TOKYO (JAXA PR) — Sample analysis of material returned from asteroid Ryugu through the efforts of the Hayabusa2 Project Team are being carried out by the Hayabusa2 Initial Analysis Team, which consists of 6 sub-teams, and two Phase-2 curation institutions, Okayama University and the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) Kochi Institute for Core Sample Research. This paper summarises research results from the Okayama University Phase-2 curation that was published in the Proceedings of the Japan Academy on June 10, 2022.