** At the close, the Shanghai Composite ** Gains were led by tech shares, with Shanghai's tech-focused STAR50 index jumping 3.49% and CSI Info Tech sub-index bouncing 2.88%. ** China's CSI all share semiconductor, a sub-index tracking the sector, rose 4.68%. ** Chinese e-commerce company Alibaba said on Wednesday it plans to open its first data centres in Brazil, France and the Netherlands as it accelerates its global strategy for artificial intelligence. The Hong Kong-listed shares finished the session u ...