AtkinsRéalis Group Inc., based in Montreal, is looking to build new Candu nuclear power reactors in Canada and globally. The company has tackled one potential obstacle by securing a source of heavy water in Argentina through a memorandum of understanding with the country's National Atomic Energy Commission. Heavy water is crucial for Candu reactors, enabling them to utilize natural uranium as fuel, unlike reactors using enriched uranium which is expensive and scarce. The Industrial Heavy Water Plant in Neuquén, Argentina, is set to produce 200 tonnes of heavy water annually, aiding in the construction of new Candu reactors. AtkinsRéalis intends to provide technical assistance in restarting the plant and help with project financing. This partnership also allows for the potential supply of heavy water to Canadian utilities. Heavy water plays a vital role in nuclear physics, offering a cost-effective solution for nuclear power generation by using natural uranium. The agreement with Argentina opens doors for collaboration on potential future projects and facilities in Canada, supporting the development of multiple Candu reactors. Although heavy water production is expensive, the use of the monothermal ammonia hydrogen exchange process is seen as a more manageable and environmentally friendly method compared to past techniques. Overall, the collaboration between AtkinsRéalis and Argentina marks a positive step towards advancing nuclear power technology and production.