2008, Ecotech Environmental Technology Ltd. was established (Hong Kong Headquarter)

    2009, Ecotech Technology Development (Shenzhen) Co., Ltd. was established (China Operations Headquarter)

    2010, Ecotech Technology Development (Jinjian) Co., Ltd. was established

    2011, Ecotech Technology Development (Changsha) Co., Ltd. was established

    2011, OPEL Solar Inc. (United States) along with Ecotech Environmental Technology Ltd. jointly set up to established OSAC 

    2012, Ecotech Environmental Technology Ltd. and Hunan Electric Power Design Institute jointly set up to establish OSAC New Energy (Hunan) Co., Ltd.