A heavy-duty drone helps farmers in Wushan county, Southwest China's Chongqing Municipality to transport newly harvested cabbage from fields on April 8, 2025. The Civil Aviation Administration of China estimates that the country's low-altitude market will soar from 500 billion yuan ($68.41 billion) in 2023 to 1.5 trillion yuan in 2025, according to the Xinhua News Agency. Photo: VCG