"Going back to Greenlight's roots, one of their longstanding competencies has been designing and building custom test equipment in certain specialized areas, in particular those involving complex fluid dynamics," said Pierre Rivard, President and CEO of Hydrogenics Corporation. "This is one of the key attributes that Greenlight brought to the table when they came together with Hydrogenics and to the extent that it supports our ongoing business goals we will continue to capitalize on these strengths. QuestAir is a highly regarded player in the emerging hydrogen economy and we value collaborations such as this that are part of our bigger picture of commercial sustainability."

"QuestAir has an excellent history working with Greenlight and Hydrogenics on past projects. We are pleased to continue this cooperative relationship through the purchase of test equipment to support the development of our industrial hydrogen purification equipment," said Jonathan Wilkinson, President and CEO of QuestAir.

About Hydrogenics Corporation

Hydrogenics Corporation (Nasdaq: HYGS; TSX: HYG) is a leading clean power generation company, engaged in the commercialization of hydrogen and fuel cell technology, and test stations for fuel cells. The company is building a sustainable business, in a potentially "game changing technology" for transportation, stationary and portable power. Hydrogenics, based in Mississauga, Ontario, Canada, has operations in British Columbia, Canada, Japan, the United States and Germany. For more information, please visit www.hydrogenics.com

About Greenlight Power Technologies, Inc.

Greenlight Power Technologies Inc. (www.greenlightpower.com), a wholly-owned subsidiary of Hydrogenics Corporation, is a leading global supplier of testing and diagnostic equipment to the fuel cell industry. It has supplied fuel cell test equipment to the world's premier fuel cell stack manufacturers, component manufacturers, system integrators and research organizations. Greenlight provides a full suite of test equipment for fuel cell stack, stack component, reformer and system testing for companies focused on portable, stationary, and transportation fuel cell applications.

About QuestAir Technologies Inc.

QuestAir Technologies, Inc. has developed proprietary gas purification technology that is being applied to several large existing and emerging world markets, including industrial hydrogen production and stationary and automotive fuel cells. QuestAir is a private company based in Burnaby, British Columbia.

This release contains forward-looking statements within the meaning of the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Law of 1995. These statements are based on management's current expectations and actual results may differ from these forward-looking statements due to numerous factors, including changes in the competitive environment adversely affecting the products, markets, revenues or margins of Hydrogenics' business. Readers should not place undue reliance on Hydrogenics' forward-looking statements. Investors are encouraged to review the section captioned "Risk Factors" in Hydrogenics' regulatory filings with the Canadian securities regulatory authorities and the United States Securities and Exchange Commission for a more complete discussion of factors that could affect Hydrogenics' future performance. Furthermore, the forward-looking statements contained herein are made as of the date of this release, and Hydrogenics undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release. The forward-looking statements contained in this release are expressly qualified by this.