Theme: The theme of the 9th China (Changchun) International Automobile Expo is "Green, Dynamic and Automobile City". This theme expounds the development trend of global automobile industry towards green energy and low-carbon environmental protection, and the goal of building Changchun into a world-class automobile industry base and an international automobile city. Purpose: The purpose of this auto Expo is to "revitalize the auto industry and build an international auto city". It aims to make the 9th China (Changchun) International Automobile Expo a first-class professional automobile exhibition in China, highlighting the characteristics of internationalization, specialization and branding, making it a platform for automobile trade, technical exchange, investment cooperation and cultural integration, and playing a greater role in accelerating the construction of a world-class automobile industry base and building Changchun International Automobile City.