Where are the heavy water plants in the world?

Heavy water plants, which produce deuterium oxide (D2O), are primarily located in countries with nuclear research programs. Notable facilities include the ones in Canada, such as the Heavy Water Plant in Glace Bay, Nova Scotia, and another inTrail, British Columbia. Other countries with heavy water production capabilities include India, which operates the Heavy Water Plant in Kota, and Argentina, which has a plant in the province of Mendoza. Additionally, several countries, including Iran and South Korea, have established or are developing facilities for heavy water production.