Trading house Marubeni Corp. plans to sell part of its equity stake in Daiei Inc. to Aeon Co. or Wal-Mart Stores Inc., eyeing a tieup with either of the supermarket chains, sources said Wednesday.

Marubeni, which became Daiei's largest shareholder in August through a purchase of shares held by the government bailout agency, plans to sell 10 percent to 15 percent of Daiei's outstanding shares, the sources said.

Marubeni will consider plans by both Aeon and Wal-Mart to support Daiei in choosing a partner, possibly in October, they said.