The prosecution, which is reinvestigating the damage caused by humidifier sterilizers, has summoned and questioned senior executives of SK Chemicals (currently SK Discovery) on March 5.
The Seoul Central District Prosecutors' Office summoned five senior executives of SK Chemicals, who are suspected of supplying raw materials of humidifier sterilizers harmful to human body.
SK Chemicals supplied Methylchloroisothiazolinone (CMIT), a harmful ingredient of humidifier sterilizer that was sold by Aekyung, as well as polyhexamethyleneguanidine (PHMG), which was used as raw material of humidifier sterilizer by Oxy.
The prosecution started the reinvestigation last year when a civic group called the "humidifier disinfectant disaster national network” accused about 10 former and incumbent executives of SK Chemicals and the Aekyung. The defendants include Choi Chang-won and Kim Chul, CEOs of SK Discovery.
The prosecution arrested former CEO and executives of Aekyung who manufactured and sold humidifier sterilizers on Feb. 27 on charges of destroying evidence.
The prosecution also indicted a former CEO of Pillar, a manufacturing and delivery company, on charges of receiving CMIT materials from SK Chemical and turn over them to Aekyung.