Lee Sang-hoon is stepping down from his position as chairman of Samsung Electronics' board. According to Reuters, the company will be appointing a successor soon. Lee Sang-hoon was found guilty of sabotaging legitimate union activities and sentenced to 18 months in prison last December. As ZDNet reports, he was using several tactics to disrupt and disarm unions, including delaying negotiations between management and laborers, closing subcontracting companies with active unions, and digging for information that could persuade key union members to leave. Twenty-five other people were convicted on similar charges, according to the BBC.