Updates

10/16/2025

EDT, a forensic engineering and consulting firm, released the initial findings from its independent investigation of the August 11th Clairton Plant incident. These initial findings are consistent with our own, and we remain committed to working closely with all parties involved in investigations—including the Chemical Safety Board, OSHA, and EDT—to ensure a comprehensive understanding of the event. In parallel, we continue our investigation, and we’ve already strengthened several safety protocols based on what we’ve learned.

• Shortly after the incident, we prohibited the use of high-pressure water for valve cleaning, as we review best practices.
• We are conducting a thorough review and restructuring of our Management of Change program, which assesses proposed changes in procedures and evaluates risk.
• We are reviewing corporate governance documents and adjusting language, as appropriate, to provide more detailed guidelines.

Employees will be trained on any program or procedure changes that are implemented.  

Throughout this process, our top priority continues to be the safety and well-being of our employees, their families, and our communities. Safety First will always be our core value.

Read EDT’s update here: https://www.edtengineers.com/blog-post/edt-releases-preliminary-findings-on-explosion-at-us-steel-clairton-coke-works