容大感光：公司目前与濮阳惠成的合作仅限于向其采购原材料，暂未与其开展光刻胶中间体的联合研发

Group 1 - The company, Rongda Photoresist (300576.SZ), confirmed that its current collaboration with Puyang Huicheng is limited to the procurement of raw materials and does not include joint research and development of photoresist intermediates [1] - There are no current plans for additional cooperation beyond raw material procurement with Puyang Huicheng [1]