北交所策略 主网补短板周期启动下的结构性机会 投 资 投 资 北交所专题报告 2026 年 2 月 26 日 分析师：李紫忆 S0340522110001 电话：0769-22177163 邮箱：liziyi@dgzq.com.cn 策 略 策 略 资料来源：ifind，东莞证券研究所 行 业 研 究 证 行 业 研 究 证 券 投资要点： 风险提示：流动性风险；政策出台不及预期；企业业绩不及预期。 本报告的风险等级为中高风险。 本报告的信息均来自已公开信息，关于信息的准确性与完整性，建议投资者谨慎判断，据此入市，风险自担。 请务必阅读末页声明。 推荐 SAC 执业证书编号： 电网投资规模扩容+需求旺盛，行业进入高景气周期。国家电网"十 五五"4万亿元固定资产投资落地，较"十四五"提升40%，叠加新 能源大基地外送与跨区消纳需求，电网资本开支进入明确扩张期。 投资节奏或呈现"前高"特征，2026年特高压重点工程加速开工， 核准与落地进程持续前置，行业需求放量确定性强，为产业链上下 游带来长期成长空间。 北证 50 指数走势 主网优先政策主导，特高压成核心增长引擎。"十五五"电网建设 聚焦"主网强骨架"，特高压 ...

Group 1 - The strong performance of the UHV (Ultra High Voltage) sector is driven by a significant investment plan of 4 trillion yuan by the State Grid during the 14th Five-Year Plan, representing a 40% increase compared to the previous plan [1] - The UHV sector index rose by 5.06% to 2361.96 points, with total trading volume reaching 78.6 billion yuan, and several stocks, including Electric Power Research Institute and Hancable, hitting the daily limit [1] - The investment will enhance system regulation capabilities, optimize pumped storage station layouts, and support large-scale development of new energy storage, improving the integration and consumption of renewable energy [1] Group 2 - A global shortage of electrical grid equipment is exacerbated by the rising demand from AI data centers, with a 30% supply gap for large power transformers, particularly in North America and the Middle East [2] - The global market for transformers related to AI data centers is projected to reach approximately 6 billion yuan in 2024 and 26.4 billion yuan in 2027, with a compound annual growth rate (CAGR) of about 64% [2] - Chinese companies are leveraging their full industry chain advantages to fill the global supply gap, with recent contracts indicating a focus on supplying products for overseas AI computing power parks [2] Group 3 - Goldman Sachs has initiated coverage on Chinese companies like Suyuan Electric and Huaming Equipment, noting that the global equipment shortage is accelerating the overseas expansion of these firms [3] - The investment in new power systems and UHV technology is expected to continue increasing over the next 3 to 5 years, with about 40% of the investment from the State Grid and Southern Grid during the 14th Five-Year Plan directed towards upgrading and expanding transmission and transformation equipment [3] - The demand for large-capacity power transformers and converter transformers is expected to rise significantly due to the construction of UHV AC ring networks and DC channels [3]

Core Insights - The ultra-high voltage (UHV) industry is a key carrier for energy transition, driven by the urgent demand for power delivery from western renewable energy bases under the "dual carbon" goals, leading to accelerated UHV construction [1][19] - Investment during the 14th Five-Year Plan period is expected to remain stable, with ample planned projects providing high certainty for upstream equipment performance [1][19] Group 1: UHV Construction and Demand - UHV construction aims to address the imbalance of electricity resources and demand in China, with resources concentrated in inland areas and demand in urbanized eastern coastal regions [2] - The recent peak in domestic UHV construction began in 2022, with approvals for 5, 5, 4, and 5 projects in 2022, 2023, 2024, and 2025 respectively, driven by the demand for power delivery from renewable energy bases [9] - The National Energy Administration has emphasized the importance of grid investment for renewable energy consumption, accelerating the construction of supporting projects [9] Group 2: UHV Industry Chain - The UHV industry chain is complete, divided into three main segments: upstream (core raw materials, special insulation materials, key components), midstream (core equipment manufacturing), and downstream (final users and investors like State Grid and Southern Grid) [4] - Key players in the midstream include companies like State Grid NARI, XJ Electric, Pinggao Electric, and TBEA, focusing on both DC and AC UHV technologies [4] Group 3: Global and Domestic Investment Trends - Global UHV investment is entering an upward cycle, with a projected CAGR of 6.7% from 2021 to 2024, driven by the integration of renewable energy and aging infrastructure [6] - The State Grid's fixed asset investment plan for the 14th Five-Year Plan has increased significantly to 4 trillion yuan, a 40% increase from the previous plan, focusing on UHV DC transmission projects [13] Group 4: Competitive Landscape - The competitive landscape of the UHV equipment market is stable, with high technical barriers and a consistent market share among core suppliers [15] - Major suppliers include State Grid NARI, XJ Electric, and China XD Electric, with significant shares in both DC and AC core equipment [16] Group 5: International Expansion Opportunities - The UHV industry is entering a significant international expansion phase, with China's mastery of core UHV technology and extensive experience in construction and operation [17] - Opportunities for international expansion are driven by demand for grid upgrades and renewable energy integration in countries along the Belt and Road Initiative and in developed regions [18] Group 6: Investment Logic - The investment logic in the UHV industry is clear, with urgent power delivery needs from western renewable energy bases driving continuous construction, supported by stable investment and ample project planning during the 14th Five-Year Plan [19]

Core Viewpoint - Several companies have announced significant developments, including potential delisting, investment activities, and procurement wins, which may impact their financial performance and market positioning [3][4][5][6][7][8][9][10][11][12][13][14][15][17][18][19] Company Announcements - ST Lifan may face forced delisting due to significant false reporting in annual reports, with a total of 592 million yuan in false revenue for 2021 and 2022, representing 50.91% of reported revenue for those years [3] - Zhongji Xuchuang's investment fund has completed registration, indicating compliance with legal requirements [4] - Yatong Precision's investment in a private fund has been terminated due to failure to meet investment conditions, leading to the fund's dissolution [5] - Saifutian's subsidiary will distribute 20 million yuan in dividends, enhancing the parent company's financials [6] - Yatong Co. plans to invest 36 million yuan to establish a joint venture in the energy sector, indicating strategic growth [7] - Hangya Technology intends to invest up to 70 million USD (approximately 500 million yuan) to establish subsidiaries in Singapore and Malaysia, aiming to strengthen international partnerships [8] - Huangshan Tourism plans to lease assets in the Huangshan scenic area for 1.27 billion yuan over ten years [9] Share Buybacks - Jianbang Co. plans to repurchase shares worth between 15 million and 30 million yuan, with a maximum price of 38 yuan per share [10] - Demai's share buyback price cap has been raised to 45 yuan per share, reflecting a strategic adjustment [11] - Liyuan Information has conducted its first share buyback, acquiring 300,000 shares at prices between 10.1 and 10.15 yuan [12] Shareholding Changes - Yishiji Precision's major shareholder plans to reduce holdings by up to 1.2065% due to personal financial needs [13] - Longqi Technology's major shareholder has completed a 4.09% share reduction, raising 867 million yuan [14] - Digital Certification's major shareholder reduced holdings by 0.48%, part of a previously disclosed plan [15] Procurement Wins - China West Electric's subsidiaries won procurement contracts from the State Grid totaling 2.98 billion yuan [17] - Xujie Electric secured a 1.518 billion yuan procurement project from the State Grid [18] - Pinggao Electric's subsidiaries won contracts worth 773 million yuan from the State Grid, representing 6.24% of projected 2024 revenue [19]

Group 1 - China XD Electric announced on November 28 that it won bids for the 64th batch of procurement by State Grid Corporation for ultra-high voltage projects, with a total bid amount of approximately 2.98 billion yuan [1] - Eight subsidiaries of China XD Electric are among the winning bidders, including Xi'an XD Transformer Co., Ltd. and Changzhou XD Transformer Co., Ltd., for various products such as converter transformers and circuit breakers [1] - The revenue composition for China XD Electric in 2024 is projected to be 97.97% from the power transmission and transformation equipment manufacturing industry, with other businesses contributing 2.03% [1] Group 2 - As of the report, the market capitalization of China XD Electric is 42.7 billion yuan [1]

Core Viewpoint - China Xidian (601179) announced on November 28 that its subsidiaries won bids for the State Grid Corporation of China's 2025 sixth batch procurement, specifically for ultra-high voltage projects, with a total bid amount of 2.98 billion yuan [1] Group 1 - The State Grid Corporation of China released the bid announcement for the fourth equipment procurement of ultra-high voltage projects on November 28 [1] - Eight subsidiaries of China Xidian were identified as successful bidders for various products including converter transformers, AC transformers, and combined electrical appliances [1] - The total amount of the bids won by the company is 2.98 billion yuan [1]

Core Points - China Xidian (601179.SH) announced that eight of its subsidiaries won bids for the State Grid Corporation of China's 2025 sixth batch procurement, which includes high-voltage project equipment [2] - The total bid amount for the project is 2.97967 billion yuan, covering products such as converter transformers and AC transformers [2] - The execution of this project is expected to have a positive impact on the company's future operations, although formal contracts have not yet been signed, leading to uncertainties regarding contract terms and current performance impact [2]

Core Viewpoint - China Xidian (601179.SH) announced that it has won multiple bids in the State Grid Corporation of China's 64th procurement batch for ultra-high voltage projects, with a total bid amount of 2.97967 billion yuan [1] Group 1: Procurement Details - The State Grid Corporation's e-commerce platform published the bid announcement on November 28, 2025 [1] - Eight subsidiaries of the company were identified as successful bidders for various products including converter transformers, AC transformers, and other electrical equipment [1] - The total bid amount for the awarded contracts is 2.97967 billion yuan [1]

Core Insights - The successful transportation of a 201-ton converter transformer to the Shaozhuang ±200 kV converter station in Jiangsu marks the commencement of the electrical installation peak period for the Yangzhou-Zhenjiang ±200 kV DC transmission project [1] - The project is a demonstration of high-voltage AC-DC hybrid grid technology in China, with a total length of approximately 228 kilometers and a transmission capacity of 2.4 million kilowatts upon completion [1] Project Details - The converter transformer has a rated capacity of 234.9 MVA, with dimensions of 7.3 meters in length and 4.9 meters in height, presenting significant transportation challenges [1] - The transportation utilized an innovative "road-water-road" combined transport scheme, developed by the State Grid Jiangsu Electric Power Engineering Consulting Co., which included pre-established safety and technical measures [1] Construction Management - Since the project's initiation, the owner and supervisory personnel from the State Grid Jiangsu Electric Power Engineering Consulting Company have implemented a "color classification" management system for construction tasks, ensuring meticulous control over more than 800 workers [1] - The Shaozhuang converter station has officially entered the installation phase for main equipment such as converter transformers and converter valves [1]

Summary of High Voltage Direct Current (HVDC) Conference Call Industry Overview - The HVDC industry is entering a new construction cycle with the approval of two major projects: the Tibet to Guangdong-Hong Kong-Macao and the Inner Mongolia to Beijing-Tianjin-Hebei lines, with a target of four approvals for the year 2025 [1][3] - Six ongoing DC projects are nearing completion, with two expected to be operational by mid to late 2026, providing support for future HVDC construction [1][5] Key Points and Arguments - **Upcoming Projects**: Several projects are expected to enter the approval phase in the second half of 2025, including the Datarat to Inner Mongolia and Zhejiang HVDC ring network [6] - **Market Demand**: The total bidding amount for HVDC equipment in the first half of 2025 was 2.48 billion yuan, with an anticipated total of 71 billion yuan in bids for the second half, including approximately 16.6 billion yuan for converter valves [7] - **Unstarted Projects**: There are numerous unstarted projects from the 14th Five-Year Plan, which are expected to create significant demand in the early stages of the 15th Five-Year Plan [8] - **Back-to-Back Projects**: Six back-to-back DC projects have been bid on, with a total capacity of approximately 3GW, indicating a positive trend for DC project development [4][9] Additional Important Content - **Market Share**: As of 2023, major players in the HVDC equipment market include China XD Group with a 26% share in converter transformers, and State Grid Corporation with nearly 50% in converter valve systems [12] - **Future Expectations**: The overall sentiment for the second half of 2025 is optimistic, with expectations of improved stock performance for companies involved in HVDC projects, as they are likely to benefit from the release of new orders [13]