People view models of electric multiple unit (EMU) trains on display at the 26th China Beijing International High-tech Expo in Beijinghoffreecoins2021, capital of China, July 13, 2024hoffreecoins2021. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

This photo taken on July 13, 2024 shows a vertical take-off and landing drone on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People visit the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People view an unmanned tractor on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

This photo taken on July 13, 2024 shows a model of the High Energy Photon Source (HEPS) on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People view an unmanned tractor on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People view a new energy vehicle on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

This photo taken on July 13, 2024 shows a green hydrogen production model of Sinopec on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People watch a robot playing table tennis at the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

This photo taken on July 13, 2024 shows an industry-level 3D printer on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People visit the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People view a model showing the detection and exploitation of deepwater oil and gas from China National Offshore Oil Corporation (CNOOC) on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

This photo taken on July 13, 2024 shows a mini-LED backlight driver chip on display at the 26th China Beijing International High-tech Expo in Beijing, capital of China. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)

People visit the 26th China Beijing International High-tech Expo in Beijing, capital of China, July 13, 2024. The event opened here on Saturday, attracting more than 300 enterprises and organizations from home and abroad. (Xinhua/Zhang Chenlin)