(FILES) This photo illustration shows the DeepSeek app on a mobile phone in Hong Kong on January 28, 2025. Chinese startup DeepSeek released a new artificial intelligence model on April 24, 2026, more than a year after it stunned the world with a low-cost chatbot that matched the capabilities of US rivals. (Photo by MLADEN ANTONOV / AFP via Getty Images)

A man walks past a booth of Ningbo Zhongkun Safety Technology Co., Ltd. at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

An unmanned aerial vehicle is seen at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

Exhibitors stand next to industrial valves at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

A man uses binoculars at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

People look at Yuntian's unmanned aerial vehicle YT280 at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

An exhibitor uses a wooden-made drone at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)

People look at Edos's unmanned aerial vehicle JX450 at the National Defense Technology Industrial Equipment and Information Technology Expo in Shanghai on April 23, 2026. (Photo by Jade GAO / AFP via Getty Images)