At the sports services exhibition hall of the 2026 China International Fair for Trade in Services (CIFTIS), a visitor serves a ping-pong ball. Behind him, a large screen shows the ball's trajectory with millimeter-level precision - technology that can be used to review disputed calls.

Walk into the ICT-themed exhibition hall at Beijing’s Shougang Park during this year’s China International Fair for Trade in Services (CIFTIS), and the first things to catch the…

At the sports services exhibition hall of the 2026 China International Fair for Trade in Services (CIFTIS), a visitor serves a ping-pong ball. Behind him, a large screen shows the…