Core Insights - China Railway Construction Corporation (CRCC) recently won significant contracts while one of its subsidiaries was suspended from military procurement, leading to stable stock performance [1] Recent Events - On February 10, 2026, CRCC announced winning 10 major projects, each valued over 1.5 billion yuan, totaling 45.142 billion yuan, which represents 4.23% of the company's audited revenue for 2024 [2] - On the same day, the military procurement website announced that the subsidiary China Railway 16th Bureau Group Co., Ltd. was suspended from participating in military material engineering service procurement due to alleged violations, effective from February 10, 2026 [2] - On February 8, 2026, the company reported that its domestic "Deep Sea Space Station" technology successfully completed high-pressure operations at a depth of 75 meters in the Yongzhou Railway's Jintang underwater tunnel, overcoming technical limitations [2] - The absence of China Railway 23rd Bureau in the recent major project announcements raised concerns about its operational capabilities [2] Stock Performance - Over the past 7 days (as of February 12, 2026), CRCC's stock price fluctuated within a range of 0.97%, with a change of 0.14% [3] - The closing price on February 12 was 7.24 yuan, with a daily change of 0.00% and a trading volume of 346 million yuan [3] - On February 12, there was a net inflow of 1.3575 million yuan from institutional investors, while retail investors experienced a net outflow of the same amount [3] - During the same period, the construction decoration sector slightly declined by 0.01%, while the infrastructure sector increased by 0.01%, and the Shanghai Composite Index rose by 0.05% [3] Financial Analysis - On February 12, 2026, CRCC disclosed its major operating data for Q4 2025, reporting a total new contract value of 3,076.497 billion yuan for the year, marking the fourth consecutive year exceeding 3 trillion yuan [4] - Among these, the total contract value for major projects was 221.971 billion yuan, accounting for 20.80% of the 2024 revenue [4] - There was a disparity in the number of contracts won by subsidiaries, with China Railway 12th and 14th Bureaus each securing 9 major projects, while China Railway 23rd Bureau only won 1 [4]

Group 1 - The core achievement of the "Deep Sea Space Station" is the successful application of domestically developed shield tunneling technology under high-pressure conditions, marking a significant advancement for future underwater tunnel construction and deep underground space development [1][2] - The "Deep Sea Space Station" consists of multiple functional modules, including the Ninghai (living) cabin, the Tanhai (shuttle) cabin, and the Zhenhai (control) cabin, capable of simulating seabed high-pressure environments with a maximum operational depth of 100 meters [1][2] - The project has successfully completed 22 consecutive days of operations, allowing for the inspection and replacement of 46 cutting tools, significantly enhancing the efficiency of the tunneling process [3] Group 2 - The Ningbo-Zhoushan Railway's Jintang underwater tunnel is a key project, with a total length of 16.18 kilometers, including an 11.21-kilometer underwater shield section, facing challenges from alternating soft and hard strata [2] - The "Deep Sea Space Station" integrates deep-sea saturation diving technology with underwater shield tunneling, representing a major innovation through cross-domain technology fusion [2] - The effective working time for pressure-maintained operations has increased from 40 minutes to 8 hours, enabling multiple teams to work in a 24-hour cycle, with the longest operational period reaching 28 days [3]

Core Insights - The construction of the world's longest underwater high-speed rail tunnel, the Yongzhou Railway, faces significant challenges, particularly with the "Yongzhou" shield machine encountering extreme geological conditions and high water pressure [1][3][5]. Group 1: Technical Challenges - The Yongzhou shield machine must navigate through 24 instances of soft and hard geological layers, with nearly 70% of the tunnel comprising unfavorable strata [3]. - The maximum rock strength encountered is 191 MPa, over six times that of ordinary concrete, and the tunnel's maximum depth reaches 78 meters, with a water-soil pressure of up to 8.5 bar [3][5]. - Frequent wear on the cutting tools necessitates manual intervention for tool replacement, with over 2,900 tools replaced to date [5][8]. Group 2: Innovative Solutions - To address the challenges, the "Deep Sea Space Station," a domestically developed shield saturation pressure entry technology, was created, allowing for safe operations at depths exceeding traditional limits [9][11]. - This technology integrates mature saturation diving techniques with shield tunneling, enabling workers to breathe a specific gas mixture and remain at depth without increasing gas absorption, thus stabilizing decompression times [11][16]. - The "Deep Sea Space Station" consists of multiple modules, allowing workers to live under equal pressure to the seabed and perform maintenance tasks efficiently [14][16]. Group 3: Project Progress - The "Deep Sea Space Station" successfully completed its first operation at a depth of 75 meters, conducting continuous work for 22 days and replacing 46 tools, which is crucial for the ongoing tunneling efforts [14][18]. - The Yongzhou shield machine has now advanced over 3,000 meters, completing more than 60% of its tunneling tasks, with expectations to achieve precise underwater alignment by the end of the year [18].

Investment Rating - The report does not explicitly state an investment rating for the deep-sea technology industry. Core Insights - The 2025 government work report first mentions deep-sea technology as an emerging industry, indicating its importance alongside commercial aerospace and low-altitude economy [12][15]. - Various regions, including Hainan and Shandong, have introduced policies to accelerate the development of deep-sea technology, with plans to enhance innovation and build a comprehensive industrial chain [15][17]. - The development of deep-sea technology is crucial for resource exploration and ensuring security in deep-sea environments, as it encompasses advanced technologies for exploration, resource development, and environmental research [22][25]. Summary by Sections Section 1: Government Initiatives - The 2025 government work report positions deep-sea technology as a priority emerging industry, with significant policy support from various provinces [12][15]. - Specific plans include enhancing deep-sea technology innovation platforms and building a robust industrial ecosystem [15][17]. Section 2: Importance of Deep-Sea Technology - Deep-sea areas, defined as waters deeper than 1000 meters, hold vast strategic resources and are critical for national security [19][22]. - The report highlights the rich resources in deep-sea oil, gas, and minerals, emphasizing the need for technological advancements to exploit these resources sustainably [25][29]. Section 3: Industry Growth and Investment - The national marine production value surpassed 10 trillion yuan in 2024, with deep-sea equipment identified as a key growth area [37][40]. - Investment in the deep-sea equipment sector has shown rapid growth, with significant increases in funding from 19 million yuan in 2021 to 75 million yuan in 2024 [41][42]. Section 4: Underwater Defense Systems - The report discusses the importance of submarines and unmanned underwater vehicles (UUVs) in modern underwater defense systems, highlighting their roles in surveillance and combat [46][57]. - UUVs are noted for their autonomy and capability to perform various missions, with a projected market space of 53.1 billion USD for UUVs in the U.S. Navy alone over the next decade [64][66]. Section 5: Ocean Observation Networks - The establishment of underwater observation networks is emphasized as a critical infrastructure for continuous marine monitoring, with significant investments from multiple countries [72][76]. - China has initiated its underwater observation network projects, enhancing its capabilities in marine data collection and environmental monitoring [76][81]. Section 6: Deep-Sea Space Stations - The concept of deep-sea space stations is introduced as a long-term underwater research platform, with ongoing developments in China aimed at creating advanced operational capabilities [86][91]. - These platforms are expected to support comprehensive experiments and resource development in deep-sea environments [86][91].