旋极信息：江苏易容光电科技有限公司涉及光通信、光模块制造业务，目前销售占比很小

Group 1 - The core inquiry from investors pertains to Jiangsu Yirong Optoelectronics Technology Co., Ltd.'s involvement in the optical communication and optical module business [2] - The company confirmed that Jiangsu Yirong Optoelectronics is engaged in the manufacturing of optical communication and optical modules, although the current sales proportion is quite small [2]