Julio Ponce Lerou

Julio Ponce Lerou owns a 30% stake in Sociedad de Quimica y Minera de Chile (SQM), a publicly-traded chemicals and mining company.He is a former son-in-law of the late Chilean dictator Augusto Pinochet, and SQM was privatized by Pinochet's government in the 1980s. SQM is one of the world's largest miners of lithium, which is used in batteries for electric cars.For almost 40 years Ponce headed SQM, which also mines and sells potassium nitrate and iodine -- chemicals used in fertilizers. He resigned as chairman of SQM in April 2015, citing personal reasons.