Hong Kong rail giant the MTR Corporation has raised €3 billion (U$3.5 billion) by selling its first euro-denominated public green bonds, in its largest bond deal to date.The semi-privatised corporation said on Thursday that the sale also marked the largest Asia ex-Japan non-sovereign euro green bond offering.Amid a string of new rail projects in Hong Kong, the MTR Corp is raising fresh capital to fund them. The latest deal is the third round of bond sales so far this year, bringing the total...