Hydrogen Engine Center, Inc. Invites Shareholders to Attend Its Annual Meeting

ALGONA, Iowa--Hydrogen Engine Center, Inc. (OTCBB:HYEG) (HEC) announced today that all shareholders are welcome to attend its annual meeting which is scheduled for 7:30 P.M. Wednesday, May 30, 2007 in Algona, Iowa. At the meeting the Company’s founder, Ted Hollinger, and key management will present a detailed presentation outlining its strategy for growth, its numerous technology achievements and its plans for developing near-term shareholder value. Tours and demonstrations are being offered immediately prior to the annual meeting. Don Vanderbrook, Chief Operating Officer of HEC, explained that these tours will provide shareholders the opportunity to view the exciting and tangible technologies that have been developed at HEC over the past year.

Hydrogen Engine Center, Inc. is unaware of any new or additional information that would adversely affect the value of the company or the price of its stock. The company remains committed to the tactical and strategic actions it has identified to offer solutions to the world’s energy and environmental needs through its innovative engine and power generation technologies.

The company has a number of clients and partners using its clean-burning engines and solutions, in both industrial and power generation applications. The company is building upon these proof points to ensure HEC has a scalable and viable growth plan. The company continues to develop its manufacturing, sales and marketing strategies to achieve sustainable growth.