China shares closed at their highest in nearly six weeks in robust volumes on Monday, as investors cheered a litany of policy announcements seen favourable to earnings growth for sectors from autos to insurers and infrastructure, Reuters reported. The Shanghai Composite Index ended up 2 percent at 2,086.1 points, its highest since Jan. 2, while the CSI300 of the biggest Shanghai and Shenzhen A-share listings jumped 2.5 percent to its highest since Jan. 3. Gains on Monday came in the strongest Shanghai volumes in more than two months ahead of a fresh batch of macroeconomic data later in the week. The People's Bank of China's two weekly scheduled open market operations will also come into focus, with maturities due to drain 450 billion yuan ($74.22 billion) this week.