Asian shares were mixed Monday amid uncertainties about Britain’s exit from the European Union and the ongoing trade conflict between the U.S. and China. Asian shares Japan’s benchmark Nikkei 225 gained nearly 0.3% in afternoon trading to 22,555.14. South Korea’s Kospi picked up 0.2% to 2,064.27, while Hong Kong’s Hang Seng added 0.2% to 26,783.22. […]