Core Viewpoint - The establishment of China's first EUV photoresist standard is expected to drive significant movements in the photoresist sector, with several related stocks experiencing notable price increases following the announcement [2][3]. Group 1: Industry Developments - The proposed standard, titled "Testing Methods for Extreme Ultraviolet (EUV) Photoresist," was publicly announced on October 23 and will be open for comments until November 22 [2][5]. - The drafting organizations include Shanghai University, Zhangjiang National Laboratory, Shanghai Huali Integrated Circuit Manufacturing Co., and Shanghai Micro Electronics Equipment (Group) Co [2][5]. - The standard aims to fill the technical standard gap in the domestic market and provide a unified testing methodology for evaluating the performance of EUV photoresists [3]. Group 2: Market Impact - Following the announcement, stocks of companies involved in the photoresist sector saw significant gains, with Wanrun Co. reaching the daily limit increase and Jingrui Electric Materials leading the gains [2][8]. - The semiconductor materials sector is currently experiencing a phase of demand expansion and domestic substitution, with photoresists benefiting from increased wafer production and supportive policies for domestic production [7]. - It is projected that the market size for photoresists in mainland China will grow by 6.8% year-on-year to reach 17.9 billion yuan by 2025 [7]. Group 3: Technological Advancements - A research team from Peking University has utilized cryo-electron tomography to analyze the micro-3D structure and entanglement behavior of photoresist molecules in liquid environments, which could lead to significant reductions in lithography defects [6]. - This technological advancement is expected to enhance defect control and yield improvement in critical processes such as lithography, etching, and wet cleaning in advanced manufacturing [6].