英杰电气(300820.SZ)：目前公司核聚变电源相关业务的服务对象均为国内客户

Group 1 - The company, Yingjie Electric (300820.SZ), is involved in the research and sales of power products related to controllable nuclear fusion [1] - The company has established partnerships with several core domestic clients in the nuclear fusion field [1] - Currently, the company's nuclear fusion power-related business serves only domestic clients [1]