Mentmore, the UK storage company, has said it wants to remain independent, despite being stalked by five potential bidders which has sent the shares up 25% to value the group at £193m (€280m).

A source close to the company, advised by Bridgewell, the corporate finance boutique, said: "The company has not put itself up for sale. In the event that these approaches are at a level which undervalues the group, the board and shareholders are happy to see the company continue as a listed independent company. The prospects for the business remain good."