US President Donald Trump on Friday concluded his state visit to China of less than 48 hours without substantial announcements on the main points of the bilateral agenda, although he described the encounter as "very successful" and "unforgettable" and said he had reached "fantastic" trade deals whose details were not disclosed. The final day of the trip, held at Zhongnanhai, the residence of the Chinese Communist Party leadership, produced as its most visible outcome an offer by Chinese Presiden