Japanese shares plunged on Wednesday amid lingering global growth concerns and persistent territorial dispute with China. Speculation that Japan's companies will report disappointing profits in Q3 also weighted down on the Japanese stock index. However, hopes that weakening economic outlook will force China's government to provide additional stimulus capped the downswing. The Nikkei 225 Index sank 1.98% to close at 8,596.23. All but one sector within the index dropped. The only gainer was oil and gas sector as turmoil in the Middle East lifted energy prices. JX Holdings rose 1.89%. Dragging the Japan's stock index lower, care makers retreated on falling sales in China. Toyota Motors and Honda dropped 1.90% and 1.14%. Toyota Motors announced that it would recall 7.4 million vehicles globally due to problems with power windows. Technology companies tumbled 1.59% after US chip producer, Intersil Corp, followed Intel Corp suit and lowered its revenue forecast.