ZBB Energy Corporation (ZBB) is engaged in designing, developing, and manufacturing energy storage and power electronic systems to solve a range of electrical system challenges in global markets for utility, governmental, commercial, industrial and residential customers. The Company operates in two segments: ZBB Energy Storage and Power Electronic Systems and Tier Electronics Power Conversion Systems. The ZBB Energy Storage and Power Electronics Systems business segment designs and manufactures electrical power management platforms. The Company offers a portfolio of intelligent power management platforms for grid independent, grid interactive and grid conversion environments in a variety of applications around the world. In January 21, 2011, the Company acquired Tier Electronics LLC.