Salt Lake City-based EnergySolutions announced Tuesday it is in discussions to sell its business unit that manages the decommissioning and operation of Magnox reactors in the UK."We were approached by third parties to purchase the ESEU business, which holds the Magnox contract with the (UK's Nuclear Decommissioning Authority), and are considering a number of proposals and transaction structures," David Lockwood, FirstEnergy CEO, said in a release.The potential buyers were not named, with the company adding only that the NDA "has raised no objections to the sale consideration." EnergySolutions bought the company holding the Magnox contract in 2007 and manages the sites of several decommissioned Magnox gas-cooled reactors. It also runs the last operating Magnox reactor at Wylfa. The contract expires in 2014. The NDA will have a say in any potential sale.The spinoff is only the latest shakeup at EnergySolutions, where Lockwood assumed the CEO chair from Val John Christensen last month. The business' other divisions hold contracts to decommission the Zion nuclear plant in Illinois and to help with water decontamination at Japan's Fukushima Daiichi under a contract with Toshiba.