This document discusses the production of chitosan from black soldier fly larvae. It describes the life stages of black soldier fly and the industrial process used to extract chitinous substance from the larvae through decalcification, protein removal, and depigmentation. This extracted chitinous substance is then processed to remove acetyl groups and obtain chitosan. The global market for black soldier fly products including chitosan is expected to reach $2.57 billion by 2030 due to increasing demand for alternative proteins and biomaterials.