HONG KONG/TOKYO -- China's key stock indexes opened higher but soon turned negative on the first trading day following the Lunar New Year break, with a nascent U.S.-China tariff battle likely spelling more volatility to come.
The SSE Composite Index, which measures the Shanghai market, closed 0.65% lower after starting off 0.6% higher. The CSI 300, which tracks major stocks listed in Shanghai and Shenzhen, dropped 0.58%.







