Japan's Mitsui & Co is looking to sell its stakes in U.K. power assets including First Hydro Company and four fossil fuel plants, two sources familiar with the matter said on Thursday.
A Mitsui & Co spokesman declined to comment.
The sources said that Mitsui had mandated Rothschild to manage the sales.
Rothschild declined to comment.
(Reporting by Sarah McFarlane and Karolin Schaps)