Kim Seok-bong, Citigroup's Vice Chairman in Korea, will leave the bank. He joins Morgan Stanley as co-head of its South Korea investment banking division. Kim spent two decades at Citigroup. He recently handled major transactions, including the landmark SK Hynix ADR listing.

Morgan Stanley acquires significant talent with his move to a key competitor. The firm seeks to bolster its presence in the South Korean market. At Morgan Stanley, Kim will share leadership responsibilities with current head Kim Se-won. He starts as early as November.