Source: American Power Group Corp.

GreenMan Technologies Fiscal 2008 Third Quarter Financial Release and Conference Call Alert

SAVAGE, MN--(Marketwire - August 8, 2008) - GreenMan Technologies, Inc. (OTCBB: GMTI), a leading regional tire recycler of over 12 million scrap tires per year and emerging leader in patented cold-cure recycled rubber molded products, today announced that it plans to release the results for its third fiscal quarter ended June 30, 2008 on Tuesday, August 12, 2008, before the market opens. GreenMan will host a conference call later that morning at 10:00 AM EDT in which we will discuss the results for the quarter ended June 30, 2008. To participate, please call 1-877-874-1856 and ask for the GreenMan call. A replay of the conference call can be accessed until 11:50 PM on August 29, 2008 by calling 1-888-203-1112 and entering pass code 5794885.

About GreenMan Technologies

GreenMan Technologies pursues technological processes and unique marketing programs to transform recycled materials into renewable fuel, alternative energy, recycled feedstock, and innovative recycled products. Over twelve million tires are collected and recycled annually into tire-derived fuel, tire-derived aggregate, and crumb rubber feedstock for playground, athletic track and field, and road surfacing. Through GreenMan's subsidiary, Welch Products, the company develops and markets branded products and services that provide schools and other political subdivisions viable solutions for safety, compliance, and accessibility. To learn more about all of the companies, please visit the following websites: www.welchproducts.com www.nssi-usa.com www.playtribe.com

"Safe Harbor" Statement: Under the Private Securities Litigation Reform Act

With the exception of the historical information contained in this news release, the matters described herein contain "forward-looking" statements that involve risk and uncertainties that may individually or collectively impact the matters herein described, including but not limited to the possibility that we may not be able to secure the financing necessary to return to sustained profitability, our ability to successfully integrate the recent Welch Products acquisition and realize the anticipated benefits, the possibility that we may not realize the benefits of product acceptance, economic, competitive, governmental, seasonal, management, technological and/or other factors outside the control of the Company, which are detailed from time to time in the Company's SEC reports, including the Quarterly Report on Form 10-QSB for the fiscal period ended March 31, 2008. The Company disclaims any intent or obligation to update these "forward-looking" statements.

Contact Information: Contacts: Chuck Coppa CFO or Lyle Jensen CEO GreenMan Technologies 800-526-0860