凯淳股份：公司的主营业务是为品牌提供综合性的电子商务服务以及客户关系管理服务

Group 1 - The core business of the company is to provide comprehensive e-commerce services and customer relationship management services for brands [1] - The company engages in cross-border e-commerce business, including online sales services on platforms like Tmall International [1]