Chinese shares plunged more than 6 percent to 14-month lows on Tuesday after oil prices dropped again, reviving concerns about global growth and prompting a sell-off in the world’s equity markets. Battered by a late selling frenzy, the benchmark Shanghai Composite Index .SSEC ended down 6.4 percent at 2749.79 points, its lowest close since Dec. 1, 2014. The CSI300 index .CSI300 of the largest listed companies in Shanghai and Shenzhen dropped 6 percent to 2940.51, also its lowest since the beginning of December 2014. After a rebound on Friday and early Monday, crude prices fell back below $30 a barrel, not far from last week’s 12-year lows, ending a couple of days of gains for Wall Street stocks. China’s fickle stock markets have now slumped about 22 percent so far this year on concerns about the slowing economy and confusion over the central bank’s foreign exchange policy. Many investors […]