Who manufacturers what? (IMAGE) Terry Collins Assoc Caption The 35 partner countries are the EU (plus the United Kingdom and Switzerland), China, India, Japan, Korea, Russia and the United States. These nations, representing over 50% of world population and over 80% of global GDP, have pooled vast expertise and resources to build the first industrial-scale research fusion device. About 90 percent of ITER Member contributions are made in-kind, adding international complexity to an already multifaceted machine, called a Tokamak (video: https://bit.ly/2ZUSNr7). When finished, the Tokamak will be made up of more than 1 million components. Credit ITER Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.