Core Viewpoint - The negative thermal expansion alloy materials industry is in the early stages of technological breakthroughs and industrial exploration globally, with only a few specialized low-expansion alloys being applied in military and aerospace sectors. The market in China is expected to grow significantly, reaching approximately 400 million yuan by 2024, driven by advancements in new information technology and commercial aerospace [1][10]. Industry Overview - Negative thermal expansion alloys are materials that exhibit a negative coefficient of thermal expansion (CTE) within specific temperature ranges, meaning they contract as temperature increases. This behavior is contrary to common materials and is typically due to unique crystal structures or electronic effects [2]. - The industry can be categorized into anisotropic negative expansion alloys and isotropic negative expansion alloys, each with distinct properties and applications [2]. Development History - The Chinese negative thermal expansion alloy industry has developed over 40 years, progressing through stages of basic research, technological breakthroughs, and industrial applications. Key milestones include the establishment of preparation technologies and the development of new alloy systems [5]. Policy Environment - The Chinese government has implemented several strategic policies to support the development of high-performance alloy materials, recognizing their importance in modern industrial systems and emerging industries [6]. Industry Chain - The industry has formed a relatively complete ecosystem, with upstream raw material supply, midstream processing, and downstream applications in high-end sectors such as aerospace and precision instruments [7]. Current Market Analysis - The global market for negative thermal expansion alloys is still in the early stages, with significant technical barriers limiting mass production capabilities. In China, companies like Antai Technology and Ningbo Huancai Star are making strides in developing low-expansion alloy foils, potentially breaking the monopoly of Japanese firms in the display materials sector [10][12]. Competitive Landscape - The industry is characterized by a "technology-driven + scenario segmentation + policy support" competitive landscape. Companies are leveraging regional collaboration and technological breakthroughs to accelerate domestic replacement processes and move towards high-end, large-scale development [15]. Future Trends - The demand for negative thermal expansion alloys is expected to diversify, driven by the growth of emerging industries such as 5G communication and commercial aerospace. The industry is likely to see a shift towards high-end, customized applications [18][19]. - The industry will also focus on green manufacturing and circular economy practices, aiming to reduce carbon emissions and enhance sustainability through innovative production techniques [20].