In this book, we investigate various aspects of critical mineral governance in the context of sustainability transition. We give perspectives around the critical metal requirements of sustainability transition in a forward-looking manner. We discuss the answers to the following questions: The authors of the chapters of this book take a multi-perspective approach and provide insights from industrial ecology, environmental engineering, and sustainable management of natural resources. The information provided will help readers to understand critical metal requirements of present and future key technologies and will help societies to develop and implement sustainable supply strategies.