MANAGEMENT TEAM

Teong C. Lim, Ph.D., serves as President and CEO of Electronic Sensor Technology. He has as a director of Electronic Sensor Technology since January 31, 2005 and served as Vice President of Corporate Development from February 1, 2005 through January 25, 2006. Dr. Lim was the Director of Corporate Development of Electronic Sensor Technology, L.P. from March 1995 through August 2000 and was the Manager of Corporate Development of Electronic Sensor Technology, L.P. from August 2000 through February 2005. Dr. Lim has been the President of Amerasia Technology, Inc., a subsidiary of Electronic Sensor Technology, since 1984.

Since 1997, Dr. Lim has been a director of Crystal Clear Technology, Sdn. Bhd., a privately-owned Malaysian company that manufactures and markets a high-contrast liquid crystal display (LCD) product line. Dr. Lim is a Senior Member of the Institute of Electrical and Electronics Engineers and Professional Engineers of Canada. Dr. Lim has served on the Program Committee and Session Chairman for many symposia and has more than 30 technical publications. Dr. Lim received a Bachelor of Science degree in engineering from National Taiwan University, a Master of Science degree in engineering from Ottawa University and a Ph.D. degree from McGill University. From 1968 to 1970, he was a Postdoctoral Fellow at Imperial College of Science and Technology, England. Dr. Lim also received an MBA degree from Pepperdine University in 1982.

William Wittmeyer currently serves as Chief Operating Officer (COO) and as a director of Electronic Sensor Technology. He has over 20 years experience in high-technology business and investment management. In 2003, he and Ms. Tham founded eXS Inc., a wireless access company, developing innovative and cost effective solutions for developing economics. Prior to founding these companies, Mr. Wittmeyer was a partner in a venture capital firm, investing in telecommunications and semiconductor start-ups. He was an early investor in Network Equipment Technologies Inc., UTSarcom, Zoran and IXYS. He has a B.Sc. (E.E.) from the Coast Guard Academy and an M.B.A. from Columbia University Graduate School of Business Administration.

Philip Yee currently serves as Secretary, Treasurer and Chief Financial Officer of Electronic Sensor Technology. Mr. Yee has served as Secretary, Treasurer and Chief Financial Officer of Electronic Sensor Technology since November 1, 2006. From April 2006 through November 1, 2006, Mr. Yee served as Controller of Electronic Sensor Technology. From February 2005 through April 2006, Mr. Yee was Corporate Controller of Sleepwell Laboratories, Inc., a regional healthcare provider, and its related companies. From 2001 through February 2005, Mr. Yee was Corporate Controller of BLT Enterprises, Inc., a regional recycling company and real estate developer, and its related companies. Mr. Yee received a B.A. and an M.B.A. from the University of Michigan.