FRANKFURT (Reuters) - E.ON (>> E.ON SE) is confident that it can sell its stake in uranium enrichment company Urenco, its chief executive said, but cautioned it was impossible say when that would happen due to the company's complex ownership structure.

All owners have agreed on a sale, Johannes Teyssen told journalists during a conference call following results, adding the Dutch government's recent decision to sell its stake had been a significant step in the process.

E.ON and RWE (>> RWE AG) jointly hold a third in Urenco on behalf of the German government, while Britain and the Netherlands also hold a third each.

Teyssen said in May he hoped to sell the stake before next year's spin-off of Uniper, which will house the company's power plant business, energy trading and oil and gas activities.

(Reporting by Christoph Steitz; Editing by Maria Sheahan)

Stocks treated in this article : RWE AG, E.ON SE