Photo : YONHAP News
Hanwha Aerospace CEO Son Jae-il is under investigation for an explosion at a Daejeon facility that killed five workers and injured two others last Monday.
The Daejeon Regional Employment and Labor Office under the labor ministry said Monday that it suspects Son violated the Serious Accidents Punishment Act.
The office is also looking into Ka Jae-woong, who headed the Daejeon plant, for potential violations of the Occupational Safety and Health Act.
The Daejeon Metropolitan Police has named Ka a suspect on charges of occupational negligence resulting in death.
Police have placed travel bans on Son, Ka and another Hanwha Aerospace official.