证券研究报告 | 行业周报 gszqdatemark 2026 03 01 年 月 日 建筑材料 上海地产政策松绑，期待更多政策落地 2026 年 2 月 24 日至 2 月 27 日建筑材料板块（SW）上涨 0.68%，其中 水泥（SW）上涨 1.07%，玻璃制造（SW）上涨 2.44%，玻纤制造（SW） 下跌 2.16%，装修建材（SW）上涨 2.39%，本期建材板块相对沪深 300 超额收益+0.62%。本期建筑材料板块（SW）资金净流入额为-11.78 亿元。 【周数据总结和观点】 本周上海五部门联合发布《关于进一步优化调整本市房地产政策的通知》 新政主要从限购松绑、公积金提额、房产税调整三方面发力：非沪籍居民 外环内购房社保年限由 3 年缩短至 1 年，连续缴纳满 3 年及以上可在外 环内增购 1 套；持居住证满 5 年可全市购 1 套；外环外购房不限套数。 首套公积金贷款最高额度从 160 万元提至 240 万元，多子女家庭叠加政 策后可达 324 万元；沪籍成年子女家庭唯一住房暂免房产税。根据 wind 统计，2026 年 1 月地方政府债总发行量 8633.5 亿元，发行金额环比 2025 年 ...

证券研究报告 | 行业周报 gszqdatemark 2026 03 01 年 月 日 建筑材料 上海地产政策松绑，期待更多政策落地 2026 年 2 月 24 日至 2 月 27 日建筑材料板块（SW）上涨 0.68%，其中 水泥（SW）上涨 1.07%，玻璃制造（SW）上涨 2.44%，玻纤制造（SW） 下跌 2.16%，装修建材（SW）上涨 2.39%，本期建材板块相对沪深 300 超额收益+0.62%。本期建筑材料板块（SW）资金净流入额为-11.78 亿元。 【周数据总结和观点】 本周上海五部门联合发布《关于进一步优化调整本市房地产政策的通知》 新政主要从限购松绑、公积金提额、房产税调整三方面发力：非沪籍居民 外环内购房社保年限由 3 年缩短至 1 年，连续缴纳满 3 年及以上可在外 环内增购 1 套；持居住证满 5 年可全市购 1 套；外环外购房不限套数。 首套公积金贷款最高额度从 160 万元提至 240 万元，多子女家庭叠加政 策后可达 324 万元；沪籍成年子女家庭唯一住房暂免房产税。根据 wind 统计，2026 年 1 月地方政府债总发行量 8633.5 亿元，发行金额环比 2025 年 ...

Group 1: AI Chip Market and Diamond Heat Sinks - The potential market space for diamond heat sinks in the AI chip sector is vast, with estimates suggesting a market range of 7.5 billion to 150 billion RMB by 2030, depending on penetration rates and value share [1][2] - Huanghe Xuanfeng has successfully developed an 8-inch diamond heat sink, marking a significant milestone in the commercialization of functional diamonds for high-end chip cooling applications [1] - The production workshop for diamond heat sinks is set to commence mass production in February 2023, indicating a shift from laboratory development to large-scale commercial application [1] Group 2: Related Companies in Diamond Technology - Guoji Jinggong has been focusing on diamond functional applications since 2015, with expected revenue from heat sinks and optical windows projected to exceed 10 million RMB by 2025 [3] - World has extensive R&D in CVD diamond preparation and is one of the few companies mastering the entire CVD diamond growth technology [3] - Sifangda is a leading CVD diamond manufacturer in China, capable of mass-producing large-sized diamond substrates and films [3] - Power Diamond has launched semiconductor heat sink materials with applications in AI chips and new energy sectors [3] - Huifeng Diamond's products are still in the research phase and have not yet generated revenue [3] Group 3: Transformer Market Dynamics - The transformer sector is experiencing a surge in demand due to the rapid growth of AI and data centers, with many factories operating at full capacity and orders extending to 2027 [5] - China has become the world's largest transformer producer, accounting for approximately 60% of global production capacity [5] - The U.S. market is facing a projected 30% supply gap for power transformers by 2025, indicating a significant opportunity for companies with strong distribution channels and quick delivery capabilities [5] Group 4: Glass Fiber Price Increases - Glass fiber manufacturers are expected to initiate a second round of price increases of 10% to 15% due to rising costs and supply constraints, potentially doubling prices by the end of the year [6][7] - The shift in production focus from traditional electronic cloth to specialty glass fiber cloth is causing a supply shortage in the traditional electronic cloth market [6] Group 5: Optical Fiber Market Growth - The demand for high-performance optical fibers is increasing significantly due to the AI wave, with G.652.D single-mode optical fiber prices reaching a near seven-year high of 35 RMB per core kilometer [9] - The industry is experiencing a confirmed upward price trend, with expectations for continued price increases as demand from telecom operators rises [9] Group 6: Coal Market Trends - The coal sector is seeing positive trends with a significant reduction in inventory and a favorable supply outlook, leading to optimistic coal price forecasts post-holiday [10] - The domestic coal supply has been at a low operational rate, while import volumes remain low, contributing to a favorable market environment [10]

Market Overview - On the first trading day of the Year of the Horse, major A-share indices collectively rose, with the Shanghai Composite Index up by 1.17%, Shenzhen Component Index up by 1.82%, and ChiNext Index up by 1.76% [2] - The trading volume in the Shanghai and Shenzhen markets reached 15,210 billion yuan, an increase of 3,074 billion yuan compared to the previous trading day [2] - Over 4,200 stocks in the market experienced gains [2] Resource and Technology Stocks - Resource cyclical stocks, including oil, natural gas, gold, and chemicals, saw significant increases, with companies like Zhongman Petroleum and Hunan Silver hitting the daily limit [2] - AI-driven demand led to a surge in stocks related to optical fibers, CPO, PCB, and MLCC, with Longfei Optical Fiber hitting the daily limit and reaching a historical high [2] - The glass fiber sector was notably active, with Shandong Glass Fiber hitting the daily limit within two minutes of opening [5][6] Glass Fiber Sector - On February 24, multiple glass fiber stocks surged, with International Composite hitting the daily limit with a 20% increase, setting a new historical high [6] - Shandong Glass Fiber opened with a rapid increase, and other companies like Changhai Co., China Jushi, Honghe Technology, and China National Materials also saw significant gains [6] - Due to a shortage of specialty glass fiber cloth, manufacturers are adjusting their product structures, leading to a supply gap in traditional electronic cloth [9] MLCC Sector - The MLCC sector experienced a collective rise, with Fenghua High-Tech hitting the daily limit and Dali Kaipu reaching a "20cm" limit [10] - The demand for high-end MLCCs surged due to increased orders from AI server needs, with Murata Manufacturing facing capacity shortages [10] - TrendForce reported that major manufacturers like Murata, Samsung Electro-Mechanics, and Taiyo Yuden are operating at over 80% capacity due to high demand [10][11] Film Industry - The film sector saw a collective decline, with major companies like Light Media and Bona Film Group hitting the daily limit down [12][13] - The 2026 Spring Festival box office revenue dropped significantly, with a total of 5.752 billion yuan, and the average ticket price decreased by 6% year-on-year [17] - Despite a record number of screenings, the overall attendance rate was only 22.5%, indicating a mismatch between supply and demand in the film market [17]

玻纤概念多股大涨， 国际复材涨超15%，续创历史新高，此前 山东玻纤涨停， 长海股份、 中国巨石、 宏和科技、 中材科技涨幅靠前。消息面上，供应商和业内人士预计，由于成本上升和供应紧张，玻璃 纤维制造商将掀起第二轮涨价潮。计划中的月度调价幅度为10%至15%，若按当前计划推进，到年底价 格可能翻倍。此次预期涨价是在2025年以来累计年涨幅超过50%的基础上进行的。 据 中国银河 证券， 因特种玻纤布紧缺，玻纤厂家为寻求更高利润主动调整产品结构，将传统电子布产能转向生产特种玻纤 布，进而导致传统电子布整体供应也出现缺口。2026年2月4日，光远新材、国际复材上调电子纱及电子 布报价，其中7628传统电子布市场报价上调0.5-0.6元/米，此次上调幅度较之前显著扩大。（格隆汇） ...

证券研究报告·行业跟踪周报·建筑材料 建筑材料行业跟踪周报 海外模型大厂融资落地，算力链条迎来新动 力 增持（维持） [Table_Tag] [Table_Summary] 投资要点 2026 年 02 月 24 日 证券分析师 黄诗涛 执业证书：S0600521120004 huangshitao@dwzq.com.cn 行业走势 -10% -4% 2% 8% 14% 20% 26% 32% 38% 44% 2025/2/24 2025/6/22 2025/10/18 2026/2/13 建筑材料 沪深300 相关研究 《地产链有望继续震荡向上》 2026-02-08 《建筑、建材 2025Q4 公募基金持仓 低位回升，持仓集中度有所下降》 2026-02-08 东吴证券研究所 1 / 19 请务必阅读正文之后的免责声明部分 ◼ 本周（2026.2.7–2026.2.13，下同）：本周建筑材料板块（SW）涨跌幅 2.86%，同期沪深 300、万得全 A 指数涨跌幅分别为 0.36%、1.11%，超 额收益分别为 2.50%、1.74%。 ◼ 大宗建材基本面与高频数据：（1）水泥：本周全国高标水泥市场价格为 ...

Core Viewpoint - The global supply of specialty fiberglass cloth is currently limited due to high production technology barriers, leading to a supply-demand imbalance and rising prices. This situation is expected to persist, especially with the continued high demand for AI computing power, which will further support the tight supply of high-end specialty fiberglass cloth and impact traditional electronic cloth production capacity [1][2][3]. Group 1: Market Dynamics - The demand for specialty fiberglass cloth is rapidly increasing due to the explosive growth in AI computing power, which drives the need for high-performance materials in electronic products such as AI servers and 5G base stations [2]. - The production capacity for fiberglass is expected to increase by 2025; however, the release of this capacity will face delays, maintaining the supply shortage of specialty fiberglass cloth [2][3]. - Traditional electronic cloth supply is also tightening as manufacturers shift production towards specialty fiberglass cloth, leading to price increases for traditional electronic cloth [3]. Group 2: Financial Performance - Several fiberglass companies, including China National Materials and Honghe Technology, are projected to see significant profit growth in 2025, with expected net profit increases of 173.76%-251.97% and 745%-889%, respectively, driven by rising demand and prices for electronic cloth [4]. - The overall profitability of the fiberglass industry is anticipated to continue recovering, with expectations of further price increases for electronic cloth due to sustained high demand for AI computing [4]. Group 3: Investment Opportunities - Two investment directions are suggested: 1) Focus on companies with specialty fiberglass production capabilities, such as China National Materials and Honghe Technology, which are likely to benefit from the ongoing high demand and price growth [5]. 2) Consider companies like China Jushi that have advantages in traditional electronic cloth production capacity and cost, as they are expected to benefit from the tightening supply and rising prices [5].

Core Viewpoint - The report from Zhongtai Securities indicates that electronic fabric prices have experienced two rapid increases since early 2026, reflecting a tight supply situation in the industry, particularly in the weaving segment [1][2]. Group 1: Price Trends - Electronic fabric prices have risen significantly during the traditional off-season, with Linzhou Guangyuan's 7628 fabric price increasing by 0.55 yuan to 5.40 yuan (+11%) and International Composite's 7628 fabric price rising by 0.55 yuan to 5.20 yuan (+12%) [1]. - The price increase trend has accelerated, confirming a supply-tight situation in the market [1]. Group 2: Supply-Demand Dynamics - The core supply issue lies in the midstream weaving segment, with a projected supply-demand balance for electronic yarn in 2026 showing supply growth of 6.1% versus demand growth of 6.6%, establishing a basis for price increases [2]. - The demand for low-Dk and low-CTE specialty thin fabrics driven by AI applications is increasing, leading to a thinner product structure across the industry and a decline in weaving efficiency [3]. Group 3: Weaving Equipment Shortage - The shortage of weaving machines is expected to extend the supply gap in the industry, with Japan's Toyota being a major supplier of electronic fabric weaving machines, which have a long delivery cycle [4]. - The supply gap for weaving machines is estimated to reach 6.1% in 2026 and potentially 10.6% in 2027, indicating a persistent supply-demand imbalance [5]. Group 4: Investment Recommendations - The report suggests focusing on leading companies with production scale and cost advantages, such as China Jushi (600176), which is expected to maintain a strong performance during the price increase cycle due to its significant capacity [6]. - Other recommended companies include Zhongcai Technology (002080), International Composite (301526), and Honghe Technology (603256), which have both traditional electronic fabric performance and a presence in specialty electronic fabrics [7].

Investment Rating - The industry investment rating is "Overweight" [22] Core Insights - The electronic fabric industry is experiencing unexpected price increases during the off-season, indicating a tight supply situation. Recent price hikes include a rise of 0.55 CNY to 5.40 CNY (+11%) for Linzhou Guangyuan 7628 fabric and 0.60 CNY to 5.20 CNY (+12%) for International Composite 7628 fabric [4][8] - The core supply issue lies in the weaving segment, specifically the shortage of weaving machines. The supply-demand balance for electronic yarn in 2026 is projected at +6.1% supply versus +6.6% demand, establishing a foundation for price increases [5][8] - The demand for thinner electronic fabrics is driven by AI applications, leading to a structural shift in the industry towards thinner products, which in turn reduces weaving efficiency due to increased weft density and lower production speeds [11][7] Summary by Sections Industry Overview - The total market capitalization of the industry is approximately 426.27 billion CNY, with a circulating market value of about 360.41 billion CNY [1] Supply and Demand Analysis - The shortage of weaving machines is a critical bottleneck in the supply chain. The expected supply gap for weaving machines in 2026 is estimated to be over 6.1%, potentially increasing to 10.6% in 2027 [15][20] - The production capacity of weaving machines is significantly affected by the type of fabric being produced, with thinner fabrics requiring more weft threads, thus reducing the effective output of each machine [7][15] Investment Recommendations - The report recommends focusing on leading companies with scale and cost advantages, particularly China Jushi, which is expected to maintain a production capacity of 320,000 tons of electronic yarn by the end of 2026. Other companies to watch include Zhongcai Technology, International Composite, and Honghe Technology [18][19]

A股玻璃纤维板块集体大涨。2月11日，国际复材迅速拉出20cm涨停，宏和科技、中材科技、山东玻纤等多股涨停。拉长时间来看，Wind玻璃纤 维指数自2025年12月1日至今累计涨幅已超过74%。 | 代码 | 名称 | 现价 | 涨跌幅 ▼ | 涨跌 | 换手率 | 5分钟涨跌幅 | 5日涨跌幅 | | --- | --- | --- | --- | --- | --- | --- | --- | | 300196 | 长海股份 | 20.33c | 15.77% | 2.77 | 24.74% | 0.00% | 21.59% | | 603256 | 宏和科技 | 66.61 c | 10.01% | 6.06 | 1.95% | 0.00% | 17.73% | | 603601 | 再升科技 | 12.10c | 10.00% | 1.10 | 15.13% | 0.00% | -2.42% | | 002080 | 中材科技 | 45.34c | 10.00% | 4.12 | 1.77% | 0.00% | 10.00% | | 600176 | 中国巨石 | 25.65c | 9.99% | 2. ...