关于签订买卖合同的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误 导性陈述或重大遗漏。 青龙管业集团股份有限公司 证券代码：002457 证券简称：青龙管业 公告编号：2026-010 特别提示： 1、合同在执行期间可能存在原、辅材料价格上涨、劳动力成本上升等不利因素，对 公司合同履行收益产生影响。 2、合同金额较大且合同采取分期付款的方式，因此，存在不能及时收回部分合同款 的风险。 3、合同实施过程中如发生设计变更或受不可抗力等因素的影响，存在无法全部履行 或延缓履行的可能。 近日，青龙管业集团股份有限公司（以下简称"公司"）收到了与上海电气风电集团 股份有限公司就宁夏彭阳、同心项目（混塔管片采购项目）签署的《采购合同》，合同主 要情况如下： 一、合同签署概况 甲方：上海电气风电集团股份有限公司 乙方：青龙管业集团股份有限公司 项目名称：宁夏彭阳、同心项目（混塔管片采购项目） 合同范围：混塔管片 供货期限：分多批交付，具体交货计划以甲方书面通知为准 合同金额：54,358,607.85 元（伍仟肆佰叁拾伍万捌仟陆佰零柒元捌角伍分） 二、交易对手方介绍 1、公司名称：上海电气 ...

证券代码：002457 证券简称：青龙管业 公告编号：2026-009 青龙管业集团股份有限公司 关于签订买卖合同的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误 导性陈述或重大遗漏。 特别提示： 1、合同在执行期间可能存在原、辅材料价格上涨、劳动力成本上升等不利因素，对 公司合同履行收益产生影响。 2、合同金额较大且合同采取分期付款的方式，因此，存在不能及时收回部分合同款 的风险。 3、合同实施过程中如发生设计变更或受不可抗力等因素的影响，存在无法全部履行 或延缓履行的可能。 2026 年 2 月 14 日，青龙管业集团股份有限公司（以下简称："公司"）在证券时报、 证券日报、中国证券报、上海证券报及巨潮资讯网（www.cninfo.com.cn)上披露了《关于 收到中标通知书的公告》（公告编号：2026-006），公司控股孙公司彭阳县青龙管道科技有 限公司被确认为彭阳县王洼电厂余热至县城供热管网项目一标段的中标单位。近日，公司 收到了经合同双方签字盖章的《直埋式预制钢管保温管采购合同》，合同主要情况如下： 一、合同签署概况 甲方：彭阳县集中供热有限责任公司 乙方：彭阳县青 ...

Investment Rating - The report emphasizes low valuation companies in the energy sector with a PE ratio below 20X for the 2026 profit forecast [2] Core Insights - The report highlights the importance of "selling shovel" companies in the coal chemical sector, particularly in the context of fluctuating oil prices, which significantly impact the economic viability of coal chemical projects [3][13] - It identifies several key players in the energy engineering sector, including Donghua Technology, China Energy Engineering, and China Chemical, which are involved in significant projects and are expected to see revenue growth [3][13] - The report also discusses the energy materials sector, noting that companies like Keda Manufacturing and Changbao Co. are experiencing improvements due to unexpected changes in demand [4][14] - AI new materials are highlighted as having a price increase expectation, with specific references to electronic fabrics and copper foil, indicating a strong cycle of inflation in these sectors [4][14] Summary by Sections Energy Engineering - Focus on coal chemical projects, particularly coal-to-olefins, coal-to-oil, and coal-to-natural gas, with economic viability tied to oil prices above $80 per barrel [3][13] - Key companies include: - Donghua Technology: Expected revenue of 10 billion with a 13% increase in 2025 [3][13] - China Energy Engineering: Largest green hydrogen and ammonia project globally [3][13] - Other notable mentions include China Chemical, Sanwei Chemical, and local mining companies in Xinjiang [3][13] Energy Materials - Companies like Keda Manufacturing are benefiting from the growing demand for energy storage materials [4][14] - The report notes the potential for price increases in AI materials, particularly in electronic fabrics and copper foil, driven by ongoing inflationary pressures [4][14] Market Performance - The cement sector shows a national average price of 338 RMB/ton, with a year-on-year decrease of 52 RMB/ton and a slight month-on-month decline [15][18] - The glass market sees a slight increase in prices, with the average price for float glass at 1174.93 RMB/ton, reflecting a 0.89% increase [15][36] - The report indicates a mixed performance across various building materials, with the construction index down by 6.21% [18][24]

Group 1: Company Overview - The company operates under the stock code 002457 and is known as Qinglong Pipe Industry Group Co., Ltd. [1] - As of 2024, the company has established 19 subsidiaries across 12 provinces in China, indicating a nationwide layout trend [2][3]. Group 2: Revenue Distribution - Revenue distribution by region shows that the Northwest region accounts for 58.52%, North China 21.18%, Central China 13.03%, South China 5.73%, and East China 1.54% [2][3]. Group 3: Market Opportunities - During the 14th Five-Year Plan, China is expected to construct and renovate over 700,000 kilometers of underground pipelines, with an investment demand exceeding 5 trillion yuan [3]. - The company plans to increase its investment in urban pipeline renewal and expand its product structure by focusing on plastic pipelines [3]. Group 4: Competitive Advantage - The company's representative product, PCCP, is primarily used in national cross-basin water diversion and urban water supply projects, with a high gross margin [4]. - The core competitive advantages include production technology, process level, cost control, production efficiency, and experience in large projects [4]. Group 5: Industry Trends - Future development directions for smart pipelines include safety detection, leak monitoring, digital twins, intelligent control, smart manufacturing, and smart operations [5].

证券代码：002457 证券简称：青龙管业 公告编号：2026-008 青龙管业集团股份有限公司 关于为控股子公司提供担保的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误 导性陈述或重大遗漏。 一、担保情况概述 青龙管业集团股份有限公司（以下简称"公司"）就控股子公司青铜峡市青龙新型管 材有限公司（以下简称"新型管材"）与华夏银行股份有限公司银川凤凰北街支行（以下 简称"华夏银行银川凤凰北街支行"）借款事项签订了最高额保证合同，具体情况如下： | 担保方 | 被担保方 | 担保方 | 被担保方最 | 经审批担 | 截至目前 | 本次新增 | 本次担保额 度占上市公 | 是否 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | 持股比 | 近一期资产 | 保总额度 | 担保余额 | 担保额度 | 司最近一期 | 关联 | | | | 例 | 负债率 | （万元） | （万元） | （万元） | 净资产比例 | 担保 | | 青龙管业 集团股份 有限公司 | 青铜峡市青龙新 型管材有限公司 | 82.22 ...

Investment Rating - The investment rating for the construction materials industry is "Positive" (maintained) [5] Core Insights - The electronic fabric sector is experiencing an upward trend, with potential price increases due to supply constraints and strong demand. Key companies to watch include China Jushi, Honghe Technology, and Zhongcai Technology [6] - The real estate chain is expected to benefit from policy expansions and urban renewal initiatives, with companies like Sankeshu, Beixin Building Materials, and Dongfang Yuhong being highlighted for investment [6] - The average price of 42.5 cement nationwide is 338.5 RMB/ton, showing a month-on-month decrease of 2.7 RMB/ton and a year-on-year decrease of 49.0 RMB/ton [17] - The average price of 5mm float glass is 1254.0 RMB/ton, with a month-on-month increase of 16.5 RMB/ton but a year-on-year decrease of 250.9 RMB/ton [38] - The average price of electronic yarn is 10550.0 RMB/ton, reflecting a month-on-month increase of 50.0 RMB/ton and a year-on-year increase of 1900.0 RMB/ton [50] Summary by Sections Section 1: Market Tracking - The construction materials index increased by 4.4% during the reporting period, outperforming the Shanghai Composite Index, which rose by 2.0% [10] - The top five gainers in the sector included Zaiseng Technology (+21.7%) and Qinglong Pipeline (+18.2%) [10] Section 2: Data Tracking Cement - The national average price for 42.5 cement is 338.5 RMB/ton, with a month-on-month decrease of 2.7 RMB/ton and a year-on-year decrease of 49.0 RMB/ton [17] - The cement inventory ratio is 64.1%, with a month-on-month decrease of 1.3 percentage points [17] Float Glass - The average price for 5mm float glass is 1254.0 RMB/ton, with a month-on-month increase of 16.5 RMB/ton [38] - Inventory levels for float glass increased by 4.3% month-on-month [38] Photovoltaic Glass - The average price for 2.0mm coated photovoltaic glass is 10.7 RMB/sqm, unchanged month-on-month [43] - Inventory days for photovoltaic glass increased by 19.3% month-on-month [43] Glass Fiber - The average price for non-alkali glass fiber yarn is 4565.0 RMB/ton, unchanged month-on-month [50] - The average price for electronic yarn is 10550.0 RMB/ton, reflecting a month-on-month increase of 50.0 RMB/ton [50] Carbon Fiber - The average price for large tow carbon fiber is 72.5 RMB/kg, unchanged month-on-month [53] - The average price for small tow carbon fiber is 95.0 RMB/kg, unchanged month-on-month [53]

Investment Rating - The report suggests a positive outlook for the electronic inflation chain and oil chain sectors, indicating potential price increases and strong demand in various materials [1][2][3]. Core Insights - The electronic inflation chain is expected to see price increases in early March due to strong downstream demand from AI materials and new product launches, with a successful price transmission anticipated [1]. - The oil chain is impacted by rising oil prices, leading to cost increases for products like asphalt, with companies adjusting prices accordingly [2]. - Companies like Keda, Huaxin, and Leshushi are highlighted for their expansion into international markets, particularly in Africa and South America, indicating a strategic focus on local manufacturing and job creation [3]. Summary by Sections Electronic Inflation Chain - Strong demand for AI materials is driving price increases in electronic fabrics and copper foil, with expectations for smooth price transmission in March [1]. - The report emphasizes the ongoing trend of AI displacing traditional production capacities in various sectors, including storage and electronic fabrics [1]. Oil Chain - The report notes that the cost of asphalt has risen from 3,000 RMB/t to 3,350 RMB/t, prompting companies to increase prices by 5%-10% for related products [2]. - The report highlights the potential for coal chemical alternatives to gain traction as oil prices rise, suggesting increased capital expenditure in this area [2]. International Expansion - Keda's establishment of a glass factory in Ghana is noted as a significant development, with expectations for local job creation and reduced costs for construction and automotive needs [3]. - Leshushi's inclusion in the Hang Seng Composite Index is also highlighted, indicating its growing market presence and liquidity [3]. Market Performance - The report provides insights into the performance of various materials, with cement prices averaging 339 RMB/ton, down 52 RMB/ton year-on-year, and glass prices showing a slight increase [4][15]. - The overall building materials index has shown a positive performance, with specific sectors like glass manufacturing and fiberglass seeing notable gains [18].

Group 1 - The core point of the article is that Qinglong Pipe Industry reported its shareholder count as of February 13, 2026, which stands at 37,381 households [2]

Core Viewpoint - Qinglong Pipeline Group Co., Ltd. has been awarded a contract worth 146 million yuan for a heating pipeline project, which is expected to impact the company's performance in 2026-2027 [2]. Group 1: Company Overview - Qinglong Pipeline focuses on the research, production, and sales of high-quality water supply pipes and related products, providing comprehensive solutions in the water-saving field [2]. - The company is the only large-scale manufacturer in China that covers concrete pipes, plastic pipes, and steel pipes, meeting diverse customer needs for mainstream supply and drainage pipes, gas pipes, heating pipes, and water-saving irrigation products [2]. Group 2: Project Details - The contract awarded to Qinglong Pipeline's subsidiary, Pengyang Qinglong Pipeline Technology Co., Ltd., is for the first section of the heating pipeline project from Wangwa Power Plant to the county town [2]. - The project amount represents 5.19% of Qinglong Pipeline's audited total revenue for the fiscal year 2024, indicating a significant contribution to the company's financials [2].

Core Viewpoint - The renovation and building materials sector experienced growth, closing at 18,438.61 points with a rise of 2.02%, driven by several stocks in the sector showing significant price increases [1] Group 1: Stock Performance - Top performer in the renovation and building materials sector was Dinggu Jichuang, closing at 34.39 CNY per share with a gain of 19.99% [1] - Yangzi New Materials followed with a closing price of 4.57 CNY per share, also up by 19.99% [1] - Qinglong Pipeline Industries closed at 13.70 CNY per share, marking a rise of 10.04% [1] - On the downside, Yabo Co. led the declines with a closing price of 2.24 CNY per share, down by 5.08% [1] - ST Songfa closed at 95.10 CNY per share, down by 5.00% [1] - Wanli Stone closed at 44.85 CNY per share, with a decline of 4.78% [1] Group 2: Market Insights - Dongwu Securities reported that the transaction volume of second-hand homes has slightly exceeded expectations since the beginning of the year, indicating signs of stabilization [1] - Pilot programs for stock housing storage in cities like Shanghai are beneficial for the medium to long-term stabilization of the real estate market [1] - The performance of the real estate chain in the first half of 2026 is expected to remain relatively flat, although improvements in gross margin, expense ratio, and profit margin are anticipated for most companies [1] - After excessive competition leading to industry-wide losses for many products in the first half of 2025, industry consolidation is expected, with prices gradually recovering, potentially exceeding reasonable profit margins [1]