进出口行发行2年期债券，规模50亿元，发行利率1.3746%，预期1.4500%，投标倍数3.24倍，边际倍数1.00倍。

Group 1 - The company issued a 2-year bond with a total scale of 5 billion yuan [1] - The issuance interest rate was set at 1.3746%, with an expected rate of 1.4500% [1] - The bid-to-cover ratio was 3.24 times, indicating strong demand, while the marginal ratio was 1.00 times [1]