进出口行发行1年期债券，规模50亿元，发行利率1.2800%，预期1.5000%，投标倍数3.71倍，边际倍数1.18倍；进出口行发行3年期债券，规模15亿元，发行利率1.6711%，预期1.6500%，投标倍数4.81倍，边际倍数15.00倍。

Group 1 - The Export-Import Bank issued a 1-year bond with a scale of 5 billion, an issuance rate of 1.2800%, and a bid-to-cover ratio of 3.71 times [1] - The Export-Import Bank also issued a 3-year bond with a scale of 1.5 billion, an issuance rate of 1.6711%, and a bid-to-cover ratio of 4.81 times [1] - The marginal bid-to-cover ratio for the 3-year bond was significantly high at 15.00 times, indicating strong investor demand [1]