Article content SHANGHAI — China and Hong Kong stocks reversed course to trade lower on Monday as a lower-than-expected 2021 economic growth target from Beijing sparked concerns that Chinese officials could tighten policy to rein in lofty valuations. ** The CSI300 index fell 1.9% to 5,162.22 points at the end of the morning session, while the Shanghai Composite Index lost 1.0% to 3,466.51 points. We apologize, but this video has failed to load. Try refreshing your browser, or China, HK stocks fall on worries over policy tightening Back to video ** The Hang Seng index dropped 1.3% to 28,708.93 points, while the Hong Kong China Enterprises Index lost 1.2% to 11,154.90. ** Leading the declines, the CSI300 consumer staples index and the CSI300 healthcare index slumped 3.7% and 3.4%, respectively, while the Hang Seng tech index tumbled 4.8%.