方正证券：商业化进程有望加速 关注可控核聚变超导材料/磁体的投资机会

Core Viewpoint - The market share of high-temperature superconducting materials is expected to gradually expand due to the ongoing development and application of superconducting cables and controllable nuclear fusion, with ReBCO tape promising significant cost reductions and broad commercial prospects [1][2]. Group 1: Superconducting Materials - Superconducting materials exhibit zero resistance and complete diamagnetism, making them valuable in various applications including power energy, medical equipment, transportation, quantum information computing, defense industry, and scientific research [2]. - Currently, low-temperature superconducting materials account for over 90% of the global superconducting materials market, while high-temperature superconducting materials have limited market application due to technological constraints [2][3]. - The ITER project indicates that superconducting magnets constitute 28% of the total cost, highlighting their critical role in Tokamak devices [2]. Group 2: High-Temperature Superconductors - ReBCO tape is expected to significantly reduce production costs compared to first-generation high-temperature superconductors, showing great potential in the development of superconducting magnet systems operating above 16T@4.2K [1][2]. - High-temperature superconductors can operate at higher temperatures and possess greater thermal inertia, making them more robust and suitable for complex and harsh environments, thus expanding their application range [3]. Group 3: Related Companies and Opportunities - Key companies involved in the nuclear fusion supply chain include Guoguang Electric, Hezhong Intelligent, and Lianchuang Optoelectronics, focusing on various components and systems [4]. - Companies specializing in superconducting magnets include Yongding Co., Dongfang Tantalum, and Xibu Superconductor, which produce high-temperature and low-temperature superconducting materials [4]. - The power supply sector includes companies like Yingjie Electric and Xu Guang Electronics, which provide essential components for nuclear fusion projects [4].