Representatives at Nexon, Kakao, Netmarble and MBK declined to comment.

Billionaire Jungju Kim is selling a 98.64 percent stake held by himself and his wife in NXC, the holding company of Nexon, in a deal that at potentially $16 billion, would rank as one of the biggest gaming deals worldwide.

(Reporting by Hyunjoo Jin; Editing by Susan Fenton)