Core Viewpoint - The development of 5G and the ongoing research into 6G technologies are heavily reliant on key materials, with indium phosphide emerging as a crucial component in the semiconductor industry, particularly in China’s efforts for domestic substitution [1][2]. Group 1: Company Overview - Shaanxi Yinjie Semiconductor Co., Ltd. has developed a complete set of production equipment, processes, and control systems for indium phosphide with independent intellectual property rights, addressing the technical challenges in the synthesis and preparation of indium phosphide materials [1][2]. - The company successfully produced its first indium phosphide polycrystalline rod in 2021, achieving a purity level above 99.9999% (6N grade) and meeting international standards for electronic mobility and carrier concentration [2][3]. - The production capacity of indium phosphide materials is now sufficient, providing stable quality and high batch consistency, which ensures reliable material supply for downstream enterprises [2][3]. Group 2: Industry Development - The research and development expenditure of Shaanxi Yinjie consistently exceeds 15%, resulting in 19 patents and 5 software copyrights, indicating a strong commitment to innovation [3]. - The company is currently focused on developing large-size indium phosphide crystal synthesis technology, which is expected to reduce material costs across the entire industry chain by over 15% [3]. - The copper industry is transitioning towards a focus on the optoelectronic industry, with the establishment of the Optoelectronic Integrated Industry Park, which has attracted over 30 high-tech enterprises, forming a complete industrial chain [4]. - The copper optoelectronic industry is projected to achieve a production value of 1.394 billion yuan in 2024, reflecting a year-on-year growth of 26.8% and an increase in added value of 39.2% [4].