Who manufacturers what? (IMAGE) Terry Collins Assoc Caption <p>The 35 partner countries are the EU (plus the United Kingdom and Switzerland), China, India, Japan, Korea, Russia and the United States. <p>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. <p>About 90 percent of ITER Member contributions are made in-kind, adding international complexity to an already multifaceted machine, called a Tokamak (video: <a target="_blank" href="https://bit.ly/2ZUSNr7">https://bit.ly/2ZUSNr7</a>). When finished, the Tokamak will be made up of more than 1 million components.</p> 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.