China's Installed Power Capacity Exceeds 3B KW;China Issues ￥40B 20-year Ultra-long-term Special Treasury Bonds ;Logistics of New Intl Land-Sea Trade Corridor Sees Steady Development;Russia to Open Direct flights from Krasnoyarsk to Hainan in Late June;Hainan Supports "Direct Pick-up of Imported Goods from Aircraft Apron" Hainan Reduces Down Payment Ratio for First Homes to 15%