Renewable Energy Trade Board Corporation, formerly China Technology Development Group Corporation, along with its subsidiaries is principally engaged in the provision of solar energy products and solutions in the People�s Republic of China and Europe (Solar Energy Operations). The Company�s products are solar modules for electricity generation and the related application products, such as solar power stations, solar home systems, solar lighting and solar chargers. Solar modules are assemblies of solar cells, which are electrically interconnected and encapsulated in a weatherproof panel. Solar cells are semiconductor devices that directly convert sunlight into direct current electricity. It produces a variety of solar modules ranging from 5 to 280 watts in power. On August 26, 2011, a subsidiary of the Company, China Merchants Zhangzhou Development Zone Trendar Solar Tech Ltd. incorporated a 100% owned subsidiary, Xiamen Chuangri New Energy Technology Ltd, (Chuangri) in China.