Had pleaded guilty in November to tampering with consumer products.
Found to have used front companies in China and a group of co-conspirators to export restricted US technology.
Lee Jae-yong found guilty of offering bribes to South Korea’s former president.
Received $651,000 in kickbacks as a purchasing director at Utz Quality foods.
Research finds that prisoners receiving educational training were 43% less likely to re-offend than those who did not.
Ruling shows a tougher stance against wrongdoing by company leaders.