How to Sell on Alibaba.com: Trademor Offers An Exclusive Course in Partnership with Extreme Commerce Trademor, one of the authorized channel partners of Alibaba.com, has become the first company to release an exclusive course on the new VBC – How to Sell on Alibaba.com. In the course, instructor Aqib Ali offers detailed insight into how the world’s largest B2B marketplace operates. Also, how sellers can start a business on the platform and expand their reach to a global audience of buyers. If you’re a Pakistani working in the E-commerce field, chances are you’ve heard of Extreme Commerce (EC), Pakistan’s number 1 E-commerce company, and their widely talked-about course, the Video Boot Camp (VBC).