Investment Rating - The report maintains a "Buy" recommendation for the superconducting materials industry, particularly focusing on high-temperature superconductors [2]. Core Insights - The breakthrough in high-temperature superconducting wire technology is expected to advance the commercialization of Tokamak nuclear fusion devices, which are the mainstream technology for nuclear fusion globally [1][9]. - The market for high-temperature superconducting materials is projected to grow at a CAGR of over 20% from 2023 to 2028, with the market size expected to reach $2.15 billion by 2028, up from $850 million in 2023 [5][28]. - The competitive landscape for second-generation high-temperature superconducting wires is favorable, with key suppliers including Shanghai Superconductor and Eastern Superconductor, which hold significant market shares [5][29]. Summary by Sections 1. What are Superconductors and Superconducting Materials? - Superconducting materials exhibit zero electrical resistance and the ability to expel magnetic fields under certain conditions, significantly enhancing the magnetic field strength in Tokamak devices, thus reducing construction costs [9][10]. 2. Composition, Barriers, and Applications of Superconducting Magnets - Superconducting magnets constitute about 30% of the cost of Tokamak devices, with superconducting wires being the primary cost component [34]. - The main technical barriers in superconducting magnet manufacturing include material performance, conductor technology, winding techniques, and protection against quenching [38]. 3. Company Analysis in the Superconducting Sector - Key players in the superconducting wire segment include: - **Western Superconductor**: Leading in low-temperature superconducting materials and the only supplier of NbTi wire for ITER in China [46]. - **Shanghai Superconductor**: A leader in high-temperature superconducting wire with an IPO in progress, holding over 80% market share domestically [50]. - **Eastern Superconductor**: A subsidiary of Yongding Co., focusing on high-temperature superconducting wire production [64]. - **Lianchuang Optoelectronics**: Engaged in high-temperature superconducting magnet production and has secured contracts for significant projects [69]. - **Xue Ren Co. and Ice Wheel Environment**: Suppliers of helium gas compression systems essential for low-temperature superconducting applications [71][74].