A staff member displays the HQ Intelligent System (HIS) at the exhibition area of Zhongguancun Forum in Beijing, capital of China, May 27, 2023. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)

This photo taken on May 27, 2023 shows the HQ Intelligent System (HIS) at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)

This photo taken on May 27, 2023 shows a Hyundai hydrogen fuel cell vehicle for display at the exhibition center of Zhongguancun National Independent Innovation Demonstration Zone in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)

This photo taken on May 27, 2023 shows a new energy vehicle displayed at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Ren Chao)

This photo taken on May 27, 2023 shows the HQ Modular Electric (HME) at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Ren Chao)

This photo taken on May 27, 2023 shows a Hyundai hydrogen fuel cell vehicle for display at the exhibition center of Zhongguancun National Independent Innovation Demonstration Zone in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)

This photo taken on May 27, 2023 shows the HQ Modular Electric (HME) at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Ren Chao)

This photo taken on May 27, 2023 shows the HQ Intelligent System (HIS) at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Ren Chao)

People visit the exhibition center of Zhongguancun National Independent Innovation Demonstration Zone in Beijing, capital of China, May 27, 2023. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)

This photo taken on May 27, 2023 shows a new energy vehicle displayed at the exhibition area of Zhongguancun Forum in Beijing, capital of China. New energy vehicles and relevant products take the spotlight at this year's Zhongguancun Forum (ZGC Forum). (Xinhua/Zhang Chenlin)