Exhibit 99.1 AMENDMENT NO. 1 AND WAIVER This Amendment No. 1 and Waiver (this "Amendment"), dated as of March 22, 2005, is entered into by and between GREENMAN TECHNOLOGIES, INC., a Delaware corporation (the "Company"), GREENMAN TECHNOLOGIES OF...Secured Convertible Term Note Amendment • March 28th, 2005 • Greenman Technologies Inc • Plastics products, nec • New York
