South Korean internet company Interpark Corp. (035080.KQ) said Monday it hasn't completed an official contract to sell its online auction site Gmarket Inc. (GMKT) to U.S.-based eBay Inc. (EBAY).

"Our company (Interpark) hasn't so far made an official contract with eBay on the Gmarket stake sale," Gmarket's top shareholder Interpark said in a regulatory filing.

The comment came after a local online news provider edaily reported earlier that the U.S.-based company would buy a 34.2% stake in Gmarket for $413 million Wednesday.

-By Jung-Ah Lee, Dow Jones Newswires; 822-2198-2233; jung-ah.lee@dowjones.com