Accompanied by Professor Yang Ye, Deputy Director of Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Dr. Walter Fischli (Vice President), Dr. Urs Regenass (Head of Oncology) and two of their colleagues from Actelion Pharmaceuticals Ltd. (Switzerland) visited the Chinese National Compound Library (CNCL) in the afternoon of June 5, 2012. A brief introduction of the history and development status of the facility was given by Professor Ye to the Swiss guests, who greatly admired the advanced infrastructure and rich cultural environment of CNCL.