performance elasticity in 2027 [2]. 3. **Segment Differentiation**: - The waterproof segment shows signs of ending price wars, while the renovation of existing properties is becoming a core growth driver. Leading firms are enhancing their C-end and overseas strategies [2]. 4. **Strategic Focus**: - Major companies are prioritizing profitability recovery, channel optimization, and product diversification, while also accelerating overseas expansion to create a second growth curve [2]. 5. **Recommended Stocks**: - Elastic stocks include **Keshun Co.**, **Oriental Yuhong**, and **Hankao Group**. Stable stocks to consider are **Rabbit Baby**, **Sankeshu**, **Dongpeng Holdings**, **Monalisa**, and **China Liansu** [2]. Additional Insights - Traditional cyclical products are highlighted, with a focus on local state-owned enterprises like **Sichuan Road and Bridge**, **Shandong Road and Bridge**, and **China Railway**. The steel structure sector is represented by companies like **Honglu Steel Structure** and **Jinggong Steel Structure** [3]. - The cement sector is advised to focus on regional leaders such as **Western Cement**, **Huaxin Cement**, and **Shangfeng Cement** [3]. - Other new materials and robotics sectors are also mentioned, with companies like **Pana Micro透**, **TianYue Advanced**, and **Jing Sheng Co.** being noted [3].