黑芝麻：上海礼多多从事电商经销代理和代运营业务，其经营业务中有部分项目属于进口跨境电商类型

Group 1 - The company has a subsidiary, Shanghai Liduo E-commerce Co., Ltd., engaged in e-commerce distribution and operation services [2] - The subsidiary's operations include some projects that fall under the category of imported cross-border e-commerce [2] - Currently, the revenue contribution from cross-border e-commerce activities is relatively small compared to the company's total revenue [2]