Ge Long Hui·2025-10-27 02:20Core Viewpoint - The A-share market has seen a significant rally in photoresist concept stocks, driven by recent breakthroughs in the photoresist field in China [1][2]. Group 1: Stock Performance - Jingrui Electric Materials (300655) surged over 17%, with a market capitalization of 18.9 billion and a year-to-date increase of 89.04% [2]. - Jinhua New Materials (920015) rose more than 14%, with a market cap of 7.32 billion and a year-to-date increase of 43.67% [2]. - Other notable performers include Jiashan Co. (920489) and Wanyun Co. (002643), both increasing over 10% [1][2]. Group 2: Industry Breakthrough - A research team led by Professor Peng Hailin from Peking University has achieved a breakthrough in the photoresist field by using cryo-electron tomography to analyze the micro-3D structure of photoresist molecules in a liquid phase environment [2]. - This research guides the development of an industrialization plan that significantly reduces photoresist defects [2].