The 25th China International Fair for Investment and Trade in southern China's city of Xiamen first launched an exhibition on the low-altitude economy – a $491 billion market ready for takeoff. Roadshows, workshops and flying classes are all part of the action, showcasing two key applications: logistics transport and sightseeing tourism. For the low-altitude economy to really take off, investment in both ground and aerial infrastructure is key. This year, the fair focuses on making a major push in building ground facilities for low-altitude operations in China.