Goldman Sachs (GS - Get Report) has been hired by German energy group E.ON (EONGY) to look at its options regarding a sale of the company's remaining stake in power plant and trading business Uniper, Reuters reports.

E.ON maintained a 46.65% stake in Uniper after it was listed back in September.

"Most power firms would want a part of Uniper, but there is hardly anyone with a profile that would accommodate all of the group's activities," a source close to the matter told Reuters.

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