银河电子：嘉盛电源为公司参股公司，其主营业务为客户提供充电桩相关产品和服务

Group 1 - The core point of the article is that Galaxy Electronics has confirmed that its subsidiary, Jiasheng Power, is involved in providing products and services related to charging piles [2][3] - Jiasheng Power is a joint venture of the company, focusing on the charging pile business [2]