The furthest along is Terrestrial Energy, they already passed the first step in the Canadian review process. Moltex Energy is still in the first stage of Canad

The furthest along is Terrestrial Energy, they already passed the first step in the Canadian review process. Moltex Energy is still in the first stage of Canadian review process, as they had to relocate from Britain to Canada. Because the British regulatory system is not really active. There is also Flibe Energy and they actually want to use lithium fluoride (LiF) and beryllium fluoride (BeF2) salt (hence the name). But that is a much longer term project and they are not anywhere close to commercialiastion. They are also working in the US Regulatory system that is not close to being ready to even start a serious commercionalisation process right now. They are also not targeting commercial energy as their primary market. There is also ThorCon power I don't know as much about them and they are not engadged in any Western effort for commercialisation as far as I know. There used to be Transatomic Power, but the never wanted to use beryllium fluoride either and have open sourced their reactor design.