Case studies
A rooflight is not a walking surface: the Korea Zinc Onsan fall
A worker died during roof work at Korea Zinc’s Onsan No. 2 plant on 16 September 2026. Reporting based on the company disclosure described a broken rooflight and failure of a safety-belt rope.
Read more →
Do not stand in the crush gap: The SK Energy Ulsan catalyst-replacement serious injury
A worker was seriously injured during catalyst replacement at SK Energy’s Ulsan facility on 4 March 2026, according to later reporting. Small vehicle movements can become dangerous beside fixed structures.
Read more →
A stuck pig is a changed condition: The Ulsan KET pipeline-cleaning fatality
A worker was reported killed during pipeline cleaning in Ulsan in January 2024. The case raises a practical question: what happens to stored pressure and potential projectiles when a cleaning pig stops moving?
Read more →
Should you enter to rescue a colleague?: The FFG liquid nitrogen release (2021)
Oxygen-deficiency hazards and emergency preparation in the FFG incident.
Read more →
Recognize fragile rooflights before access: The Kentucky demolition fatality (2022)
Kentucky FACE 22KY046 reports a fatal fall through a skylight on 24 May 2022 during demolition. It addresses assessment, fall protection, training and communication.
Read more →
Rescue preparation before a nitrogen emergency
Unprepared rescue entry can create further casualties. HSE addresses rescue equipment, training and emergency arrangements before work.
Read more →