Tony Zhang is promoting Fortune Data, an advertising platform that provides a one-stop solution for Western businesses to cost-effectively engage local Chinese consumers. It uses big data, business knowledge, and algorithms to allow programmatic and real-time bidding on web and mobile ads in North America and Europe targeting the growing overseas Chinese market. Fortune Data makes money by taking a 20% cut of ad costs. The $400 billion overseas Chinese consumer market is largely untapped and represents a major opportunity for growth.