Shanghai Comp skids 7.63% to end at 8-month low See Kit Tang | @SeeKit_T The mayhem in Chinese equity markets showed no signs of abating on Tuesday, with the benchmark Shanghai Composite index accelerating its downfall in the final hour of trading to settle below the key 3,000 mark. Japan's Nikkei 225 index was the second-biggest laggard in the region, closing down 4 percent, after turning negative in the afternoon trading session. Earlier in the session, the Tokyo bourse had staged a comeback, alongside most of the other regional stock indices, on the back of bargain hunting in beaten-down stocks...