Orient Sundar Group was established in Gaobeidian, Hebei Province in 1988, is the front runner of China's ultra low energy consumption building technology and the organizer of 23rd International Passive House Conference. The Group adheres to the vision of "Making Building More Energy-saving and Making Life Getting Better", it has long-term committed to the research and application of green energy-saving building. It is the world's only whole life circle system integration manufacturing enterprise in passive ultra-low energy consumption building. The Group has built and operated the only whole industry chain intelligent manufacturing base in passive ultra-low energy consumption building industry in the world, of which the products contains passive door, window, intelligent sun-shading, integrated environment control unit combined heat pump with outdoor air, new exterior thermal insulation material and dozens of core products of the industry, which obtained certifications of EU. North America, Australia and so onSince 2013, It has built the only National Building Energy-saving Technology International Innovation Park in China, the only NationalEnterprise Technology Center in passive house field, which was recognized as the Key High-tech Enterprises of National Torch Program,National Base for International Scientific and Technological Cooperation, National Intellectual Property Right Dominant Enterprises,National AAAA Level Industrial Tourist Attractions, and Popular Science Education Base in Beijing, Tianjin and Hebei Region.