Amami Innovation Corporation, an affiliate of Tenkohjin, was introduced as an example of a case study of a regional trading company in the book “The Basics of Regional Trading Companies and How They Work”(author: Ikuhiro Nakamura, published by Shuwa System).
Amami Innovation is the operator in Amami of the urban development project undertaken by Atelier Tenkohjin, and operates the 「Den-paku」lodging facility and the「Magun-hiroba」community care facility, both renovated and designed by Tenkohjin.
If you are interested in urban planning and regional development, please take a look at this book, which explains in detail, with illustrations, the definition of a regional trading company, its business model, and the key points of its design and operation.