IRNA reported that members of the presidium of Iran's parliament were sworn in at a ceremony presided over by Speaker Mohammad Bagher Ghalibaf; 187 deputies attended remotely and 14 attended in person.

China launched a satellite internet technology test satellite on May 31 at 02:07 from the Xichang Satellite Launch Center aboard a Long March 2D rocket; the satellite reached its designated orbit and the mission was declared successful. The satellite will test direct-to-device mobile broadband and space-to-ground network integration. The launch was the 646th flight of the Long March series of carrier rockets.

May 30, Baotou — A pilot demonstration for hydrogen-powered two-wheelers launched, putting 1,000 Northern Rare Earth-developed "Xixiao Hydrogen" rare-earth hydrogen scooters into public, municipal and convenience-service operation. The scooters use a self-developed rare-earth solid-state hydrogen-storage alloy with low-pressure solid-state hydrogen storage and include an intelligent monitoring platform that tracks pressure, temperature and other safety metrics in real time. Northern Rare Earth plans phased, batch rollouts to reach a cumulative 10,000 demonstration vehicles.