Hong Kong's benchmark Hang Seng index slumped a further 3.29 per cent Thursday, amid concerns that rising losses in the US subprime, or higher risk, mortgage market would have a wider Asian fallout, DPA reported. The index closed down 703 points at 20,672. It has lost 6 per cent in the past two days. Turnover was 104.94 billion Hong Kong dollars (13.45 billion US dollars). The biggest losers among Hang Seng constituent stocks were China Resources, which fell 8.41 per cent to close at 25.60 Hong Kong dollars and Citic Pacific, which shed 7.75 per cent to finish at 33.35 Hong Kong dollars. But it was not all bad news as trading group Li and Fung gained 5.21 per cent to end the day at 26.25 Hong Kong dollars.