Recycling valuable materials is crucial for sustainable societal development, with the depletion of high-quality natural resources and the rise of resource nationalism globally. In Japan, advancing the recycling of both rare and base metals has become a vital issue.

This research unit focuses on developing innovative, environmentally harmonious recycling technologies for nonferrous and rare metals using advanced smelting and refining techniques. It also collaborates with industry partners to nurture young researchers and engineers in this field. After five years of progress in its first period, the unit initiated its second period in January 2017.

This period was not only built on the first period's accomplishments but also amplified outreach activities to enhance the field's appeal to the broader public, particularly targeting women and younger students in high school and below.

The third period, which began in January 2022, continues to develop these initiatives while incorporating activities related to the Sustainable Development Goals (SDGs) and STEAM education.