The 18th International Conference on Ion Sources (ICIS2019) will take place from September 1-6, 2019 at the Crowne Plaza, Lanzhou, China on the beautiful Yellow River shore. The Crowne Plaza Lanzhou is located on the north bank of the Yellow River adjacent to the Gansu International Conference and Exhibition Center and Gansu Grand Theatre. It has a very beautiful view of the Yellow River and also the downtown of Lanzhou city. It is about 2 km to the downtown of Chengguan District and 3 km to the Campus of IMP. Crown Plaza is about 65 km from the Airport and 5 km from the main train station. It has convenient transportation with either Taxi or Buses.