Eastman Officials Say They Have Made Some Changes Following October 2017 Explosions. The Chemical Giant Also Said They Were Pleased With The Outcome Of That Tennessee Department Of Environment And Conservation Report. The Seven-Page Memo Determined Blamed Blockage Of A 30-Year Old Valve As The Most Likely Cause Of The Incident At The Gas Gasification Facility. Among The Changes Made Because Of The Incident Is To Ensure The Proper Training Of Its Personnel In The Event Of A Similar Situation In The Future.