Explosion at South Korean Defense Plant Kills Five Workers

Jun 1, 2026

An explosion and fire on June 1, 2026, at a Hanwha Aerospace defense manufacturing facility in Daejeon, South Korea killed five workers and injured two others. The blast occurred on a rocket propellant production line that produces large propulsion engines. Authorities are investigating the cause, which appeared to involve water being used to clean explosive material from tools. The factory layout remains protected under national security laws.

Hanwha Aerospace explosion

▪Hanwha Aerospace's factory in Daejeon produces large propulsion engines and handles rocket propellants.
▪Authorities were unable to obtain the Hanwha Aerospace factory's layout since it is protected under national security laws.
▪An explosion and fire occurred on June 1, 2026, on a South Korean production line for rocket propellant at a factory operated by Hanwha Aerospace in the city of Daejeon.

Casualty details

▪The two survivors of the Hanwha Aerospace explosion, including one who was badly burned, escaped from the facility themselves.
▪Authorities have yet to identify the victims of the Hanwha Aerospace explosion because their bodies were severely damaged.
▪Five people died in the June 1, 2026, explosion at Hanwha Aerospace's Daejeon factory.
▪All five people who died in the Hanwha Aerospace explosion were employed by Hanwha.
▪The five dead in the Hanwha Aerospace explosion included two temporary workers in their 20s.

Cause investigation

▪An explosion triggered the fire at the Hanwha Aerospace factory on June 1, 2026.
▪The blast at the Hanwha Aerospace factory appeared to have occurred while water was being used to clean explosive material from tools making rocket propellant.
▪The cause of the blast at the Hanwha Aerospace factory was still being investigated as of June 1, 2026.

Company response

▪Shares in Hanwha Aerospace fell 2.8% in afternoon trade on June 1, 2026.
▪Hanwha Corp shares dropped 3.4% on June 1, 2026.
▪Hanwha Aerospace Chief Executive Officer Son Jae-il pledged to cooperate fully with authorities to determine the cause of the June 1, 2026, accident.

Presidential directive

▪South Korean President Lee Jae Myung called for the mobilization of all available resources to respond to the June 1, 2026, Hanwha Aerospace accident.