Dada is a platform for providing instant delivery service in the same city based on crowdsourcing and mobile Internet. Dozens of cities such as Shanghai, Beijing and Shenzhen have been opened. On 20 15 12 3 1, Dada, a leading O2O transportation platform in China, completed the D round of financing, with a financing amount of about 300 million US dollars. The main investors are DST and Sequoia Capital. 20 16, 16 merged with JD.COM on April 5. JD.COM, the O2O subsidiary of COM. The merged new company maintains independent operation and development. The two main business segments include crowdsourcing logistics platform and supermarket fresh O2O platform.