Who is nac international? NAC International is a world-leading provider of nuclear fuel cycle technology and consulting solutions. Serving more than 200 customers worldwide, NAC International supports a host of perse projects around the globe.Why choose nac? NAC is an International school with continuous education from Nursery to graduation. “ Quality Education is the foundation for a brighter future, and the most valuable tool for a real difference in yourself, your country and the whole world.”What are the rules for entry to the nac school? Entrance to the NAC School gates is allowed daily (on weekdays) at 8:30 AM and not before. Parents and visitors are allowed to come in wearing a face mask or face shield and sticking to this rule secure the health and safety of all.