**2. Contributions**

Eleven research articles and one review article were submitted, peer-reviewed, and have been published in this Special Issue of *Minerals* entitled "Sustainable production of metals for low-carbon technologies". The articles cover mineral concentration techniques (flotation and magnetic separation) and hydrometallurgy processes (leaching and recovery of extracted metal). All the articles published have high scientific rigour and will be of great interest to wider readers in the scientific community. The contents of the published articles are briefly summarized as follows.
