| April 3, 2012 |
Lakeside Energy and American Securities Take Equity Stake in InEnTec Inc. |
| October 12, 2011 |
Waste Management Takes Equity Position in InEnTec Through Sale of its Interest in S4 Energy Solutions |
| October 27, 2010 |
Seattle Business Magazine Honors InEnTec with "2010 Top Innovator" Award |
| September 27, 2010 |
InEnTec Wins The Wall Steet Journal 2010 Technology Innovation Award in Energy

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| March 3, 2010 |
InEnTec's PEM™ Technology Featured in New-Waste-to-Clean-Energy Project
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| October 13, 2009 |
InEnTec LLC Named as a Finalist in the Platts Global Energy Awards |
| June 2, 2009 |
InEnTec LLC Appoints Karl Schoene as CEO |
| May 21, 2009 |
Waste Management and InEnTec Create Joint Venture to Develop and Operate Plasma Gasification Facilities |
| April 7, 2009 |
InEnTec Chemical Strengthens Management Team with Appointments of Gary McDow and Alan Saggers |
| October 27, 2008 |
Lakeside Energy and InEnTec Create New Company to Help Build a Sustainable Future for the Chemical Industry |
| July 22, 2008 |
Ethanol Breakthrough: InEnTec Announces First Commercial-Scale Plant Using PEM™ Technology to Recycle Municipal Waste into Ethanol for Cars and Trucks |
| June 6, 2008 |
Breakthrough Technology Produces Hydrogen from Chemical Residuals |
| October 1, 2007 |
Dow Corning to Use Integrated Environmental Technologies, LLC Plasma-Based Waste Recycling System |
| June 8, 2005 |
Integrated Environmental Technologies Installs First Plasma Recycling Facility in Taiwan |
| May 5, 2004 |
IET Sells PEM™ in Taiwan |
| February 8, 2004 |
Kawasaki Heavy Industries Signs Collaboration and Licensing Agreement with IET |
| February 5, 2003 |
Testing Sponsored by U.S. EPA Verified Environmental Performance of PEM™ |
| October 14, 2002 |
U.S. TDA Grants IET Funding for Eastern European Radioactive Waste Study |
| May 24, 2002 |
Dedication Ceremony for First PEM™ System in Japan |
| April 3, 2002 |
Dr. E. Gary Cook Becomes Chairman of IET’s Management Committee |
| January 8, 2002 |
IET Begins Installation of PEM™ System in Japan |
| November 6, 2001 |
IET adds Dr. E. Gary Cook – Former Chairman of Witco Corp. – to its Management Committee |
| February 13, 2001 |
IET Begins Operation of PEM™ System at APET |
| December 20, 2000 |
IET Begins Operation of PEM™ System at ATG |
| December 5, 2000 |
Asia Pacific Environmental Technology has Medical Waste Blessing Ceremony |
| November 20, 2000 |
Hawaiian Delivery Complete |
| September 12, 2000 |
Nick Pappas Joins Management Committee |
| July 20, 1999 |
Washington State Department of Ecology Chief Tom Fitzsimmons Visits IET Technology Center |
| July 7, 1999 |
PEM™ Process Granted First Ever RCRA / TSCA Mixed Waste Operating Permit |
| June 15, 1999 |
Ten Ton-Per-Day Commercial Prototype Operational |
| March 14, 1999 |
IET Received Order from Asia Pacific Environmental Technologies for Medical Waste System in Honolulu, HI |
| October 1, 1998 |
IET Chosen to Participate in EvTEC Program |
| September 1998 |
IET Wins R&D 100 Award for PEM™ System |
| July 21, 1998 |
Agreement Signed for Sale of PEM™ Off-Gas Treatment System for ATG Radioactive Waste Facility |
| February 15, 1998 |
Start-Up of First Commercial PEM™ Unit Now Complete |
| September 5, 1997 |
Agreement Signed for Sale of PEM™ System for Radioactive Waste Facility to Process Mixed Wastes |
| April 10, 1997 |
First Ever Plasma Enhanced Melter™ System Comes On-Line |