Professor Jiankang Zhu, member of the National Academy of Sciences USA, and Dr. Karsten Melcher, Associate Professor of Van Andel Research Institute (USA), visited the Chinese National Compound Library (CNCL) in the afternoon of May 16, 2014. They were accompanied by Professor Huaqiang Xu, Professor of Shanghai Institute of Materia Medica, Chinese Academy of Sciences, and warmly greeted by Professor Ming-Wei Wang, Director of CNCL. Following a brief presentation by Dr. Wang, the honorable guests highly appreciated the achievements made in recent years by this world-class resource platform in drug discovery.