Core Viewpoint - The submarine cable industry in China is experiencing rapid growth driven by the expansion of offshore wind power and marine energy development, supported by comprehensive government policies and technological advancements [1][6][12]. Industry Overview - Submarine cables are essential infrastructure for connecting power and communication networks across oceans, categorized into submarine communication cables and submarine power cables [2][3]. - The industry is positioned as a strategic resource for supporting the digital transformation of the marine economy and the construction of a global energy internet [6]. Policy Analysis - China's policies, including the "14th Five-Year Plan" for renewable energy, aim to promote the large-scale development of offshore wind power and marine energy, providing a robust support system for the submarine cable industry [6][10]. Industry Chain - The submarine cable industry chain in China includes upstream raw material supply, midstream cable manufacturing, and downstream installation and operation, with leading companies like Zhongtian Technology, Hengtong Optic-Electric, and Dongfang Cable dominating the market [8][12]. Market Demand - The offshore wind power market is the primary driver of submarine cable demand, with installed capacity expected to grow significantly from 9 million kW in 2020 to 41.27 million kW by 2024, reflecting a compound annual growth rate of 46.33% [10][12]. - Marine energy is also a key market, with a target of 400,000 kW installed capacity by 2030, further expanding the demand for high-end submarine cables [11][12]. Current Industry Status - The submarine cable industry in China is in a phase of technological leadership and market expansion, with a projected market size of approximately 230 billion yuan by 2024 [12]. - The industry has achieved significant technological advancements, including a complete technical system covering voltage levels from 220kV to 500kV [12]. Competitive Landscape - The industry exhibits a concentrated oligopoly structure, with the top three companies—Dongfang Cable, Zhongtian Technology, and Hengtong Optic-Electric—holding a combined market share of 87% [13][14]. - International competitors like Prysmian and Nexans dominate the high-end market, while Chinese companies are expanding into emerging markets in Southeast Asia and Africa [13][14]. Future Development Trends - The submarine cable industry is expected to undergo a transformation towards high-end, intelligent, and green technologies, with a focus on dynamic cables and AI operation systems [16]. - The market is anticipated to expand globally, with emerging scenarios such as submarine data center interconnections and marine observation networks contributing to significant growth [17]. - The industry will evolve towards a collaborative ecosystem, enhancing supply chain resilience and establishing international standards [18][19].

Core Viewpoint - The development of marine renewable energy is crucial for sustainable development, with China making significant strides in the field, particularly in wave energy, tidal energy, and ocean thermal energy conversion [4][12]. Industry Development - Marine renewable energy, including tidal, wave, and ocean thermal energy, is a key focus in international energy research and development [4]. - China ranks first in wave energy, second in tidal energy, and third in tidal range energy installed capacity globally, establishing a solid foundation for large-scale utilization [4]. Technical Support and Infrastructure - The National Ocean Technology Center has established a comprehensive technical support system covering resource assessment, equipment testing, planning, and policy research for marine energy development [4][6]. - The center has developed four national-level marine testing sites, providing specialized testing services for marine energy technologies [9]. Research and Data Collection - Since 2022, the center has focused on large-scale utilization of marine energy, completing nearly 20 voyages and gathering data from 21 observation sites [7]. - The center has expanded its assessment of marine energy resources to cover 3 million square kilometers of jurisdictional waters, enhancing understanding of resource distribution and development potential [7]. Standardization and Policy Development - The center has developed over 30 national and industry standards in the marine energy sector, accounting for 70% of the total standards in this field [11]. - A guiding opinion was issued to promote large-scale marine energy utilization, aiming for an installed capacity of 400,000 kilowatts by 2030 [13][14]. International Cooperation - The center has actively participated in international organizations and forums, enhancing cooperation and showcasing China's commitment to green development [20]. - The establishment of the China Ocean Renewable Energy Management Service Platform facilitates the collection and dissemination of marine energy data and information [19].

Group 1 - The core viewpoint emphasizes the need for high-quality development of the marine economy in China, aiming for a unique path towards maritime strength [1] - In 2024, China's marine economy is projected to exceed 10 trillion yuan for the first time, indicating a strong growth trend in marine industries [1] - The delivery of the first domestically built 16,000 TEU methanol dual-fuel container ship marks significant breakthroughs in the construction of large methanol dual-fuel vessels [1] Group 2 - The "Deep Sea No. 1" Phase II project has achieved full production, with a maximum daily output of 15 million cubic meters, making it the largest offshore gas field in China [1] - The integration of production, learning, and research has enhanced the capability to construct various types of deep-water oil and gas equipment tailored to different oil fields and sea areas [2] - New marine industries, such as marine oil and gas and offshore wind power, are showing positive developments, with continuous breakthroughs in marine pharmaceuticals and biological products [2] Group 3 - The first domestically developed LHD megawatt tidal energy generator is now operational, utilizing a modular technology approach to enhance tidal energy utilization [3] - China is focusing on the large-scale utilization of marine energy, aiming to promote new technologies and models in marine energy development [3] - The establishment of the first marine blue finance platform in Jiangsu aims to address the financing challenges faced by marine enterprises [4] Group 4 - The blue finance platform offers specialized financial products like blue loans and blue insurance, facilitating smoother financing for enterprises [4] - Guangdong province is striving to transition from a marine big province to a marine strong province, aiming to create a modern marine economic development hub [4] - The continuous optimization of marine industry structure and enhancement of technological innovation capabilities are driving forces for China's economic development [4][5]