Background
Sakuma, Sumio was born on March 16, 1960 in Kobe, Hyogo, Japan.
Sakuma, Sumio was born on March 16, 1960 in Kobe, Hyogo, Japan.
Bachelor of Science in Mining Engineering, Akita University, Japan, 1982.
Drilling engineer JMC Geothermal Engineering Company Ltd., Takizawa, Japan, 1982—1999. Director, chief engineer JMC Geothermal Engineering Limited company, since 2000.
Married Atsuko Sakuma.