Collectively known as the "Two Academies" along with the Chinese Academy of Engineering, it is an institution of China, functioning as the national scientific think tank and academic governing body, providing advisory and appraisal services on issues stemming from the national economy, social development, and science and technology progress. It is headquartered in Beijing, with branch institutes all over mainland China. It has also created hundreds of commercial enterprises, Lenovo being one of the most famous.
The Chinese Academy of Sciences is the world's largest scientific and research organisation. It employs around 60,000 people working in 114 institutions, and has been consistently ranked first among research institutions around the world.
The Chinese Academy derived from the Academia Sinica, founded in 1928 by the Guomindang Nationalist Government. After the Communist Party took control of mainland China, Academia Sinica was renamed Chinese Academy of Sciences. The Chinese Academy of Sciences has six academic divisions: Mathematics and Physics, Chemistry, Life Sciences and Medical Sciences, Earth Sciences, Information Technological Sciences, Technological Sciences.
Based on the number of papers published in Nature and/or other research journals published by the Nature Publishing Group (NPG), the Chinese Academy of Science has ranked 1st among research institutions in the world according to the Nature Publishing Index elaborated by NPG in 2014 and 2015.