Explosion at Largest U.S. Coking Plant Kills 1, Injures 10, Leaves 1 Missing

Location: U.S. Steel’s Clairton Plant near Pittsburgh, Pennsylvania
Time: Before 11:00 AM ET on August 11

Key Details:

1. Casualties:
   • 1 confirmed death
   • 10 injured (hospitalized)
   • 1 still missing (search ongoing)
2. Plant Background:
   • Largest coking facility in the U.S.
   • Employs ~1,300 workers
   • Annual coke production: 4.3 million tons
   • History of fatal explosions: 2009 and 2010
3. Emergency Response:
   • Air quality monitors detected no dangerous sulfur dioxide spikes
   • Residents within 1 mile advised to:
     ✓ Stay indoors
     ✓ Close windows
     ✓ Set AC to recirculation mode
     ✓ Avoid outdoor activities
4. Official Statements:
   • U.S. Steel CEO David Burritt: “Working with authorities to determine cause”
   • PA Gov. Josh Shapiro: Coordinating with local officials, monitoring rescue efforts
   • Allegheny County Executive Sara Innamorato: Issued safety guidance

Corporate Context:

• Recent acquisition: Japan’s Nippon Steel finalized purchase of U.S. Steel in June 2024
• Regulatory hurdle: Deal required 18 months for U.S. government approval