Elliott Management, which has stakes worth more than $1 billion (£0.72 billion) in the affiliates, on Monday called on the group to adopt a holding company structure, return excess cash and offer a clear dividend policy, among other suggestions.

The giant autos-to-steel group last month announced a plan to streamline its ownership structure, responding to calls from the government and investors for greater transparency and better governance South Korea's family-controlled conglomerates, or chaebols.

But Elliott said the plan was not sufficient to address the discount in Hyundai Motor Group shares compared with its overseas peers.

Hyundai Motor shares rose as much as 3.1 percent to their highest level in three months. Hyundai Mobis stocks were up 2.3 percent and Kia Motors rose 0.8 percent in the flat wider market <.KS11>.

(Reporting by Hyunjoo Jin; Editing by Stephen Coates)