John GristJohn Grist was a control and instrumentation expert at Doosan Babcock. He spent over 20 years with Doosan Babcock working on 600MW coal-fired boilers in China. He oversaw technology transfer of Benson control technology to Harbin Boiler Company and Dosan Heavy Industries. Prior to that, he worked for Bailey Meters and Controls, spent seven years with WS Atkins. Read More Read Less