Ann: Drilling Update - Samphire Project, page-10

No. In order to meet or get close to meeting demand massive investment will be needed in the next few years. The U shortage is current and it will become apparent to everyone how huge the supply gap is going to be in the next few years as well...The investments in the Nuclear industry are happening now. Thise investments will run in the trillions of dollars over the next decade. To secure supply they will start looking for pounds well before these huge investments come online.

But I expect to hold a substantial part of my U stock for at least several years and could be 5 years+. But depends entirely on the developments in the space.