An index tracking Stock Connect buying of 40 mainland drug firms gains 9 per cent in a week as China's industry heft grows Chinese onshore investors raised their investments in Hong Kong-listed drug makers through the cross-border trading link over the past week,

By Donny Kwok and Yantoultra Ngui HONG KONG/SINGAPORE, Feb 9 (Reuters) - China's Montage Technology jumped 57% in its Hong Kong trading debut on Monday after the world's biggest memory interconnect chip supplier raised HK$7.