China and Hong Kong stocks fell on Thursday in thin turnover, tracking global market weakness, as worries grow that surging infections in China could trigger fresh outbreaks elsewhere after Beijing dropped zero-COVID policy and reopened economy. ** China’s blue-chip CSI300 index fell 0.4% to 3,855.24 points by the lunch break, while the Shanghai Composite Index lost 0.3% to 3,077.80 points. In Hong Kong, the Hang Seng index dropped 1.1%.