There is no difference, they are all doing B2B. The difference is that HC started to make magazines, and Ali has been doing the internet. Ali's network profit mainly comes from China suppliers of foreign trade products, and domestic Chengxin mainly sells fast-selling products; HC is engaged in industry, specializing in the production of heavy industry products. It depends on what your product is. If it is industrial products such as safety and machinery, look for HC; If it is clothing, shoes and hats, etc. , ask Ali ...