This newsletter article by IT journalist Takemaki Makino introduces Didi Chuxing, a major Chinese mobility companythat began with a taxi-hailing app and has expanded to include various services like ride-sharing, bike-sharing, and on-demand buses, with ambitions towards implementing MaaS (Mobility as a Service). The article highlights Didi's current testing of robotaxis in Shanghai and its goal of deploying one million robotaxis by 2030, positioning itself as a leader in the evolving landscape of transportation services in China. It also provides a historical overview of Didi's formation and early challenges, including intense competition with rivals like Kuaidi Dache and Uber, as well as operational and safety issues. The text concludes by discussing Didi's advanced platform algorithms and AI integration for optimizing ride dispatchand considering the different models for MaaS implementation, including Didi's integrated approach versus multi-company collaborations seen elsewhere.