He worked as Lecturer for the Department of Metallurgical & Minerals Engineering, WA School of Mines, Curtin University. Dr. Otsuki received his PhD in Geosystem Engineering, The University of Tokyo, Japan. He has completed his Masters in Geosciences, Mining Engineering and Materials Processing, Akita University, Japan. Dr. Otsuki has received numerous awards which includes 2 international awards in the world renowned congress/conference etc. His research projects were supported by grant acquisition of more than 1.6 Million Euros in total from the government and other funding sources. Dr. Otsuki research interests focus on Colloid and Interface Science, Mineral Processing, Recycling.