Japan, July 22 -- Hitachi, Ltd. and the National Institutes for Quantum Science and Technology ("QST") began developing a second prototype, a full-scale mockup of an outer vertical target which is one of the most important components of a divertor in January 2022. Divertors are important pieces of components used in the ITER fusion experimental reactor that is under construction in Southern France. With streamlining the production method through measures such as the introduction of an automatic welding system as detailed below, we completed the second prototype in March 2025. Furthermore, we today announce that a high-heat-load sample of an outer vertical target has passed the rigorous certification test by the ITER Organization, which cons...