Shandong Linuo Paradigma Co., Ltd. is a Sino-German joint venture established by Linuo Group Holdings Co., Ltd. (China) and Ritter Energie-und Umwelttechnik GmbH & Co. KG (Germany) on 30th April 2001. It is a comprehensive enterprise integrating scientific research, production, sales, international trade of solar energy, air energy and other renewable energy fields. Being as one of the largest solar thermal manufactures in Asia, Linuo Paradigma has passed the ISO9001, ISO14000
Beijing Ronder Green Energy Technology Co., Ltd. is established in 2009 with its location in Changping District, Beijing, China, specializing in flat plate solar collector. As a new established company, Ronder is willing to make solar products available for more people.