Copenhagen Atomics is a Danish molten salt technology company developing mass manufacturable molten-salt reactors. The reactor type invented by Copenhagen Atomics is a thorium molten salt breeder reactor, which fits inside a custom built 40 foot shipping container and can be mass manufactured on assembly lines with an expected output of minimum 1 reactor per day (per assembly line). The target customers are large plants producing commodities such as aluminum, ammonia or hydrogen.

Copenhagen Atomics announced that their prototype reactors are ready to be tested in a real life scenario, in a critical experiment at the Paul Scherrer Institute in Switzerland.